Release v202611-00026

- Claude Code as an engine: chats on a "claude-code/<alias>" model run through
  the claude CLI (stream-json); tool approvals go through our permission
  system. Sign in from the web UI (URL + pasted code), CLI version and update
  from Settings; the Docker image contains the CLI.
- Small models (8k context) for side tasks: input is cut to the model's
  context window; one-line chat status, "What does this do?" on approvals,
  "Plan as automation" (job draft from a chat).
- Mobile: top bar no longer widens the page, image viewer (zoom, swipe, mark
  up, use in message), jump to previous own message, message menu, time under
  every message.
- Approvals: push actions (allow/reject), "always allow in this project"
  (never for dangerous commands) with revoke.
- Per turn: changed files with diffs and rollback; project check command with
  a green/red badge and "let the agent fix it".
- Colour tags for chats in the colours of the active theme.
- Project defaults for new chats, project page (timeline), offline queue.

Tested in a throwaway container with a mock model (8k small model): 26 API
checks passed (permissions, diffs, checks, defaults, job draft, side-task
budget, Claude Code status/login URL, unsigned-in chat).

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

CHANGELOG.md

@@ -3,6 +3,81 @@
 All notable changes to CodeCraft. Versions follow [Semantic Versioning](https://semver.org/);
 until 1.0, minor versions may contain breaking changes.
 
+## [v202611-00026] – 2026-11-14
+
+### Added
+
+- **Claude Code as an engine:** chats with a "Claude Code" model (Opus, Sonnet, Haiku, default) are
+  run by the `claude` CLI. Its events become normal chat messages; its tool approvals go through
+  CodeCraft's permission system (cards, push buttons, "allow for this project", diffs, sandbox).
+  Sign in from the web UI (Settings → Account → Claude Code: open the sign-in URL, paste the code),
+  see the CLI version and install updates (admins; installed into the persistent home). The Docker
+  image now contains the CLI.
+- **Small models (8k context) for side tasks:** `small_model` jobs cut their input to the model's
+  context window. New with it: a one-line status per chat in the session list, "What does this
+  do?" on approvals, and "Plan as automation" (drafts job instructions from a chat).
+- **Mobile:** the top bar no longer pushes the page sideways (extra actions moved into the ⋯ menu);
+  an image viewer for all images (zoom, swipe between images, mark up and attach to the message,
+  use in the message); jump to the previous own message; message menu (copy, quote, fork from
+  here, edit and resend); date and time under every message.
+- **Approvals:** push notifications can allow or reject right away; "always allow in this project"
+  is remembered per folder (never for dangerous commands) and can be revoked in the ⋯ menu.
+- **Changes per turn:** files changed by a turn with diffs and "roll back to before this turn".
+- **Check after each turn:** a command per project (e.g. `cargo test`) runs after turns that
+  changed files; green/red badge with output and "let the agent fix it".
+- **Colour tags for chats:** tinted chat background and a badge in the list, drawn in the colours
+  of the active theme.
+- **Project defaults, project page, offline queue:** new chats in a folder inherit model, mode,
+  colour, instructions and folder; a timeline of a project's chats (sidebar → project → ⋯);
+  messages written without a connection are sent when it is back.
+
+## [v202611-00025] – 2026-11-12
+
+### Fixed
+
+- **Models did not find built-in tools via `mcp_search`** (e.g. `generate_3d` in a chat that
+  had just been switched from plan to build): the search only looked at MCP servers. It now also
+  lists matching built-in tools and says whether the current mode has them ("available – call it
+  directly", or "not in the read-only mode plan – ask the user to switch to build").
+
+## [v202611-00024] – 2026-11-12
+
+### Added
+
+- **3D models with fal.ai (`generate_3d`):** from an image (a project file or one pasted into the
+  chat, optional back/left/right views), from a text prompt, or from an image steered by a prompt
+  (the image is refined with the prompt first – the 3D models take no text with an image).
+  Styles textured, geometry (untextured, for 3D printing) and low-poly, optional PBR. Uses fal.ai's
+  queue (takes minutes, with progress), saves a GLB plus a preview image, books the cost.
+  Defaults: Hunyuan3D v3 image-to-3D / text-to-3D (`[images] model_3d`, `model_3d_text`); Tripo
+  and Trellis endpoints work too.
+- The chat card offers "Open in the 3D view"; the media overview lists 3D models (also STL/3MF
+  written by the agent) with their previews.
+
+## [v202611-00023] – 2026-11-12
+
+### Added
+
+- **Tokens and cost under every answer:** a small line under each answer of the model shows the
+  tokens sent/received and the cost of all requests of that turn.
+
+### Fixed
+
+- **Total cost of chats stopped growing (opencode Go):** opencode now reports plan requests as
+  "nothing charged" (cost 0, usage in `allowance`), and CodeCraft took the 0. Plan requests are
+  valued at the model's list prices again; earlier ones are corrected once on start.
+- **Saving opencode Go models failed after fetching prices** ("data did not match any variant of
+  untagged enum ModelEntry"): opencode lists cache prices per duration for some models
+  (`{"30m": …, "12h": …}`); the shortest duration is used now.
+- The chat title in the top bar no longer shrinks to a single letter when there are many chips.
+
+## [v202611-00022] – 2026-11-11
+
+### Added
+
+- **Theme "Tintenblau"** (dark: ink blue with cream text; light: paper with dark ink), from the
+  Tintenblau desktop theme; also in the terminal client.
+
 ## [v202611-00021] – 2026-11-11
 
 ### Added

Dockerfile

@@ -89,7 +89,7 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
     && rm -rf /var/lib/apt/lists/*
 # Language servers for diagnostics after edits (rust-analyzer/gopls/clangd can be
 # installed by agents: rustup component add rust-analyzer, go install …).
-RUN npm install -g typescript@5 typescript-language-server pyright && npm cache clean --force
+RUN npm install -g typescript@5 typescript-language-server pyright @anthropic-ai/claude-code && npm cache clean --force
 COPY --from=server /codecraft /usr/local/bin/codecraft
 COPY --from=web /web/dist /app/web
 COPY --from=cli /out /app/cli

README.md

@@ -11,7 +11,7 @@
 </p>
 
 <p align="center">
-  <img alt="Version v202611-00021" src="https://img.shields.io/badge/version-v202611--00021-d69e2e?style=flat-square">
+  <img alt="Version v202611-00026" src="https://img.shields.io/badge/version-v202611--00026-d69e2e?style=flat-square">
   <img alt="License: MIT" src="https://img.shields.io/badge/license-MIT-689d6a?style=flat-square">
   <img alt="Rust backend" src="https://img.shields.io/badge/backend-Rust-b7410e?style=flat-square&logo=rust">
   <img alt="React PWA" src="https://img.shields.io/badge/frontend-React%20PWA-2d81ff?style=flat-square&logo=react">
@@ -176,6 +176,10 @@ output limit, reasoning effort, extra request options and prices per million tok
 - **Images (fal.ai):** the agent drafts cheap previews (FLUX schnell), asks which one to
   refine, and creates the final image with the best model for the purpose – Nano Banana Pro
   refines the chosen draft, Ideogram handles lettering, Recraft design work.
+- **3D models (fal.ai):** `generate_3d` turns an image (also one pasted into the chat, plus
+  optional back/left/right views), a text prompt, or an image steered by a prompt into a GLB
+  model – textured, untextured for 3D printing, or low-poly (Hunyuan3D v3 by default,
+  `[images] model_3d` / `model_3d_text`). Open it in the 3D view of the file manager.
 
 ## Terminal client
 
@@ -296,6 +300,7 @@ in turn are based on:
 | Coffee | Dark, Latte | [megabyte0x/omarchy-coffee-theme](https://github.com/megabyte0x/omarchy-coffee-theme) | MIT |
 | Solarized | Dark, Light | [Solarized by Ethan Schoonover](https://ethanschoonover.com/solarized/) | MIT |
 | Tokyo Night | Night, Day | [folke/tokyonight.nvim](https://github.com/folke/tokyonight.nvim) | Apache-2.0 |
+| Tintenblau | Dark, Light | original (zink/tintenblau desktop theme) | private |
 
 Further standard themes (palettes re-created from the published colour specifications):
 

cli/src/palettes.json

@@ -701,6 +701,60 @@
 "syntax-type": "#b58900",
 "syntax-variable": "#586e75"
 },
+"tintenblau-dark": {
+"accent": "#7aa0cc",
+"accent2": "#d4b46a",
+"aqua": "#96b4bc",
+"bg0": "#232a44",
+"bg1": "#2b3352",
+"bg2": "#353e60",
+"bg3": "#4a5478",
+"blue": "#7aa0cc",
+"fg0": "#f5efe3",
+"fg1": "#eae4d6",
+"fg2": "#d6d0c2",
+"fg3": "#bdcfd4",
+"green": "#96b4bc",
+"muted": "#8e96b4",
+"on-accent": "#232a44",
+"purple": "#c896b2",
+"red": "#d47a6a",
+"syntax-comment": "#8e96b4",
+"syntax-function": "#7aa0cc",
+"syntax-keyword": "#c896b2",
+"syntax-meta": "#baa0c4",
+"syntax-number": "#96b4bc",
+"syntax-string": "#d47a6a",
+"syntax-type": "#d4b46a",
+"syntax-variable": "#eae4d6"
+},
+"tintenblau-light": {
+"accent": "#2a3f6f",
+"accent2": "#6a4a2c",
+"aqua": "#3a5a6a",
+"bg0": "#f0ead9",
+"bg1": "#e6dfd0",
+"bg2": "#dbd3c1",
+"bg3": "#c9c0ac",
+"blue": "#3a5a8a",
+"fg0": "#0f1628",
+"fg1": "#1e2a4a",
+"fg2": "#3a3f5a",
+"fg3": "#5e5a6a",
+"green": "#4a5a3a",
+"muted": "#8a8694",
+"on-accent": "#f0ead9",
+"purple": "#5a4a72",
+"red": "#8a3028",
+"syntax-comment": "#8a8694",
+"syntax-function": "#3a5a6a",
+"syntax-keyword": "#2a3f6f",
+"syntax-meta": "#4a5a3a",
+"syntax-number": "#5a4a72",
+"syntax-string": "#8a3028",
+"syntax-type": "#6a4a2c",
+"syntax-variable": "#1e2a4a"
+},
 "tokyonight-dark": {
 "accent": "#7aa2f7",
 "accent2": "#ff9e64",

core/src/config.rs

@@ -159,7 +159,13 @@ impl ModelConfig {
     /// Cost of one request now. Cache prices default to the input price.
     /// The provider's own figure wins when it reports one (opencode).
     pub fn cost(&self, u: &crate::types::Usage) -> f64 {
-        u.cost.unwrap_or_else(|| self.cost_at(u, chrono::Utc::now()))
+        match u.cost {
+            // A plan request (opencode Go): nothing charged, the usage counts toward the plan –
+            // its value at the model's list prices.
+            Some(c) if c == 0.0 && u.allowance.is_some_and(|a| a > 0.0) => self.cost_at(u, chrono::Utc::now()),
+            Some(c) => c,
+            None => self.cost_at(u, chrono::Utc::now()),
+        }
     }
 
     /// Cost of one request at a given time: context tiers and time factors applied.
@@ -187,6 +193,21 @@ mod price_tests {
         Usage { input_tokens: input, output_tokens: output, cache_read_tokens: read, ..Default::default() }
     }
 
+    #[test]
+    fn plan_requests_are_valued_at_list_prices() {
+        let m = ModelConfig { input_price: Some(1.0), output_price: Some(2.0), ..Default::default() };
+        let mut u = usage(1_000_000, 1_000_000, 0);
+        u.cost = Some(0.0);
+        u.allowance = Some(0.4);
+        assert_eq!(m.cost(&u), 3.0);
+        // Charged by the provider: that amount; free without a plan: free.
+        u.cost = Some(0.7);
+        assert_eq!(m.cost(&u), 0.7);
+        u.cost = Some(0.0);
+        u.allowance = None;
+        assert_eq!(m.cost(&u), 0.0);
+    }
+
     #[test]
     fn tiers_and_multipliers() {
         let m = ModelConfig {

core/src/types.rs

@@ -187,8 +187,17 @@ pub struct Session {
     /// unless it is the chat currently open in Telegram.
     #[serde(default, skip_serializing_if = "std::ops::Not::not")]
     pub telegram_quiet: bool,
+    /// One-line "where things stand", written by the small model after a turn (session list).
+    #[serde(default, skip_serializing_if = "String::is_empty")]
+    pub summary: String,
+    /// Colour tag of the chat (a palette name, see `SESSION_COLORS`); the client maps it to the theme.
+    #[serde(default, skip_serializing_if = "Option::is_none")]
+    pub color: Option<String>,
 }
 
+/// Names of the colour tags: the client draws them with the colours of the active theme.
+pub const SESSION_COLORS: &[&str] = &["red", "orange", "yellow", "green", "aqua", "blue", "purple"];
+
 impl Session {
     pub fn clean_room(&self, default: bool) -> bool {
         self.clean_room.unwrap_or(default)
@@ -243,6 +252,8 @@ pub enum Event {
     /// Compaction of the history: state "started", "done" or "failed"; auto = triggered by
     /// a nearly full context (tokens of limit).
     Compaction { session_id: String, state: String, auto: bool, tokens: Option<u64>, limit: Option<u64> },
+    /// The project's check command ran after a turn: status "running" | "passed" | "failed" | "timeout".
+    CheckResult { session_id: String, message_id: String, status: String, exit_code: Option<i32>, duration_ms: u64, output: String },
 }
 
 impl Event {
@@ -265,7 +276,8 @@ impl Event {
             | Waiting { session_id, .. }
             | QueueUpdated { session_id, .. }
             | StepStarted { session_id, .. }
-            | Compaction { session_id, .. } => Some(session_id),
+            | Compaction { session_id, .. }
+            | CheckResult { session_id, .. } => Some(session_id),
             McpStatus { .. } => None,
         }
     }

server/src/api.rs

@@ -89,6 +89,12 @@ pub fn router(app: AppState) -> Router {
         .route("/sessions/{id}/abort", post(abort))
         .route("/sessions/{id}/compact", post(compact))
         .route("/sessions/{id}/rewind", post(rewind))
+        .route("/sessions/{id}/job-draft", post(job_draft))
+        .route("/projects/overview", get(project_overview))
+        .route("/sessions/{id}/project-defaults", get(get_project_defaults).put(put_project_defaults).delete(delete_project_defaults))
+        .route("/sessions/{id}/check", get(get_check).put(put_check))
+        .route("/sessions/{id}/checks", get(list_checks))
+        .route("/sessions/{id}/check/run", post(run_check))
         .route("/sessions/{id}/changes", get(changed_files))
         .route("/sessions/{id}/shells", get(list_shells))
         .route("/sessions/{id}/shells/{shell}/kill", post(kill_shell))
@@ -98,6 +104,13 @@ pub fn router(app: AppState) -> Router {
         .route("/sessions/{id}/queue/flush", post(flush_queue))
         .route("/sessions/{id}/queue/{item}", delete(delete_queue_item))
         .route("/permissions/{id}", post(reply_permission))
+        .route("/permissions/{id}/explain", post(explain_permission))
+        .route("/claude/status", get(claude_status))
+        .route("/claude/login", post(claude_login_start).delete(claude_login_cancel))
+        .route("/claude/login/code", post(claude_login_code))
+        .route("/claude/logout", post(claude_logout))
+        .route("/claude/update", post(claude_update))
+        .route("/sessions/{id}/approvals", get(project_approvals).delete(delete_project_approval))
         .route("/questions/{id}", post(answer_question))
         .route("/pending", get(pending))
         .route("/mcp", get(mcp_status))
@@ -595,13 +608,17 @@ fn validate_cwd(app: &App, user: &User, cwd: Option<String>) -> Result<PathBuf,
 async fn create_session(Extension(user): Extension<User>, State(app): State<AppState>, Json(body): Json<CreateSession>) -> ApiResult {
     let cwd = validate_cwd(&app, &user, body.cwd)?;
     let cfg = app.config();
+    // What the project's chats start with (⋯ menu "use as project default").
+    let defaults = app.store.project_defaults(&cwd.display().to_string()).ok().flatten().unwrap_or(Value::Null);
+    let dstr = |k: &str| defaults[k].as_str().filter(|v| !v.is_empty()).map(String::from);
     let model = body
         .model
         .filter(|m| !m.is_empty())
+        .or_else(|| dstr("model").filter(|m| app.registry().resolve(m).is_ok()))
         .or_else(|| Some(cfg.server.default_model.clone()).filter(|m| !m.is_empty()))
         .or_else(|| app.registry().first_model())
         .ok_or_else(|| ApiError(StatusCode::BAD_REQUEST, "no model configured – ask an admin to add a provider".into()))?;
-    let mode = body.permission_mode.unwrap_or_else(|| "auto".into());
+    let mode = body.permission_mode.or_else(|| dstr("permission_mode")).unwrap_or_else(|| "auto".into());
     if !crate::permission::MODES.contains(&mode.as_str()) {
         return Err(ApiError(StatusCode::BAD_REQUEST, "invalid permission mode".into()));
     }
@@ -624,10 +641,12 @@ async fn create_session(Extension(user): Extension<User>, State(app): State<AppS
         worktree: None,
         pinned: false,
         archived: false,
-        folder: None,
+        folder: dstr("folder"),
-        instructions: String::new(),
+        instructions: dstr("instructions").unwrap_or_default(),
         // New chats keep their approvals and questions out of Telegram (⋯ menu turns it on).
         telegram_quiet: true,
+        summary: String::new(),
+        color: dstr("color").filter(|c| codecraft_core::types::SESSION_COLORS.contains(&c.as_str())),
     };
     let s = app.save_session(s)?;
     Ok(Json(json!(s)))
@@ -843,6 +862,19 @@ impl WindowQ {
     }
 }
 
+/// The cost of each answer for the chat view (usage.cost: charged, or valued at list prices).
+fn with_costs(app: &App, mut messages: Vec<crate::types::Message>) -> Vec<crate::types::Message> {
+    let registry = app.registry();
+    for m in &mut messages {
+        if let (Some(u), Some(spec)) = (m.usage.as_mut(), m.model.as_deref()) {
+            if let Ok((_, model)) = registry.resolve(spec) {
+                u.cost = Some(model.cost(u));
+            }
+        }
+    }
+    messages
+}
+
 async fn get_session(Extension(user): Extension<User>, State(app): State<AppState>, Path(id): Path<String>, Query(q): Query<WindowQ>) -> ApiResult {
     let s = readable(&app, &user, &id)?;
     let busy = app.is_busy(&id);
@@ -853,7 +885,7 @@ async fn get_session(Extension(user): Extension<User>, State(app): State<AppStat
     match q.window() {
         Some(w) => {
             let (messages, older, newer) = app.store.messages_window(&id, &w)?;
-            out["messages"] = json!(messages);
+            out["messages"] = json!(with_costs(&app, messages));
             out["has_older"] = json!(older);
             out["has_newer"] = json!(newer);
         }
@@ -867,7 +899,7 @@ async fn session_messages(Extension(user): Extension<User>, State(app): State<Ap
     readable(&app, &user, &id)?;
     let w = q.window().ok_or_else(|| ApiError(StatusCode::BAD_REQUEST, "before, after, around or limit is required".into()))?;
     let (messages, older, newer) = app.store.messages_window(&id, &w).map_err(|e| ApiError(StatusCode::NOT_FOUND, format!("{e:#}")))?;
-    Ok(Json(json!({"messages": messages, "has_older": older, "has_newer": newer})))
+    Ok(Json(json!({"messages": with_costs(&app, messages), "has_older": older, "has_newer": newer})))
 }
 
 /// Images, videos and audio files shown in a chat (all of it, with subagents).
@@ -908,6 +940,8 @@ struct UpdateSession {
     instructions: Option<String>,
     /// Approvals and questions of this chat are not sent to Telegram.
     telegram_quiet: Option<bool>,
+    /// Colour tag ("" removes it).
+    color: Option<String>,
 }
 
 async fn update_session(Extension(user): Extension<User>, State(app): State<AppState>, Path(id): Path<String>, Json(body): Json<UpdateSession>) -> ApiResult {
@@ -920,6 +954,9 @@ async fn update_session(Extension(user): Extension<User>, State(app): State<AppS
     if let Some(m) = &body.model {
         app.registry().resolve(m)?;
     }
+    if body.color.as_deref().is_some_and(|c| !c.is_empty() && !codecraft_core::types::SESSION_COLORS.contains(&c)) {
+        return Err(ApiError(StatusCode::BAD_REQUEST, "invalid colour".into()));
+    }
     if body.permission_mode.as_deref().is_some_and(|p| !crate::permission::MODES.contains(&p)) {
         return Err(ApiError(StatusCode::BAD_REQUEST, "invalid permission mode".into()));
     }
@@ -959,6 +996,9 @@ async fn update_session(Extension(user): Extension<User>, State(app): State<AppS
         if let Some(q) = body.telegram_quiet {
             s.telegram_quiet = q;
         }
+        if let Some(c) = body.color {
+            s.color = (!c.is_empty()).then_some(c);
+        }
     })?;
     Ok(Json(json!(s)))
 }
@@ -1218,13 +1258,47 @@ async fn kill_shell(Extension(user): Extension<User>, State(app): State<AppState
 #[derive(Deserialize)]
 struct ChangesQuery {
     since_message: String,
+    /// Include a unified diff per file.
+    #[serde(default)]
+    diff: bool,
+    /// Only changes before this message (one turn instead of everything since).
+    until_message: Option<String>,
 }
 
 /// Files the agent changed since a message (for the rewind dialog).
 async fn changed_files(Extension(user): Extension<User>, State(app): State<AppState>, Path(id): Path<String>, Query(q): Query<ChangesQuery>) -> ApiResult {
     readable(&app, &user, &id)?;
     let since = app.store.message_created_at(&id, &q.since_message)?.unwrap_or(i64::MAX);
-    let files: Vec<Value> = app.store.checkpoints_since(&id, since)?.into_iter().map(|(p, c)| json!({"path": p, "created": c.is_none()})).collect();
+    let until = match &q.until_message {
+        Some(m) => app.store.message_created_at(&id, m)?.unwrap_or(i64::MAX),
+        None => i64::MAX,
+    };
+    let files: Vec<Value> = app
+        .store
+        .checkpoints_between(&id, since, until)?
+        .into_iter()
+        .map(|(p, c)| {
+            let mut v = json!({"path": p, "created": c.is_none()});
+            if q.diff {
+                // Checkpoint (state before the agent's first change) against the file now.
+                let old = c.map(|b| String::from_utf8_lossy(&b).into_owned()).unwrap_or_default();
+                let new = std::fs::read_to_string(&p);
+                v["deleted"] = json!(new.is_err());
+                let new = new.unwrap_or_default();
+                let mut diff = similar::TextDiff::from_lines(&old, &new).unified_diff().context_radius(3).header(&p, &p).to_string();
+                if diff.len() > 60_000 {
+                    let mut end = 60_000;
+                    while !diff.is_char_boundary(end) {
+                        end -= 1;
+                    }
+                    diff.truncate(end);
+                    v["truncated"] = json!(true);
+                }
+                v["diff"] = json!(diff);
+            }
+            v
+        })
+        .collect();
     Ok(Json(json!(files)))
 }
 
@@ -1278,6 +1352,201 @@ async fn reply_permission(Extension(user): Extension<User>, State(app): State<Ap
     Ok(Json(json!({"ok": true})))
 }
 
+/// Instructions for an automation drafted from this chat (small model); the client creates the job.
+async fn job_draft(Extension(user): Extension<User>, State(app): State<AppState>, Path(id): Path<String>) -> ApiResult {
+    let s = writable(&app, &user, &id)?;
+    let (name, prompt) = runner::draft_job(&app, &s).await.map_err(|e| ApiError(StatusCode::BAD_GATEWAY, format!("{e:#}")))?;
+    Ok(Json(json!({"name": name, "prompt": prompt, "cwd": s.cwd, "agent": s.agent})))
+}
+
+// --- Claude Code: sign-in from the web UI ---------------------------------------------------
+
+#[derive(Deserialize, Default)]
+struct ClaudeStatusQuery {
+    #[serde(default)]
+    refresh: bool,
+}
+
+async fn claude_status(Extension(user): Extension<User>, State(app): State<AppState>, Query(q): Query<ClaudeStatusQuery>) -> Json<Value> {
+    if q.refresh {
+        crate::claude_code::refresh_latest().await;
+    }
+    Json(crate::claude_code::status(&app, &user.id).await)
+}
+
+#[derive(Deserialize, Default)]
+struct ClaudeLoginBody {
+    /// Anthropic Console (API billing) instead of the Claude subscription.
+    #[serde(default)]
+    console: bool,
+}
+
+async fn claude_login_start(Extension(user): Extension<User>, State(app): State<AppState>, body: Option<Json<ClaudeLoginBody>>) -> ApiResult {
+    let console = body.map(|b| b.0.console).unwrap_or(false);
+    let url = crate::claude_code::login_start(&app, &user.id, console).await.map_err(|e| ApiError(StatusCode::BAD_GATEWAY, format!("{e:#}")))?;
+    app.audit(Some(&user), "claude.login_start", "", "");
+    Ok(Json(json!({"url": url})))
+}
+
+#[derive(Deserialize)]
+struct ClaudeCodeBody {
+    code: String,
+}
+
+async fn claude_login_code(Extension(user): Extension<User>, State(app): State<AppState>, Json(b): Json<ClaudeCodeBody>) -> ApiResult {
+    crate::claude_code::login_code(&user.id, &b.code).await.map_err(|e| ApiError(StatusCode::BAD_REQUEST, format!("{e:#}")))?;
+    app.audit(Some(&user), "claude.login", "", "");
+    // New models may have appeared (the CLI is signed in now): clients reload them.
+    Ok(Json(crate::claude_code::status(&app, &user.id).await))
+}
+
+async fn claude_login_cancel(Extension(user): Extension<User>) -> Json<Value> {
+    crate::claude_code::login_cancel(&user.id);
+    Json(json!({"ok": true}))
+}
+
+/// Install the latest Claude Code CLI on the server (admins: it is shared by all accounts).
+async fn claude_update(Extension(user): Extension<User>, State(app): State<AppState>) -> ApiResult {
+    require_admin(&user)?;
+    let output = crate::claude_code::update().await.map_err(|e| ApiError(StatusCode::BAD_GATEWAY, format!("{e:#}")))?;
+    app.audit(Some(&user), "claude.update", "", "");
+    let mut v = crate::claude_code::status(&app, &user.id).await;
+    v["output"] = json!(output);
+    Ok(Json(v))
+}
+
+async fn claude_logout(Extension(user): Extension<User>, State(app): State<AppState>) -> ApiResult {
+    crate::claude_code::logout(&app, &user.id).await.map_err(|e| ApiError(StatusCode::BAD_GATEWAY, format!("{e:#}")))?;
+    app.audit(Some(&user), "claude.logout", "", "");
+    Ok(Json(crate::claude_code::status(&app, &user.id).await))
+}
+
+// --- project page ---------------------------------------------------------------------------------
+
+#[derive(Deserialize)]
+struct OverviewQuery {
+    cwd: String,
+}
+
+/// Chats of a project folder with what they did (files, checks, cost) plus the folder's settings.
+async fn project_overview(Extension(user): Extension<User>, State(app): State<AppState>, Query(q): Query<OverviewQuery>) -> ApiResult {
+    let filter = if user.is_admin() { None } else { Some(user.id.as_str()) };
+    let sessions: Vec<Session> = app.store.list_sessions(filter)?.into_iter().filter(|s| s.cwd == q.cwd).collect();
+    let ids: Vec<String> = sessions.iter().map(|s| s.id.clone()).collect();
+    let check = app.store.project_check(&q.cwd)?;
+    Ok(Json(json!({
+        "sessions": app.store.project_overview(&ids)?,
+        "check": check.map(|c| json!({"command": c.0, "enabled": c.1})),
+        "defaults": app.store.project_defaults(&q.cwd)?,
+        "currency": app.config().server.currency,
+    })))
+}
+
+// --- defaults of new chats per project ---------------------------------------------------------
+
+async fn get_project_defaults(Extension(user): Extension<User>, State(app): State<AppState>, Path(id): Path<String>) -> ApiResult {
+    let s = readable(&app, &user, &id)?;
+    Ok(Json(app.store.project_defaults(&s.cwd)?.unwrap_or(Value::Null)))
+}
+
+/// Remember this chat's colour, model, mode, instructions and folder for new chats in the project folder.
+async fn put_project_defaults(Extension(user): Extension<User>, State(app): State<AppState>, Path(id): Path<String>) -> ApiResult {
+    let s = writable(&app, &user, &id)?;
+    let data = json!({
+        "model": s.model, "agent": s.agent, "permission_mode": s.permission_mode,
+        "color": s.color, "instructions": s.instructions, "folder": s.folder,
+    });
+    app.store.set_project_defaults(&s.cwd, Some(&data))?;
+    Ok(Json(data))
+}
+
+async fn delete_project_defaults(Extension(user): Extension<User>, State(app): State<AppState>, Path(id): Path<String>) -> ApiResult {
+    let s = writable(&app, &user, &id)?;
+    app.store.set_project_defaults(&s.cwd, None)?;
+    Ok(Json(json!({"ok": true})))
+}
+
+// --- check command per project ------------------------------------------------------------------
+
+async fn get_check(Extension(user): Extension<User>, State(app): State<AppState>, Path(id): Path<String>) -> ApiResult {
+    let s = readable(&app, &user, &id)?;
+    let c = app.store.project_check(&s.cwd)?;
+    Ok(Json(json!({"command": c.as_ref().map(|c| c.0.clone()).unwrap_or_default(), "enabled": c.map(|c| c.1).unwrap_or(false)})))
+}
+
+#[derive(Deserialize)]
+struct CheckBody {
+    command: String,
+    #[serde(default = "yes")]
+    enabled: bool,
+}
+
+fn yes() -> bool {
+    true
+}
+
+async fn put_check(Extension(user): Extension<User>, State(app): State<AppState>, Path(id): Path<String>, Json(b): Json<CheckBody>) -> ApiResult {
+    let s = writable(&app, &user, &id)?;
+    if b.command.len() > 2000 {
+        return Err(ApiError(StatusCode::BAD_REQUEST, "command too long".into()));
+    }
+    app.store.set_project_check(&s.cwd, &b.command, b.enabled)?;
+    app.audit(Some(&user), "project.check", &s.cwd, &b.command);
+    Ok(Json(json!({"ok": true})))
+}
+
+async fn list_checks(Extension(user): Extension<User>, State(app): State<AppState>, Path(id): Path<String>) -> ApiResult {
+    readable(&app, &user, &id)?;
+    Ok(Json(json!(app.store.turn_checks(&id)?)))
+}
+
+/// Run the check now for the latest answer.
+async fn run_check(Extension(user): Extension<User>, State(app): State<AppState>, Path(id): Path<String>) -> ApiResult {
+    let s = writable(&app, &user, &id)?;
+    let last = app.store.messages(&id)?.into_iter().rev().find(|m| m.role == crate::types::Role::Assistant).ok_or_else(|| ApiError(StatusCode::BAD_REQUEST, "no answer yet".into()))?;
+    let app2 = app.clone();
+    tokio::spawn(async move {
+        let _ = crate::checks::run(&app2, &s, &last.id).await;
+    });
+    Ok(Json(json!({"ok": true})))
+}
+
+#[derive(Deserialize, Default)]
+struct ExplainBody {
+    lang: Option<String>,
+}
+
+/// Plain-words explanation of a pending approval (small model).
+async fn explain_permission(Extension(user): Extension<User>, State(app): State<AppState>, Path(id): Path<String>, body: Option<Json<ExplainBody>>) -> ApiResult {
+    check_pending(&app, &user, &id)?;
+    let ev = app.pending_events().into_iter().find(|e| matches!(e, Event::PermissionRequest { id: i, .. } if *i == id)).ok_or_else(|| not_found("request"))?;
+    let Event::PermissionRequest { session_id, tool, title, input, diff, .. } = ev else { return Err(not_found("request")) };
+    let session = app.session(&session_id)?;
+    let lang = body.and_then(|b| b.0.lang).unwrap_or_default();
+    let text = crate::runner::explain_tool_call(&app, &session, &tool, &title, &input, diff.as_deref(), &lang)
+        .await
+        .map_err(|e| ApiError(StatusCode::BAD_GATEWAY, format!("{e:#}")))?;
+    Ok(Json(json!({"text": text})))
+}
+
+/// What is allowed "for this project" (remembered across chats).
+async fn project_approvals(Extension(user): Extension<User>, State(app): State<AppState>, Path(id): Path<String>) -> ApiResult {
+    let s = readable(&app, &user, &id)?;
+    Ok(Json(json!(app.store.project_approvals(&s.cwd)?)))
+}
+
+#[derive(Deserialize)]
+struct ApprovalKey {
+    key: String,
+}
+
+async fn delete_project_approval(Extension(user): Extension<User>, State(app): State<AppState>, Path(id): Path<String>, Json(body): Json<ApprovalKey>) -> ApiResult {
+    let s = writable(&app, &user, &id)?;
+    app.store.delete_project_approval(&s.cwd, &body.key)?;
+    app.audit(Some(&user), "permission.project_revoked", body.key, "");
+    Ok(Json(json!({"ok": true})))
+}
+
 #[derive(Deserialize)]
 struct QuestionBody {
     /// question text → answer (string or array of strings); null = dismissed
@@ -1874,6 +2143,8 @@ async fn job_assistant(Extension(user): Extension<User>, State(app): State<AppSt
         folder: None,
         instructions,
         telegram_quiet: true,
+        summary: String::new(),
+        color: None,
     };
     let s = app.save_session(s)?;
     st.assistant_session = Some(s.id.clone());

server/src/app.rs

@@ -20,6 +20,8 @@ pub enum PermissionReply {
     Once,
     /// Allow this tool (or bash command prefix) for the rest of the session.
     Always,
+    /// Like `Always`, and remembered for the project folder (all chats, survives restarts).
+    Project,
     Reject,
 }
 
@@ -144,6 +146,11 @@ impl App {
                 Ok(n) => tracing::info!("moved {n} images of older chats to the image store"),
                 Err(e) => tracing::warn!("moving images to the image store: {e:#}"),
             }
+            match crate::budget::value_plan_requests(&self) {
+                Ok(0) => {}
+                Ok(n) => tracing::info!("valued {n} plan requests (opencode Go) at list prices"),
+                Err(e) => tracing::warn!("valuing plan requests: {e:#}"),
+            }
             match crate::images::backfill_copies(&self) {
                 Ok(0) => {}
                 Ok(n) => tracing::info!("kept copies of {n} generated images in the image store"),

server/src/budget.rs

@@ -361,6 +361,49 @@ fn opencode_when(w: &Value) -> Option<When> {
     Some((days, hours, from, until))
 }
 
+/// Plan requests (opencode Go) that were booked at 0: value them at the model's list
+/// prices of the time of the request. Idempotent – valued rows no longer match.
+pub fn value_plan_requests(app: &App) -> Result<usize> {
+    let mut n = 0;
+    for (row, ts, spec, usage) in app.store.plan_requests_without_cost()? {
+        let Ok((_, model)) = app.registry().resolve(&spec) else { continue };
+        let Some(at) = chrono::DateTime::from_timestamp_millis(ts) else { continue };
+        let cost = model.cost_at(&usage, at);
+        if cost > 0.0 {
+            app.store.set_usage_cost(row, cost)?;
+            n += 1;
+        }
+    }
+    Ok(n)
+}
+
+/// A price from opencode's list: a number, or one price per cache duration
+/// (`{"30m": 0.125, "12h": 0.25}`) – then the shortest duration (the default caching).
+fn price_of(v: &Value) -> Value {
+    match v {
+        Value::Number(_) => v.clone(),
+        Value::Object(o) => {
+            let secs = |k: &str| -> Option<f64> {
+                let (num, unit) = k.split_at(k.find(|c: char| c.is_ascii_alphabetic())?);
+                let n: f64 = num.parse().ok()?;
+                Some(n * match unit {
+                    "s" => 1.0,
+                    "m" => 60.0,
+                    "h" => 3600.0,
+                    "d" => 86400.0,
+                    _ => return None,
+                })
+            };
+            o.iter()
+                .filter(|(_, x)| x.is_number())
+                .min_by(|a, b| secs(a.0).unwrap_or(f64::MAX).total_cmp(&secs(b.0).unwrap_or(f64::MAX)))
+                .map(|(_, x)| x.clone())
+                .unwrap_or(Value::Null)
+        }
+        _ => Value::Null,
+    }
+}
+
 /// Model row from opencode's model list (prices per 1M tokens, tiers, time factors).
 fn opencode_model(m: &Value) -> Value {
     let cost = &m["cost"]["text"];
@@ -371,13 +414,13 @@ fn opencode_model(m: &Value) -> Value {
         for o in side["overrides"].as_array().into_iter().flatten() {
             let Some(gt) = o["when"]["context"]["gt"].as_u64() else { continue };
             let t = tiers.entry(gt).or_default();
-            t.insert(field.into(), o["price"].clone());
+            t.insert(field.into(), price_of(&o["price"]));
             if field == "input_price" {
-                if o["cache"]["read"].is_number() {
+                for (key, k) in [("read", "cache_read_price"), ("write", "cache_write_price")] {
-                    t.insert("cache_read_price".into(), o["cache"]["read"].clone());
+                    let p = price_of(&o["cache"][key]);
-                }
+                    if !p.is_null() {
-                if o["cache"]["write"].is_number() {
+                        t.insert(k.into(), p);
-                    t.insert("cache_write_price".into(), o["cache"]["write"].clone());
+                    }
                 }
             }
         }
@@ -412,10 +455,10 @@ fn opencode_model(m: &Value) -> Value {
         "max_input": m["limit"]["input"],
         "vision": images,
         "reasoning": m["capabilities"]["reasoning"]["supported"].as_bool().unwrap_or(false),
-        "input_price": input["price"],
+        "input_price": price_of(&input["price"]),
-        "output_price": output["price"],
+        "output_price": price_of(&output["price"]),
-        "cache_read_price": input["cache"]["read"],
+        "cache_read_price": price_of(&input["cache"]["read"]),
-        "cache_write_price": input["cache"]["write"],
+        "cache_write_price": price_of(&input["cache"]["write"]),
         "price_tiers": price_tiers,
         "price_multipliers": price_multipliers,
         "notes": notes,
@@ -481,6 +524,25 @@ pub async fn discover_prices(app: &App, provider: &str) -> Result<Value> {
 
 #[cfg(test)]
 mod tests {
+    #[test]
+    fn prices_per_cache_duration() {
+        use super::{opencode_model, price_of};
+        use serde_json::{Value, json};
+        assert_eq!(price_of(&json!(0.5)), json!(0.5));
+        assert_eq!(price_of(&json!({"12h": 0.25, "30m": 0.125})), json!(0.125));
+        assert_eq!(price_of(&json!({"1h": 2.0, "5m": 1.25})), json!(1.25));
+        assert_eq!(price_of(&Value::Null), Value::Null);
+        // A model of opencode's list with per-duration cache write prices.
+        let m = json!({"id": "gpt-6-luna", "limit": {"context": 1050000, "input": 922000, "output": 128000},
+            "cost": {"text": {"input": {"price": 0.1, "cache": {"read": 0.01, "write": {"30m": 0.125, "12h": 0.25}},
+                "overrides": [{"when": {"context": {"gt": 272000}}, "price": 0.2, "cache": {"read": 0.02, "write": {"30m": 0.25, "12h": 0.5}}}]},
+                "output": {"price": 0.5, "overrides": [{"when": {"context": {"gt": 272000}}, "price": 0.75}]}}}});
+        let row = opencode_model(&m);
+        assert_eq!(row["cache_write_price"], json!(0.125));
+        assert_eq!(row["price_tiers"][0]["cache_write_price"], json!(0.25));
+        assert_eq!(row["max_input"], json!(922000));
+    }
+
     #[test]
     fn opencode_cost_conversion() {
         let m: serde_json::Value = serde_json::from_str(r#"{"id":"grok","limit":{"context":500000,"output":8000},

server/src/checks.rs

@@ -0,0 +1,87 @@
+//! A check command per project folder (tests, build, lint) that runs after every turn that changed
+//! files. The result is a green/red badge on the turn; a failed run can be handed to the agent.
+
+use crate::app::App;
+use crate::types::{Event, Role, Session, now_ms};
+use anyhow::{Result, anyhow, bail};
+use std::process::Stdio;
+use std::sync::Arc;
+use std::time::Duration;
+
+const TIMEOUT: Duration = Duration::from_secs(10 * 60);
+const MAX_OUTPUT: usize = 12_000;
+
+/// Last `max` bytes of the output (failures show at the end).
+fn tail(s: &str, max: usize) -> String {
+    if s.len() <= max {
+        return s.to_string();
+    }
+    let mut start = s.len() - max;
+    while !s.is_char_boundary(start) {
+        start += 1;
+    }
+    format!("…\n{}", &s[start..])
+}
+
+fn command(app: &App, session: &Session, script: &str) -> Result<tokio::process::Command> {
+    let script = format!("exec 2>&1\n{script}");
+    let cwd = std::path::Path::new(&session.cwd);
+    if let Some(spec) = crate::sandbox::spec_for(app, session.owner_id.as_deref()) {
+        if !crate::sandbox::available() {
+            bail!("the sandbox (bubblewrap) is not available");
+        }
+        return Ok(crate::sandbox::command(&spec, cwd, "bash", &["-c", &script]));
+    }
+    let mut c = tokio::process::Command::new("bash");
+    c.arg("-c").arg(&script).current_dir(cwd).env("CODECRAFT", "1").env("CI", "1").env("GIT_TERMINAL_PROMPT", "0").env("PAGER", "cat");
+    Ok(c)
+}
+
+/// Run the project's check for the turn that ended with `message_id` and publish the result.
+pub async fn run(app: &Arc<App>, session: &Session, message_id: &str) -> Result<()> {
+    let (cmd, _) = app.store.project_check(&session.cwd)?.ok_or_else(|| anyhow!("no check command set for this project"))?;
+    let sid = session.id.clone();
+    let emit = |status: &str, code: Option<i32>, ms: u64, out: &str| {
+        let _ = app.store.set_turn_check(&sid, message_id, status, code, ms, out);
+        app.emit(Event::CheckResult { session_id: sid.clone(), message_id: message_id.into(), status: status.into(), exit_code: code, duration_ms: ms, output: out.into() });
+    };
+    emit("running", None, 0, "");
+    let started = now_ms();
+    let mut c = match command(app, session, &cmd) {
+        Ok(c) => c,
+        Err(e) => {
+            emit("failed", None, 0, &format!("{e:#}"));
+            return Ok(());
+        }
+    };
+    let res = tokio::time::timeout(TIMEOUT, c.stdin(Stdio::null()).kill_on_drop(true).output()).await;
+    let ms = (now_ms() - started).max(0) as u64;
+    match res {
+        Err(_) => emit("timeout", None, ms, &format!("Stopped after {} minutes.", TIMEOUT.as_secs() / 60)),
+        Ok(Err(e)) => emit("failed", None, ms, &format!("could not run the command: {e}")),
+        Ok(Ok(o)) => {
+            let mut text = String::from_utf8_lossy(&o.stdout).to_string();
+            text.push_str(&String::from_utf8_lossy(&o.stderr));
+            emit(if o.status.success() { "passed" } else { "failed" }, o.status.code(), ms, &tail(text.trim(), MAX_OUTPUT));
+        }
+    }
+    Ok(())
+}
+
+/// After a turn: run the check if the project has one and the turn changed files.
+pub fn spawn_after_turn(app: Arc<App>, session_id: String, turn_started: i64) {
+    tokio::spawn(async move {
+        let Ok(session) = app.session(&session_id) else { return };
+        if session.parent_id.is_some() {
+            return;
+        }
+        let Ok(Some((_, true))) = app.store.project_check(&session.cwd) else { return };
+        if app.store.checkpoints_since(&session_id, turn_started).map(|c| c.is_empty()).unwrap_or(true) {
+            return;
+        }
+        let Some(last) = app.store.messages(&session_id).ok().and_then(|m| m.into_iter().rev().find(|m| m.role == Role::Assistant)) else { return };
+        if let Err(e) = run(&app, &session, &last.id).await {
+            tracing::debug!("check failed to start: {e:#}");
+        }
+    });
+}

server/src/claude_code.rs

@@ -0,0 +1,883 @@
+//! Claude Code as an engine: a chat whose model is "claude-code/<alias>" is not run by our own
+//! agent loop but by the `claude` CLI (`-p`, stream-json). Its events become normal chat
+//! messages; its tool approvals (`can_use_tool`) go through our permission system, so cards,
+//! push actions, "allow for this project" and the sandbox work as for the native agent.
+//!
+//! Login is done in the web UI: `claude auth login` runs in a PTY, the sign-in URL is shown
+//! and the code the Anthropic page displays is pasted back (see the `login_*` functions).
+
+use crate::app::{App, PermissionReply};
+use crate::config::ModelConfig;
+use crate::permission::{Decision, Evaluator, ToolInfo, bash_prefix, is_dangerous, split_command};
+use crate::provider::{ChatRequest, Provider, StreamEvent};
+use crate::store::UsageRecord;
+use crate::types::{Event, Message, Part, Role, Session, Usage, new_id, now_ms};
+use anyhow::{Result, anyhow, bail};
+use async_trait::async_trait;
+use serde_json::{Value, json};
+use std::collections::HashMap;
+use std::path::{Path, PathBuf};
+use std::process::Stdio;
+use std::sync::{Arc, Mutex, OnceLock};
+use std::time::{Duration, Instant};
+use tokio::io::{AsyncBufReadExt, AsyncReadExt, AsyncWriteExt, BufReader};
+use tokio::sync::mpsc;
+use tokio_util::sync::CancellationToken;
+
+pub const PROVIDER: &str = "claude-code";
+
+/// The `claude` binary of the server user (outside the sandbox); None = not installed.
+/// Where updates from the web UI are installed (npm prefix in the persistent home); it is first in
+/// `binary()`'s search and is made readable inside the sandbox, so one update serves all users.
+fn managed_dir() -> Option<PathBuf> {
+    std::env::var_os("HOME").map(|h| PathBuf::from(h).join(".npm-global"))
+}
+
+fn managed_binary() -> Option<PathBuf> {
+    managed_dir().map(|d| d.join("bin/claude")).filter(|p| p.is_file())
+}
+
+pub fn binary() -> Option<PathBuf> {
+    if let Some(m) = managed_binary() {
+        return Some(m);
+    }
+    let mut dirs: Vec<PathBuf> = std::env::split_paths(&std::env::var_os("PATH").unwrap_or_default()).collect();
+    if let Some(h) = std::env::var_os("HOME") {
+        dirs.push(PathBuf::from(&h).join(".local/bin"));
+        dirs.push(PathBuf::from(&h).join(".npm-global/bin"));
+    }
+    dirs.into_iter().map(|d| d.join("claude")).find(|p| p.is_file())
+}
+
+/// Registered like a provider so the model picker, validation and statistics need no special cases;
+/// requests never reach it (the runner hands such chats to `run`).
+pub struct Marker;
+
+#[async_trait]
+impl Provider for Marker {
+    async fn stream(&self, _req: ChatRequest, _tx: mpsc::Sender<StreamEvent>, _cancel: CancellationToken) -> Result<()> {
+        bail!("this model runs through Claude Code and cannot be used for background tasks – set a small_model in the configuration")
+    }
+    async fn list_models(&self) -> Result<Vec<ModelConfig>> {
+        Ok(models())
+    }
+}
+
+pub fn models() -> Vec<ModelConfig> {
+    [("default", "Claude Code (default model)"), ("opus", "Claude Code · Opus"), ("sonnet", "Claude Code · Sonnet"), ("haiku", "Claude Code · Haiku")]
+        .into_iter()
+        .map(|(id, name)| ModelConfig { id: id.into(), name: Some(name.into()), vision: true, reasoning: true, ..Default::default() })
+        .collect()
+}
+
+pub fn is_claude_code(model_spec: &str) -> bool {
+    model_spec.starts_with("claude-code/")
+}
+
+/// A command running `claude` for this user: in the user's sandbox, or directly with a minimal
+/// environment (no server secrets; the CLI uses its own sign-in from HOME).
+fn command(app: &App, owner: Option<&str>, cwd: &Path, args: &[String]) -> Result<tokio::process::Command> {
+    let refs: Vec<&str> = args.iter().map(String::as_str).collect();
+    if let Some(spec) = crate::sandbox::spec_for(app, owner) {
+        if !crate::sandbox::available() {
+            bail!("Claude Code is disabled for this account: the sandbox (bubblewrap) is not available");
+        }
+        // An update installed from the web UI lives outside the image: mounted read-only, called by path.
+        if let (Some(bin), Some(dir)) = (managed_binary(), managed_dir()) {
+            let program = bin.display().to_string();
+            return Ok(crate::sandbox::command_with(&spec, cwd, &[dir.as_path()], &program, &refs));
+        }
+        return Ok(crate::sandbox::command(&spec, cwd, "claude", &refs));
+    }
+    let bin = binary().ok_or_else(|| anyhow!("Claude Code is not installed on the server (`claude` not found)"))?;
+    let mut c = tokio::process::Command::new(bin);
+    c.current_dir(cwd).env_clear();
+    for k in ["PATH", "HOME", "LANG", "USER", "SHELL"] {
+        if let Some(v) = std::env::var_os(k) {
+            c.env(k, v);
+        }
+    }
+    c.env("TERM", "xterm-256color").env("CODECRAFT", "1").args(args);
+    Ok(c)
+}
+
+// --- tool mapping -----------------------------------------------------------------------
+
+/// Claude Code tool → (our tool name, input with our key names), so the chat renders it like ours.
+fn map_tool(name: &str, input: &Value) -> (String, Value) {
+    let mut v = input.clone();
+    let rename = |v: &mut Value, from: &str, to: &str| {
+        if let Some(x) = v.get(from).cloned() {
+            v[to] = x;
+            if let Some(o) = v.as_object_mut() {
+                o.remove(from);
+            }
+        }
+    };
+    let ours = match name {
+        "Bash" => "bash",
+        "Read" => "read",
+        "Write" => "write",
+        "Edit" | "MultiEdit" | "NotebookEdit" => "edit",
+        "Glob" => "glob",
+        "Grep" => "grep",
+        "WebFetch" => "web_fetch",
+        "WebSearch" => "web_search",
+        "Task" | "Agent" => "task",
+        other => return (other.to_lowercase(), v),
+    };
+    rename(&mut v, "file_path", "path");
+    rename(&mut v, "notebook_path", "path");
+    (ours.to_string(), v)
+}
+
+struct CcTool {
+    name: String,
+}
+
+impl ToolInfo for CcTool {
+    fn name(&self) -> &str {
+        &self.name
+    }
+    fn read_only(&self) -> bool {
+        matches!(self.name.as_str(), "read" | "glob" | "grep" | "web_fetch" | "web_search" | "task" | "todowrite" | "list")
+    }
+    fn is_edit(&self) -> bool {
+        matches!(self.name.as_str(), "write" | "edit")
+    }
+}
+
+fn unified(path: &str, old: &str, new: &str) -> String {
+    similar::TextDiff::from_lines(old, new).unified_diff().context_radius(3).header(path, path).to_string()
+}
+
+/// Diff of a pending write/edit (shown on the approval card and kept as the result's diff).
+fn preview_diff(name: &str, input: &Value) -> Option<String> {
+    let path = input["path"].as_str()?;
+    let old = std::fs::read_to_string(path).unwrap_or_default();
+    match name {
+        "write" => Some(unified(path, &old, input["content"].as_str()?)),
+        "edit" => {
+            let (from, to) = (input["old_string"].as_str()?, input["new_string"].as_str()?);
+            let new = if input["replace_all"].as_bool() == Some(true) { old.replace(from, to) } else { old.replacen(from, to, 1) };
+            Some(unified(path, &old, &new))
+        }
+        _ => None,
+    }
+}
+
+fn title_of(name: &str, input: &Value, claude_input: &Value) -> String {
+    match name {
+        "bash" => input["description"].as_str().filter(|d| !d.is_empty()).map(String::from).unwrap_or_else(|| input["command"].as_str().unwrap_or("").chars().take(120).collect()),
+        "write" | "edit" | "read" => input["path"].as_str().unwrap_or("").to_string(),
+        _ => claude_input["description"].as_str().map(String::from).unwrap_or_else(|| name.to_string()),
+    }
+}
+
+/// Ask our permission system whether a tool call of Claude Code may run: (allow, message for a rejection).
+async fn decide(app: &Arc<App>, session: &Session, claude_name: &str, claude_input: &Value, cancel: &CancellationToken) -> (bool, Option<String>) {
+    let (name, input) = map_tool(claude_name, claude_input);
+    if claude_name == "AskUserQuestion" {
+        return (false, Some("Questions to the user are not available in this mode – decide yourself or state your assumption.".into()));
+    }
+    let info = CcTool { name: name.clone() };
+    let cfg = app.config();
+    let root = app.root_session_id(&session.id);
+    let (mut decision, approved) = app.with_runtime(&root, |r| {
+        (Evaluator { cfg: &cfg.permissions, mode: &session.permission_mode, approved: &r.approved }.evaluate(&info, &input), r.approved.clone())
+    });
+    if decision == Decision::Ask {
+        let project = app.store.project_approvals(&session.cwd).unwrap_or_default();
+        if !project.is_empty() {
+            let mut all = approved;
+            all.extend(project);
+            decision = Evaluator { cfg: &cfg.permissions, mode: &session.permission_mode, approved: &all }.evaluate(&info, &input);
+        }
+    }
+    match decision {
+        Decision::Deny => return (false, Some("Denied by the permission rules in the configuration.".into())),
+        Decision::Allow => {}
+        Decision::Ask => {
+            let diff = preview_diff(&name, &input);
+            let (reply, message, _) = app.request_permission(&session.id, &name, title_of(&name, &input, claude_input), input.clone(), diff, cancel.clone()).await;
+            match reply {
+                PermissionReply::Reject => {
+                    let mut text = "The user rejected this tool call.".to_string();
+                    if let Some(m) = message.filter(|m| !m.trim().is_empty()) {
+                        text.push_str(&format!(" User feedback: {m}"));
+                    }
+                    return (false, Some(text));
+                }
+                PermissionReply::Always | PermissionReply::Project => {
+                    let mut keys: Vec<(String, bool)> = Vec::new();
+                    if name == "bash" {
+                        for part in split_command(input["command"].as_str().unwrap_or("")).unwrap_or_default() {
+                            keys.push((format!("bash:{}", bash_prefix(&part)), !is_dangerous(&part)));
+                        }
+                    } else {
+                        keys.push((name.clone(), true));
+                    }
+                    app.with_runtime(&root, |r| r.approved.extend(keys.iter().map(|(k, _)| k.clone())));
+                    if reply == PermissionReply::Project {
+                        for (k, ok) in &keys {
+                            if *ok {
+                                let _ = app.store.add_project_approval(&session.cwd, k);
+                            }
+                        }
+                    }
+                }
+                PermissionReply::Once => {}
+            }
+        }
+    }
+    // The state before the agent's change (turn changes, rewind).
+    if matches!(name.as_str(), "write" | "edit") {
+        if let Some(path) = input["path"].as_str() {
+            let before = std::fs::read(path).ok();
+            let _ = app.store.add_checkpoint(&session.id, path, before.as_deref());
+        }
+    }
+    (true, None)
+}
+
+// --- the turn ---------------------------------------------------------------------------
+
+struct Cur {
+    id: String,
+    api_id: String,
+    parts: Vec<Part>,
+    usage: Usage,
+    model: Option<String>,
+    started: i64,
+}
+
+fn tokens(u: &Value) -> Usage {
+    Usage {
+        input_tokens: u["input_tokens"].as_u64().unwrap_or(0),
+        output_tokens: u["output_tokens"].as_u64().unwrap_or(0),
+        cache_read_tokens: u["cache_read_input_tokens"].as_u64().unwrap_or(0),
+        cache_write_tokens: u["cache_creation_input_tokens"].as_u64().unwrap_or(0),
+        cost: None,
+        allowance: None,
+    }
+}
+
+fn finalize(app: &App, session_id: &str, cur: &mut Option<Cur>, model_id: &str) {
+    let Some(c) = cur.take() else { return };
+    if c.parts.is_empty() {
+        return;
+    }
+    let mut m = Message::new(Role::Assistant, c.parts);
+    m.id = c.id;
+    m.created_at = c.started;
+    m.model = Some(format!("{PROVIDER}/{}", c.model.as_deref().unwrap_or(model_id)));
+    m.usage = Some(c.usage.clone());
+    if app.store.add_message(session_id, &m).is_ok() {
+        app.emit(Event::MessageAdded { session_id: session_id.into(), message: m });
+    }
+}
+
+/// Text of a tool result: a string, or a list of blocks.
+fn result_text(content: &Value) -> String {
+    match content {
+        Value::String(s) => s.clone(),
+        Value::Array(a) => a.iter().filter_map(|b| b["text"].as_str()).collect::<Vec<_>>().join("\n"),
+        other => other.to_string(),
+    }
+}
+
+/// Images of the prompt as files the CLI can read (it has no inline image input in this mode).
+fn save_images(cwd: &str, parts: &[Part]) -> Vec<String> {
+    use base64::Engine;
+    let dir = Path::new(cwd).join(".codecraft/uploads");
+    let mut out = Vec::new();
+    for (i, p) in parts.iter().enumerate() {
+        let Part::Image { image } = p else { continue };
+        let Ok(bytes) = base64::engine::general_purpose::STANDARD.decode(&image.data) else { continue };
+        let ext = image.media_type.split('/').nth(1).unwrap_or("png").split('+').next().unwrap_or("png");
+        let path = dir.join(format!("chat-{}-{i}.{ext}", now_ms()));
+        if std::fs::create_dir_all(&dir).is_ok() {
+            let _ = std::fs::write(dir.join(".gitignore"), "*\n");
+            if std::fs::write(&path, bytes).is_ok() {
+                out.push(path.display().to_string());
+            }
+        }
+    }
+    out
+}
+
+/// Run one turn of a "claude-code/…" chat. Returns the final text.
+pub async fn run(app: Arc<App>, session_id: &str, cancel: CancellationToken) -> Result<String> {
+    let session = app.session(session_id)?;
+    let owner = session.owner_id.clone();
+    let model_id = session.model.strip_prefix("claude-code/").unwrap_or("default").to_string();
+    let history = crate::runner::active_history(app.store.messages(session_id)?);
+    let Some(last_user) = history.iter().rposition(|m| m.role == Role::User && m.parts.iter().any(|p| matches!(p, Part::Text { .. } | Part::Image { .. }))) else {
+        bail!("nothing to do: no user message");
+    };
+    let mut prompt = history[last_user].parts.iter().filter_map(|p| if let Part::Text { text } = p { Some(text.as_str()) } else { None }).collect::<Vec<_>>().join("\n\n");
+    let images = save_images(&session.cwd, &history[last_user].parts);
+    if !images.is_empty() {
+        prompt.push_str(&format!("\n\nAttached images (read them with the Read tool):\n{}", images.iter().map(|p| format!("- {p}")).collect::<Vec<_>>().join("\n")));
+    }
+
+    // Continue the CLI's own conversation; without one (new chat, fork, model switch) give it the history as context.
+    let key = format!("claude_sid:{session_id}");
+    let resume: Option<String> = owner.as_deref().and_then(|u| app.store.user_setting::<Option<String>>(u, &key).ok().flatten());
+    if resume.is_none() && last_user > 0 {
+        let earlier = crate::runner::transcript_of(&history[..last_user]);
+        prompt = format!("<previous-conversation>\n{}\n</previous-conversation>\n\n{prompt}", crate::runner::fit(&earlier, 20_000));
+    }
+
+    let mode = match (session.agent.as_str(), session.permission_mode.as_str()) {
+        ("plan", _) => "plan",
+        _ => "default",
+    };
+    let mut args: Vec<String> = ["-p", "--input-format", "stream-json", "--output-format", "stream-json", "--verbose", "--include-partial-messages", "--permission-prompt-tool", "stdio", "--permission-mode", mode]
+        .iter()
+        .map(|s| s.to_string())
+        .collect();
+    if model_id != "default" {
+        args.extend(["--model".into(), model_id.clone()]);
+    }
+    if let Some(r) = &resume {
+        args.extend(["--resume".into(), r.clone()]);
+    }
+    if !session.instructions.trim().is_empty() {
+        args.extend(["--append-system-prompt".into(), session.instructions.trim().to_string()]);
+    }
+
+    let mut cmd = command(&app, owner.as_deref(), Path::new(&session.cwd), &args)?;
+    let mut child = cmd.stdin(Stdio::piped()).stdout(Stdio::piped()).stderr(Stdio::piped()).kill_on_drop(true).spawn().map_err(|e| anyhow!("could not start Claude Code: {e}"))?;
+    let mut stdin = child.stdin.take().ok_or_else(|| anyhow!("no stdin"))?;
+    let stderr = child.stderr.take().ok_or_else(|| anyhow!("no stderr"))?;
+    let stderr_tail = Arc::new(Mutex::new(String::new()));
+    {
+        let tail = stderr_tail.clone();
+        tokio::spawn(async move {
+            let mut lines = BufReader::new(stderr).lines();
+            while let Ok(Some(l)) = lines.next_line().await {
+                let mut t = tail.lock().unwrap();
+                t.push_str(&l);
+                t.push('\n');
+                if t.len() > 4000 {
+                    let cut = t.len() - 3000;
+                    let cut = (cut..t.len()).find(|i| t.is_char_boundary(*i)).unwrap_or(t.len());
+                    t.drain(..cut);
+                }
+            }
+        });
+    }
+    let first = json!({"type": "user", "message": {"role": "user", "content": prompt}});
+    stdin.write_all(format!("{first}\n").as_bytes()).await?;
+    let mut lines = BufReader::new(child.stdout.take().ok_or_else(|| anyhow!("no stdout"))?).lines();
+
+    let started = now_ms();
+    let mut cur: Option<Cur> = None;
+    let mut calls: HashMap<String, String> = HashMap::new();
+    let mut diffs: HashMap<String, String> = HashMap::new();
+    let mut final_text = String::new();
+    let mut got_result = false;
+    let mut failure: Option<String> = None;
+
+    loop {
+        let line = tokio::select! {
+            l = lines.next_line() => l?,
+            _ = cancel.cancelled() => { let _ = child.start_kill(); break; }
+        };
+        let Some(line) = line else { break };
+        let Ok(ev) = serde_json::from_str::<Value>(&line) else { continue };
+        let sub = ev["parent_tool_use_id"].as_str().is_some();
+        match ev["type"].as_str().unwrap_or("") {
+            "system" if ev["subtype"] == "init" => {
+                if let (Some(sid), Some(u)) = (ev["session_id"].as_str(), owner.as_deref()) {
+                    let _ = app.store.set_user_setting(u, &key, &Some(sid.to_string()));
+                }
+            }
+            "stream_event" if !sub => {
+                let e = &ev["event"];
+                match e["type"].as_str().unwrap_or("") {
+                    "message_start" => {
+                        finalize(&app, session_id, &mut cur, &model_id);
+                        let u = tokens(&e["message"]["usage"]);
+                        let id = new_id();
+                        app.emit(Event::StepStarted { session_id: session_id.into(), message_id: id.clone(), started_at: now_ms(), prompt_tokens: u.input_tokens + u.cache_read_tokens + u.cache_write_tokens, estimated: false });
+                        cur = Some(Cur { id, api_id: e["message"]["id"].as_str().unwrap_or("").into(), parts: vec![], usage: u, model: e["message"]["model"].as_str().map(String::from), started: now_ms() });
+                    }
+                    "content_block_delta" => {
+                        if let Some(c) = &cur {
+                            match e["delta"]["type"].as_str().unwrap_or("") {
+                                "text_delta" => app.emit(Event::TextDelta { session_id: session_id.into(), message_id: c.id.clone(), text: e["delta"]["text"].as_str().unwrap_or("").into() }),
+                                "thinking_delta" => app.emit(Event::ReasoningDelta { session_id: session_id.into(), message_id: c.id.clone(), text: e["delta"]["thinking"].as_str().unwrap_or("").into() }),
+                                _ => {}
+                            }
+                        }
+                    }
+                    "message_delta" => {
+                        if let Some(c) = &mut cur {
+                            if let Some(o) = e["usage"]["output_tokens"].as_u64() {
+                                c.usage.output_tokens = o;
+                            }
+                        }
+                    }
+                    "message_stop" => finalize(&app, session_id, &mut cur, &model_id),
+                    _ => {}
+                }
+            }
+            "assistant" if !sub => {
+                let api_id = ev["message"]["id"].as_str().unwrap_or("").to_string();
+                if cur.as_ref().is_none_or(|c| c.api_id != api_id) {
+                    finalize(&app, session_id, &mut cur, &model_id);
+                    cur = Some(Cur { id: new_id(), api_id, parts: vec![], usage: tokens(&ev["message"]["usage"]), model: ev["message"]["model"].as_str().map(String::from), started: now_ms() });
+                }
+                let c = cur.as_mut().unwrap();
+                for b in ev["message"]["content"].as_array().cloned().unwrap_or_default() {
+                    let part = match b["type"].as_str().unwrap_or("") {
+                        "text" => Part::Text { text: b["text"].as_str().unwrap_or("").to_string() },
+                        "thinking" => Part::Reasoning { text: b["thinking"].as_str().unwrap_or("").to_string(), signature: b["signature"].as_str().map(String::from) },
+                        "tool_use" => {
+                            let (name, input) = map_tool(b["name"].as_str().unwrap_or(""), &b["input"]);
+                            let id = b["id"].as_str().unwrap_or("").to_string();
+                            calls.insert(id.clone(), name.clone());
+                            Part::ToolCall { id, name, input, extra: None }
+                        }
+                        _ => continue,
+                    };
+                    if !c.parts.contains(&part) && !matches!(&part, Part::ToolCall { id, .. } if c.parts.iter().any(|p| matches!(p, Part::ToolCall { id: i, .. } if i == id))) {
+                        c.parts.push(part);
+                    }
+                }
+            }
+            "user" if !sub => {
+                finalize(&app, session_id, &mut cur, &model_id);
+                let mut parts = Vec::new();
+                for b in ev["message"]["content"].as_array().cloned().unwrap_or_default() {
+                    if b["type"] != "tool_result" {
+                        continue;
+                    }
+                    let id = b["tool_use_id"].as_str().unwrap_or("").to_string();
+                    let is_error = b["is_error"].as_bool().unwrap_or(false);
+                    let meta = if is_error { None } else { diffs.remove(&id).map(|d| json!({"diff": d})) };
+                    parts.push(Part::ToolResult { name: calls.get(&id).cloned().unwrap_or_default(), call_id: id, content: result_text(&b["content"]), images: vec![], is_error, meta });
+                }
+                if !parts.is_empty() {
+                    let m = Message::new(Role::User, parts);
+                    if app.store.add_message(session_id, &m).is_ok() {
+                        app.emit(Event::MessageAdded { session_id: session_id.into(), message: m });
+                    }
+                }
+            }
+            "control_request" if ev["request"]["subtype"] == "can_use_tool" => {
+                finalize(&app, session_id, &mut cur, &model_id);
+                let req = &ev["request"];
+                let (allow, message) = decide(&app, &session, req["tool_name"].as_str().unwrap_or(""), &req["input"], &cancel).await;
+                if allow {
+                    let (name, input) = map_tool(req["tool_name"].as_str().unwrap_or(""), &req["input"]);
+                    if let (Some(d), Some(id)) = (preview_diff(&name, &input), req["tool_use_id"].as_str()) {
+                        diffs.insert(id.to_string(), d);
+                    }
+                }
+                let response = if allow { json!({"behavior": "allow", "updatedInput": req["input"]}) } else { json!({"behavior": "deny", "message": message.unwrap_or_default()}) };
+                let reply = json!({"type": "control_response", "response": {"subtype": "success", "request_id": ev["request_id"], "response": response}});
+                if stdin.write_all(format!("{reply}\n").as_bytes()).await.is_err() {
+                    break;
+                }
+            }
+            "result" => {
+                finalize(&app, session_id, &mut cur, &model_id);
+                got_result = true;
+                final_text = ev["result"].as_str().unwrap_or("").to_string();
+                if ev["is_error"].as_bool().unwrap_or(false) || ev["subtype"].as_str().is_some_and(|s| s != "success") {
+                    failure = Some(if final_text.trim().is_empty() { format!("Claude Code stopped: {}", ev["subtype"].as_str().unwrap_or("error")) } else { final_text.clone() });
+                }
+                let u = tokens(&ev["usage"]);
+                let (p, m) = (PROVIDER, model_id.as_str());
+                let _ = app.store.add_usage(&UsageRecord {
+                    ts: now_ms(),
+                    session_id: session_id.into(),
+                    root_session_id: app.root_session_id(session_id),
+                    provider: p.into(),
+                    model: m.into(),
+                    agent: "claude-code".into(),
+                    input_tokens: u.input_tokens,
+                    output_tokens: u.output_tokens,
+                    cache_read_tokens: u.cache_read_tokens,
+                    cache_write_tokens: u.cache_write_tokens,
+                    ttft_ms: 0,
+                    duration_ms: (now_ms() - started).max(0) as u64,
+                    cost: ev["total_cost_usd"].as_f64().unwrap_or(0.0),
+                    error: failure.is_some(),
+                    user_id: None,
+                    allowance: None,
+                });
+                break;
+            }
+            _ => {}
+        }
+    }
+    finalize(&app, session_id, &mut cur, &model_id);
+    drop(stdin);
+    let _ = tokio::time::timeout(Duration::from_secs(5), child.wait()).await;
+    let _ = child.start_kill();
+    if cancel.is_cancelled() {
+        return Ok(final_text);
+    }
+    if let Some(f) = failure {
+        // An expired sign-in is the common case: say where to fix it.
+        if f.to_lowercase().contains("login") || f.to_lowercase().contains("authenticat") || f.contains("401") {
+            bail!("Claude Code is not signed in (or the sign-in expired): Settings → Claude Code → Sign in. ({f})");
+        }
+        bail!("{f}");
+    }
+    if !got_result {
+        let tail = stderr_tail.lock().unwrap().trim().to_string();
+        if tail.to_lowercase().contains("login") || tail.to_lowercase().contains("authenticat") {
+            bail!("Claude Code is not signed in: Settings → Claude Code → Sign in.");
+        }
+        bail!("Claude Code ended without an answer{}", if tail.is_empty() { String::new() } else { format!(": {tail}") });
+    }
+    Ok(final_text)
+}
+
+// --- sign-in from the web UI ----------------------------------------------------------------
+
+/// `claude auth login` running in a PTY for one user: its output (with the sign-in URL) and stdin.
+struct Login {
+    writer: tokio::sync::Mutex<pty_process::OwnedWritePty>,
+    out: Arc<Mutex<String>>,
+    child: Mutex<Option<tokio::process::Child>>,
+    exited: Arc<Mutex<Option<i32>>>,
+    started: Instant,
+}
+
+static LOGINS: OnceLock<Mutex<HashMap<String, Arc<Login>>>> = OnceLock::new();
+
+fn logins() -> &'static Mutex<HashMap<String, Arc<Login>>> {
+    LOGINS.get_or_init(Default::default)
+}
+
+/// Terminal escape sequences removed.
+fn strip_ansi(s: &str) -> String {
+    let mut out = String::new();
+    let mut chars = s.chars().peekable();
+    while let Some(c) = chars.next() {
+        if c == '\x1b' {
+            match chars.peek() {
+                Some('[') => {
+                    chars.next();
+                    for n in chars.by_ref() {
+                        if ('@'..='~').contains(&n) {
+                            break;
+                        }
+                    }
+                }
+                Some(']') => {
+                    chars.next();
+                    for n in chars.by_ref() {
+                        if n == '\x07' {
+                            break;
+                        }
+                    }
+                }
+                _ => {
+                    chars.next();
+                }
+            }
+        } else if c != '\r' {
+            out.push(c);
+        }
+    }
+    out
+}
+
+fn find_url(text: &str) -> Option<String> {
+    let t = strip_ansi(text);
+    let start = t.find("https://")?;
+    let url: String = t[start..].chars().take_while(|c| !c.is_whitespace()).collect();
+    // Complete once whitespace follows it (the output arrives in chunks); the wide PTY avoids wrapping.
+    let complete = t.len() > start + url.len();
+    (complete && (url.contains("oauth") || url.contains("authorize"))).then_some(url)
+}
+
+fn stop_login(user_id: &str) {
+    if let Some(l) = logins().lock().unwrap().remove(user_id) {
+        if let Some(mut c) = l.child.lock().unwrap().take() {
+            let _ = c.start_kill();
+        }
+    }
+}
+
+/// Start `claude auth login` for the user and return the sign-in URL to open in any browser.
+/// `console` = Anthropic Console (API billing) instead of the Claude subscription.
+pub async fn login_start(app: &Arc<App>, user_id: &str, console: bool) -> Result<String> {
+    stop_login(user_id);
+    let (pty, pts) = pty_process::open()?;
+    pty.resize(pty_process::Size::new(24, 500))?;
+    let mode = if console { "--console" } else { "--claudeai" };
+    let cwd = app.user_roots(Some(user_id)).first().cloned().unwrap_or_else(|| PathBuf::from("/"));
+    let cmd = match crate::sandbox::spec_for(app, Some(user_id)) {
+        Some(spec) => {
+            if !crate::sandbox::available() {
+                bail!("the sandbox (bubblewrap) is not available");
+            }
+            pty_process::Command::new("bwrap").env_clear().args(crate::sandbox::bwrap_args(&spec, &cwd, &[], false, "env", &["BROWSER=/bin/false", "claude", "auth", "login", mode]))
+        }
+        None => {
+            let bin = binary().ok_or_else(|| anyhow!("Claude Code is not installed on the server (`claude` not found)"))?;
+            let mut c = pty_process::Command::new(bin).args(["auth", "login", mode]).current_dir(&cwd).env_clear().env("BROWSER", "/bin/false").env("TERM", "xterm-256color");
+            for k in ["PATH", "HOME", "LANG", "USER"] {
+                if let Some(v) = std::env::var_os(k) {
+                    c = c.env(k, v);
+                }
+            }
+            c
+        }
+    };
+    let child = cmd.kill_on_drop(true).spawn(pts).map_err(|e| anyhow!("could not start `claude auth login`: {e}"))?;
+    let (mut reader, writer) = pty.into_split();
+    let login = Arc::new(Login { writer: tokio::sync::Mutex::new(writer), out: Arc::default(), child: Mutex::new(Some(child)), exited: Arc::default(), started: Instant::now() });
+    {
+        let (out, exited, l) = (login.out.clone(), login.exited.clone(), login.clone());
+        tokio::spawn(async move {
+            let mut buf = vec![0u8; 8192];
+            loop {
+                match reader.read(&mut buf).await {
+                    Ok(0) | Err(_) => break,
+                    Ok(n) => {
+                        let mut o = out.lock().unwrap();
+                        o.push_str(&String::from_utf8_lossy(&buf[..n]));
+                        if o.len() > 64_000 {
+                            let cut = o.len() - 32_000;
+                            let cut = (cut..o.len()).find(|i| o.is_char_boundary(*i)).unwrap_or(o.len());
+                            o.drain(..cut);
+                        }
+                    }
+                }
+            }
+            let code = l.child.lock().unwrap().as_mut().and_then(|c| c.try_wait().ok().flatten()).and_then(|s| s.code()).unwrap_or(0);
+            *exited.lock().unwrap() = Some(code);
+        });
+    }
+    logins().lock().unwrap().insert(user_id.to_string(), login.clone());
+    // The URL shows up within a few seconds.
+    for _ in 0..60 {
+        if let Some(u) = find_url(&login.out.lock().unwrap()) {
+            return Ok(u);
+        }
+        if login.exited.lock().unwrap().is_some() {
+            break;
+        }
+        tokio::time::sleep(Duration::from_millis(250)).await;
+    }
+    let out = strip_ansi(&login.out.lock().unwrap());
+    stop_login(user_id);
+    bail!("no sign-in URL received from `claude auth login`{}", if out.trim().is_empty() { String::new() } else { format!(": {}", out.trim().chars().take(300).collect::<String>()) })
+}
+
+/// Hand the code from the sign-in page to the waiting CLI; true once it reports success.
+pub async fn login_code(user_id: &str, code: &str) -> Result<bool> {
+    let login = logins().lock().unwrap().get(user_id).cloned().ok_or_else(|| anyhow!("no sign-in in progress – start it again"))?;
+    if login.started.elapsed() > Duration::from_secs(15 * 60) {
+        stop_login(user_id);
+        bail!("the sign-in expired – start it again");
+    }
+    let code: String = code.chars().filter(|c| !c.is_control()).collect::<String>().trim().to_string();
+    if code.is_empty() || code.len() > 2000 {
+        bail!("empty or invalid code");
+    }
+    login.writer.lock().await.write_all(format!("{code}\r").as_bytes()).await?;
+    for _ in 0..80 {
+        if login.exited.lock().unwrap().is_some() {
+            break;
+        }
+        tokio::time::sleep(Duration::from_millis(250)).await;
+    }
+    let exited = *login.exited.lock().unwrap();
+    let out = strip_ansi(&login.out.lock().unwrap());
+    stop_login(user_id);
+    match exited {
+        Some(0) => Ok(true),
+        _ => bail!("sign-in failed: {}", out.lines().rev().find(|l| !l.trim().is_empty()).unwrap_or("no answer from the CLI").trim()),
+    }
+}
+
+pub fn login_cancel(user_id: &str) {
+    stop_login(user_id);
+}
+
+/// `claude auth status` for the user (their sandbox home or the server's): the CLI's JSON.
+pub async fn status(app: &App, user_id: &str) -> Value {
+    let mut v = status_inner(app, user_id).await;
+    if v["installed"] == true {
+        if let (Some(o), Some(i)) = (v.as_object_mut(), version_info(false).await.as_object()) {
+            o.extend(i.clone());
+        }
+    }
+    v
+}
+
+async fn status_inner(app: &App, user_id: &str) -> Value {
+    let Some(_) = binary().or_else(|| crate::sandbox::spec_for(app, Some(user_id)).map(|_| PathBuf::from("claude"))) else {
+        return json!({"installed": false});
+    };
+    let cwd = app.user_roots(Some(user_id)).first().cloned().unwrap_or_else(|| PathBuf::from("/"));
+    let mut cmd = match command(app, Some(user_id), &cwd, &["auth".into(), "status".into(), "--json".into()]) {
+        Ok(c) => c,
+        Err(e) => return json!({"installed": true, "error": format!("{e:#}")}),
+    };
+    let out = tokio::time::timeout(Duration::from_secs(15), cmd.stdin(Stdio::null()).kill_on_drop(true).output()).await;
+    let in_progress = logins().lock().unwrap().contains_key(user_id);
+    match out {
+        Ok(Ok(o)) => {
+            let v: Value = serde_json::from_slice(&o.stdout).unwrap_or(Value::Null);
+            json!({
+                "installed": true,
+                "logged_in": v["loggedIn"].as_bool().unwrap_or(false),
+                "method": v["authMethod"], "email": v["email"], "org": v["orgName"], "expires": v["loginExpiresAt"],
+                "login_in_progress": in_progress,
+            })
+        }
+        Ok(Err(e)) => json!({"installed": false, "error": e.to_string()}),
+        Err(_) => json!({"installed": true, "error": "timeout", "login_in_progress": in_progress}),
+    }
+}
+
+pub async fn logout(app: &App, user_id: &str) -> Result<()> {
+    let cwd = app.user_roots(Some(user_id)).first().cloned().unwrap_or_else(|| PathBuf::from("/"));
+    let mut cmd = command(app, Some(user_id), &cwd, &["auth".into(), "logout".into()])?;
+    let _ = tokio::time::timeout(Duration::from_secs(15), cmd.stdin(Stdio::null()).kill_on_drop(true).output()).await;
+    Ok(())
+}
+
+// --- version and update -------------------------------------------------------------------------
+
+/// "2.1.325" or "2.1.325 (Claude Code)" → [2, 1, 325].
+fn version_key(v: &str) -> Vec<u64> {
+    v.split_whitespace().next().unwrap_or("").trim_start_matches('v').split('.').map(|p| p.parse().unwrap_or(0)).collect()
+}
+
+fn newer_version(latest: &str, current: &str) -> bool {
+    version_key(latest) > version_key(current)
+}
+
+/// Version of the installed CLI (what `claude --version` prints).
+async fn installed_version() -> Option<String> {
+    let bin = binary()?;
+    let out = tokio::time::timeout(Duration::from_secs(10), tokio::process::Command::new(bin).arg("--version").stdin(Stdio::null()).kill_on_drop(true).output()).await.ok()?.ok()?;
+    let text = String::from_utf8_lossy(&out.stdout);
+    let v = text.split_whitespace().next()?.to_string();
+    (!v.is_empty()).then_some(v)
+}
+
+static LATEST: OnceLock<Mutex<Option<(Instant, String)>>> = OnceLock::new();
+
+/// Latest release on npm (cached for 15 minutes; `force` asks again).
+async fn latest_version(force: bool) -> Option<String> {
+    let cache = LATEST.get_or_init(Default::default);
+    if !force {
+        if let Some((t, v)) = cache.lock().unwrap().as_ref() {
+            if t.elapsed() < Duration::from_secs(15 * 60) {
+                return Some(v.clone());
+            }
+        }
+    }
+    let v: Value = crate::provider::http_client().get("https://registry.npmjs.org/@anthropic-ai/claude-code/latest").timeout(Duration::from_secs(10)).send().await.ok()?.json().await.ok()?;
+    let version = v["version"].as_str()?.to_string();
+    *cache.lock().unwrap() = Some((Instant::now(), version.clone()));
+    Some(version)
+}
+
+/// Ask the registry for the latest version now (the "check" button).
+pub async fn refresh_latest() {
+    let _ = latest_version(true).await;
+}
+
+/// {version, latest, update_available} of the CLI on the server.
+pub async fn version_info(force: bool) -> Value {
+    let (current, latest) = tokio::join!(installed_version(), latest_version(force));
+    let update = match (&current, &latest) {
+        (Some(c), Some(l)) => newer_version(l, c),
+        _ => false,
+    };
+    json!({"version": current, "latest": latest, "update_available": update})
+}
+
+static UPDATING: std::sync::atomic::AtomicBool = std::sync::atomic::AtomicBool::new(false);
+
+/// Install the latest version: a native install updates itself (`claude update`), otherwise npm installs
+/// into the persistent home (`~/.npm-global`, ahead of the image's copy). Returns the tool output.
+pub async fn update() -> Result<String> {
+    use std::sync::atomic::Ordering;
+    if UPDATING.swap(true, Ordering::SeqCst) {
+        bail!("an update is already running");
+    }
+    struct Reset;
+    impl Drop for Reset {
+        fn drop(&mut self) {
+            UPDATING.store(false, std::sync::atomic::Ordering::SeqCst);
+        }
+    }
+    let _reset = Reset;
+    let bin = binary().ok_or_else(|| anyhow!("Claude Code is not installed on the server"))?;
+    let native = std::fs::canonicalize(&bin).is_ok_and(|p| p.to_string_lossy().contains("/.local/share/claude/"));
+    let mut cmd = if native {
+        let mut c = tokio::process::Command::new(&bin);
+        c.arg("update");
+        c
+    } else {
+        let prefix = managed_dir().ok_or_else(|| anyhow!("no HOME"))?;
+        let mut c = tokio::process::Command::new("npm");
+        c.args(["install", "-g", "--no-audit", "--no-fund", "@anthropic-ai/claude-code@latest"]).env("NPM_CONFIG_PREFIX", prefix);
+        c
+    };
+    cmd.stdin(Stdio::null()).kill_on_drop(true);
+    for k in ["PATH", "HOME", "LANG", "USER"] {
+        if let Some(v) = std::env::var_os(k) {
+            cmd.env(k, v);
+        }
+    }
+    let out = tokio::time::timeout(Duration::from_secs(300), cmd.output()).await.map_err(|_| anyhow!("the update timed out after 5 minutes"))?.map_err(|e| anyhow!("could not run the updater: {e}"))?;
+    let mut text = String::from_utf8_lossy(&out.stdout).to_string();
+    text.push_str(&String::from_utf8_lossy(&out.stderr));
+    let tail: String = { let t = text.trim(); t.chars().rev().take(1500).collect::<Vec<_>>().into_iter().rev().collect() };
+    if !out.status.success() {
+        bail!("the update failed: {tail}");
+    }
+    // Ask the registry again next time.
+    if let Some(c) = LATEST.get() {
+        *c.lock().unwrap() = None;
+    }
+    Ok(tail)
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn finds_the_login_url_only_when_complete() {
+        let partial = "Opening browser…\r\nIf the browser didn't open, visit: https://claude.com/cai/oauth/authorize?code=true&cli";
+        assert_eq!(find_url(partial), None);
+        let full = format!("{partial}ent_id=1&state=x\r\nPaste code here if prompted > ");
+        assert_eq!(find_url(&full).as_deref(), Some("https://claude.com/cai/oauth/authorize?code=true&client_id=1&state=x"));
+        assert_eq!(strip_ansi("\x1b[2Khello\x1b[0m\r\n"), "hello\n");
+    }
+
+    #[test]
+    fn compares_cli_versions() {
+        assert!(newer_version("2.1.325", "2.1.311"));
+        assert!(newer_version("2.2.0", "2.1.999"));
+        assert!(!newer_version("2.1.325", "2.1.325 (Claude Code)"));
+        assert!(!newer_version("2.1.9", "2.1.10"));
+    }
+
+    #[test]
+    fn maps_claude_tools_to_ours() {
+        let (n, i) = map_tool("Write", &json!({"file_path": "/a/b.txt", "content": "x"}));
+        assert_eq!((n.as_str(), i["path"].as_str()), ("write", Some("/a/b.txt")));
+        assert!(i.get("file_path").is_none());
+        assert_eq!(map_tool("Bash", &json!({"command": "ls"})).0, "bash");
+        assert_eq!(map_tool("mcp__x__y", &json!({})).0, "mcp__x__y");
+        assert!(CcTool { name: "edit".into() }.is_edit() && CcTool { name: "read".into() }.read_only());
+    }
+}

server/src/config.rs

@@ -177,6 +177,19 @@ pub struct ImagesConfig {
     /// Optional fal.ai Admin key to query the account balance.
     #[serde(default, skip_serializing_if = "String::is_empty")]
     pub admin_key: String,
+    /// fal.ai model for 3D models from images (generate_3d).
+    #[serde(default = "default_model_3d")]
+    pub model_3d: String,
+    /// fal.ai model for 3D models from a text prompt only.
+    #[serde(default = "default_model_3d_text")]
+    pub model_3d_text: String,
+}
+
+fn default_model_3d() -> String {
+    "fal-ai/hunyuan3d-v3/image-to-3d".into()
+}
+fn default_model_3d_text() -> String {
+    "fal-ai/hunyuan3d-v3/text-to-3d".into()
 }
 
 #[derive(Debug, Clone, Deserialize, Serialize, Default)]
@@ -215,6 +228,8 @@ impl Default for ImagesConfig {
             models: vec![ImageModel { id: "fal-ai/flux/schnell".into(), name: Some("FLUX.1 schnell".into()), price: Some(0.003), ..Default::default() }],
             monthly_budget: None,
             admin_key: String::new(),
+            model_3d: default_model_3d(),
+            model_3d_text: default_model_3d_text(),
         }
     }
 }

server/src/images.rs

@@ -38,7 +38,7 @@ pub struct GenerateRequest {
     pub references: Vec<PathBuf>,
 }
 
-fn slug(s: &str) -> String {
+pub(crate) fn slug(s: &str) -> String {
     let mut out: String = s
         .chars()
         .map(|c| if c.is_ascii_alphanumeric() { c.to_ascii_lowercase() } else { '-' })
@@ -121,7 +121,7 @@ fn pick(all: &[ImageModel], stage: &str, purpose: Option<&str>, with_reference:
 }
 
 /// Read local reference images as data URIs (fal.ai accepts them in place of URLs).
-async fn reference_uris(paths: &[PathBuf]) -> Result<Vec<String>> {
+pub(crate) async fn reference_uris(paths: &[PathBuf]) -> Result<Vec<String>> {
     let mut out = Vec::new();
     for p in paths {
         let bytes = tokio::fs::read(p).await.with_context(|| format!("reference image {}", p.display()))?;
@@ -135,7 +135,7 @@ async fn reference_uris(paths: &[PathBuf]) -> Result<Vec<String>> {
     Ok(out)
 }
 
-async fn download(url: &str) -> Result<(Vec<u8>, String)> {
+pub(crate) async fn download(url: &str) -> Result<(Vec<u8>, String)> {
     if let Some(rest) = url.strip_prefix("data:") {
         let (meta, data) = rest.split_once(',').context("malformed data URI")?;
         let ctype = meta.split(';').next().unwrap_or("image/png").to_string();
@@ -348,7 +348,7 @@ pub fn backfill_copies(app: &App) -> Result<usize> {
 }
 
 /// Downscaled copy for the model's context.
-fn preview_for_model(path: &Path) -> Option<ImageData> {
+pub(crate) fn preview_for_model(path: &Path) -> Option<ImageData> {
     let img = image::open(path).ok()?;
     let img = img.resize(1024, 1024, image::imageops::FilterType::Triangle);
     let mut buf = Vec::new();

server/src/jobs.rs

@@ -321,6 +321,8 @@ pub async fn run_with(app: &Arc<App>, job: &Job, trigger: &str, payload: Option<
         instructions: String::new(),
         // New chats keep their approvals and questions out of Telegram (⋯ menu turns it on).
         telegram_quiet: true,
+        summary: String::new(),
+        color: None,
     };
     let session = app.save_session(session)?;
     app.store.job_started(&job.id, &session.id, now)?;

server/src/main.rs

@@ -5,6 +5,8 @@ mod app;
 mod auth;
 mod backup;
 mod blobs;
+mod checks;
+mod claude_code;
 mod cli_api;
 mod budget;
 mod config;
@@ -23,6 +25,7 @@ mod mentions;
 mod metrics;
 mod mcp;
 mod media;
+mod mesh3d;
 mod permission;
 mod prompts;
 mod push;

server/src/mcp.rs

@@ -558,6 +558,42 @@ impl McpManager {
 /// Search the on-demand MCP tools by keywords.
 pub struct McpSearch;
 
+/// Built-in tools matching the search words, with their availability in the current mode.
+fn builtin_matches(ctx: &ToolCtx, words: &[&str]) -> String {
+    if words.is_empty() {
+        return String::new();
+    }
+    let app = &ctx.app;
+    let owner_id = app.session(&ctx.session_id).ok().and_then(|s| s.owner_id);
+    let owner_user = owner_id.as_deref().and_then(|id| app.store.user(id).ok().flatten());
+    let root = app.root_for(owner_id.as_deref(), &ctx.cwd);
+    let agent = crate::prompts::find_agent_for(app, &root, &ctx.cwd, &ctx.agent, owner_id.as_deref());
+    let available: std::collections::HashSet<String> = crate::runner::available_tools(app, &agent, owner_user.as_ref()).iter().map(|t| t.name().to_string()).collect();
+    let mut hits: Vec<(usize, String)> = crate::tools::builtin_tools()
+        .iter()
+        .map(|t| {
+            let name = t.name().to_lowercase();
+            let desc = t.description().to_lowercase();
+            let score: usize = words.iter().map(|w| if name.contains(w) { 3 } else if desc.contains(w) { 1 } else { 0 }).sum();
+            let state = if available.contains(t.name()) {
+                "available – call it directly".to_string()
+            } else if agent.read_only && !t.read_only() {
+                format!("exists, but not in the read-only mode \"{}\" – ask the user to switch to build mode", agent.name)
+            } else {
+                format!("exists, but not available in mode \"{}\" (or disabled in the settings)", agent.name)
+            };
+            (score, format!("- {}: {state}", t.name()))
+        })
+        .filter(|(s, _)| *s >= 2 || words.len() == 1 && *s >= 1)
+        .collect();
+    hits.sort_by(|a, b| b.0.cmp(&a.0));
+    if hits.is_empty() {
+        return String::new();
+    }
+    let list: Vec<String> = hits.into_iter().take(4).map(|(_, l)| l).collect();
+    format!("Built-in tools (not MCP – call them directly by name, not via mcp_call):\n{}\n\n", list.join("\n"))
+}
+
 #[async_trait]
 impl Tool for McpSearch {
     fn name(&self) -> &str {
@@ -602,10 +638,13 @@ impl Tool for McpSearch {
             .filter(|(s, _)| *s > 0 || words.is_empty())
             .collect();
         scored.sort_by(|a, b| b.0.cmp(&a.0));
+        // Models also look here for built-in tools (e.g. generate_3d): say that they exist,
+        // whether this mode has them, and that they are called directly.
+        let builtin = if server.is_none() { builtin_matches(ctx, &words) } else { String::new() };
         if scored.is_empty() {
-            return Ok(ToolOutput::text("No matching tools. Try other keywords or another server."));
+            return Ok(ToolOutput::text(if builtin.is_empty() { "No matching tools. Try other keywords or another server.".to_string() } else { builtin }));
         }
-        let mut out = String::new();
+        let mut out = builtin;
         for (_, t) in scored.iter().take(8) {
             let desc: String = t.info.description.chars().take(300).collect();
             out.push_str(&format!("## {}\n{}\nInput schema: {}\n\n", t.full_name, desc, t.info.input_schema));

server/src/media.rs

@@ -11,7 +11,7 @@ use std::path::{Path, PathBuf};
 
 #[derive(Debug, Serialize, PartialEq)]
 pub struct MediaItem {
-    /// "image", "video" or "audio".
+    /// "image", "video", "audio" or "model" (3D).
     pub kind: &'static str,
     pub url: String,
     pub name: String,
@@ -21,11 +21,17 @@ pub struct MediaItem {
     /// Message to jump to (only for messages of the chat itself, not of subagents).
     #[serde(skip_serializing_if = "Option::is_none")]
     pub message_id: Option<String>,
+    /// 3D models: absolute path (opened in the 3D view) and a preview image.
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub path: Option<String>,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub preview: Option<String>,
 }
 
 const IMAGE: &[&str] = &["png", "jpg", "jpeg", "gif", "webp", "svg", "bmp", "avif"];
 const VIDEO: &[&str] = &["mp4", "webm", "mov", "m4v", "ogv"];
 const AUDIO: &[&str] = &["mp3", "wav", "ogg", "oga", "m4a", "flac", "opus", "aac"];
+const MODEL: &[&str] = &["glb", "gltf", "stl", "3mf", "obj", "step", "stp"];
 
 /// Kind of a media file by its extension.
 pub fn kind_of(path: &str) -> Option<&'static str> {
@@ -36,6 +42,8 @@ pub fn kind_of(path: &str) -> Option<&'static str> {
         Some("video")
     } else if AUDIO.contains(&ext.as_str()) {
         Some("audio")
+    } else if MODEL.contains(&ext.as_str()) {
+        Some("model")
     } else {
         None
     }
@@ -118,7 +126,7 @@ pub fn collect(app: &App, session_id: &str) -> anyhow::Result<Vec<MediaItem>> {
     // Generated images whose tool result was not found (e.g. removed by a rewind).
     for img in app.store.images_of_sessions(&sessions)? {
         push(
-            MediaItem { kind: "image", url: format!("/api/images/{}/file", img.id), name: file_name(&img.path), source: "generated", created_at: img.created_at, message_id: None },
+            MediaItem { kind: "image", url: format!("/api/images/{}/file", img.id), name: file_name(&img.path), source: "generated", created_at: img.created_at, message_id: None, path: None, preview: None },
             &mut out,
         );
     }
@@ -133,6 +141,10 @@ pub fn collect(app: &App, session_id: &str) -> anyhow::Result<Vec<MediaItem>> {
     Ok(out)
 }
 
+fn raw_url(p: &Path) -> String {
+    format!("/api/files/raw?path={}", encode(&p.display().to_string()))
+}
+
 fn file_name(p: &str) -> String {
     Path::new(p).file_name().and_then(|n| n.to_str()).unwrap_or(p).to_string()
 }
@@ -144,25 +156,33 @@ fn collect_message(m: &Message, cwd: &Path, own: bool, call_msg: Option<&str>, a
     let file = |p: &str, source: &'static str| -> Option<MediaItem> {
         let kind = kind_of(p)?;
         let abs = resolve(p, cwd);
-        abs.is_file().then(|| MediaItem { kind, url: format!("/api/files/raw?path={}", encode(&abs.display().to_string())), name: file_name(p), source, created_at: at, message_id: mid.clone() })
+        abs.is_file().then(|| MediaItem { kind, url: raw_url(&abs), name: file_name(p), source, created_at: at, message_id: mid.clone(), path: Some(abs.display().to_string()), preview: None })
     };
     for p in &m.parts {
         match p {
             Part::Image { image } if m.role == Role::User => {
                 if let Some(h) = &image.blob {
-                    add(MediaItem { kind: kind_of_mime(&image.media_type), url: format!("/api/blobs/{h}"), name: "image".into(), source: "upload", created_at: at, message_id: mid.clone() });
+                    add(MediaItem { kind: kind_of_mime(&image.media_type), url: format!("/api/blobs/{h}"), name: "image".into(), source: "upload", created_at: at, message_id: mid.clone(), path: None, preview: None });
+                }
+            }
+            // generate_3d: the model with its preview (not the preview as a separate image).
+            Part::ToolResult { meta: Some(meta), .. } if meta["model_file"].is_string() => {
+                let file = PathBuf::from(meta["model_file"].as_str().unwrap_or_default());
+                if file.is_file() {
+                    let preview = meta["preview"].as_str().map(PathBuf::from).filter(|p| p.is_file()).map(|p| raw_url(&p));
+                    add(MediaItem { kind: "model", url: raw_url(&file), name: file_name(&file.display().to_string()), source: "generated", created_at: at, message_id: result_mid.clone(), path: Some(file.display().to_string()), preview });
                 }
             }
             Part::ToolResult { images, meta, .. } => {
                 let ids: Vec<&str> = meta.as_ref().and_then(|v| v["image_ids"].as_array()).map(|a| a.iter().filter_map(Value::as_str).collect()).unwrap_or_default();
                 if !ids.is_empty() {
                     for id in ids {
-                        add(MediaItem { kind: "image", url: format!("/api/images/{id}/file"), name: "image".into(), source: "generated", created_at: at, message_id: result_mid.clone() });
+                        add(MediaItem { kind: "image", url: format!("/api/images/{id}/file"), name: "image".into(), source: "generated", created_at: at, message_id: result_mid.clone(), path: None, preview: None });
                     }
                 } else {
                     for img in images {
                         if let Some(h) = &img.blob {
-                            add(MediaItem { kind: kind_of_mime(&img.media_type), url: format!("/api/blobs/{h}"), name: "screenshot".into(), source: "tool", created_at: at, message_id: result_mid.clone() });
+                            add(MediaItem { kind: kind_of_mime(&img.media_type), url: format!("/api/blobs/{h}"), name: "screenshot".into(), source: "tool", created_at: at, message_id: result_mid.clone(), path: None, preview: None });
                         }
                     }
                 }

server/src/mesh3d.rs

@@ -0,0 +1,430 @@
+//! 3D models with fal.ai (generate_3d): from an image (plus optional back/left/right
+//! views), from a text prompt, or from an image steered by text – the 3D models take no
+//! text with an image, so the image is first refined with the prompt (image edit model)
+//! and then converted. The result is a GLB file (plus a preview image) in the project.
+
+use crate::app::App;
+use crate::config::expand_env;
+use crate::store::UsageRecord;
+use crate::tools::{Tool, ToolCtx, ToolOutput};
+use crate::types::now_ms;
+use anyhow::{Context, Result, anyhow, bail};
+use async_trait::async_trait;
+use serde_json::{Value, json};
+use std::path::{Path, PathBuf};
+use std::time::Duration;
+
+const STYLES: &[&str] = &["textured", "geometry", "lowpoly"];
+
+/// Request body for a fal.ai 3D endpoint (the families name their fields differently).
+fn request_body(model: &str, prompt: Option<&str>, images: &Views, style: &str, pbr: bool, faces: Option<u64>) -> Value {
+    let mut b = json!({});
+    if model.contains("tripo") {
+        // Tripo: image_url / prompt, texture + pbr flags, face_limit.
+        if let Some(front) = &images.front {
+            b["image_url"] = json!(front);
+        }
+        if let Some(p) = prompt {
+            b["prompt"] = json!(p);
+        }
+        b["texture"] = json!(style != "geometry");
+        b["pbr"] = json!(style != "geometry" && pbr);
+        if let Some(f) = faces {
+            b["face_limit"] = json!(f);
+        }
+        if style == "lowpoly" {
+            b["face_limit"] = json!(faces.unwrap_or(20_000));
+        }
+    } else if model.contains("trellis") {
+        if let Some(front) = &images.front {
+            b["image_url"] = json!(front);
+        }
+    } else {
+        // Hunyuan3D: front + optional views, generate_type, enable_pbr, face_count.
+        if let Some(front) = &images.front {
+            b["input_image_url"] = json!(front);
+        }
+        for (k, v) in [("back_image_url", &images.back), ("left_image_url", &images.left), ("right_image_url", &images.right)] {
+            if let Some(v) = v {
+                b[k] = json!(v);
+            }
+        }
+        if let Some(p) = prompt {
+            b["prompt"] = json!(p);
+        }
+        b["generate_type"] = json!(match style {
+            "geometry" => "Geometry",
+            "lowpoly" => "LowPoly",
+            _ => "Normal",
+        });
+        b["enable_pbr"] = json!(style != "geometry" && pbr);
+        if let Some(f) = faces {
+            b["face_count"] = json!(f.clamp(40_000, 1_500_000));
+        }
+    }
+    b
+}
+
+/// Data URIs of the views (front required for image-to-3D).
+#[derive(Default)]
+struct Views {
+    front: Option<String>,
+    back: Option<String>,
+    left: Option<String>,
+    right: Option<String>,
+}
+
+impl Views {
+    fn extra(&self) -> usize {
+        [&self.back, &self.left, &self.right].iter().filter(|v| v.is_some()).count()
+    }
+}
+
+/// Price of one generation (USD) by the published fal.ai prices; a price configured for
+/// the model under [images] models wins.
+fn price(app: &App, model: &str, style: &str, pbr: bool, multiview: bool, faces: bool) -> f64 {
+    if let Some(p) = app.config().images.models.iter().find(|m| m.id == model).and_then(|m| m.price) {
+        return p;
+    }
+    if model.contains("tripo") {
+        return match style {
+            "geometry" => 0.20,
+            _ => 0.30,
+        };
+    }
+    if model.contains("hunyuan") {
+        let base = match style {
+            "geometry" => 0.225,
+            "lowpoly" => 0.45,
+            _ => 0.375,
+        };
+        let extras = [pbr && style != "geometry", multiview, faces].iter().filter(|x| **x).count() as f64;
+        return base + 0.15 * extras;
+    }
+    0.0
+}
+
+/// URL of the queue API for fal.ai (requests that take minutes).
+fn queue_base(app: &App) -> String {
+    let base = expand_env(&app.config().images.base_url);
+    if base.contains("://fal.run") { "https://queue.fal.run".into() } else { base.trim_end_matches('/').to_string() }
+}
+
+/// Submit to fal.ai's queue and wait for the result, reporting progress.
+async fn run_queued(app: &App, ctx: &ToolCtx, model: &str, body: &Value) -> Result<Value> {
+    let key = expand_env(&app.config().images.api_key);
+    let client = crate::provider::http_client();
+    let submit = client
+        .post(format!("{}/{}", queue_base(app), model.trim_matches('/')))
+        .header("Authorization", format!("Key {key}"))
+        .timeout(Duration::from_secs(120))
+        .json(body)
+        .send()
+        .await
+        .context("fal.ai request failed")?;
+    if !submit.status().is_success() {
+        return Err(crate::provider::http_error(submit).await);
+    }
+    let sub: Value = submit.json().await?;
+    let status_url = sub["status_url"].as_str().context("fal.ai: no status_url")?.to_string();
+    let response_url = sub["response_url"].as_str().context("fal.ai: no response_url")?.to_string();
+    let started = std::time::Instant::now();
+    loop {
+        if ctx.cancel.is_cancelled() {
+            bail!("cancelled");
+        }
+        if started.elapsed() > Duration::from_secs(20 * 60) {
+            bail!("fal.ai did not finish within 20 minutes");
+        }
+        tokio::time::sleep(Duration::from_secs(4)).await;
+        let st: Value = client.get(&status_url).header("Authorization", format!("Key {key}")).timeout(Duration::from_secs(30)).send().await?.json().await?;
+        match st["status"].as_str().unwrap_or("") {
+            "COMPLETED" => break,
+            "IN_QUEUE" => ctx.progress(format!("waiting in fal.ai's queue (position {}) – {} s", st["queue_position"].as_u64().unwrap_or(0), started.elapsed().as_secs())),
+            "IN_PROGRESS" => ctx.progress(format!("generating the 3D model – {} s", started.elapsed().as_secs())),
+            other => bail!("fal.ai: unexpected status {other}: {st}"),
+        }
+    }
+    let resp = client.get(&response_url).header("Authorization", format!("Key {key}")).timeout(Duration::from_secs(60)).send().await?;
+    if !resp.status().is_success() {
+        return Err(crate::provider::http_error(resp).await);
+    }
+    Ok(resp.json().await?)
+}
+
+/// URL of the mesh and of the preview image in a fal.ai 3D result.
+fn result_urls(out: &Value) -> (Option<String>, Option<String>) {
+    let s = |v: &Value| v.as_str().map(String::from);
+    let mesh = s(&out["model_glb"]["url"])
+        .or_else(|| s(&out["model_mesh"]["url"]))
+        .or_else(|| s(&out["model_urls"]["glb"]["url"]))
+        .or_else(|| s(&out["model_file"]["url"]))
+        .or_else(|| s(&out["mesh"]["url"]));
+    let thumb = s(&out["thumbnail"]["url"]).or_else(|| s(&out["rendered_image"]["url"]));
+    (mesh, thumb)
+}
+
+/// File extension of a downloaded mesh: from the URL, else GLB (what the models return).
+fn ext_of(url: &str) -> &'static str {
+    let path = url.split(['?', '#']).next().unwrap_or(url).to_ascii_lowercase();
+    ["glb", "gltf", "fbx", "obj", "usdz", "stl"].into_iter().find(|e| path.ends_with(&format!(".{e}"))).unwrap_or("glb")
+}
+
+/// An image the user attached to the chat ("attached" = the first image of the latest
+/// message with images, "attached:2" = its second), written to `dir` so it can be used
+/// like a project file.
+async fn attached_image(app: &App, session_id: &str, spec: &str, dir: &Path) -> Result<PathBuf> {
+    let n: usize = spec.strip_prefix("attached").map(|r| r.trim_start_matches(':').trim()).filter(|r| !r.is_empty()).map(|r| r.parse()).transpose().map_err(|_| anyhow!("use \"attached\" or \"attached:2\""))?.unwrap_or(1);
+    let root = app.root_session_id(session_id);
+    let messages = app.store.messages(&root)?;
+    let images: Vec<crate::types::ImageData> = messages
+        .iter()
+        .rev()
+        .filter(|m| m.role == crate::types::Role::User)
+        .map(|m| m.parts.iter().filter_map(|p| if let crate::types::Part::Image { image } = p { Some(image.clone()) } else { None }).collect::<Vec<_>>())
+        .find(|imgs| !imgs.is_empty())
+        .ok_or_else(|| anyhow!("no image attached to this chat"))?;
+    let img = images.get(n.saturating_sub(1)).ok_or_else(|| anyhow!("the latest message has only {} image(s)", images.len()))?;
+    let (mime, bytes) = match &img.blob {
+        Some(h) => app.store.blob(h)?.ok_or_else(|| anyhow!("attached image not found"))?,
+        None => (img.media_type.clone(), base64::Engine::decode(&base64::engine::general_purpose::STANDARD, img.data.as_bytes())?),
+    };
+    let ext = match mime.as_str() {
+        "image/jpeg" => "jpg",
+        "image/webp" => "webp",
+        _ => "png",
+    };
+    tokio::fs::create_dir_all(dir).await?;
+    let path = dir.join(format!("{}-attached-{n}.{ext}", chrono::Local::now().format("%Y%m%d-%H%M%S")));
+    tokio::fs::write(&path, &bytes).await?;
+    Ok(path)
+}
+
+/// An image argument: a project file, or an image attached to the chat.
+async fn image_arg(ctx: &ToolCtx, spec: &str, dir: &Path) -> Result<PathBuf> {
+    if spec.starts_with("attached") {
+        attached_image(&ctx.app, &ctx.session_id, spec, dir).await
+    } else {
+        ctx.resolve(spec)
+    }
+}
+
+pub struct Generate3d;
+
+#[async_trait]
+impl Tool for Generate3d {
+    fn name(&self) -> &str {
+        "generate_3d"
+    }
+    fn description(&self) -> String {
+        "Generate a 3D model (GLB) with fal.ai and save it in the project – from an image of the \
+         object (a file, or image: \"attached\" for an image the user pasted into the chat; best: a \
+         clean front view; optional back/left/right views improve the shape), from a \
+         text prompt alone, or from an image steered by a prompt (the image is refined with the \
+         prompt first, then converted). style: \"textured\" (default), \"geometry\" (untextured – for \
+         3D printing), \"lowpoly\" (games). Takes one to several minutes and costs money (about \
+         $0.25–0.75): generate only what the user asked for. The user can open the model in the 3D \
+         view of the file manager."
+            .into()
+    }
+    fn schema(&self) -> Value {
+        json!({
+            "type": "object",
+            "properties": {
+                "prompt": {"type": "string", "description": "What the model should be (English). With an image: how to change/clean it up before the conversion."},
+                "image": {"type": "string", "description": "Image of the object (front view): a file path, or \"attached\" for the image the user attached to the chat (\"attached:2\" = the second of that message)"},
+                "back": {"type": "string", "description": "Optional back view image (path or \"attached:N\")"},
+                "left": {"type": "string", "description": "Optional left view image (path or \"attached:N\")"},
+                "right": {"type": "string", "description": "Optional right view image (path or \"attached:N\")"},
+                "style": {"type": "string", "enum": STYLES},
+                "pbr": {"type": "boolean", "description": "PBR materials (metal/roughness), textured models only; costs extra"},
+                "face_count": {"type": "integer", "description": "Target number of faces (optional)"},
+                "directory": {"type": "string", "description": "Target directory relative to the working directory (default: <images.output_dir>/3d)"},
+                "model": {"type": "string", "description": "fal.ai model id – only if the user asks for a specific one"}
+            }
+        })
+    }
+    fn title(&self, input: &Value) -> String {
+        let what = input["prompt"].as_str().map(|p| p.chars().take(70).collect::<String>()).or_else(|| input["image"].as_str().map(String::from)).unwrap_or_default();
+        format!("3D model: {what}")
+    }
+    fn read_only(&self) -> bool {
+        false
+    }
+    async fn run(&self, input: Value, ctx: &ToolCtx) -> Result<ToolOutput> {
+        let app = ctx.app.clone();
+        let cfg = app.config();
+        if !cfg.images.enabled {
+            bail!("fal.ai is disabled – enable image generation in the settings");
+        }
+        if expand_env(&cfg.images.api_key).is_empty() {
+            bail!("no fal.ai API key configured");
+        }
+        let owner = app.session(&ctx.session_id).ok().and_then(|s| s.owner_id);
+        crate::budget::check(&app, "fal", owner.as_deref())?;
+        let prompt = input["prompt"].as_str().map(str::trim).filter(|p| !p.is_empty()).map(String::from);
+        let dir_arg = input["directory"].as_str().map(String::from).unwrap_or_else(|| format!("{}/3d", cfg.images.output_dir.trim_end_matches('/')));
+        let dir = ctx.resolve(&dir_arg)?;
+        let image = match input["image"].as_str() {
+            Some(spec) => Some(image_arg(ctx, spec, &dir).await?),
+            None => None,
+        };
+        if prompt.is_none() && image.is_none() {
+            bail!("give an image of the object, a prompt, or both");
+        }
+        let style = input["style"].as_str().filter(|s| STYLES.contains(s)).unwrap_or("textured");
+        let pbr = input["pbr"].as_bool().unwrap_or(false);
+        let faces = input["face_count"].as_u64();
+        let mut notes = Vec::new();
+
+        // Image + prompt: refine the image with the prompt first (3D models take no text).
+        let mut front = image.clone();
+        if let (Some(img), Some(p)) = (&image, &prompt) {
+            ctx.progress("refining the image with the prompt");
+            let edit = crate::images::choose_model(&app, "final", Some("illustration"), true);
+            if edit.reference_param.is_some() {
+                let records = crate::images::generate(
+                    &app,
+                    crate::images::GenerateRequest {
+                        prompt: format!(
+                            "{p}. Show exactly one object, complete and centered, as a clean product shot: plain light neutral background, soft even lighting, no text, no other objects."
+                        ),
+                        model: Some(edit.id.clone()),
+                        size: None,
+                        count: 1,
+                        dir: dir.clone(),
+                        user_id: owner.clone(),
+                        session_id: Some(ctx.session_id.clone()),
+                        references: vec![img.clone()],
+                    },
+                )
+                .await
+                .map_err(|e| anyhow!("refining the image failed: {e:#}"))?;
+                if let Some(r) = records.first() {
+                    front = Some(PathBuf::from(&r.path));
+                    notes.push(format!("Refined image: {}", rel(&r.path, &ctx.cwd)));
+                }
+            } else {
+                notes.push("No image edit model configured – the prompt was not applied to the image.".into());
+            }
+        }
+
+        let mut views = Views::default();
+        if let Some(f) = &front {
+            views.front = crate::images::reference_uris(std::slice::from_ref(f)).await?.pop();
+            for (field, slot) in [("back", &mut views.back), ("left", &mut views.left), ("right", &mut views.right)] {
+                if let Some(p) = input[field].as_str() {
+                    *slot = crate::images::reference_uris(&[image_arg(ctx, p, &dir).await?]).await?.pop();
+                }
+            }
+        }
+        let model = input["model"].as_str().filter(|m| !m.is_empty()).map(String::from).unwrap_or_else(|| if front.is_some() { cfg.images.model_3d.clone() } else { cfg.images.model_3d_text.clone() });
+        if views.extra() > 0 && !model.contains("hunyuan") {
+            notes.push("This model takes only the front view; the other views were not used.".into());
+        }
+        let text = if front.is_none() { prompt.as_deref() } else { None };
+        let body = request_body(&model, text, &views, style, pbr, faces);
+        ctx.progress(format!("sending to {model}"));
+        let out = run_queued(&app, ctx, &model, &body).await?;
+        let (mesh_url, thumb_url) = result_urls(&out);
+        let mesh_url = mesh_url.ok_or_else(|| anyhow!("fal.ai returned no 3D model: {}", out.to_string().chars().take(300).collect::<String>()))?;
+
+        tokio::fs::create_dir_all(&dir).await?;
+        let stamp = chrono::Local::now().format("%Y%m%d-%H%M%S");
+        // Named after the prompt, else the image (without a time stamp it already carries).
+        let stem = image.as_ref().and_then(|p| p.file_stem()).and_then(|s| s.to_str()).unwrap_or("model");
+        let stem = if stem.len() > 16 && stem.as_bytes()[8] == b'-' && stem[..8].bytes().all(|b| b.is_ascii_digit()) { &stem[16..] } else { stem };
+        let base = crate::images::slug(prompt.as_deref().unwrap_or(stem).trim_start_matches('-'));
+        let (bytes, _) = crate::images::download(&mesh_url).await?;
+        let mesh_path = dir.join(format!("{stamp}-{base}.{}", ext_of(&mesh_url)));
+        tokio::fs::write(&mesh_path, &bytes).await?;
+        let mut thumb_path = None;
+        if let Some(t) = thumb_url {
+            if let Ok((tb, _)) = crate::images::download(&t).await {
+                let p = dir.join(format!("{stamp}-{base}-preview.png"));
+                if tokio::fs::write(&p, &tb).await.is_ok() {
+                    thumb_path = Some(p);
+                }
+            }
+        }
+
+        // Cost into the statistics (provider "fal", like images).
+        let cost = price(&app, &model, style, pbr, views.extra() > 0 && model.contains("hunyuan"), faces.is_some());
+        let session = ctx.session_id.clone();
+        let _ = app.store.add_usage(&UsageRecord {
+            ts: now_ms(),
+            session_id: session.clone(),
+            root_session_id: app.root_session_id(&session),
+            provider: "fal".into(),
+            model: model.clone(),
+            agent: "3d".into(),
+            input_tokens: 0,
+            output_tokens: 0,
+            cache_read_tokens: 0,
+            cache_write_tokens: 0,
+            ttft_ms: 0,
+            duration_ms: 0,
+            cost,
+            error: false,
+            user_id: owner,
+            allowance: None,
+        });
+
+        let mesh_rel = rel(&mesh_path.display().to_string(), &ctx.cwd);
+        let mut text = format!("3D model ({model}, {style}{}): {mesh_rel} ({} KB)", if pbr && style != "geometry" { ", PBR" } else { "" }, bytes.len() / 1024);
+        if let Some(t) = &thumb_path {
+            text.push_str(&format!("\nPreview: {}", rel(&t.display().to_string(), &ctx.cwd)));
+        }
+        if cost > 0.0 {
+            text.push_str(&format!("\nCost: about ${cost:.2}"));
+        }
+        for n in &notes {
+            text.push_str(&format!("\n{n}"));
+        }
+        text.push_str("\nThe user can open the model in the 3D view of the file manager.");
+        let images = thumb_path.as_deref().and_then(crate::images::preview_for_model).into_iter().collect();
+        Ok(ToolOutput {
+            content: text,
+            images,
+            meta: Some(json!({
+                "model_file": mesh_path.display().to_string(),
+                "preview": thumb_path.map(|p| p.display().to_string()),
+            })),
+            ..Default::default()
+        })
+    }
+}
+
+fn rel(path: &str, cwd: &Path) -> String {
+    Path::new(path).strip_prefix(cwd).map(|p| p.display().to_string()).unwrap_or_else(|_| path.to_string())
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn bodies_per_model_family() {
+        let views = Views { front: Some("data:a".into()), back: Some("data:b".into()), ..Default::default() };
+        let h = request_body("fal-ai/hunyuan3d-v3/image-to-3d", None, &views, "geometry", true, Some(10));
+        assert_eq!(h["input_image_url"], "data:a");
+        assert_eq!(h["back_image_url"], "data:b");
+        assert_eq!(h["generate_type"], "Geometry");
+        assert_eq!(h["enable_pbr"], false);
+        assert_eq!(h["face_count"], 40_000);
+        let t = request_body("tripo3d/h3.1/image-to-3d", None, &views, "textured", true, None);
+        assert_eq!((t["image_url"].as_str(), t["texture"].as_bool(), t["pbr"].as_bool()), (Some("data:a"), Some(true), Some(true)));
+        let txt = request_body("fal-ai/hunyuan3d-v3/text-to-3d", Some("a chair"), &Views::default(), "textured", false, None);
+        assert_eq!((txt["prompt"].as_str(), txt["generate_type"].as_str()), (Some("a chair"), Some("Normal")));
+    }
+
+    #[test]
+    fn result_urls_of_the_families() {
+        let h = json!({"model_glb": {"url": "https://x/m.glb"}, "thumbnail": {"url": "https://x/t.png"}});
+        assert_eq!(result_urls(&h), (Some("https://x/m.glb".into()), Some("https://x/t.png".into())));
+        let t = json!({"model_mesh": {"url": "https://x/m.glb"}, "rendered_image": {"url": "https://x/r.webp"}});
+        assert_eq!(result_urls(&t).1.as_deref(), Some("https://x/r.webp"));
+        assert_eq!(ext_of("https://x/a.FBX?sig=1"), "fbx");
+        assert_eq!(ext_of("https://x/blob"), "glb");
+    }
+}

server/src/provider/mod.rs

@@ -61,9 +61,21 @@ impl Registry {
                 ProviderEntry { name: name.clone(), provider, models },
             );
         }
+        // Claude Code (the CLI's own agent) appears as a model list when it is installed.
+        if !providers.contains_key(crate::claude_code::PROVIDER) && crate::claude_code::binary().is_some() {
+            providers.insert(
+                crate::claude_code::PROVIDER.to_string(),
+                ProviderEntry { name: crate::claude_code::PROVIDER.to_string(), provider: Arc::new(crate::claude_code::Marker), models: crate::claude_code::models() },
+            );
+        }
         Self { providers, limits }
     }
 
+    /// First model of any provider but `skip`.
+    pub fn first_model_excluding(&self, skip: &str) -> Option<String> {
+        self.providers.values().filter(|e| e.name != skip).find_map(|e| e.models.first().map(|m| format!("{}/{}", e.name, m.id)))
+    }
+
     /// Wait for a free slot on the model and its provider. Always acquired in the
     /// same order (model, then provider), so concurrent requests cannot deadlock.
     pub async fn acquire(&self, spec: &str) -> Slot {

server/src/push.rs

@@ -200,8 +200,12 @@ pub fn spawn_listener(app: Arc<App>) {
                 Err(tokio::sync::broadcast::error::RecvError::Lagged(_)) => continue,
                 Err(_) => break,
             };
+            let mut permission_id = None;
             let (session_id, kind, body) = match &ev {
-                Event::PermissionRequest { session_id, title, tool, .. } => (session_id.clone(), "permission", format!("{tool}: {title}")),
+                Event::PermissionRequest { id, session_id, title, tool, .. } => {
+                    permission_id = Some(id.clone());
+                    (session_id.clone(), "permission", format!("{tool}: {title}"))
+                }
                 Event::QuestionRequest { session_id, questions, .. } => {
                     let q = questions.first().map(|q| q.question.clone()).unwrap_or_default();
                     (session_id.clone(), "question", q)
@@ -228,6 +232,8 @@ pub fn spawn_listener(app: Arc<App>) {
                 continue;
             }
             let payload = json!({
+                // Lets the notification itself approve or reject (service worker → POST /api/permissions/<id>).
+                "permission_id": permission_id,
                 "kind": kind,
                 "title": title,
                 "body": body.chars().take(180).collect::<String>(),

server/src/runner.rs

@@ -2,7 +2,7 @@
 //! checks), feed results back, repeat until the model stops.
 
 use crate::app::{App, PermissionReply};
-use crate::permission::{Decision, Evaluator, bash_prefix, split_command};
+use crate::permission::{Decision, Evaluator, bash_prefix, is_dangerous, split_command};
 use crate::prompts::{self, Agent};
 use crate::provider::{ChatRequest, Provider, StreamEvent};
 use crate::store::UsageRecord;
@@ -73,6 +73,7 @@ pub fn submit(app: Arc<App>, session_id: String, parts: Vec<Part>, source: &str)
         .join("\n");
     app.emit(Event::SessionStatus { session_id: session_id.clone(), busy: true });
     let source = source.to_string();
+    let turn_started = now_ms();
 
     tokio::spawn(async move {
         let res = async {
@@ -114,6 +115,10 @@ pub fn submit(app: Arc<App>, session_id: String, parts: Vec<Part>, source: &str)
             if cancel.is_cancelled() { Vec::new() } else { take_queue(&app, &session_id) }
         });
         app.emit(Event::SessionStatus { session_id: session_id.clone(), busy: false });
+        if leftover.is_empty() && !cancel.is_cancelled() {
+            spawn_summary(app.clone(), session_id.clone());
+            crate::checks::spawn_after_turn(app.clone(), session_id.clone(), turn_started);
+        }
         if !leftover.is_empty() {
             let _ = start_prompt(app, session_id, leftover);
         }
@@ -145,7 +150,7 @@ pub fn abort(app: &App, session_id: &str) {
 /// Messages since the last compaction summary. Tool calls left without a
 /// result (run interrupted, e.g. by a server restart) get a synthetic result:
 /// providers reject histories with unanswered tool calls.
-fn active_history(all: Vec<Message>) -> Vec<Message> {
+pub(crate) fn active_history(all: Vec<Message>) -> Vec<Message> {
     let start = all
         .iter()
         .rposition(|m| m.parts.iter().any(|p| matches!(p, Part::Summary { .. })))
@@ -215,7 +220,7 @@ pub fn available_tools(app: &App, agent: &Agent, owner: Option<&crate::store::Us
     let cfg = app.config();
     let mut all = tools::builtin_tools();
     if !cfg.images.enabled {
-        all.retain(|t| t.name() != "generate_image");
+        all.retain(|t| t.name() != "generate_image" && t.name() != "generate_3d");
     }
     let (direct, deferred) = app.mcp.tools(&cfg, owner);
     all.extend(direct);
@@ -263,6 +268,10 @@ fn run_session_boxed(
 
 /// Run the loop for a session until the model stops. Returns the final text.
 pub async fn run_session(app: Arc<App>, session_id: &str, cancel: CancellationToken, depth: usize) -> Result<String> {
+    // Chats on a "claude-code/…" model are run by the Claude Code CLI.
+    if depth == 0 && crate::claude_code::is_claude_code(&app.session(session_id)?.model) {
+        return crate::claude_code::run(app, session_id, cancel).await;
+    }
     let mut final_text = String::new();
     let mut stop_hooks = 0;
     let mut refine_done = 0u32;
@@ -639,9 +648,18 @@ async fn execute_call(
     // Permission check. Approvals are tracked on the top-level session.
     let root = app.root_session_id(&session.id);
     let cfg = app.config();
-    let decision = app.with_runtime(&root, |r| {
+    let (mut decision, session_approved) = app.with_runtime(&root, |r| {
-        Evaluator { cfg: &cfg.permissions, mode: &session.permission_mode, approved: &r.approved }.evaluate(tool.as_ref(), &input)
+        (Evaluator { cfg: &cfg.permissions, mode: &session.permission_mode, approved: &r.approved }.evaluate(tool.as_ref(), &input), r.approved.clone())
     });
+    // What the user allowed "for this project" earlier counts as well.
+    if decision == Decision::Ask {
+        let project = app.store.project_approvals(&session.cwd).unwrap_or_default();
+        if !project.is_empty() {
+            let mut all = session_approved;
+            all.extend(project);
+            decision = Evaluator { cfg: &cfg.permissions, mode: &session.permission_mode, approved: &all }.evaluate(tool.as_ref(), &input);
+        }
+    }
     match decision {
         Decision::Deny => {
             return tool_result(call_id, call_name, "Denied by the permission rules in the configuration.".into(), true, None);
@@ -659,16 +677,27 @@ async fn execute_call(
                     }
                     return tool_result(call_id, call_name, text, true, None);
                 }
-                PermissionReply::Always => app.with_runtime(&root, |r| {
+                PermissionReply::Always | PermissionReply::Project => {
+                    // (key, may be remembered for the whole project)
+                    let mut keys: Vec<(String, bool)> = Vec::new();
                     if name == "bash" {
                         let cmd = input["command"].as_str().unwrap_or("");
                         for part in split_command(cmd).unwrap_or_default() {
-                            r.approved.insert(format!("bash:{}", bash_prefix(&part)));
+                            // Dangerous commands (rm -r, git push, docker …) are never remembered beyond this chat.
+                            keys.push((format!("bash:{}", bash_prefix(&part)), !is_dangerous(&part)));
                         }
                     } else {
-                        r.approved.insert(name.to_string());
+                        keys.push((name.to_string(), true));
                     }
-                }),
+                    app.with_runtime(&root, |r| r.approved.extend(keys.iter().map(|(k, _)| k.clone())));
+                    if reply == PermissionReply::Project {
+                        for (k, ok) in &keys {
+                            if *ok {
+                                let _ = app.store.add_project_approval(&session.cwd, k);
+                            }
+                        }
+                    }
+                }
                 PermissionReply::Once => {}
             }
             if let Some(sel) = hunks {
@@ -868,6 +897,8 @@ fn create_child(app: &Arc<App>, ctx: &ToolCtx, agent_name: &str, description: &s
         folder: None,
         instructions: String::new(),
         telegram_quiet: false,
+        summary: String::new(),
+        color: None,
     };
     let child = app.save_session(child)?;
     let msg = Message::new(Role::User, vec![Part::Text { text: prompt }]);
@@ -1113,7 +1144,8 @@ async fn stream_step(
         let mut message = Message::new(Role::Assistant, parts);
         message.id = msg_id;
         message.model = Some(model_spec.to_string());
-        message.usage = Some(usage.clone());
+        // With its cost (charged, or valued at list prices) for the line under the answer.
+        message.usage = Some(Usage { cost: Some(req.model.cost(&usage)), ..usage.clone() });
         if !message.parts.is_empty() {
             app.store.add_message(&session.id, &message)?;
             app.emit(Event::MessageAdded { session_id: session.id.clone(), message: message.clone() });
@@ -1148,6 +1180,9 @@ fn small_model(app: &App, session: &Session) -> String {
     let cfg = app.config();
     if !cfg.server.small_model.is_empty() && app.registry().resolve(&cfg.server.small_model).is_ok() {
         cfg.server.small_model.clone()
+    } else if crate::claude_code::is_claude_code(&session.model) {
+        // Claude Code runs itself; side tasks need an ordinary model.
+        app.registry().first_model_excluding(crate::claude_code::PROVIDER).unwrap_or_else(|| session.model.clone())
     } else {
         session.model.clone()
     }
@@ -1175,6 +1210,122 @@ fn record_side_usage(app: &App, session: &Session, spec: &str, model: &crate::co
     });
 }
 
+/// Cut a text down to `max` bytes keeping the beginning (the goal) and the end (where it went).
+pub(crate) fn fit(s: &str, max: usize) -> String {
+    if s.len() <= max {
+        return s.to_string();
+    }
+    let head = clip(s, max * 2 / 3);
+    let mut start = s.len() - max / 3;
+    while !s.is_char_boundary(start) {
+        start += 1;
+    }
+    format!("{}\n…\n{}", head.split(" […").next().unwrap_or(&head), &s[start..])
+}
+
+/// A short, tool-free job for the small model (summaries, explanations). The input is cut to the
+/// model's context window, so models with 8k tokens work as well as large ones: tokens left for
+/// the input = context − answer − prompt, at a conservative 2.5 bytes per token.
+async fn side_task(app: &App, session: &Session, kind: &str, system: &str, input: &str, max_out: u64) -> Result<String> {
+    let spec = small_model(app, session);
+    let (provider, mut model) = app.registry().resolve(&spec)?;
+    model.effort = Some("low".into());
+    let ctx = model.context.unwrap_or(32_000);
+    let room_tokens = ctx.saturating_sub(max_out + system.len() as u64 / 3 + 400).max(600);
+    let input = fit(input, (room_tokens as usize * 5 / 2).min(60_000));
+    let req = ChatRequest {
+        system: system.into(),
+        messages: vec![Message::new(Role::User, vec![Part::Text { text: input }])],
+        tools: vec![],
+        max_tokens: max_out,
+        reasoning: false,
+        session_id: Some(session.id.clone()),
+        model: model.clone(),
+    };
+    let (text, usage) = complete_text(app, &spec, provider, req, CancellationToken::new()).await?;
+    record_side_usage(app, session, &spec, &model, &usage, kind);
+    Ok(strip_think(&text))
+}
+
+fn message_text(m: &Message) -> String {
+    m.parts.iter().filter_map(|p| if let Part::Text { text } = p { Some(text.as_str()) } else { None }).collect::<Vec<_>>().join("\n")
+}
+
+/// After a turn: one line "where things stand" for the session list (small model, ~1k tokens of input).
+fn spawn_summary(app: Arc<App>, session_id: String) {
+    tokio::spawn(async move {
+        let Ok(session) = app.session(&session_id) else { return };
+        if session.parent_id.is_some() {
+            return;
+        }
+        let Ok(history) = app.store.messages(&session_id) else { return };
+        let history = active_history(history);
+        let last_user = history.iter().rev().find(|m| matches!(m.role, Role::User) && !message_text(m).trim().is_empty() && !message_text(m).trim_start().starts_with('<'));
+        let last_answer = history.iter().rev().find(|m| matches!(m.role, Role::Assistant) && !message_text(m).trim().is_empty());
+        let (Some(u), Some(a)) = (last_user, last_answer) else { return };
+        let input = format!(
+            "<previous-line>{}</previous-line>\n<user-request>\n{}\n</user-request>\n<agent-answer>\n{}\n</agent-answer>",
+            session.summary,
+            fit(&message_text(u), 1500),
+            fit(&message_text(a), 2500)
+        );
+        let system = "You write the status line of a coding chat for a list. One line, at most 14 words: what was done or where things stand, concrete (file/feature names). \
+            Use the language of the user's request. No quotes, no markdown, no trailing period. Reply with the line only.";
+        match side_task(&app, &session, "summary", system, &input, 120).await {
+            Ok(text) => {
+                let line = text.lines().find(|l| !l.trim().is_empty()).unwrap_or("").trim().trim_matches(['"', '\'', '*', '#', ' ', '.']).chars().take(140).collect::<String>();
+                if !line.is_empty() {
+                    let _ = app.modify_session(&session_id, false, |s| s.summary = line);
+                }
+            }
+            Err(e) => tracing::debug!("summary failed: {e:#}"),
+        }
+    });
+}
+
+/// "What does this do?" for a pending approval, in plain words (for phones: approve without reading code).
+pub async fn explain_tool_call(app: &App, session: &Session, tool: &str, title: &str, input: &Value, diff: Option<&str>, lang: &str) -> Result<String> {
+    let language = if lang.starts_with("de") { "German" } else { "English" };
+    let system = format!(
+        "You explain a pending action of an AI coding agent to the user who has to approve it. Answer in {language}, plain words, at most 3 short sentences: \
+         what it does, and whether anything is risky (deletes or overwrites data, network access, secrets, changes outside the project, hard to undo). \
+         If it is harmless, say so. No markdown headings, no code blocks."
+    );
+    let mut body = format!("<tool>{tool}</tool>\n<title>{title}</title>\n<input>\n{}\n</input>", clip(&input.to_string(), 3000));
+    if let Some(d) = diff {
+        body.push_str(&format!("\n<diff>\n{}\n</diff>", clip(d, 3000)));
+    }
+    side_task(app, session, "explain", &system, &body, 300).await
+}
+
+/// Turn a chat into the instructions of a repeatable automation: (name, instructions in Markdown).
+/// Works with a small model: the transcript is cut to its context window.
+pub async fn draft_job(app: &App, session: &Session) -> Result<(String, String)> {
+    let history = active_history(app.store.messages(&session.id)?);
+    let transcript = transcript_of(&history);
+    if transcript.trim().is_empty() {
+        bail!("the session has no messages yet");
+    }
+    let system = "You turn a finished coding-assistant conversation into instructions for an AUTOMATION that repeats the useful work on a schedule, without a human in the loop. \
+        Reply in exactly this format. First line: NAME: <at most 5 words>. Then the instructions in Markdown with the headings '## Goal', '## Steps' (numbered), '## Result' and '## Limits'. \
+        Write them standalone: never refer to 'the conversation' or 'above'; name concrete paths, commands and checks that were used. \
+        Use the language of the user's messages. Keep it under 300 words.";
+    let text = side_task(app, session, "job-draft", system, &format!("<conversation>\n{transcript}\n</conversation>"), 1200).await?;
+    let mut lines = text.lines().skip_while(|l| l.trim().is_empty());
+    let first = lines.next().unwrap_or("");
+    let (name, body) = match first.trim().strip_prefix("NAME:").or_else(|| first.trim().strip_prefix("Name:")) {
+        Some(n) => (n.trim().trim_matches(['"', '*', '#', ' ']).to_string(), lines.collect::<Vec<_>>().join("\n")),
+        None => (String::new(), text.clone()),
+    };
+    let body = body.trim().to_string();
+    if body.is_empty() {
+        bail!("the model returned no instructions");
+    }
+    let name = if name.is_empty() { session.title.clone() } else { name };
+    let name: String = if name.trim().is_empty() { "Automation".into() } else { name.chars().take(60).collect() };
+    Ok((name.clone(), format!("# {name}\n\n{body}\n")))
+}
+
 fn maybe_generate_title(app: Arc<App>, session_id: &str, text: &str) {
     let Ok(session) = app.session(session_id) else { return };
     if session.parent_id.is_some() || !session.title.is_empty() {
@@ -1523,6 +1674,19 @@ async fn compact_inner(app: Arc<App>, session_id: &str, cancel: CancellationToke
 mod tests {
     use super::*;
 
+    #[test]
+    fn fit_keeps_head_and_tail_within_budget() {
+        let text = format!("{}{}{}", "A".repeat(5000), "M".repeat(5000), "Z".repeat(5000));
+        let out = fit(&text, 3000);
+        assert!(out.len() <= 3100, "{}", out.len());
+        assert!(out.starts_with("AAAA") && out.ends_with("ZZZZ") && out.contains('…'));
+        // Multi-byte text is cut on character boundaries.
+        let de = "äöüß".repeat(2000);
+        assert!(fit(&de, 1000).is_char_boundary(0));
+        assert_eq!(fit("short", 100), "short");
+    }
+
+
     #[test]
     fn todo_completion_and_reopening() {
         let before = serde_json::json!([{"content": "A", "status": "in_progress"}, {"content": "B", "status": "completed"}, {"content": "C", "status": "pending"}]);

server/src/store.rs

@@ -157,6 +157,31 @@ impl Store {
                 content BLOB
              );
              CREATE INDEX IF NOT EXISTS checkpoints_session ON checkpoints(session_id, ts);
+             CREATE TABLE IF NOT EXISTS project_approvals (
+                cwd TEXT NOT NULL,
+                key TEXT NOT NULL,
+                created_at INTEGER NOT NULL,
+                PRIMARY KEY (cwd, key)
+             );
+             CREATE TABLE IF NOT EXISTS project_defaults (
+                cwd TEXT PRIMARY KEY,
+                data TEXT NOT NULL
+             );
+             CREATE TABLE IF NOT EXISTS project_checks (
+                cwd TEXT PRIMARY KEY,
+                command TEXT NOT NULL,
+                enabled INTEGER NOT NULL DEFAULT 1
+             );
+             CREATE TABLE IF NOT EXISTS turn_checks (
+                session_id TEXT NOT NULL REFERENCES sessions(id) ON DELETE CASCADE,
+                message_id TEXT NOT NULL,
+                status TEXT NOT NULL,
+                exit_code INTEGER,
+                duration_ms INTEGER NOT NULL DEFAULT 0,
+                output TEXT NOT NULL DEFAULT '',
+                ts INTEGER NOT NULL,
+                PRIMARY KEY (session_id, message_id)
+             );
              CREATE TABLE IF NOT EXISTS session_shares (
                 session_id TEXT NOT NULL REFERENCES sessions(id) ON DELETE CASCADE,
                 user_id TEXT NOT NULL REFERENCES users(id) ON DELETE CASCADE,
@@ -653,6 +678,39 @@ impl Store {
         Ok(json!({"total": total, "by_model": by_model, "by_agent": by_agent, "first": first, "last": last}))
     }
 
+    /// Plan requests booked at 0 (opencode Go reports nothing charged, only `allowance`):
+    /// (row id, ts, "provider/model", usage).
+    pub fn plan_requests_without_cost(&self) -> Result<Vec<(i64, i64, String, crate::types::Usage)>> {
+        let conn = self.conn.lock().unwrap();
+        let mut stmt = conn.prepare(
+            "SELECT id, ts, provider || '/' || model, input_tokens, output_tokens, cache_read_tokens, cache_write_tokens, allowance
+             FROM usage WHERE cost = 0 AND allowance > 0",
+        )?;
+        let rows = stmt
+            .query_map([], |r| {
+                Ok((
+                    r.get(0)?,
+                    r.get(1)?,
+                    r.get(2)?,
+                    crate::types::Usage {
+                        input_tokens: r.get::<_, i64>(3)? as u64,
+                        output_tokens: r.get::<_, i64>(4)? as u64,
+                        cache_read_tokens: r.get::<_, i64>(5)? as u64,
+                        cache_write_tokens: r.get::<_, i64>(6)? as u64,
+                        allowance: r.get(7)?,
+                        ..Default::default()
+                    },
+                ))
+            })?
+            .collect::<rusqlite::Result<Vec<_>>>()?;
+        Ok(rows)
+    }
+
+    pub fn set_usage_cost(&self, row: i64, cost: f64) -> Result<()> {
+        self.conn.lock().unwrap().execute("UPDATE usage SET cost = ?2 WHERE id = ?1", params![row, cost])?;
+        Ok(())
+    }
+
     /// Global statistics in [from, to) (ms). `tz_offset_min` shifts day/hour buckets
     /// into the viewer's local time.
     pub fn global_stats(&self, from: i64, to: i64, tz_offset_min: i64, user: Option<&str>) -> Result<Value> {
@@ -1448,6 +1506,114 @@ impl Store {
     }
 }
 
+// --- project overview ------------------------------------------------------------------------
+
+impl Store {
+    /// Per chat: files the agent changed, the latest check result and the cost.
+    pub fn project_overview(&self, session_ids: &[String]) -> Result<Value> {
+        let conn = self.conn.lock().unwrap();
+        let mut out = serde_json::Map::new();
+        for id in session_ids {
+            let files: i64 = conn.query_row("SELECT COUNT(DISTINCT path) FROM checkpoints WHERE session_id = ?1", params![id], |r| r.get(0))?;
+            let check: Option<String> = conn
+                .query_row("SELECT status FROM turn_checks WHERE session_id = ?1 ORDER BY ts DESC LIMIT 1", params![id], |r| r.get(0))
+                .optional()?;
+            let failed: i64 = conn.query_row("SELECT COUNT(*) FROM turn_checks WHERE session_id = ?1 AND status IN ('failed','timeout')", params![id], |r| r.get(0))?;
+            let cost: Option<f64> = conn.query_row("SELECT SUM(cost) FROM usage WHERE root_session_id = ?1", params![id], |r| r.get(0))?;
+            out.insert(id.clone(), json!({"files": files, "check": check, "checks_failed": failed, "cost": cost.unwrap_or(0.0)}));
+        }
+        Ok(Value::Object(out))
+    }
+}
+
+// --- defaults of new chats in a project -------------------------------------------------------
+
+impl Store {
+    /// {model, agent, permission_mode, color, instructions, folder} new chats of the folder start with.
+    pub fn project_defaults(&self, cwd: &str) -> Result<Option<Value>> {
+        let conn = self.conn.lock().unwrap();
+        let v: Option<String> = conn.query_row("SELECT data FROM project_defaults WHERE cwd = ?1", params![cwd], |r| r.get(0)).optional()?;
+        Ok(v.and_then(|v| serde_json::from_str(&v).ok()))
+    }
+
+    pub fn set_project_defaults(&self, cwd: &str, data: Option<&Value>) -> Result<()> {
+        let conn = self.conn.lock().unwrap();
+        match data {
+            Some(d) => conn.execute("INSERT INTO project_defaults (cwd, data) VALUES (?1, ?2) ON CONFLICT(cwd) DO UPDATE SET data = ?2", params![cwd, d.to_string()])?,
+            None => conn.execute("DELETE FROM project_defaults WHERE cwd = ?1", params![cwd])?,
+        };
+        Ok(())
+    }
+}
+
+// --- checks after a turn ------------------------------------------------------------------
+
+impl Store {
+    /// (command, enabled) of a project folder.
+    pub fn project_check(&self, cwd: &str) -> Result<Option<(String, bool)>> {
+        let conn = self.conn.lock().unwrap();
+        Ok(conn.query_row("SELECT command, enabled FROM project_checks WHERE cwd = ?1", params![cwd], |r| Ok((r.get::<_, String>(0)?, r.get::<_, i64>(1)? != 0))).optional()?)
+    }
+
+    pub fn set_project_check(&self, cwd: &str, command: &str, enabled: bool) -> Result<()> {
+        let conn = self.conn.lock().unwrap();
+        if command.trim().is_empty() {
+            conn.execute("DELETE FROM project_checks WHERE cwd = ?1", params![cwd])?;
+        } else {
+            conn.execute(
+                "INSERT INTO project_checks (cwd, command, enabled) VALUES (?1, ?2, ?3) ON CONFLICT(cwd) DO UPDATE SET command = ?2, enabled = ?3",
+                params![cwd, command.trim(), enabled as i64],
+            )?;
+        }
+        Ok(())
+    }
+
+    pub fn set_turn_check(&self, session_id: &str, message_id: &str, status: &str, exit_code: Option<i32>, duration_ms: u64, output: &str) -> Result<()> {
+        let conn = self.conn.lock().unwrap();
+        conn.execute(
+            "INSERT INTO turn_checks (session_id, message_id, status, exit_code, duration_ms, output, ts) VALUES (?1,?2,?3,?4,?5,?6,?7)
+             ON CONFLICT(session_id, message_id) DO UPDATE SET status = ?3, exit_code = ?4, duration_ms = ?5, output = ?6, ts = ?7",
+            params![session_id, message_id, status, exit_code, duration_ms as i64, output, now_ms()],
+        )?;
+        Ok(())
+    }
+
+    pub fn turn_checks(&self, session_id: &str) -> Result<Vec<Value>> {
+        let conn = self.conn.lock().unwrap();
+        let mut stmt = conn.prepare("SELECT message_id, status, exit_code, duration_ms, output FROM turn_checks WHERE session_id = ?1 ORDER BY ts DESC LIMIT 300")?;
+        let rows = stmt
+            .query_map(params![session_id], |r| {
+                Ok(json!({"message_id": r.get::<_, String>(0)?, "status": r.get::<_, String>(1)?, "exit_code": r.get::<_, Option<i32>>(2)?, "duration_ms": r.get::<_, i64>(3)?, "output": r.get::<_, String>(4)?}))
+            })?
+            .collect::<rusqlite::Result<Vec<_>>>()?;
+        Ok(rows)
+    }
+}
+
+// --- project-wide approvals ---------------------------------------------------------
+
+impl Store {
+    /// Approvals ("bash:<prefix>" or a tool name) remembered for a project folder.
+    pub fn project_approvals(&self, cwd: &str) -> Result<Vec<String>> {
+        let conn = self.conn.lock().unwrap();
+        let mut stmt = conn.prepare("SELECT key FROM project_approvals WHERE cwd = ?1 ORDER BY key")?;
+        let rows = stmt.query_map(params![cwd], |r| r.get::<_, String>(0))?.collect::<rusqlite::Result<Vec<_>>>()?;
+        Ok(rows)
+    }
+
+    pub fn add_project_approval(&self, cwd: &str, key: &str) -> Result<()> {
+        let conn = self.conn.lock().unwrap();
+        conn.execute("INSERT OR IGNORE INTO project_approvals (cwd, key, created_at) VALUES (?1, ?2, ?3)", params![cwd, key, now_ms()])?;
+        Ok(())
+    }
+
+    pub fn delete_project_approval(&self, cwd: &str, key: &str) -> Result<()> {
+        let conn = self.conn.lock().unwrap();
+        conn.execute("DELETE FROM project_approvals WHERE cwd = ?1 AND key = ?2", params![cwd, key])?;
+        Ok(())
+    }
+}
+
 // --- file checkpoints ------------------------------------------------------------
 
 impl Store {
@@ -1463,13 +1629,18 @@ impl Store {
 
     /// Per path, the oldest snapshot taken at or after `since` (ms): the state to restore.
     pub fn checkpoints_since(&self, session_id: &str, since: i64) -> Result<Vec<(String, Option<Vec<u8>>)>> {
+        self.checkpoints_between(session_id, since, i64::MAX)
+    }
+
+    /// Per file the state before its first change in the time range [since, until).
+    pub fn checkpoints_between(&self, session_id: &str, since: i64, until: i64) -> Result<Vec<(String, Option<Vec<u8>>)>> {
         let conn = self.conn.lock().unwrap();
         let mut stmt = conn.prepare(
-            "SELECT path, existed, content FROM checkpoints c WHERE session_id = ?1 AND ts >= ?2
+            "SELECT path, existed, content FROM checkpoints c WHERE session_id = ?1 AND ts >= ?2 AND ts < ?3
-             AND id = (SELECT MIN(id) FROM checkpoints WHERE session_id = ?1 AND ts >= ?2 AND path = c.path)",
+             AND id = (SELECT MIN(id) FROM checkpoints WHERE session_id = ?1 AND ts >= ?2 AND ts < ?3 AND path = c.path)",
         )?;
         let rows = stmt
-            .query_map(params![session_id, since], |r| {
+            .query_map(params![session_id, since, until], |r| {
                 let existed: i64 = r.get(1)?;
                 Ok((r.get::<_, String>(0)?, if existed != 0 { r.get::<_, Option<Vec<u8>>>(2)? } else { None }))
             })?

server/src/telegram.rs

@@ -541,6 +541,8 @@ async fn new_session(app: &Arc<App>, u: &User, bot: &Bot, chat: i64, arg: &str,
         instructions: String::new(),
         // Started from Telegram: keeps reporting there after switching to another chat.
         telegram_quiet: false,
+        summary: String::new(),
+        color: None,
     })?;
     update(app, &u.id, |st| st.session = Some(s.id.clone()));
     bot.send(chat, &format!("{} <b>{}</b> · {} · {}", tr(de, "Neue Sitzung", "New session"), esc(&s.cwd), esc(&s.agent), esc(&s.model)), None).await?;

server/src/tools/mod.rs

@@ -177,6 +177,7 @@ pub fn builtin_tools() -> Vec<Arc<dyn Tool>> {
         Arc::new(craft::ImageCompare),
         Arc::new(crate::prompts::SkillTool),
         Arc::new(crate::images::GenerateImage),
+        Arc::new(crate::mesh3d::Generate3d),
         Arc::new(crate::reverse::BinaryInfo),
         Arc::new(crate::reverse::Decompile),
     ]

web/public/push-sw.mjs

@@ -7,6 +7,12 @@ self.addEventListener("push", (event) => {
     data = { body: event.data ? event.data.text() : "" };
   }
   const title = data.title || "CodeCraft";
+  const de = String((self.navigator && self.navigator.language) || "").toLowerCase().startsWith("de");
+  // Approvals can be answered right from the notification.
+  const actions = data.kind === "permission" && data.permission_id ? [
+    { action: "allow", title: de ? "Erlauben" : "Allow" },
+    { action: "reject", title: de ? "Ablehnen" : "Reject" },
+  ] : [];
   const prefix = { permission: "🔐 ", question: "❓ ", done: "✅ " }[data.kind] || "";
   event.waitUntil(
     self.registration.showNotification(prefix + title, {
@@ -15,13 +21,40 @@ self.addEventListener("push", (event) => {
       renotify: true,
       icon: "/icon-192.png",
       badge: "/icon-192.png",
-      data: { url: data.url || "/" },
+      actions,
+      requireInteraction: data.kind === "permission",
+      data: { url: data.url || "/", permission_id: data.permission_id || null },
     }),
   );
 });
 
 self.addEventListener("notificationclick", (event) => {
   event.notification.close();
+  const info = event.notification.data || {};
+  if ((event.action === "allow" || event.action === "reject") && info.permission_id) {
+    const de = String((self.navigator && self.navigator.language) || "").toLowerCase().startsWith("de");
+    const target = new URL(info.url || "/", self.location.origin).href;
+    event.waitUntil(
+      fetch("/api/permissions/" + encodeURIComponent(info.permission_id), {
+        method: "POST",
+        credentials: "same-origin",
+        headers: { "Content-Type": "application/json" },
+        body: JSON.stringify({ reply: event.action === "allow" ? "once" : "reject" }),
+      })
+        .then((r) => {
+          if (!r.ok) throw new Error(String(r.status));
+          // Short confirmation, so the tap does not feel lost.
+          return self.registration.showNotification(event.action === "allow" ? (de ? "Erlaubt" : "Allowed") : (de ? "Abgelehnt" : "Rejected"), {
+            tag: "perm-" + info.permission_id,
+            icon: "/icon-192.png",
+            silent: true,
+            data: { url: info.url },
+          }).then(() => new Promise((res) => setTimeout(res, 2500))).then(() => self.registration.getNotifications({ tag: "perm-" + info.permission_id })).then((l) => l.forEach((n) => n.close()));
+        })
+        .catch(() => self.clients.openWindow(target)), // expired, answered elsewhere or signed out: open the app
+    );
+    return;
+  }
   const url = new URL((event.notification.data && event.notification.data.url) || "/", self.location.origin).href;
   event.waitUntil(
     self.clients.matchAll({ type: "window", includeUncontrolled: true }).then((list) => {

web/src/App.tsx

@@ -4,6 +4,8 @@ import { useT } from "./i18n";
 import { navigate, useRoute, closePane, MAX_PANES } from "./router";
 import { applyEvent, loadSessions, resync, setState } from "./store";
 import type { Info } from "./types";
+import { ImageViewer } from "./components/ImageViewer";
+import { ProjectPage } from "./components/ProjectPage";
 import { Sidebar } from "./components/Sidebar";
 import { Login } from "./components/Login";
 import { ChatView } from "./components/ChatView";
@@ -94,6 +96,7 @@ export function App() {
       </div>
     );
   else if (section === "settings") content = <Settings tab={arg} onMenu={() => setMenuOpen(true)} />;
+  else if (section === "p" && arg) content = <ProjectPage key={arg} cwd={decodeURIComponent(arg)} onMenu={() => setMenuOpen(true)} />;
   else if (section === "stats") content = <Stats onMenu={() => setMenuOpen(true)} />;
   else if (section === "images") content = <Images onMenu={() => setMenuOpen(true)} />;
   else if (section === "jobs" && arg) content = <JobEditor key={arg} id={arg} onMenu={() => setMenuOpen(true)} />;
@@ -119,6 +122,7 @@ export function App() {
       <main className="main">{content}</main>
       <WhatsNew version={info.version} />
       <Palette />
+      <ImageViewer />
       {shared && <ShareTarget shared={shared} onClose={() => setShared(null)} />}
       <DialogHost />
     </div>

web/src/components/ChatView.tsx

@@ -2,11 +2,11 @@ import { takePrefill } from "../share";
 import { Icon } from "./Icon";
 import { FileChip, FileFigure, fileType, imageSize, imageSrc } from "./FileFigure";
 import { memo, useCallback, useEffect, useLayoutEffect, useMemo, useRef, useState, type ReactNode, type RefObject } from "react";
-import { del, get, patch, post } from "../api";
+import { del, get, patch, post, put } from "../api";
 import { useFetch, useModels } from "../hooks";
-import { fmtCompact, fmtCost, fmtNumber, fmtPercent, useT, type Key } from "../i18n";
+import { fmtCompact, fmtCost, fmtMsgTime, fmtNumber, fmtPercent, useT, type Key } from "../i18n";
 import { navigate } from "../router";
-import { dismissError, getState, loadAround, loadOlder, loadSession, loadSessions, useStore } from "../store";
+import { dismissError, getState, loadAround, loadChecks, loadOlder, loadSession, loadSessions, useStore } from "../store";
 import type { Aggregate, ImageData, Message, Part, Session, Todo } from "../types";
 import { ActivityLine, Dots, Spinner, ThinkIcon, WorkBar } from "./Activity";
 import { useReasoningMode, useTodosCollapsed } from "../prefs";
@@ -26,6 +26,13 @@ import { ShellsChip } from "./ShellsPanel";
 import { TodoList, ToolCard } from "./ToolCard";
 import { confirmDialog, promptDialog, toast } from "../dialogs";
 import { ChatTabBar, ChatTabPanes, useChatTabs } from "./ChatTabs";
+import { ColorSwatches } from "./ColorSwatches";
+import { ProjectPermissions } from "./ProjectPermissions";
+import { OutboxBar } from "./OutboxBar";
+import { addToOutbox, isOffline } from "../outbox";
+import { TurnCheck } from "./TurnCheck";
+import { TurnChanges } from "./TurnChanges";
+import { ChatCtx, MessageMenu } from "./MessageMenu";
 import { MediaGallery } from "./MediaGallery";
 
 type ToolResult = Extract<Part, { type: "tool_result" }>;
@@ -245,8 +252,10 @@ const MessageList = memo(function MessageList({
   baseDir,
   onRewind,
   highlight,
+  currency,
 }: {
   messages: Message[];
+  currency: string;
   results: Map<string, ToolResult>;
   busy: boolean;
   canEdit: boolean;
@@ -280,13 +289,71 @@ const MessageList = memo(function MessageList({
         ));
         // Finished turns with tool steps fold into one line (the answer stays visible).
         const steps = b.messages.flatMap((m) => m.parts.filter((p) => p.type === "tool_call")) as ToolCall[];
-        if (i === lastWork || steps.length < 2) return <div key={key}>{items}</div>;
+        const usage = !(busy && i === lastWork) && <TurnUsage messages={b.messages} currency={currency} />;
-        return <WorkBlock key={key} messages={b.messages} steps={steps} open={!!highlight && b.messages.some((m) => m.id === highlight)} baseDir={baseDir}>{items}</WorkBlock>;
+        // Files the agent wrote or edited in this turn: diffs and "roll back" (not while it is still working).
+        const changed = new Set(steps.filter((c) => (c.name === "write" || c.name === "edit") && typeof c.input?.path === "string").map((c) => c.input.path as string));
+        const lastAnswer = [...b.messages].reverse().find((m) => m.role === "assistant");
+        const checkBadge = lastAnswer && !(busy && i === lastWork) && <TurnCheck sessionId={sessionId} messageId={lastAnswer.id} canSend={canEdit} />;
+        const prev = blocks[i - 1];
+        const changes = changed.size > 0 && !(busy && i === lastWork) && (
+          <TurnChanges
+            sessionId={sessionId}
+            fromId={b.messages[0].id}
+            untilId={blocks[i + 1]?.messages[0].id}
+            fileCount={changed.size}
+            userMessage={canEdit && prev?.kind === "user" ? prev.messages[0] : undefined}
+            onRewind={onRewind}
+          />
+        );
+        if (i === lastWork || steps.length < 2)
+          return (
+            <div key={key}>
+              {items}
+              {usage}
+              {checkBadge}
+              {changes}
+            </div>
+          );
+        return (
+          <div key={key}>
+            <WorkBlock messages={b.messages} steps={steps} open={!!highlight && b.messages.some((m) => m.id === highlight)} baseDir={baseDir}>
+              {items}
+            </WorkBlock>
+            {usage}
+            {checkBadge}
+            {changes}
+          </div>
+        );
       })}
     </>
   );
 });
 
+/** Tokens (in/out) and cost of one answer: all requests of the turn together. */
+function TurnUsage({ messages, currency }: { messages: Message[]; currency: string }) {
+  const t = useT();
+  let inp = 0;
+  let out = 0;
+  let cost = 0;
+  let requests = 0;
+  for (const m of messages) {
+    const u = m.role === "assistant" ? m.usage : undefined;
+    if (!u) continue;
+    requests++;
+    inp += u.input_tokens + u.cache_read_tokens + u.cache_write_tokens;
+    out += u.output_tokens;
+    cost += u.cost ?? 0;
+  }
+  if (!requests) return null;
+  return (
+    <div className="turn-usage" title={t("chat.turnUsageHint", { n: requests })}>
+      {fmtCompact(inp)}
+      <Icon name="arrow-up" className="tiny" /> {fmtCompact(out)}
+      <Icon name="arrow-down" className="tiny" /> · {fmtCost(cost, currency)}
+    </div>
+  );
+}
+
 /** A finished turn: "42 steps · 3 files" and the answer; the steps on click. */
 function WorkBlock({ messages, steps, open: forced, baseDir, children }: { messages: Message[]; steps: ToolCall[]; open: boolean; baseDir: string; children: ReactNode }) {
   const t = useT();
@@ -314,14 +381,29 @@ function WorkBlock({ messages, steps, open: forced, baseDir, children }: { messa
       </button>
       {answerText && (
         <>
+          {answer && <MessageMenu messageId={answer.id} text={answerText} forkable={!answer.parts.some((p) => p.type === "tool_call")} />}
           <Markdown text={answerText} baseDir={baseDir} />
           <ImageRefs text={answerText} baseDir={baseDir} />
+          {answer && <MsgTime ms={answer.created_at} />}
         </>
       )}
     </div>
   );
 }
 
+/** Text parts of a message. */
+const textOfMessage = (m: Message) => (m.parts.filter((p) => p.type === "text") as { text: string }[]).map((p) => p.text).join("\n\n");
+
+/** Small date/time line under a message. */
+function MsgTime({ ms }: { ms: number }) {
+  if (!ms) return null;
+  return (
+    <time className="msg-time" dateTime={new Date(ms).toISOString()} title={new Date(ms).toLocaleString()}>
+      {fmtMsgTime(ms)}
+    </time>
+  );
+}
+
 /** An assistant message, or a user message that only carries tool results / harness notes. */
 const AssistantOrNote = memo(function AssistantOrNote({
   m,
@@ -342,7 +424,9 @@ const AssistantOrNote = memo(function AssistantOrNote({
   if (m.role === "assistant") {
     return (
       <div className={cls} data-mid={m.id}>
+        <MessageMenu messageId={m.id} text={textOfMessage(m)} forkable={!m.parts.some((p) => p.type === "tool_call")} />
         <AssistantParts parts={m.parts} results={results} running={busy} live={false} baseDir={baseDir} />
+        <MsgTime ms={m.created_at} />
         {regenerate && <RegenerateButton sessionId={regenerate.sessionId} messageId={m.id} model={regenerate.model} />}
       </div>
     );
@@ -386,15 +470,10 @@ const MessageItem = memo(function MessageItem({ m, canEdit, onRewind, highlight
       {background.map((p, i) => (
         <HarnessMessage key={i} text={p.text} />
       ))}
+      <MessageMenu messageId={m.id} text={texts.map((p) => p.text).join("\n\n")} forkable onRewind={canEdit ? () => onRewind(m) : undefined} />
       <div className="msg-user">
-        {canEdit && (
-          <div className="msg-actions">
-            <button className="small ghost" onClick={() => onRewind(m)} title={t("chat.rewind")}>
-              <Icon name="edit" />
-            </button>
-          </div>
-        )}
         <UserText text={texts.map((p) => p.text).join("\n\n")} />
+        <MsgTime ms={m.created_at} />
         {imgs.length > 0 && (
           <div className="user-files">
             {imgs.map((p, i) => (
@@ -475,6 +554,8 @@ export function ChatView({ sessionId, onMenu, onClosePane }: { sessionId: string
   // The Telegram switch in the ⋯ menu only matters with a paired bot.
   const telegramPaired = useFetch<{ paired: boolean }>("/account/telegram").data?.paired ?? false;
   const [editingInstructions, setEditingInstructions] = useState(false);
+  const [showApprovals, setShowApprovals] = useState(false);
+  const [planning, setPlanning] = useState(false);
   const models = useModels();
   const [loadError, setLoadError] = useState<string>();
   const [text, setText] = useState(() => takePrefill(sessionId) ?? "");
@@ -496,11 +577,25 @@ export function ChatView({ sessionId, onMenu, onClosePane }: { sessionId: string
     if (el) el.scrollTo({ top: el.scrollHeight, behavior: "smooth" });
   };
 
+  // Scrolled away from the top: the jump buttons show up.
+  const [scrolled, setScrolled] = useState(false);
+  /** Scroll to the closest own message above the visible area (long chats on a phone). */
+  const jumpPrevOwn = () => {
+    const el = scrollRef.current;
+    if (!el) return;
+    const top = el.getBoundingClientRect().top;
+    const above = [...el.querySelectorAll<HTMLElement>(".msg-user")].filter((n) => n.getBoundingClientRect().top < top - 12);
+    const target = above[above.length - 1];
+    if (target) target.scrollIntoView({ behavior: "smooth", block: "start" });
+    else el.scrollTo({ top: 0, behavior: "smooth" });
+  };
+
   // Every chat starts following.
   useEffect(() => follow(true), [sessionId]);
 
   useEffect(() => {
     loadSession(sessionId).catch((e) => setLoadError(e.message));
+    void loadChecks(sessionId);
   }, [sessionId]);
 
   const permissions = allPermissions.filter((p) => p.session_id === sessionId || p.root_session_id === sessionId);
@@ -592,7 +687,12 @@ export function ChatView({ sessionId, onMenu, onClosePane }: { sessionId: string
       setText("");
       follow(true);
     } catch (e: any) {
-      toast(e.message);
+      // No connection: keep the text on this device and send it when the server is reachable again.
+      if (isOffline(e) && txt && images.length === 0) {
+        addToOutbox(sessionId, txt, effort || undefined);
+        setText("");
+        toast(t("outbox.saved"));
+      } else toast(e.message);
     }
   };
 
@@ -607,6 +707,46 @@ export function ChatView({ sessionId, onMenu, onClosePane }: { sessionId: string
     setText(m.parts.map((p) => (p.type === "text" ? p.text : "")).join(""));
   };
 
+  /** New chats in this project start like this one (model, mode, colour, instructions, folder). */
+  const saveDefaults = async (remove: boolean) => {
+    try {
+      if (remove) await del(`/sessions/${sessionId}/project-defaults`);
+      else await put(`/sessions/${sessionId}/project-defaults`, {});
+      toast(t(remove ? "projectDefaults.removed" : "projectDefaults.saved"), "success");
+    } catch (e: any) {
+      toast(e.message);
+    }
+  };
+
+  /** The project's check command (tests, build …), run after every turn that changed files. */
+  const editCheck = async () => {
+    try {
+      const cur = await get<{ command: string; enabled: boolean }>(`/sessions/${sessionId}/check`);
+      const cmd = await promptDialog({ title: t("check.title"), message: t("check.hint", { project: session.cwd }), defaultValue: cur.command, placeholder: "cargo test", confirmLabel: t("common.save") });
+      if (cmd === null) return;
+      await put(`/sessions/${sessionId}/check`, { command: cmd.trim(), enabled: cmd.trim() !== "" });
+      toast(cmd.trim() ? t("check.saved") : t("check.removed"), "success");
+    } catch (e: any) {
+      toast(e.message);
+    }
+  };
+
+  /** Draft an automation from this chat (small model), create it switched off and open its editor. */
+  const planJob = async () => {
+    if (planning) return;
+    setPlanning(true);
+    toast(t("job.drafting"));
+    try {
+      const d = await post<{ name: string; prompt: string; cwd: string; agent: string }>(`/sessions/${sessionId}/job-draft`, {});
+      const job = await post<{ id: string }>("/jobs/create", { cwd: d.cwd, name: d.name, prompt: d.prompt, agent: d.agent === "plan" ? undefined : d.agent });
+      navigate(`/jobs/${job.id}`);
+    } catch (e: any) {
+      toast(e.message);
+    } finally {
+      setPlanning(false);
+    }
+  };
+
   const remove = async () => {
     if (!(await confirmDialog({ message: t("chat.deleteConfirm"), danger: true, confirmLabel: t("common.delete") }))) return;
     await del(`/sessions/${sessionId}`);
@@ -629,8 +769,8 @@ export function ChatView({ sessionId, onMenu, onClosePane }: { sessionId: string
   const pendingTool = busy && pendingCall ? { name: pendingCall.name, input: pendingCall.input, since: lastMsg.created_at } : undefined;
 
   return (
-    <>
+    <ChatCtx.Provider value={{ sessionId, canFork: !session.parent_id && !readOnly && !busy, canReply: !readOnly }}>
-      <div className="topbar">
+      <div className="topbar" data-color={session.color}>
         <button className="ghost menu-btn" onClick={onMenu} aria-label={t("nav.menu")}>
           <Icon name="menu" />
         </button>
@@ -677,7 +817,7 @@ export function ChatView({ sessionId, onMenu, onClosePane }: { sessionId: string
         {!readOnly && (
           <>
             {!session.parent_id && (
-              <button className="small ghost" onClick={() => setSharing(true)} title={t("share.title")}>
+              <button className="small ghost hide-mobile" onClick={() => setSharing(true)} title={t("share.title")}>
                 <Icon name="share" />
               </button>
             )}
@@ -691,11 +831,11 @@ export function ChatView({ sessionId, onMenu, onClosePane }: { sessionId: string
             <button className={`small ghost ${searching ? "active" : ""}`} onClick={() => setSearching(!searching)} title={t("chat.search")} aria-label={t("chat.search")}>
               <Icon name="search" />
             </button>
-            <button className="small ghost" onClick={tabs.openFiles} title={t("files.newTab")}>
+            <button className="small ghost hide-mobile" onClick={tabs.openFiles} title={t("files.newTab")}>
               <Icon name="folder" />
             </button>
             {!session.parent_id && (
-              <button className="small ghost" onClick={forkSession} disabled={busy} title={t("chat.fork")}>
+              <button className="small ghost hide-mobile" onClick={forkSession} disabled={busy} title={t("chat.fork")}>
                 <Icon name="fork" />
               </button>
             )}
@@ -704,6 +844,28 @@ export function ChatView({ sessionId, onMenu, onClosePane }: { sessionId: string
                 <Icon name="more" />
               </summary>
               <div className="menu-pop-body">
+                {/* The buttons that do not fit into the narrow bar. */}
+                {!session.parent_id && (
+                  <a href="#" className="mobile-only" onClick={(e) => (e.preventDefault(), (e.currentTarget.closest("details") as HTMLDetailsElement).open = false, setSharing(true))}>
+                    <Icon name="share" /> {t("share.title")}
+                  </a>
+                )}
+                <a href="#" className="mobile-only" onClick={(e) => (e.preventDefault(), (e.currentTarget.closest("details") as HTMLDetailsElement).open = false, tabs.openFiles())}>
+                  <Icon name="folder" /> {t("files.newTab")}
+                </a>
+                {!session.parent_id && !busy && (
+                  <a href="#" className="mobile-only" onClick={(e) => (e.preventDefault(), (e.currentTarget.closest("details") as HTMLDetailsElement).open = false, forkSession())}>
+                    <Icon name="fork" /> {t("chat.fork")}
+                  </a>
+                )}
+                {!busy && (
+                  <a href="#" className="mobile-only" onClick={(e) => (e.preventDefault(), (e.currentTarget.closest("details") as HTMLDetailsElement).open = false, post(`/sessions/${sessionId}/compact`).catch((err) => toast(err.message)))}>
+                    <Icon name="compact" /> {t("command.compact")}
+                  </a>
+                )}
+                <a href="#" className="mobile-only danger" onClick={(e) => (e.preventDefault(), (e.currentTarget.closest("details") as HTMLDetailsElement).open = false, remove())}>
+                  <Icon name="trash" /> {t("chat.delete")}
+                </a>
                 <a
                   href="#"
                   onClick={(e) => {
@@ -714,6 +876,22 @@ export function ChatView({ sessionId, onMenu, onClosePane }: { sessionId: string
                 >
                   <Icon name="edit" /> {t("instructions.title")}
                 </a>
+                <ColorSwatches value={session.color} onChange={(color) => void update({ color })} />
+                <a href="#" onClick={(e) => (e.preventDefault(), ((e.currentTarget.closest("details") as HTMLDetailsElement).open = false), void planJob())} title={t("job.planHint")}>
+                  <Icon name="clock" /> {t("job.plan")}
+                </a>
+                <a href="#" title={t("projectDefaults.hint")} onClick={(e) => (e.preventDefault(), ((e.currentTarget.closest("details") as HTMLDetailsElement).open = false), void saveDefaults(false))}>
+                  <Icon name="template" /> {t("projectDefaults.save")}
+                </a>
+                <a href="#" onClick={(e) => (e.preventDefault(), ((e.currentTarget.closest("details") as HTMLDetailsElement).open = false), void saveDefaults(true))}>
+                  <Icon name="undo" /> {t("projectDefaults.remove")}
+                </a>
+                <a href="#" onClick={(e) => (e.preventDefault(), ((e.currentTarget.closest("details") as HTMLDetailsElement).open = false), void editCheck())}>
+                  <Icon name="check" /> {t("check.menu")}
+                </a>
+                <a href="#" onClick={(e) => (e.preventDefault(), ((e.currentTarget.closest("details") as HTMLDetailsElement).open = false), setShowApprovals(true))}>
+                  <Icon name="lock" /> {t("permProject.menu")}
+                </a>
                 <a
                   href="#"
                   onClick={(e) => {
@@ -763,10 +941,10 @@ export function ChatView({ sessionId, onMenu, onClosePane }: { sessionId: string
                 )}
               </div>
             </details>
-            <button className="small ghost" onClick={() => post(`/sessions/${sessionId}/compact`).catch((e) => toast(e.message))} disabled={busy} title={t("command.compact")}>
+            <button className="small ghost hide-mobile" onClick={() => post(`/sessions/${sessionId}/compact`).catch((e) => toast(e.message))} disabled={busy} title={t("command.compact")}>
               <Icon name="compact" />
             </button>
-            <button className="small ghost danger" onClick={remove} title={t("chat.delete")}>
+            <button className="small ghost danger hide-mobile" onClick={remove} title={t("chat.delete")}>
               <Icon name="trash" />
             </button>
           </>
@@ -790,7 +968,7 @@ export function ChatView({ sessionId, onMenu, onClosePane }: { sessionId: string
       {searching && <ChatSearch sessionId={sessionId} onPick={(id) => void jumpTo(id)} onClose={() => setSearching(false)} />}
       <ChatTabBar state={tabs} />
       <ChatTabPanes state={tabs} />
-      <div className="chat-pane" hidden={tabs.tab !== "chat"}>
+      <div className="chat-pane" data-color={session.color} data-session-id={sessionId} hidden={tabs.tab !== "chat"}>
       {session.agent === "craft" && !session.parent_id && <PhaseBar phase={session.phase} deep={session.clean_room === false} />}
       <WorkBar active={busy && permissions.length === 0 && questions.length === 0} />
       <div
@@ -805,6 +983,7 @@ export function ChatView({ sessionId, onMenu, onClosePane }: { sessionId: string
           // … scrolling back to the very end resumes it.
           else if (fromBottom < 4 && !stick.current && el.scrollTop > last.top) follow(true);
           lastScroll.current = { top: el.scrollTop, height: el.scrollHeight };
+          setScrolled(el.scrollTop > 240);
         }}
         onWheel={(e) => {
           if (e.deltaY < 0 && stick.current) follow(false);
@@ -825,6 +1004,7 @@ export function ChatView({ sessionId, onMenu, onClosePane }: { sessionId: string
             baseDir={session.cwd}
             onRewind={onRewind}
             highlight={highlight}
+            currency={stats?.currency ?? "USD"}
           />
           {win?.newer && (
             <button className="back-to-latest" onClick={() => void showLatest()}>
@@ -883,18 +1063,23 @@ export function ChatView({ sessionId, onMenu, onClosePane }: { sessionId: string
             </div>
           )}
         </div>
-        {!following && (
+        {(!following || scrolled) && (
           <div className="jump-latest">
-            <button className="primary" onClick={jumpToLatest} title={t("chat.jumpLatest")} aria-label={t("chat.jumpLatest")}>
+            <button onClick={jumpPrevOwn} title={t("chat.jumpPrevOwn")} aria-label={t("chat.jumpPrevOwn")}>
-              <Icon name="arrow-down" />
+              <Icon name="arrow-up" />
             </button>
+            {!following && <button className="primary" onClick={jumpToLatest} title={t("chat.jumpLatest")} aria-label={t("chat.jumpLatest")}>
+              <Icon name="arrow-down" />
+            </button>}
           </div>
         )}
       </div>
+      {showApprovals && <ProjectPermissions sessionId={sessionId} cwd={session.cwd} onClose={() => setShowApprovals(false)} />}
       {editingInstructions && <InstructionsDialog sessionId={sessionId} value={session.instructions ?? ""} onClose={() => setEditingInstructions(false)} />}
       {editingTitle && <RenameDialog sessionId={sessionId} title={session.title} onClose={() => setEditingTitle(false)} />}
       {sharing && <ShareDialog sessionId={sessionId} onClose={() => setSharing(false)} />}
       {rewinding && <RewindDialog sessionId={sessionId} messageId={rewinding.id} onDone={rewindDone} onClose={() => setRewinding(undefined)} />}
+      {!readOnly && <OutboxBar sessionId={sessionId} />}
       {!readOnly && <QueueList sessionId={sessionId} busy={busy} />}
       {readOnly ? (
         <div className="readonly-bar">{t("chat.readOnlyHint")}</div>
@@ -910,7 +1095,7 @@ export function ChatView({ sessionId, onMenu, onClosePane }: { sessionId: string
       />
       )}
       </div>
-    </>
+    </ChatCtx.Provider>
   );
 }
 

web/src/components/ColorSwatches.tsx

@@ -0,0 +1,29 @@
+import { useT, type Key } from "../i18n";
+
+/** Colour tags of chats: names, drawn in the colours of the active theme (see `[data-color]` in styles.css). */
+export const SESSION_COLORS = ["red", "orange", "yellow", "green", "aqua", "blue", "purple"] as const;
+
+/** Row of colour dots; the selected one is ringed, a second click (or ✕) removes the tag. */
+export function ColorSwatches({ value, onChange }: { value?: string; onChange: (color: string) => void }) {
+  const t = useT();
+  return (
+    <div className="color-swatches" role="radiogroup" aria-label={t("color.label")}>
+      {SESSION_COLORS.map((c) => (
+        <button
+          key={c}
+          type="button"
+          role="radio"
+          aria-checked={value === c}
+          className={`swatch ${value === c ? "on" : ""}`}
+          data-color={c}
+          title={t(`color.${c}` as Key)}
+          aria-label={t(`color.${c}` as Key)}
+          onClick={(e) => {
+            e.stopPropagation();
+            onChange(value === c ? "" : c);
+          }}
+        />
+      ))}
+    </div>
+  );
+}

web/src/components/Composer.tsx

@@ -10,6 +10,7 @@ import { ModelSelect } from "./ModelSelect";
 import { EffortSelect } from "./Regenerate";
 import { VoiceButton } from "./Voice";
 import { Markdown } from "./Markdown";
+import { COMPOSE_EVENT, type ComposeDetail } from "../compose";
 import { confirmDialog, promptDialog, toast } from "../dialogs";
 
 interface Suggestion {
@@ -207,6 +208,27 @@ export function Composer({
     }
   };
 
+  // Content sent from elsewhere (quote a message, image viewer): latest closures via refs.
+  const live = useRef({ text, addFiles, setText });
+  live.current = { text, addFiles, setText };
+  useEffect(() => {
+    const on = (e: Event) => {
+      const d = (e as CustomEvent<ComposeDetail>).detail;
+      if (d.sessionId !== session.id) return;
+      if (d.text) live.current.setText(live.current.text.trim() ? `${live.current.text.replace(/\s+$/, "")}\n\n${d.text}` : d.text);
+      if (d.files?.length) void live.current.addFiles(d.files);
+      requestAnimationFrame(() => {
+        const el = ref.current;
+        if (!el) return;
+        setPreview(false);
+        el.focus();
+        el.setSelectionRange(el.value.length, el.value.length);
+      });
+    };
+    window.addEventListener(COMPOSE_EVENT, on);
+    return () => window.removeEventListener(COMPOSE_EVENT, on);
+  }, [session.id]);
+
   const removeFile = (path: string) => {
     setFiles((cur) => cur.filter((f) => f.path !== path));
     void fetch(`/api/files/delete?path=${encodeURIComponent(path)}`, { method: "DELETE", credentials: "same-origin" });

web/src/components/Icon.tsx

@@ -34,6 +34,7 @@ const P: Record<string, ReactNode> = {
   download: <path d="M12 4v11M7 10l5 5 5-5M5 20h14" />,
   compact: <path d="M8 4l4 4 4-4M8 20l4-4 4 4M4 12h16" />,
   trash: <path d="M4 7h16M9 7V4h6v3M6 7l1 13h10l1-13M10 11v6M14 11v6" />,
+  reply: <path d="M9 7 4 12l5 5M4 12h9a7 7 0 0 1 7 7" />,
   edit: <path d="M4 20h4L19 9l-4-4L4 16v4ZM13.5 6.5l4 4" />,
   undo: <path d="M9 14 4 9l5-5M4 9h10a6 6 0 0 1 0 12h-3" />,
   clip: <path d="m20 11-8.5 8.5a5 5 0 0 1-7-7L13 4a3.5 3.5 0 0 1 5 5l-8.5 8.5a2 2 0 0 1-3-3L14 7" />,

web/src/components/ImageAnnotator.tsx

@@ -0,0 +1,160 @@
+import { useEffect, useRef, useState } from "react";
+import { useT } from "../i18n";
+import { toast } from "../dialogs";
+import { Icon } from "./Icon";
+
+type Tool = "pen" | "arrow" | "rect";
+interface Shape {
+  tool: Tool;
+  color: string;
+  /** pen: all points; arrow/rect: start and end. */
+  pts: { x: number; y: number }[];
+}
+
+const COLORS = ["#ff3b30", "#ffcc00", "#34c759", "#0a84ff", "#ffffff", "#000000"];
+const MAX_SIDE = 2000;
+
+function paint(ctx: CanvasRenderingContext2D, shapes: Shape[], w: number) {
+  const lw = Math.max(3, Math.round(w / 280));
+  for (const s of shapes) {
+    ctx.strokeStyle = s.color;
+    ctx.fillStyle = s.color;
+    ctx.lineWidth = lw;
+    ctx.lineCap = "round";
+    ctx.lineJoin = "round";
+    const a = s.pts[0];
+    const b = s.pts[s.pts.length - 1];
+    ctx.beginPath();
+    if (s.tool === "pen") {
+      ctx.moveTo(a.x, a.y);
+      for (const p of s.pts.slice(1)) ctx.lineTo(p.x, p.y);
+      if (s.pts.length === 1) ctx.lineTo(a.x + 0.1, a.y);
+      ctx.stroke();
+    } else if (s.tool === "rect") {
+      ctx.strokeRect(a.x, a.y, b.x - a.x, b.y - a.y);
+    } else {
+      // Arrow: line with a filled head at the end.
+      const ang = Math.atan2(b.y - a.y, b.x - a.x);
+      const head = lw * 5;
+      ctx.moveTo(a.x, a.y);
+      ctx.lineTo(b.x - Math.cos(ang) * head * 0.6, b.y - Math.sin(ang) * head * 0.6);
+      ctx.stroke();
+      ctx.beginPath();
+      ctx.moveTo(b.x, b.y);
+      ctx.lineTo(b.x - head * Math.cos(ang - 0.45), b.y - head * Math.sin(ang - 0.45));
+      ctx.lineTo(b.x - head * Math.cos(ang + 0.45), b.y - head * Math.sin(ang + 0.45));
+      ctx.closePath();
+      ctx.fill();
+    }
+  }
+}
+
+/** Draw on an image (pen, arrow, rectangle) and hand the result back as a PNG file. */
+export function ImageAnnotator({ src, name, onDone, onCancel }: { src: string; name: string; onDone: (file: File) => void; onCancel: () => void }) {
+  const t = useT();
+  const canvas = useRef<HTMLCanvasElement>(null);
+  const bitmap = useRef<HTMLImageElement | undefined>(undefined);
+  const [shapes, setShapes] = useState<Shape[]>([]);
+  const [tool, setTool] = useState<Tool>("pen");
+  const [color, setColor] = useState(COLORS[0]);
+  const [ready, setReady] = useState(false);
+  const drawing = useRef<Shape | null>(null);
+
+  const redraw = (extra?: Shape | null) => {
+    const c = canvas.current;
+    const img = bitmap.current;
+    if (!c || !img) return;
+    const ctx = c.getContext("2d")!;
+    ctx.clearRect(0, 0, c.width, c.height);
+    ctx.drawImage(img, 0, 0, c.width, c.height);
+    paint(ctx, extra ? [...shapes, extra] : shapes, c.width);
+  };
+
+  useEffect(() => {
+    const img = new Image();
+    img.crossOrigin = "anonymous";
+    img.onload = () => {
+      const c = canvas.current;
+      if (!c) return;
+      const scale = Math.min(1, MAX_SIDE / Math.max(img.naturalWidth || 1, img.naturalHeight || 1));
+      c.width = Math.max(1, Math.round((img.naturalWidth || 300) * scale));
+      c.height = Math.max(1, Math.round((img.naturalHeight || 200) * scale));
+      bitmap.current = img;
+      setReady(true);
+    };
+    img.onerror = () => {
+      toast(t("viewer.annotateFailed"));
+      onCancel();
+    };
+    img.src = src;
+  }, [src]); // eslint-disable-line react-hooks/exhaustive-deps
+
+  useEffect(() => redraw(), [shapes, ready]); // eslint-disable-line react-hooks/exhaustive-deps
+
+  const point = (e: React.PointerEvent) => {
+    const c = canvas.current!;
+    const r = c.getBoundingClientRect();
+    return { x: ((e.clientX - r.left) / r.width) * c.width, y: ((e.clientY - r.top) / r.height) * c.height };
+  };
+
+  const finish = () => {
+    const c = canvas.current;
+    if (!c) return;
+    c.toBlob((blob) => {
+      if (!blob) return toast(t("viewer.annotateFailed"));
+      const base = name.replace(/\.[a-z0-9]{1,5}$/i, "") || "image";
+      onDone(new File([blob], `${base}-marked.png`, { type: "image/png" }));
+    }, "image/png");
+  };
+
+  return (
+    <div className="annotator" onClick={(e) => e.stopPropagation()} onWheel={(e) => e.stopPropagation()}>
+      <canvas
+        ref={canvas}
+        style={{ visibility: ready ? "visible" : "hidden" }}
+        onPointerDown={(e) => {
+          e.currentTarget.setPointerCapture(e.pointerId);
+          drawing.current = { tool, color, pts: [point(e)] };
+        }}
+        onPointerMove={(e) => {
+          const d = drawing.current;
+          if (!d) return;
+          const p = point(e);
+          d.pts = d.tool === "pen" ? [...d.pts, p] : [d.pts[0], p];
+          redraw(d);
+        }}
+        onPointerUp={() => {
+          const d = drawing.current;
+          drawing.current = null;
+          if (d) setShapes((s) => [...s, d]);
+        }}
+        onPointerCancel={() => {
+          drawing.current = null;
+          redraw();
+        }}
+      />
+      <div className="annotator-tools" role="toolbar" aria-label={t("viewer.annotate")}>
+        {(["pen", "arrow", "rect"] as Tool[]).map((k) => (
+          <button key={k} className={`small ${tool === k ? "primary" : "ghost"}`} onClick={() => setTool(k)} aria-pressed={tool === k} title={t(`viewer.tool.${k}` as const)}>
+            <Icon name={k === "pen" ? "edit" : k === "arrow" ? "arrow-right" : "box-off"} />
+          </button>
+        ))}
+        <span className="annotator-colors">
+          {COLORS.map((c) => (
+            <button key={c} className={`swatch ${c === color ? "on" : ""}`} style={{ background: c }} onClick={() => setColor(c)} aria-label={c} aria-pressed={c === color} />
+          ))}
+        </span>
+        <button className="small ghost" onClick={() => setShapes((s) => s.slice(0, -1))} disabled={!shapes.length} title={t("viewer.undo")} aria-label={t("viewer.undo")}>
+          <Icon name="undo" />
+        </button>
+        <span className="grow" />
+        <button className="small" onClick={onCancel}>
+          {t("common.cancel")}
+        </button>
+        <button className="small primary" onClick={finish} disabled={!ready}>
+          <Icon name="clip" /> {t("viewer.attach")}
+        </button>
+      </div>
+    </div>
+  );
+}

web/src/components/ImageViewer.tsx

@@ -0,0 +1,242 @@
+import { useCallback, useEffect, useRef, useState } from "react";
+import { Icon } from "./Icon";
+import { ImageAnnotator } from "./ImageAnnotator";
+import { compose } from "../compose";
+import { toast } from "../dialogs";
+import { useT } from "../i18n";
+
+/** Images that open in the viewer: everything in the app, except UI chrome. */
+const SKIP = ".viewer-overlay, .sidebar, .topbar, button, .modal-backdrop .viewer, .model-viewer, .media-stage, .composer, .brand, .login";
+
+interface Item {
+  src: string;
+  alt: string;
+}
+
+const clamp = (v: number, a: number, b: number) => Math.min(b, Math.max(a, v));
+
+/**
+ * Popup image viewer: a click on any image of the app opens it fullscreen.
+ * Pinch / wheel / double tap to zoom, drag to pan, arrows or swipe for the other
+ * images of the same chat, Esc to close. Mounted once; listens for clicks globally.
+ */
+export function ImageViewer() {
+  const t = useT();
+  const [list, setList] = useState<Item[]>([]);
+  const [idx, setIdx] = useState(0);
+  const [open, setOpen] = useState(false);
+  // Chat the image belongs to (for "use in message"); drawing mode.
+  const [sessionId, setSessionId] = useState<string>();
+  const [marking, setMarking] = useState(false);
+  const [view, setView] = useState({ x: 0, y: 0, s: 1 });
+  const pointers = useRef(new Map<number, { x: number; y: number }>());
+  const gesture = useRef<{ d: number; s: number } | null>(null);
+  const moved = useRef(false);
+  const lastTap = useRef(0);
+  const swipe = useRef<{ x: number; y: number } | null>(null);
+
+  const reset = useCallback(() => setView({ x: 0, y: 0, s: 1 }), []);
+  const close = useCallback(() => setOpen(false), []);
+  const go = useCallback(
+    (d: number) => {
+      setIdx((i) => clamp(i + d, 0, list.length - 1));
+      reset();
+    },
+    [list.length, reset],
+  );
+
+  useEffect(() => {
+    const onClick = (e: MouseEvent) => {
+      const img = (e.target as HTMLElement | null)?.closest?.("img");
+      if (!img || img.closest(SKIP) || e.defaultPrevented || e.button !== 0) return;
+      if (img.naturalWidth && img.naturalWidth < 24) return; // icons
+      e.preventDefault(); // the surrounding link would open a new tab
+      e.stopPropagation();
+      const scope = img.closest(".chat, .files-main, .gallery, .main") ?? document;
+      const all = [...scope.querySelectorAll("img")].filter((i) => !i.closest(SKIP) && i.src && (i.naturalWidth === 0 || i.naturalWidth >= 24));
+      const seen = new Set<string>();
+      const items: Item[] = [];
+      let start = 0;
+      for (const i of all) {
+        if (seen.has(i.currentSrc || i.src)) {
+          if (i === img) start = items.findIndex((x) => x.src === (i.currentSrc || i.src));
+          continue;
+        }
+        seen.add(i.currentSrc || i.src);
+        if (i === img) start = items.length;
+        items.push({ src: i.currentSrc || i.src, alt: i.alt });
+      }
+      setSessionId((img.closest("[data-session-id]") as HTMLElement | null)?.dataset.sessionId);
+      setMarking(false);
+      setList(items.length ? items : [{ src: img.currentSrc || img.src, alt: img.alt }]);
+      setIdx(Math.max(0, start));
+      reset();
+      setOpen(true);
+    };
+    // Capture phase: before the link around a thumbnail navigates.
+    document.addEventListener("click", onClick, true);
+    return () => document.removeEventListener("click", onClick, true);
+  }, [reset]);
+
+  useEffect(() => {
+    if (!open) return;
+    const onKey = (e: KeyboardEvent) => {
+      if (marking) return;
+      if (e.key === "Escape") close();
+      else if (e.key === "ArrowLeft") go(-1);
+      else if (e.key === "ArrowRight") go(1);
+      else if (e.key === "+" || e.key === "=") setView((v) => ({ ...v, s: clamp(v.s * 1.25, 1, 8) }));
+      else if (e.key === "-") setView((v) => ({ ...v, s: clamp(v.s / 1.25, 1, 8), ...(v.s / 1.25 <= 1 ? { x: 0, y: 0 } : {}) }));
+      else return;
+      e.preventDefault();
+    };
+    window.addEventListener("keydown", onKey);
+    const prev = document.body.style.overflow;
+    document.body.style.overflow = "hidden";
+    return () => {
+      window.removeEventListener("keydown", onKey);
+      document.body.style.overflow = prev;
+    };
+  }, [open, close, go, marking]);
+
+  if (!open || !list[idx]) return null;
+  const cur = list[idx];
+
+  /** The image as a file for the composer (variants, questions about it, …). */
+  async function useInChat() {
+    try {
+      const blob = await (await fetch(cur.src, { credentials: "same-origin" })).blob();
+      const ext = blob.type.split("/")[1]?.split("+")[0] || "png";
+      compose({ sessionId: sessionId!, files: [new File([blob], `image.${ext}`, { type: blob.type || "image/png" })] });
+      toast(t("viewer.attached"), "success");
+      close();
+    } catch {
+      toast(t("viewer.annotateFailed"));
+    }
+  }
+
+  const dist = () => {
+    const [a, b] = [...pointers.current.values()];
+    return Math.hypot(a.x - b.x, a.y - b.y);
+  };
+
+  return (
+    <div
+      className="viewer-overlay"
+      role="dialog"
+      aria-modal="true"
+      aria-label={t("viewer.title")}
+      onClick={() => {
+        if (!moved.current) close();
+      }}
+      onWheel={(e) => setView((v) => {
+        const s = clamp(v.s * (e.deltaY < 0 ? 1.15 : 1 / 1.15), 1, 8);
+        return s === 1 ? { x: 0, y: 0, s } : { ...v, s };
+      })}
+    >
+      <div className="viewer-bar" onClick={(e) => e.stopPropagation()}>
+        <span className="viewer-count">{list.length > 1 ? `${idx + 1} / ${list.length}` : ""}</span>
+        <span className="viewer-name">{cur.alt && !/^(image|SVG)$/i.test(cur.alt) ? cur.alt : ""}</span>
+        {sessionId && (
+          <>
+            <button className="small ghost" onClick={() => setMarking(true)} title={t("viewer.annotate")} aria-label={t("viewer.annotate")}>
+              <Icon name="edit" />
+            </button>
+            <button className="small ghost" onClick={() => void useInChat()} title={t("viewer.useInChat")} aria-label={t("viewer.useInChat")}>
+              <Icon name="reply" />
+            </button>
+          </>
+        )}
+        <a className="button small ghost" href={cur.src} target="_blank" rel="noreferrer" title={t("viewer.open")} aria-label={t("viewer.open")}>
+          <Icon name="share" />
+        </a>
+        <a className="button small ghost" href={cur.src} download title={t("viewer.download")} aria-label={t("viewer.download")}>
+          <Icon name="download" />
+        </a>
+        <button className="small ghost" onClick={close} aria-label={t("common.close")}>
+          <Icon name="close" />
+        </button>
+      </div>
+      {marking && (
+        <ImageAnnotator
+          src={cur.src}
+          name={cur.alt || "image"}
+          onCancel={() => setMarking(false)}
+          onDone={(file) => {
+            compose({ sessionId: sessionId!, files: [file] });
+            toast(t("viewer.attached"), "success");
+            close();
+          }}
+        />
+      )}
+      {!marking && idx > 0 && (
+        <button className="viewer-nav prev" onClick={(e) => (e.stopPropagation(), go(-1))} aria-label={t("media.prev")}>
+          <Icon name="arrow-left" />
+        </button>
+      )}
+      {!marking && idx < list.length - 1 && (
+        <button className="viewer-nav next" onClick={(e) => (e.stopPropagation(), go(1))} aria-label={t("media.next")}>
+          <Icon name="arrow-right" />
+        </button>
+      )}
+      {!marking && <img
+        key={cur.src}
+        className="viewer-img"
+        src={cur.src}
+        alt={cur.alt}
+        draggable={false}
+        style={{ transform: `translate(${view.x}px, ${view.y}px) scale(${view.s})`, cursor: view.s > 1 ? "grab" : "zoom-in" }}
+        onClick={(e) => e.stopPropagation()}
+        onPointerDown={(e) => {
+          e.currentTarget.setPointerCapture(e.pointerId);
+          pointers.current.set(e.pointerId, { x: e.clientX, y: e.clientY });
+          moved.current = false;
+          if (pointers.current.size === 2) gesture.current = { d: dist(), s: view.s };
+          else swipe.current = { x: e.clientX, y: e.clientY };
+        }}
+        onPointerMove={(e) => {
+          const p = pointers.current.get(e.pointerId);
+          if (!p) return;
+          const dx = e.clientX - p.x;
+          const dy = e.clientY - p.y;
+          pointers.current.set(e.pointerId, { x: e.clientX, y: e.clientY });
+          if (pointers.current.size === 2 && gesture.current) {
+            moved.current = true;
+            const s = clamp((gesture.current.s * dist()) / gesture.current.d, 1, 8);
+            setView((v) => (s === 1 ? { x: 0, y: 0, s } : { ...v, s }));
+          } else if (view.s > 1) {
+            if (Math.abs(dx) + Math.abs(dy) > 1) moved.current = true;
+            setView((v) => ({ ...v, x: v.x + dx, y: v.y + dy }));
+          }
+        }}
+        onPointerUp={(e) => {
+          pointers.current.delete(e.pointerId);
+          gesture.current = null;
+          const s0 = swipe.current;
+          swipe.current = null;
+          if (s0 && view.s === 1) {
+            const dx = e.clientX - s0.x;
+            const dy = e.clientY - s0.y;
+            if (Math.abs(dx) > 60 && Math.abs(dx) > Math.abs(dy) * 1.5) {
+              moved.current = true;
+              go(dx < 0 ? 1 : -1);
+            } else if (dy > 90 && Math.abs(dy) > Math.abs(dx) * 1.5) {
+              moved.current = true;
+              close();
+            }
+          }
+          // Double tap / double click: zoom in or back.
+          if (!moved.current) {
+            const now = Date.now();
+            if (now - lastTap.current < 300) setView((v) => (v.s > 1 ? { x: 0, y: 0, s: 1 } : { ...v, s: 2.5 }));
+            lastTap.current = now;
+          }
+        }}
+        onPointerCancel={(e) => {
+          pointers.current.delete(e.pointerId);
+          gesture.current = null;
+        }}
+      />}
+    </div>
+  );
+}

web/src/components/Interaction.tsx

@@ -1,7 +1,7 @@
 import { Icon } from "./Icon";
 import { useState } from "react";
 import { post } from "../api";
-import { useT } from "../i18n";
+import { getLang, useT } from "../i18n";
 import { navigate } from "../router";
 import { useStore } from "../store";
 import type { PermissionRequest, QuestionRequest } from "../types";
@@ -31,7 +31,24 @@ export function PermissionCard({ req, currentId }: { req: PermissionRequest; cur
   const chosen = selected.filter(Boolean).length;
   const partial = hunkCount > 1 && chosen < hunkCount;
 
-  const reply = async (r: "once" | "always" | "reject") => {
+  const [explaining, setExplaining] = useState(false);
+  const [explanation, setExplanation] = useState<string>();
+  const [explainError, setExplainError] = useState<string>();
+  /** The small model explains in plain words what the action does (approving on a phone without reading code). */
+  const explain = async () => {
+    setExplaining(true);
+    setExplainError(undefined);
+    try {
+      const r = await post<{ text: string }>(`/permissions/${req.id}/explain`, { lang: getLang() });
+      setExplanation(r.text);
+    } catch (e: any) {
+      setExplainError(e.message);
+    } finally {
+      setExplaining(false);
+    }
+  };
+
+  const reply = async (r: "once" | "always" | "project" | "reject") => {
     setBusy(true);
     try {
       const hunks = r === "once" && partial ? selected.flatMap((on, i) => (on ? [i] : [])) : undefined;
@@ -47,6 +64,10 @@ export function PermissionCard({ req, currentId }: { req: PermissionRequest; cur
       ? t("permission.alwaysCommand", { prefix: (command ?? "").split(/\s+/).slice(0, 2).join(" ") })
       : t("permission.alwaysTool", { tool: req.tool });
 
+  // Dangerous commands are only ever allowed for the session (the server decides; this hides the button).
+  const dangerous = !!command && /\b(rm\s+-[a-zA-Z]*[rRf]|sudo|su|git\s+(push|reset|clean|rebase|checkout|restore)|docker|docker-compose|systemctl|chmod\s+-R|chown\s+-R|dd|mkfs|shutdown|reboot|kill|pkill|killall|crontab)\b|\|\s*(ba)?sh\b|publish/.test(command);
+  const projectLabel = req.tool === "bash" ? t("permission.projectCommand", { prefix: (command ?? "").split(/\s+/).slice(0, 2).join(" ") }) : t("permission.projectTool", { tool: req.tool });
+
   return (
     <div className="card" role="alertdialog" aria-label={t("permission.title")}>
       <h3>
@@ -72,6 +93,16 @@ export function PermissionCard({ req, currentId }: { req: PermissionRequest; cur
           </details>
         )
       )}
+      {explanation ? (
+        <div className="explain" role="note">
+          <Icon name="sparkle" className="tiny" /> {explanation}
+        </div>
+      ) : (
+        <button className="small ghost explain-btn" disabled={explaining} onClick={explain}>
+          <Icon name="sparkle" /> {explaining ? t("permission.explaining") : t("permission.explain")}
+        </button>
+      )}
+      {explainError && <div className="hint">{explainError}</div>}
       <input
         style={{ width: "100%", marginTop: 8 }}
         placeholder={t("permission.feedback")}
@@ -86,6 +117,11 @@ export function PermissionCard({ req, currentId }: { req: PermissionRequest; cur
         <button disabled={busy || partial} onClick={() => reply("always")}>
           {alwaysLabel}
         </button>
+        {!dangerous && (
+          <button disabled={busy || partial} onClick={() => reply("project")} title={t("permission.projectHint")}>
+            {projectLabel}
+          </button>
+        )}
         <button className="danger" disabled={busy} onClick={() => reply("reject")}>
           {feedback ? t("permission.rejectWithFeedback") : t("permission.reject")}
         </button>

web/src/components/MediaGallery.tsx

@@ -3,14 +3,24 @@ import { get } from "../api";
 import { useT, type Key } from "../i18n";
 import { Spinner } from "./Activity";
 import { Icon } from "./Icon";
+import { navigate } from "../router";
+
+/** Open a 3D model in the 3D view of the file manager. */
+const open3d = (path: string) => {
+  sessionStorage.setItem("codecraft.openFile", path);
+  navigate("/files");
+};
 
 interface MediaItem {
-  kind: "image" | "video" | "audio";
+  kind: "image" | "video" | "audio" | "model";
   url: string;
   name: string;
   source: "generated" | "tool" | "written" | "answer" | "upload";
   created_at: number;
   message_id?: string;
+  /** 3D models: file (opened in the 3D view) and preview image. */
+  path?: string;
+  preview?: string;
 }
 
 type Filter = "all" | MediaItem["kind"];
@@ -55,7 +65,7 @@ export function MediaGallery({ sessionId, onClose, onJump }: { sessionId: string
             <Icon name="image" /> {t("media.title")}
           </h3>
           <div className="media-filters" role="radiogroup">
-            {(["all", "image", "video", "audio"] as Filter[]).map((k) => (
+            {(["all", "image", "video", "audio", "model"] as Filter[]).map((k) => (
               <button key={k} role="radio" aria-checked={filter === k} className={`chip-btn ${filter === k ? "active" : ""}`} onClick={() => (setFilter(k), setOpen(undefined))} disabled={!!items && count(k) === 0 && k !== "all"}>
                 {t(`media.filter.${k}` as Key)} {items && <small>{count(k)}</small>}
               </button>
@@ -78,6 +88,16 @@ export function MediaGallery({ sessionId, onClose, onJump }: { sessionId: string
               {current.kind === "image" && <img src={current.url} alt={current.name} />}
               {current.kind === "video" && <video src={current.url} controls autoPlay />}
               {current.kind === "audio" && <audio src={current.url} controls autoPlay />}
+              {current.kind === "model" && (
+                <div className="media-model">
+                  {current.preview ? <img src={current.preview} alt={current.name} /> : <Icon name="cube" />}
+                  {current.path && (
+                    <button className="primary" onClick={() => open3d(current.path!)}>
+                      <Icon name="cube" /> {t("tool.open3d")}
+                    </button>
+                  )}
+                </div>
+              )}
             </div>
             <div className="media-bar">
               <button className="small ghost" disabled={open === 0} onClick={() => setOpen((o) => (o ?? 1) - 1)} aria-label={t("media.prev")}>
@@ -115,6 +135,16 @@ export function MediaGallery({ sessionId, onClose, onJump }: { sessionId: string
                   </span>
                 )}
                 {m.kind === "video" && <Icon name="play" className="media-play" />}
+                {m.kind === "model" &&
+                  (m.preview ? (
+                    <img src={m.preview} alt="" loading="lazy" decoding="async" />
+                  ) : (
+                    <span className="media-audio">
+                      <Icon name="cube" />
+                      <span>{m.name}</span>
+                    </span>
+                  ))}
+                {m.kind === "model" && <span className="media-badge">3D</span>}
               </button>
             ))}
           </div>

web/src/components/MessageMenu.tsx

@@ -0,0 +1,75 @@
+import { createContext, useContext } from "react";
+import { post } from "../api";
+import { asQuote, compose } from "../compose";
+import { useT } from "../i18n";
+import { navigate } from "../router";
+import { loadSessions } from "../store";
+import { toast } from "../dialogs";
+import { Icon } from "./Icon";
+
+/** What the message menus of one chat need to know. */
+export const ChatCtx = createContext<{ sessionId: string; canFork: boolean; canReply: boolean }>({ sessionId: "", canFork: false, canReply: false });
+
+/**
+ * Actions of one message: copy, quote into the reply, fork the chat from here and
+ * (for own messages) edit and resend. Hover on desktop, always faintly visible on touch.
+ */
+export function MessageMenu({ messageId, text, forkable, onRewind }: { messageId: string; text: string; forkable: boolean; onRewind?: () => void }) {
+  const t = useT();
+  const { sessionId, canFork, canReply } = useContext(ChatCtx);
+  const close = (e: React.MouseEvent) => {
+    e.preventDefault();
+    (e.currentTarget.closest("details") as HTMLDetailsElement).open = false;
+  };
+  if (!text.trim() && !onRewind) return null;
+  return (
+    <details className="menu-pop msg-menu">
+      <summary className="small ghost" title={t("msg.actions")} aria-label={t("msg.actions")}>
+        <Icon name="more" />
+      </summary>
+      <div className="menu-pop-body">
+        {text.trim() && (
+          <a
+            href="#"
+            onClick={(e) => {
+              close(e);
+              const done = () => toast(t("msg.copied"), "success");
+              if (navigator.clipboard?.writeText) void navigator.clipboard.writeText(text).then(done, () => toast(t("msg.copyFailed")));
+              else toast(t("msg.copyFailed"));
+            }}
+          >
+            <Icon name="copy" /> {t("msg.copy")}
+          </a>
+        )}
+        {text.trim() && canReply && (
+          <a href="#" onClick={(e) => (close(e), compose({ sessionId, text: asQuote(text) }))}>
+            <Icon name="reply" /> {t("msg.quote")}
+          </a>
+        )}
+        {onRewind && (
+          <a href="#" onClick={(e) => (close(e), onRewind())}>
+            <Icon name="edit" /> {t("chat.rewind")}
+          </a>
+        )}
+        {forkable && canFork && (
+          <a
+            href="#"
+            onClick={async (e) => {
+              close(e);
+              try {
+                const fork = await post<{ id: string }>(`/sessions/${sessionId}/fork`, { message_id: messageId });
+                await loadSessions();
+                toast(t("chat.forked"));
+                navigate(`/s/${fork.id}`);
+              } catch (err: any) {
+                toast(err.message);
+              }
+            }}
+          >
+            <Icon name="fork" /> {t("msg.forkHere")}
+          </a>
+        )}
+      </div>
+    </details>
+  );
+}

web/src/components/NewSession.tsx

@@ -328,7 +328,8 @@ export function NewSession({ onMenu, onCreated }: { onMenu: () => void; onCreate
       const isCraft = task === "craft";
       const s = await post<{ id: string }>("/sessions", {
         cwd,
-        model: model || undefined,
+        // The server default is not sent, so the project's own default model can apply.
+        model: model && model !== config?.default_model ? model : undefined,
         agent: task === "cad" ? "build" : task,
         clean_room: isCraft ? !deep : undefined,
       });

web/src/components/OutboxBar.tsx

@@ -0,0 +1,39 @@
+import { useEffect } from "react";
+import { useT } from "../i18n";
+import { flushOutbox, removeFromOutbox, useOutbox } from "../outbox";
+import { useStore } from "../store";
+import { Icon } from "./Icon";
+
+/** Messages waiting for a connection: sent automatically once the server is reachable again. */
+export function OutboxBar({ sessionId }: { sessionId: string }) {
+  const t = useT();
+  const items = useOutbox(sessionId);
+  const connected = useStore((s) => s.connected);
+  useEffect(() => {
+    if (!items.length) return;
+    const go = () => void flushOutbox(sessionId);
+    if (connected && navigator.onLine) go();
+    window.addEventListener("online", go);
+    return () => window.removeEventListener("online", go);
+  }, [sessionId, connected, items.length]);
+  if (!items.length) return null;
+  return (
+    <div className="outbox" role="status">
+      <div className="outbox-head">
+        <Icon name="clock" className="tiny" /> {t("outbox.waiting", { n: items.length })}
+        <span className="grow" />
+        <button className="small" onClick={() => void flushOutbox(sessionId)}>
+          {t("outbox.sendNow")}
+        </button>
+      </div>
+      {items.map((i) => (
+        <div key={i.id} className="outbox-item">
+          <span>{i.text.length > 120 ? `${i.text.slice(0, 120)}…` : i.text}</span>
+          <button className="small ghost" onClick={() => removeFromOutbox(i.id)} aria-label={t("outbox.discard")} title={t("outbox.discard")}>
+            <Icon name="close" />
+          </button>
+        </div>
+      ))}
+    </div>
+  );
+}

web/src/components/ProjectPage.tsx

@@ -0,0 +1,128 @@
+import { useMemo } from "react";
+import { useFetch } from "../hooks";
+import { fmtCost, fmtDate, fmtRelative, useT, type Key } from "../i18n";
+import { navigate } from "../router";
+import { useStore } from "../store";
+import type { Session } from "../types";
+import { Icon } from "./Icon";
+import { basename } from "./FileFigure";
+
+interface Overview {
+  sessions: Record<string, { files: number; check: string | null; checks_failed: number; cost: number }>;
+  check: { command: string; enabled: boolean } | null;
+  defaults: { model?: string; agent?: string; permission_mode?: string; color?: string; instructions?: string; folder?: string } | null;
+  currency: string;
+}
+
+const day = (ms: number) => new Date(ms).toDateString();
+
+/** One project folder: its chats as a timeline (newest first) with what each one did. */
+export function ProjectPage({ cwd, onMenu }: { cwd: string; onMenu: () => void }) {
+  const t = useT();
+  const all = useStore((s) => s.sessions);
+  const { data } = useFetch<Overview>(`/projects/overview?cwd=${encodeURIComponent(cwd)}`);
+  const sessions = useMemo(() => all.filter((s) => s.cwd === cwd && !s.archived).sort((a, b) => b.updated_at - a.updated_at), [all, cwd]);
+  const archived = all.filter((s) => s.cwd === cwd && s.archived).length;
+
+  // Day groups: "Today", "Yesterday", date.
+  const groups = useMemo(() => {
+    const out: { label: string; items: Session[] }[] = [];
+    const today = day(Date.now());
+    const yesterday = day(Date.now() - 86_400_000);
+    for (const s of sessions) {
+      const d = day(s.updated_at);
+      const label = d === today ? t("project.today") : d === yesterday ? t("project.yesterday") : fmtDate(s.updated_at, false);
+      const last = out[out.length - 1];
+      if (last?.label === label) last.items.push(s);
+      else out.push({ label, items: [s] });
+    }
+    return out;
+  }, [sessions, t]);
+
+  const totalCost = sessions.reduce((n, s) => n + (data?.sessions[s.id]?.cost ?? 0), 0);
+  const totalFiles = sessions.reduce((n, s) => n + (data?.sessions[s.id]?.files ?? 0), 0);
+
+  const newChat = () => {
+    try {
+      localStorage.setItem("codecraft.lastDir", cwd);
+    } catch {
+      // Without storage the wizard starts at its usual folder.
+    }
+    navigate("/new");
+  };
+
+  return (
+    <>
+      <div className="topbar">
+        <button className="ghost menu-btn" onClick={onMenu} aria-label={t("nav.menu")}>
+          <Icon name="menu" />
+        </button>
+        <div className="grow">
+          <h1>
+            <Icon name="folder" /> {basename(cwd) || "/"}
+          </h1>
+          <div className="path mono">{cwd}</div>
+        </div>
+        <button className="small primary" onClick={newChat}>
+          <Icon name="plus" /> {t("project.newChat")}
+        </button>
+      </div>
+      <div className="chat-scroll">
+        <div className="chat project-page">
+          <div className="project-summary">
+            <span className="chip">{t("project.chats", { n: sessions.length })}</span>
+            {totalFiles > 0 && <span className="chip">{t("project.files", { n: totalFiles })}</span>}
+            {data && totalCost > 0 && <span className="chip">{fmtCost(totalCost, data.currency)}</span>}
+            {data?.check?.enabled && (
+              <span className="chip mono" title={t("check.title")}>
+                <Icon name="check" className="tiny" /> {data.check.command}
+              </span>
+            )}
+            {data?.defaults?.model && (
+              <span className="chip" title={t("projectDefaults.hint")}>
+                <Icon name="template" className="tiny" /> {data.defaults.model.split("/").pop()}
+              </span>
+            )}
+            {archived > 0 && <span className="hint">{t("project.archived", { n: archived })}</span>}
+          </div>
+          {sessions.length === 0 && <div className="empty">{t("project.empty")}</div>}
+          {groups.map((g) => (
+            <section key={g.label} className="timeline-day">
+              <h3>{g.label}</h3>
+              <ol className="timeline">
+                {g.items.map((s) => {
+                  const info = data?.sessions[s.id];
+                  return (
+                    <li key={s.id} data-color={s.color} className={s.color ? "tagged" : ""}>
+                      <a href={`#/s/${s.id}`} onClick={(e) => (e.preventDefault(), navigate(`/s/${s.id}`))}>
+                        <div className="tl-title">
+                          <span className={s.color ? "color-badge" : undefined}>{s.title || t("session.untitled")}</span>
+                          <span className="tl-when" title={fmtDate(s.updated_at)}>
+                            {fmtRelative(s.updated_at)}
+                          </span>
+                        </div>
+                        {s.summary && <div className="tl-summary">{s.summary}</div>}
+                        <div className="tl-meta">
+                          <span>{s.agent}</span>
+                          <span>{s.model.split("/").pop()}</span>
+                          {!!info?.files && <span>{t("project.files", { n: info.files })}</span>}
+                          {info?.check && (
+                            <span className={`check-${info.check}`}>
+                              <Icon name={info.check === "passed" ? "check" : info.check === "running" ? "clock" : "x-mark"} className="tiny" /> {t(`check.${info.check}` as Key)}
+                            </span>
+                          )}
+                          {!!info?.checks_failed && <span className="check-failed">{t("project.checksFailed", { n: info.checks_failed })}</span>}
+                          {!!info?.cost && data && <span>{fmtCost(info.cost, data.currency)}</span>}
+                        </div>
+                      </a>
+                    </li>
+                  );
+                })}
+              </ol>
+            </section>
+          ))}
+        </div>
+      </div>
+    </>
+  );
+}

web/src/components/ProjectPermissions.tsx

@@ -0,0 +1,55 @@
+import { useEffect, useState } from "react";
+import { api, get } from "../api";
+import { useT } from "../i18n";
+import { toast } from "../dialogs";
+import { Icon } from "./Icon";
+
+/** "bash:git status" → "git status"; tool names stay. */
+const label = (key: string) => (key.startsWith("bash:") ? `$ ${key.slice(5)}` : key);
+
+/** What the user allowed "for this project" (all chats of the folder) – with a way to revoke it. */
+export function ProjectPermissions({ sessionId, cwd, onClose }: { sessionId: string; cwd: string; onClose: () => void }) {
+  const t = useT();
+  const [keys, setKeys] = useState<string[]>();
+  useEffect(() => {
+    get<string[]>(`/sessions/${sessionId}/approvals`).then(setKeys, (e) => (toast(e.message), setKeys([])));
+  }, [sessionId]);
+  const revoke = async (key: string) => {
+    try {
+      await api(`/sessions/${sessionId}/approvals`, { method: "DELETE", json: { key } });
+      setKeys((k) => k?.filter((x) => x !== key));
+    } catch (e: any) {
+      toast(e.message);
+    }
+  };
+  return (
+    <div className="modal-backdrop" onClick={onClose}>
+      <div className="modal" role="dialog" aria-label={t("permProject.title")} onClick={(e) => e.stopPropagation()}>
+        <h3>
+          <Icon name="lock" /> {t("permProject.title")}
+        </h3>
+        <p style={{ fontSize: 13, color: "var(--fg3)", marginBottom: 4 }}>{t("permProject.intro")}</p>
+        <div className="path mono" style={{ marginBottom: 8 }}>{cwd}</div>
+        {keys === undefined ? (
+          <div className="empty">…</div>
+        ) : keys.length === 0 ? (
+          <p style={{ fontSize: 13 }}>{t("permProject.empty")}</p>
+        ) : (
+          <ul className="rewind-files">
+            {keys.map((k) => (
+              <li key={k} className="row" style={{ justifyContent: "space-between" }}>
+                <code>{label(k)}</code>
+                <button className="small danger" onClick={() => void revoke(k)}>
+                  {t("permProject.revoke")}
+                </button>
+              </li>
+            ))}
+          </ul>
+        )}
+        <div className="row" style={{ justifyContent: "flex-end", marginTop: 10 }}>
+          <button onClick={onClose}>{t("common.close")}</button>
+        </div>
+      </div>
+    </div>
+  );
+}

web/src/components/Sidebar.tsx

@@ -1,3 +1,4 @@
+import { ColorSwatches } from "./ColorSwatches";
 import { Icon } from "./Icon";
 import { StatusLeds } from "./StatusLeds";
 import { cycleThemeMode, getThemeMode, onThemeChange } from "../theme";
@@ -25,7 +26,7 @@ function groupKey(ms: number): Key {
 const GROUP_BY = "codecraft.sidebarGroupBy";
 const COLLAPSED = "codecraft.sidebarCollapsed";
 
-const organise = (id: string, body: Partial<Pick<Session, "pinned" | "archived">> & { folder?: string }) => patch(`/sessions/${id}`, body).catch((e) => toast(e.message));
+const organise = (id: string, body: Partial<Pick<Session, "pinned" | "archived">> & { folder?: string; color?: string }) => patch(`/sessions/${id}`, body).catch((e) => toast(e.message));
 
 /** One session in the list, with a menu to pin, file or archive it. */
 function SessionRow({ s, active, attention, busy, folders }: { s: Session; active: boolean; attention: boolean; busy: boolean; folders: string[] }) {
@@ -53,11 +54,12 @@ function SessionRow({ s, active, attention, busy, folders }: { s: Session; activ
   };
   return (
     <div className={`session-row ${menu ? "menu-open" : ""}`}>
-      <button className={`session-item ${active ? "active" : ""}`} onClick={() => navigate(`/s/${s.id}`)}>
+      <button className={`session-item ${active ? "active" : ""}`} data-color={s.color} onClick={() => navigate(`/s/${s.id}`)}>
         <div className="title">
           {attention ? <i className="attn-dot" title={t("sidebar.needsInput")} /> : busy && <i className="busy-ring" title={t("activity.working")} />}
-          <span>{s.title || t("session.untitled")}</span>
+          <span className={s.color ? "color-badge" : undefined}>{s.title || t("session.untitled")}</span>
         </div>
+        {s.summary && <div className="summary" title={s.summary}>{s.summary}</div>}
         <div className="sub">
           {s.shared && <span title={t("sidebar.shared")}><Icon name="share" className="tiny" /> </span>}
           {basename(s.cwd)} · {s.agent} · {fmtRelative(s.updated_at)}
@@ -93,6 +95,7 @@ function SessionRow({ s, active, attention, busy, folders }: { s: Session; activ
               <Icon name="folder-up" /> {t("sidebar.removeFromFolder")}
             </button>
           )}
+          <ColorSwatches value={s.color} onChange={(color) => (setMenu(false), organise(s.id, { color }))} />
           <button role="menuitem" onClick={() => (setMenu(false), organise(s.id, { archived: !s.archived }))}>
             <Icon name="archive" /> {t(s.archived ? "sidebar.unarchive" : "sidebar.archiveOne")}
           </button>
@@ -194,6 +197,11 @@ function GroupHeader({
       )}
       {menu && (
         <div className="session-menu" role="menu" onClick={(e) => e.stopPropagation()}>
+          {g.id.startsWith("project:") && (
+            <button role="menuitem" onClick={() => (setMenu(false), navigate(`/p/${encodeURIComponent(g.id.slice("project:".length))}`))}>
+              <Icon name="clock" /> {t("project.open")}
+            </button>
+          )}
           <button role="menuitem" onClick={() => (setMenu(false), onPin?.())}>
             <Icon name="pin" /> {t(pinned ? "sidebar.groupUnpin" : "sidebar.groupPin")}
           </button>

web/src/components/ToolCard.tsx

@@ -121,7 +121,7 @@ export function ToolCard({ call, result, running, baseDir }: { call: ToolCall; r
   const diffLines = typeof meta?.diff === "string" ? meta.diff.split("\n").length : 0;
   const openByDefault =
     (status === "err" && !!result) ||
-    (!!result && !result.is_error && ((diffLines > 0 && diffLines <= 40) || call.name === "generate_image"));
+    (!!result && !result.is_error && ((diffLines > 0 && diffLines <= 40) || call.name === "generate_image" || call.name === "generate_3d"));
   const open = toggled ?? openByDefault;
 
   return (
@@ -164,6 +164,18 @@ export function ToolCard({ call, result, running, baseDir }: { call: ToolCall; r
             <pre className="mono">{result.content}</pre>
           </>
         )}
+        {typeof meta?.model_file === "string" && (
+          <button
+            className="small"
+            style={{ marginBottom: 8 }}
+            onClick={() => {
+              sessionStorage.setItem("codecraft.openFile", meta.model_file);
+              navigate("/files");
+            }}
+          >
+            <Icon name="cube" /> {t("tool.open3d")}
+          </button>
+        )}
         {Array.isArray(meta?.image_ids) ? (
           <div className="gallery small">
             {meta.image_ids.map((id: string, i: number) => {

web/src/components/TurnChanges.tsx

@@ -0,0 +1,85 @@
+import { useState } from "react";
+import { get } from "../api";
+import { useT } from "../i18n";
+import type { Message } from "../types";
+import { Diff } from "./Diff";
+import { Icon } from "./Icon";
+import { basename } from "./FileFigure";
+
+interface Change {
+  path: string;
+  created: boolean;
+  deleted?: boolean;
+  diff?: string;
+  truncated?: boolean;
+}
+
+const count = (diff: string | undefined, sign: "+" | "-") => (diff ?? "").split("\n").filter((l) => l.startsWith(sign) && !l.startsWith(sign.repeat(3))).length;
+
+/**
+ * What one turn changed: files with their diffs (from the checkpoints the agent leaves before
+ * every write/edit) and a button to roll the chat and the files back to before the turn.
+ */
+export function TurnChanges({
+  sessionId,
+  fromId,
+  untilId,
+  fileCount,
+  userMessage,
+  onRewind,
+}: {
+  sessionId: string;
+  fromId: string;
+  untilId?: string;
+  fileCount: number;
+  userMessage?: Message;
+  onRewind?: (m: Message) => void;
+}) {
+  const t = useT();
+  const [open, setOpen] = useState(false);
+  const [changes, setChanges] = useState<Change[]>();
+  const [error, setError] = useState<string>();
+
+  const toggle = () => {
+    const next = !open;
+    setOpen(next);
+    if (next && !changes) {
+      const q = `since_message=${encodeURIComponent(fromId)}&diff=true${untilId ? `&until_message=${encodeURIComponent(untilId)}` : ""}`;
+      get<Change[]>(`/sessions/${sessionId}/changes?${q}`).then(setChanges, (e) => setError(e.message));
+    }
+  };
+
+  return (
+    <div className="turn-changes">
+      <button className="small ghost" onClick={toggle} aria-expanded={open}>
+        <Icon name={open ? "chevron-down" : "chevron-right"} className="tiny" /> {t("turn.changes", { n: fileCount })}
+      </button>
+      {open && (
+        <div className="turn-changes-body">
+          {error && <div className="notice err">{error}</div>}
+          {!changes && !error && <div className="hint">…</div>}
+          {changes?.length === 0 && <div className="hint">{t("turn.noChanges")}</div>}
+          {changes?.map((c) => (
+            <details key={c.path} className="turn-file">
+              <summary title={c.path}>
+                <span className="mono">{basename(c.path)}</span>
+                {c.created && <span className="chip">{t("turn.new")}</span>}
+                {c.deleted && <span className="chip warn">{t("turn.deleted")}</span>}
+                <span className="turn-stat">
+                  <span className="add">+{count(c.diff, "+")}</span> <span className="del">−{count(c.diff, "-")}</span>
+                </span>
+              </summary>
+              {c.diff ? <Diff diff={c.diff} /> : <div className="hint">{t("turn.noDiff")}</div>}
+              {c.truncated && <div className="hint">{t("turn.truncated")}</div>}
+            </details>
+          ))}
+          {userMessage && onRewind && changes && changes.length > 0 && (
+            <button className="small" onClick={() => onRewind(userMessage)}>
+              <Icon name="undo" /> {t("turn.rollback")}
+            </button>
+          )}
+        </div>
+      )}
+    </div>
+  );
+}

web/src/components/TurnCheck.tsx

@@ -0,0 +1,43 @@
+import { useState } from "react";
+import { post } from "../api";
+import { toast } from "../dialogs";
+import { useT } from "../i18n";
+import { useStore } from "../store";
+import { Spinner } from "./Activity";
+import { Icon } from "./Icon";
+
+/** Green/red badge of the project's check (tests, build …) for one turn; output and "let the agent fix it" on click. */
+export function TurnCheck({ sessionId, messageId, canSend }: { sessionId: string; messageId: string; canSend: boolean }) {
+  const t = useT();
+  const check = useStore((s) => s.checks[sessionId]?.[messageId]);
+  const [open, setOpen] = useState(false);
+  if (!check) return null;
+  const seconds = check.duration_ms >= 1000 ? ` · ${(check.duration_ms / 1000).toFixed(check.duration_ms >= 10_000 ? 0 : 1)} s` : "";
+  const label =
+    check.status === "running" ? t("check.running") : check.status === "passed" ? t("check.passed") : check.status === "timeout" ? t("check.timeout") : t("check.failed");
+  const fix = async () => {
+    try {
+      await post(`/sessions/${sessionId}/prompt`, { text: `${t("check.fixPrompt")}\n\n\`\`\`\n${check.output}\n\`\`\`` });
+    } catch (e: any) {
+      toast(e.message);
+    }
+  };
+  return (
+    <div className="turn-check">
+      <button className={`chip check-${check.status}`} onClick={() => setOpen(!open)} aria-expanded={open} disabled={check.status === "running"}>
+        {check.status === "running" ? <Spinner small /> : <Icon name={check.status === "passed" ? "check" : "x-mark"} className="tiny" />} {label}
+        {seconds}
+      </button>
+      {open && check.status !== "running" && (
+        <div className="turn-check-body">
+          <pre className="mono">{check.output || t("check.noOutput")}</pre>
+          {check.status !== "passed" && canSend && (
+            <button className="small primary" onClick={fix}>
+              <Icon name="sparkle" /> {t("check.fix")}
+            </button>
+          )}
+        </div>
+      )}
+    </div>
+  );
+}

web/src/components/settings/Account.tsx

@@ -6,6 +6,7 @@ import { GitAccount } from "./GitAccount";
 import { ApiTokens } from "./ApiTokens";
 import { CliInstall } from "./CliInstall";
 import { Memory } from "./Memory";
+import { ClaudeCode } from "./ClaudeCode";
 import { Telegram } from "./Telegram";
 
 export function Account() {
@@ -52,6 +53,7 @@ export function Account() {
     <Memory />
     <GitAccount />
     <CliInstall />
+    <ClaudeCode />
     <Telegram />
     <ApiTokens />
     </>

web/src/components/settings/ClaudeCode.tsx

@@ -0,0 +1,191 @@
+import { useEffect, useState } from "react";
+import { api, get, post } from "../../api";
+import { confirmDialog, toast } from "../../dialogs";
+import { useT } from "../../i18n";
+import { Icon } from "../Icon";
+import { Spinner } from "../Activity";
+import { useStore } from "../../store";
+
+interface Status {
+  installed: boolean;
+  logged_in?: boolean;
+  method?: string;
+  email?: string;
+  org?: string;
+  expires?: string;
+  login_in_progress?: boolean;
+  error?: string;
+  version?: string | null;
+  latest?: string | null;
+  update_available?: boolean;
+  output?: string;
+}
+
+/**
+ * Claude Code: sign in from the browser. The CLI prints a sign-in URL; the Anthropic page shows
+ * a code after login that is pasted here and handed back to the CLI on the server.
+ */
+export function ClaudeCode() {
+  const t = useT();
+  const [status, setStatus] = useState<Status>();
+  const [url, setUrl] = useState<string>();
+  const [code, setCode] = useState("");
+  const [busy, setBusy] = useState(false);
+  const [console_, setConsole] = useState(false);
+  const isAdmin = useStore((s) => s.me?.role === "admin");
+  const [updating, setUpdating] = useState(false);
+  const [checking, setChecking] = useState(false);
+  const [updateLog, setUpdateLog] = useState<string>();
+
+  const check = async () => {
+    setChecking(true);
+    try {
+      setStatus(await get<Status>("/claude/status?refresh=true"));
+    } catch (e: any) {
+      toast(e.message);
+    } finally {
+      setChecking(false);
+    }
+  };
+  const update = async () => {
+    setUpdating(true);
+    setUpdateLog(undefined);
+    try {
+      const r = await post<Status>("/claude/update", {});
+      setStatus(r);
+      setUpdateLog(r.output);
+      toast(t("claude.updated", { version: r.version ?? "" }), "success");
+    } catch (e: any) {
+      setUpdateLog(e.message);
+      toast(t("claude.updateFailed"));
+    } finally {
+      setUpdating(false);
+    }
+  };
+
+  const load = () => get<Status>("/claude/status").then(setStatus, (e) => setStatus({ installed: false, error: e.message }));
+  useEffect(() => void load(), []);
+
+  const start = async () => {
+    setBusy(true);
+    try {
+      const r = await post<{ url: string }>("/claude/login", { console: console_ });
+      setUrl(r.url);
+      setCode("");
+    } catch (e: any) {
+      toast(e.message);
+    } finally {
+      setBusy(false);
+    }
+  };
+  const submit = async () => {
+    setBusy(true);
+    try {
+      setStatus(await post<Status>("/claude/login/code", { code }));
+      setUrl(undefined);
+      setCode("");
+      toast(t("claude.signedIn"), "success");
+    } catch (e: any) {
+      toast(e.message);
+    } finally {
+      setBusy(false);
+    }
+  };
+  const cancel = async () => {
+    await api("/claude/login", { method: "DELETE" }).catch(() => undefined);
+    setUrl(undefined);
+    setCode("");
+  };
+  const logout = async () => {
+    if (!(await confirmDialog({ message: t("claude.logoutConfirm"), danger: true, confirmLabel: t("claude.logout") }))) return;
+    try {
+      setStatus(await post<Status>("/claude/logout", {}));
+    } catch (e: any) {
+      toast(e.message);
+    }
+  };
+
+  return (
+    <div className="panel">
+      <h3>
+        <Icon name="robot" /> {t("claude.title")}
+        <span className="spacer" />
+        {status?.logged_in && (
+          <button className="small ghost danger" onClick={logout}>
+            {t("claude.logout")}
+          </button>
+        )}
+      </h3>
+      <div className="hint" style={{ marginBottom: 10 }}>{t("claude.intro")}</div>
+      {!status && <Spinner />}
+      {status && !status.installed && <div className="notice err">{status.error ?? t("claude.notInstalled")}</div>}
+      {status?.installed && (
+        <div className="row" style={{ gap: 8, flexWrap: "wrap", marginBottom: 10 }}>
+          <span className="chip mono">{t("claude.version", { version: status.version ?? "?" })}</span>
+          {status.update_available ? (
+            <>
+              <span className="chip warn">{t("claude.updateAvailable", { version: status.latest ?? "" })}</span>
+              {isAdmin ? (
+                <button className="small primary" disabled={updating} onClick={update}>
+                  {updating ? <Spinner small /> : <Icon name="download" />} {updating ? t("claude.updating") : t("claude.update")}
+                </button>
+              ) : (
+                <span className="hint">{t("claude.updateAdmin")}</span>
+              )}
+            </>
+          ) : (
+            status.latest && <span className="chip">{t("claude.upToDate")}</span>
+          )}
+          <button className="small ghost" disabled={checking || updating} onClick={check} title={t("claude.checkNow")} aria-label={t("claude.checkNow")}>
+            {checking ? <Spinner small /> : <Icon name="refresh" />}
+          </button>
+        </div>
+      )}
+      {updateLog && (
+        <details style={{ marginBottom: 10 }}>
+          <summary className="hint" style={{ cursor: "pointer" }}>{t("claude.updateLog")}</summary>
+          <pre className="mono" style={{ whiteSpace: "pre-wrap", maxHeight: 200, overflow: "auto" }}>{updateLog}</pre>
+        </details>
+      )}
+      {status?.installed && status.logged_in && (
+        <div className="row" style={{ gap: 8, flexWrap: "wrap" }}>
+          <span className="chip">
+            <Icon name="check" className="tiny" /> {t("claude.signedInAs", { who: status.email || status.org || status.method || "" })}
+          </span>
+          {status.method && <span className="chip">{status.method}</span>}
+          {status.expires && <span className="hint">{t("claude.expires", { date: new Date(status.expires).toLocaleDateString() })}</span>}
+        </div>
+      )}
+      {status?.installed && !status.logged_in && !url && (
+        <>
+          <label className="row" style={{ marginBottom: 8 }}>
+            <input type="checkbox" checked={console_} onChange={(e) => setConsole(e.target.checked)} /> {t("claude.console")}
+          </label>
+          <button className="primary" disabled={busy} onClick={start}>
+            {busy ? <Spinner small /> : <Icon name="lock" />} {t("claude.signIn")}
+          </button>
+        </>
+      )}
+      {url && (
+        <ol className="cli-steps">
+          <li>
+            <a className="button" href={url} target="_blank" rel="noreferrer">
+              <Icon name="external" /> {t("claude.openLogin")}
+            </a>
+            <div className="hint">{t("claude.step1")}</div>
+          </li>
+          <li>
+            {t("claude.step2")}
+            <div className="row" style={{ marginTop: 6 }}>
+              <input style={{ flex: 1 }} value={code} placeholder={t("claude.codePlaceholder")} autoComplete="off" autoCapitalize="off" spellCheck={false} onChange={(e) => setCode(e.target.value)} onKeyDown={(e) => e.key === "Enter" && code.trim() && void submit()} />
+              <button className="primary" disabled={busy || !code.trim()} onClick={submit}>
+                {busy ? <Spinner small /> : <Icon name="check" />} {t("claude.confirm")}
+              </button>
+              <button onClick={cancel}>{t("common.cancel")}</button>
+            </div>
+          </li>
+        </ol>
+      )}
+    </div>
+  );
+}

web/src/compose.ts

@@ -0,0 +1,20 @@
+/** Put content into the composer of a chat from anywhere in the app (quote, image viewer, …). */
+export interface ComposeDetail {
+  sessionId: string;
+  /** Appended to the text field (a blank line before it if there is text already). */
+  text?: string;
+  /** Attached like dropped files (images stay images). */
+  files?: File[];
+}
+
+export const COMPOSE_EVENT = "codecraft:compose";
+
+export function compose(detail: ComposeDetail) {
+  window.dispatchEvent(new CustomEvent<ComposeDetail>(COMPOSE_EVENT, { detail }));
+}
+
+/** "> quoted\n> lines\n\n" for the composer. */
+export function asQuote(text: string) {
+  const lines = text.trim().split("\n").map((l) => `> ${l}`.trimEnd());
+  return `${lines.join("\n")}\n\n`;
+}

web/src/i18n/de.ts

@@ -356,6 +356,7 @@ export const de: Messages = {
   "media.filter.all": "Alle",
   "media.filter.image": "Bilder",
   "media.filter.video": "Videos",
+  "media.filter.model": "3D",
   "media.filter.audio": "Audio",
   "media.source.generated": "generiert",
   "media.source.tool": "Tool-Ausgabe",
@@ -365,8 +366,101 @@ export const de: Messages = {
   "media.showInChat": "Im Chat zeigen",
   "media.open": "Öffnen",
   "media.prev": "Vorheriges",
+  "msg.actions": "Nachrichtenaktionen",
+  "msg.copy": "Text kopieren",
+  "msg.copied": "Kopiert",
+  "msg.copyFailed": "Kopieren ist hier nicht möglich",
+  "msg.quote": "In Antwort zitieren",
+  "msg.forkHere": "Ab hier abzweigen",
+  "chat.jumpPrevOwn": "Vorherige eigene Nachricht",
+  "viewer.annotate": "Markieren",
+  "viewer.annotateFailed": "Dieses Bild lässt sich nicht bearbeiten",
+  "viewer.attach": "An Nachricht anhängen",
+  "viewer.undo": "Rückgängig",
+  "viewer.tool.pen": "Stift",
+  "viewer.tool.arrow": "Pfeil",
+  "viewer.tool.rect": "Rechteck",
+  "viewer.useInChat": "In Nachricht verwenden",
+  "viewer.attached": "Bild an die Nachricht angehängt",
+  "turn.changes": "{n} Datei(en) geändert",
+  "turn.noChanges": "Für diesen Schritt wurden keine Dateiänderungen gefunden.",
+  "turn.noDiff": "Kein Text-Diff verfügbar.",
+  "turn.truncated": "Der Diff ist gekürzt.",
+  "turn.new": "neu",
+  "turn.deleted": "gelöscht",
+  "turn.rollback": "Auf den Stand vor diesem Schritt zurücksetzen",
+  "job.plan": "Als Automatisierung planen",
+  "job.planHint": "Macht aus diesem Chat Anweisungen für eine wiederkehrende Automatisierung (aus, bis du den Zeitplan setzt)",
+  "job.drafting": "Automatisierung wird aus diesem Chat entworfen …",
+  "color.label": "Farbe dieses Chats",
+  "color.red": "Rot",
+  "color.orange": "Orange",
+  "color.yellow": "Gelb",
+  "color.green": "Grün",
+  "color.aqua": "Türkis",
+  "color.blue": "Blau",
+  "color.purple": "Violett",
+  "claude.title": "Claude Code",
+  "claude.intro": "Chats mit einem „Claude Code“-Modell führt die Claude-Code-CLI auf dem Server aus – mit deinem Claude-Abo oder Anthropic-Console-Konto. Einmal hier anmelden; Freigaben, Push und Sandbox funktionieren wie gewohnt.",
+  "claude.notInstalled": "Claude Code ist auf dem Server nicht installiert.",
+  "claude.console": "Anthropic Console (API-Abrechnung) statt Claude-Abo",
+  "claude.signIn": "Anmelden",
+  "claude.openLogin": "Anmeldeseite öffnen",
+  "claude.step1": "Bei Anthropic in einem beliebigen Browser (auch auf einem anderen Gerät) anmelden und den Zugriff erlauben.",
+  "claude.step2": "Den Code einfügen, den die Seite danach anzeigt:",
+  "claude.codePlaceholder": "Code von der Anmeldeseite",
+  "claude.confirm": "Bestätigen",
+  "claude.signedIn": "Bei Claude Code angemeldet",
+  "claude.signedInAs": "Angemeldet: {who}",
+  "claude.expires": "gültig bis {date}",
+  "claude.logout": "Abmelden",
+  "claude.logoutConfirm": "Auf dem Server von Claude Code abmelden?",
+  "claude.version": "CLI {version}",
+  "claude.updateAvailable": "Update verfügbar: {version}",
+  "claude.upToDate": "aktuell",
+  "claude.update": "Update installieren",
+  "claude.updating": "Installiere …",
+  "claude.updated": "Claude Code auf {version} aktualisiert",
+  "claude.updateFailed": "Das Update ist fehlgeschlagen (Details unten)",
+  "claude.updateAdmin": "Ein Administrator kann es installieren.",
+  "claude.checkNow": "Nach Updates suchen",
+  "claude.updateLog": "Ausgabe des Updates",
+  "check.menu": "Prüfung nach jedem Schritt …",
+  "check.title": "Prüfung nach jedem Schritt",
+  "check.hint": "Befehl, der in {project} nach jedem Schritt mit Dateiänderungen läuft (z. B. cargo test, npm test). Das Ergebnis erscheint als Badge am Schritt. Leer = aus.",
+  "check.saved": "Prüfung gespeichert",
+  "check.removed": "Prüfung entfernt",
+  "check.running": "Prüfung läuft …",
+  "check.passed": "Prüfung bestanden",
+  "check.failed": "Prüfung fehlgeschlagen",
+  "check.timeout": "Prüfung: Zeitüberschreitung",
+  "check.noOutput": "(keine Ausgabe)",
+  "check.fix": "Vom Agenten beheben lassen",
+  "check.fixPrompt": "Die Prüfung des Projekts ist nach deiner letzten Änderung fehlgeschlagen. Bitte beheben und erneut ausführen. Ausgabe:",
+  "projectDefaults.save": "Als Projekt-Standard verwenden",
+  "projectDefaults.remove": "Projekt-Standard entfernen",
+  "projectDefaults.hint": "Neue Chats in diesem Projektordner starten mit Modell, Modus, Farbe, Anweisungen und Ordner dieses Chats",
+  "projectDefaults.saved": "Neue Chats in diesem Projekt starten wie dieser",
+  "projectDefaults.removed": "Projekt-Standard entfernt",
+  "outbox.waiting": "{n} Nachricht(en) warten auf eine Verbindung",
+  "outbox.sendNow": "Jetzt senden",
+  "outbox.discard": "Verwerfen",
+  "outbox.saved": "Keine Verbindung – die Nachricht ist gespeichert und wird gesendet, sobald du wieder online bist",
+  "project.open": "Projektübersicht",
+  "project.newChat": "Neuer Chat",
+  "project.today": "Heute",
+  "project.yesterday": "Gestern",
+  "project.chats": "{n} Chat(s)",
+  "project.files": "{n} Datei(en) geändert",
+  "project.archived": "{n} archiviert",
+  "project.checksFailed": "{n} Prüfung(en) fehlgeschlagen",
+  "project.empty": "In diesem Ordner gibt es noch keine Chats.",
+  "viewer.title": "Bildbetrachter",
+  "viewer.open": "In neuem Tab öffnen",
+  "viewer.download": "Herunterladen",
   "media.next": "Nächstes",
   "media.back": "Zurück zur Übersicht",
+  "chat.turnUsageHint": "Alle {n} Anfragen dieser Antwort (Tokens gesendet/empfangen, Kosten)",
   "chat.reviewRound": "Review {round}: Änderungen nötig",
   "agents.refine": "Review-Schleife",
   "agents.refineRounds": "Review-Runden pro Aufgabe",
@@ -712,6 +806,7 @@ export const de: Messages = {
   "plan.implementPrompt": "Setze den Plan um.",
 
   "tool.input": "Eingabe",
+  "tool.open3d": "In 3D-Ansicht öffnen",
   "tool.output": "Ausgabe",
   "tool.todosUpdated": "Aufgaben aktualisiert ({done}/{total} erledigt)",
   "tool.todos": "Aufgaben",
@@ -721,6 +816,16 @@ export const de: Messages = {
 
   "permission.title": "Freigabe erforderlich",
   "permission.allowOnce": "Einmal erlauben",
+  "permission.projectCommand": "„{prefix}“ in diesem Projekt immer erlauben",
+  "permission.projectTool": "{tool} in diesem Projekt immer erlauben",
+  "permission.projectHint": "Wird für diesen Projektordner gemerkt: in allen Chats, auch nach einem Neustart. Widerrufen im ⋯-Menü.",
+  "permission.explain": "Was macht das?",
+  "permission.explaining": "Erkläre …",
+  "permProject.title": "Projekt-Freigaben",
+  "permProject.intro": "In diesem Projektordner ohne Rückfrage erlaubt (alle Chats):",
+  "permProject.empty": "Für dieses Projekt ist noch nichts freigegeben. Der Knopf „… in diesem Projekt immer erlauben“ bei einer Freigabe-Anfrage legt hier Einträge an.",
+  "permProject.revoke": "Widerrufen",
+  "permProject.menu": "Projekt-Freigaben",
   "permission.alwaysTool": "{tool} in dieser Session immer erlauben",
   "permission.alwaysCommand": "„{prefix}“ in dieser Session immer erlauben",
   "permission.reject": "Ablehnen",

web/src/i18n/en.ts

@@ -355,6 +355,7 @@ export const en = {
   "media.filter.all": "All",
   "media.filter.image": "Images",
   "media.filter.video": "Videos",
+  "media.filter.model": "3D",
   "media.filter.audio": "Audio",
   "media.source.generated": "generated",
   "media.source.tool": "tool output",
@@ -365,7 +366,100 @@ export const en = {
   "media.open": "Open",
   "media.prev": "Previous",
   "media.next": "Next",
+  "msg.actions": "Message actions",
+  "msg.copy": "Copy text",
+  "msg.copied": "Copied",
+  "msg.copyFailed": "Copying is not possible here",
+  "msg.quote": "Quote in reply",
+  "msg.forkHere": "Fork from here",
+  "chat.jumpPrevOwn": "Previous own message",
+  "viewer.annotate": "Mark up",
+  "viewer.annotateFailed": "This image cannot be edited",
+  "viewer.attach": "Attach to message",
+  "viewer.undo": "Undo",
+  "viewer.tool.pen": "Pen",
+  "viewer.tool.arrow": "Arrow",
+  "viewer.tool.rect": "Rectangle",
+  "viewer.useInChat": "Use in message",
+  "viewer.attached": "Image attached to the message",
+  "turn.changes": "{n} file(s) changed",
+  "turn.noChanges": "No file changes found for this turn.",
+  "turn.noDiff": "No text diff available.",
+  "turn.truncated": "The diff is shortened.",
+  "turn.new": "new",
+  "turn.deleted": "deleted",
+  "turn.rollback": "Roll back to before this turn",
+  "job.plan": "Plan as automation",
+  "job.planHint": "Turns this chat into instructions for a recurring automation (switched off until you set the schedule)",
+  "job.drafting": "Drafting the automation from this chat …",
+  "color.label": "Colour of this chat",
+  "color.red": "Red",
+  "color.orange": "Orange",
+  "color.yellow": "Yellow",
+  "color.green": "Green",
+  "color.aqua": "Teal",
+  "color.blue": "Blue",
+  "color.purple": "Purple",
+  "claude.title": "Claude Code",
+  "claude.intro": "Chats with a \"Claude Code\" model are run by the Claude Code CLI on the server – with your Claude subscription or Anthropic Console account. Sign in here once; approvals, push and the sandbox work as usual.",
+  "claude.notInstalled": "Claude Code is not installed on the server.",
+  "claude.console": "Anthropic Console (API billing) instead of the Claude subscription",
+  "claude.signIn": "Sign in",
+  "claude.openLogin": "Open the sign-in page",
+  "claude.step1": "Sign in at Anthropic in any browser (also on another device) and allow access.",
+  "claude.step2": "Paste the code the page shows afterwards:",
+  "claude.codePlaceholder": "Code from the sign-in page",
+  "claude.confirm": "Confirm",
+  "claude.signedIn": "Signed in to Claude Code",
+  "claude.signedInAs": "Signed in: {who}",
+  "claude.expires": "valid until {date}",
+  "claude.logout": "Sign out",
+  "claude.logoutConfirm": "Sign out of Claude Code on the server?",
+  "claude.version": "CLI {version}",
+  "claude.updateAvailable": "Update available: {version}",
+  "claude.upToDate": "up to date",
+  "claude.update": "Install update",
+  "claude.updating": "Installing …",
+  "claude.updated": "Claude Code updated to {version}",
+  "claude.updateFailed": "The update failed (details below)",
+  "claude.updateAdmin": "An administrator can install it.",
+  "claude.checkNow": "Check for updates",
+  "claude.updateLog": "Output of the update",
+  "check.menu": "Check after each turn …",
+  "check.title": "Check after each turn",
+  "check.hint": "Command that runs in {project} after every turn that changed files (e.g. cargo test, npm test). The result appears as a badge on the turn. Empty = off.",
+  "check.saved": "Check saved",
+  "check.removed": "Check removed",
+  "check.running": "Check running …",
+  "check.passed": "Check passed",
+  "check.failed": "Check failed",
+  "check.timeout": "Check timed out",
+  "check.noOutput": "(no output)",
+  "check.fix": "Let the agent fix it",
+  "check.fixPrompt": "The check of the project failed after your last change. Please fix the cause and run it again. Output:",
+  "projectDefaults.save": "Use as project default",
+  "projectDefaults.remove": "Remove project default",
+  "projectDefaults.hint": "New chats in this project folder start with this chat's model, mode, colour, instructions and folder",
+  "projectDefaults.saved": "New chats in this project will start like this one",
+  "projectDefaults.removed": "Project default removed",
+  "outbox.waiting": "{n} message(s) waiting for a connection",
+  "outbox.sendNow": "Send now",
+  "outbox.discard": "Discard",
+  "outbox.saved": "No connection – the message is saved and sent when you are back online",
+  "project.open": "Project overview",
+  "project.newChat": "New chat",
+  "project.today": "Today",
+  "project.yesterday": "Yesterday",
+  "project.chats": "{n} chat(s)",
+  "project.files": "{n} file(s) changed",
+  "project.archived": "{n} archived",
+  "project.checksFailed": "{n} failed check(s)",
+  "project.empty": "No chats in this folder yet.",
+  "viewer.title": "Image viewer",
+  "viewer.open": "Open in new tab",
+  "viewer.download": "Download",
   "media.back": "Back to the overview",
+  "chat.turnUsageHint": "All {n} requests of this answer (tokens sent/received, cost)",
   "chat.reviewRound": "Review {round}: changes requested",
   "agents.refine": "Review loop",
   "agents.refineRounds": "Review rounds per task",
@@ -711,6 +805,7 @@ export const en = {
   "plan.implementPrompt": "Implement the plan.",
 
   "tool.input": "Input",
+  "tool.open3d": "Open in the 3D view",
   "tool.output": "Output",
   "tool.todosUpdated": "Tasks updated ({done}/{total} done)",
   "tool.todos": "Tasks",
@@ -720,6 +815,16 @@ export const en = {
 
   "permission.title": "Permission required",
   "permission.allowOnce": "Allow once",
+  "permission.projectCommand": "Always allow \"{prefix}\" in this project",
+  "permission.projectTool": "Always allow {tool} in this project",
+  "permission.projectHint": "Remembered for this project folder, in all chats, also after a restart. Revoke it in the ⋯ menu.",
+  "permission.explain": "What does this do?",
+  "permission.explaining": "Explaining …",
+  "permProject.title": "Project permissions",
+  "permProject.intro": "Allowed without asking in this project folder (all chats):",
+  "permProject.empty": "Nothing is allowed for this project yet. The button \"Always allow … in this project\" on an approval adds entries here.",
+  "permProject.revoke": "Revoke",
+  "permProject.menu": "Project permissions",
   "permission.alwaysTool": "Always allow {tool} in this session",
   "permission.alwaysCommand": "Always allow \"{prefix}\" in this session",
   "permission.reject": "Reject",

web/src/i18n/index.ts

@@ -72,6 +72,13 @@ export function fmtCompact(n: number) {
   return new Intl.NumberFormat(current, { notation: "compact", maximumFractionDigits: 1 }).format(n);
 }
 
+/** Short date and time of a message: only the time for today. */
+export function fmtMsgTime(ms: number) {
+  const d = new Date(ms);
+  const today = d.toDateString() === new Date().toDateString();
+  return new Intl.DateTimeFormat(current, today ? { timeStyle: "short" } : { dateStyle: "short", timeStyle: "short" }).format(d);
+}
+
 export function fmtCost(n: number, currency: string) {
   const digits = n !== 0 && Math.abs(n) < 1 ? 4 : 2;
   try {

web/src/outbox.ts

@@ -0,0 +1,85 @@
+import { useSyncExternalStore } from "react";
+import { ApiError, post } from "./api";
+
+/** Messages written without a connection: kept on this device and sent when it is back. */
+export interface OutboxItem {
+  id: string;
+  sessionId: string;
+  text: string;
+  effort?: string;
+  createdAt: number;
+}
+
+const KEY = "codecraft.outbox";
+const listeners = new Set<() => void>();
+let cache: OutboxItem[] | undefined;
+
+function load(): OutboxItem[] {
+  if (cache) return cache;
+  try {
+    const v = JSON.parse(localStorage.getItem(KEY) ?? "[]");
+    cache = Array.isArray(v) ? v : [];
+  } catch {
+    cache = [];
+  }
+  return cache!;
+}
+
+function save(items: OutboxItem[]) {
+  cache = items;
+  try {
+    localStorage.setItem(KEY, JSON.stringify(items));
+  } catch {
+    // Storage blocked: the list still works until the page is closed.
+  }
+  listeners.forEach((l) => l());
+}
+
+export function addToOutbox(sessionId: string, text: string, effort?: string) {
+  save([...load(), { id: `${Date.now()}-${Math.random().toString(36).slice(2, 8)}`, sessionId, text, effort, createdAt: Date.now() }]);
+}
+
+export function removeFromOutbox(id: string) {
+  save(load().filter((i) => i.id !== id));
+}
+
+export function useOutbox(sessionId: string): OutboxItem[] {
+  const all = useSyncExternalStore(
+    (l) => {
+      listeners.add(l);
+      return () => listeners.delete(l);
+    },
+    () => load(),
+  );
+  return all.filter((i) => i.sessionId === sessionId);
+}
+
+/** True for failures of the connection itself (not answers of the server). */
+export function isOffline(e: unknown) {
+  return !(e instanceof ApiError) && (!navigator.onLine || e instanceof TypeError);
+}
+
+let flushing = false;
+
+/** Send the waiting messages of a chat in order; stops at the first connection failure. Returns how many were sent. */
+export async function flushOutbox(sessionId: string): Promise<number> {
+  if (flushing) return 0;
+  flushing = true;
+  let sent = 0;
+  try {
+    for (const item of load().filter((i) => i.sessionId === sessionId)) {
+      try {
+        await post(`/sessions/${item.sessionId}/prompt`, { text: item.text, effort: item.effort });
+        removeFromOutbox(item.id);
+        sent++;
+      } catch (e) {
+        if (isOffline(e)) break;
+        // The server refused it (deleted chat, read-only …): it would never go through.
+        removeFromOutbox(item.id);
+      }
+    }
+  } finally {
+    flushing = false;
+  }
+  return sent;
+}

web/src/store.ts

@@ -9,6 +9,7 @@ import type {
   PermissionRequest,
   QuestionRequest,
   ServerEvent,
+  TurnCheckInfo,
   Session,
 } from "./types";
 
@@ -51,6 +52,8 @@ export interface State {
   waiting: Record<string, string | undefined>;
   /** Compaction running in a session (auto = context nearly full). */
   compacting: Record<string, { auto: boolean; tokens: number | null; limit: number | null; since: number } | undefined>;
+  /** Check results per session, by the id of the turn's last answer. */
+  checks: Record<string, Record<string, TurnCheckInfo> | undefined>;
 }
 
 let state: State = {
@@ -73,6 +76,7 @@ let state: State = {
   steps: {},
   waiting: {},
   compacting: {},
+  checks: {},
 };
 
 const listeners = new Set<() => void>();
@@ -203,6 +207,11 @@ export function applyEvent(ev: ServerEvent) {
         },
       }));
       break;
+    case "check_result": {
+      const info: TurnCheckInfo = { message_id: ev.message_id, status: ev.status, exit_code: ev.exit_code, duration_ms: ev.duration_ms, output: ev.output };
+      setState((s) => ({ checks: { ...s.checks, [ev.session_id]: { ...s.checks[ev.session_id], [ev.message_id]: info } } }));
+      break;
+    }
     case "mcp_status":
       setState(() => ({ mcp: ev.servers }));
       break;
@@ -259,6 +268,12 @@ export async function loadSession(id: string) {
   }));
 }
 
+/** Check results of a chat (badges on its turns). */
+export async function loadChecks(id: string) {
+  const list = await get<TurnCheckInfo[]>(`/sessions/${id}/checks`).catch(() => [] as TurnCheckInfo[]);
+  setState((s) => ({ checks: { ...s.checks, [id]: { ...Object.fromEntries(list.map((c) => [c.message_id, c])), ...s.checks[id] } } }));
+}
+
 /** Older messages before the loaded ones (scrolling up). Returns how many came. */
 export async function loadOlder(id: string, stopAtSummary = true): Promise<number> {
   const first = getState().messages[id]?.[0];

web/src/styles.css

@@ -439,6 +439,9 @@ button.session-group:hover {
 .main {
   flex: 1;
   min-width: 0;
+  /* Nothing in the bars may widen the page (and push it sideways on phones). */
+  overflow-x: clip;
+  max-width: 100vw;
   display: flex;
   flex-direction: column;
   min-height: 0;
@@ -456,7 +459,8 @@ button.session-group:hover {
 }
 .topbar .grow {
   flex: 1;
-  min-width: 0;
+  /* The title stays readable: with many chips they wrap into a second row instead. */
+  min-width: min(160px, 40vw);
 }
 .topbar h1 {
   font-size: 15px;
@@ -517,6 +521,31 @@ button.session-group:hover {
 
 .msg {
   margin-bottom: 14px;
+  position: relative;
+}
+/* Message actions: hover on desktop, faintly visible on touch. */
+.msg-menu {
+  position: absolute;
+  top: 2px;
+  right: 2px;
+  z-index: 3;
+  opacity: 0;
+  transition: opacity 0.12s;
+}
+.msg:hover > .msg-menu,
+.msg-menu:focus-within,
+.msg-menu[open] {
+  opacity: 1;
+}
+@media (pointer: coarse) {
+  .msg-menu {
+    opacity: 0.5;
+  }
+}
+.msg-menu > summary {
+  background: var(--bg1);
+  border: 1px solid var(--bg2);
+  line-height: 0;
 }
 .msg-user {
   background: var(--bg1);
@@ -541,14 +570,16 @@ button.session-group:hover {
   background: var(--bg1);
   cursor: text;
 }
-.msg-user .msg-actions {
+.msg-time {
-  position: absolute;
-  top: 4px;
-  right: 4px;
-  display: none;
-}
-.msg-user:hover .msg-actions {
   display: block;
+  margin-top: 4px;
+  font-size: 11px;
+  color: var(--muted);
+  font-variant-numeric: tabular-nums;
+  white-space: nowrap;
+}
+.msg-user .msg-time {
+  text-align: right;
 }
 .msg-user img {
   max-height: 160px;
@@ -1356,6 +1387,23 @@ table.grid input[type="number"] {
   .topbar .path {
     display: none;
   }
+  .topbar .grow {
+    min-width: 0;
+  }
+  .topbar .chip {
+    flex-shrink: 1;
+    min-width: 0;
+    max-width: 30vw;
+    overflow: hidden;
+    text-overflow: ellipsis;
+    white-space: nowrap;
+  }
+  .menu-pop-body {
+    max-width: calc(100vw - 16px);
+  }
+  .menu-pop-body .mobile-only {
+    display: block;
+  }
   .topbar button.small {
     padding: 2px 5px;
   }
@@ -2525,6 +2573,7 @@ button.danger-solid {
   height: 0;
   display: flex;
   justify-content: center;
+  gap: 10px;
   pointer-events: none;
   z-index: 4;
 }
@@ -4398,3 +4447,426 @@ span.chat-tab > button {
   text-overflow: ellipsis;
   white-space: nowrap;
 }
+
+/* Tokens and cost under each answer. */
+.turn-usage {
+  display: flex;
+  align-items: center;
+  gap: 2px;
+  margin: -6px 0 12px;
+  font-size: 11px;
+  color: var(--muted);
+  font-variant-numeric: tabular-nums;
+}
+
+.media-badge {
+  position: absolute;
+  top: 6px;
+  left: 6px;
+  font-size: 11px;
+  font-weight: 600;
+  padding: 1px 6px;
+  border-radius: 4px;
+  background: var(--bg0);
+  color: var(--accent);
+}
+.media-model {
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+  gap: 12px;
+  max-height: 100%;
+}
+.media-model img {
+  max-height: calc(100% - 50px);
+  max-width: 100%;
+  object-fit: contain;
+}
+.media-model > .icon {
+  width: 64px;
+  height: 64px;
+  color: var(--accent);
+}
+
+/* --- image viewer ------------------------------------------------------------ */
+.viewer-overlay {
+  position: fixed;
+  inset: 0;
+  z-index: 200;
+  background: rgba(0, 0, 0, 0.92);
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  overflow: hidden;
+  touch-action: none;
+  overscroll-behavior: contain;
+}
+.viewer-img {
+  max-width: 100vw;
+  max-height: 100dvh;
+  object-fit: contain;
+  user-select: none;
+  -webkit-user-drag: none;
+  touch-action: none;
+  transition: transform 0.08s ease-out;
+  background: repeating-conic-gradient(#222 0% 25%, #111 0% 50%) 50% / 16px 16px;
+}
+.viewer-bar {
+  position: absolute;
+  top: 0;
+  left: 0;
+  right: 0;
+  z-index: 1;
+  display: flex;
+  align-items: center;
+  gap: 6px;
+  padding: 8px 10px;
+  padding-top: max(8px, env(safe-area-inset-top));
+  background: linear-gradient(rgba(0, 0, 0, 0.6), transparent);
+  color: #eee;
+  font-size: 13px;
+}
+.viewer-bar .button,
+.viewer-bar button {
+  color: #eee;
+}
+.viewer-count {
+  font-variant-numeric: tabular-nums;
+  min-width: 3.5em;
+}
+.viewer-name {
+  flex: 1;
+  min-width: 0;
+  overflow: hidden;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+  opacity: 0.8;
+}
+.viewer-nav {
+  position: absolute;
+  top: 50%;
+  transform: translateY(-50%);
+  z-index: 1;
+  width: 40px;
+  height: 56px;
+  border: none;
+  border-radius: 8px;
+  background: rgba(0, 0, 0, 0.45);
+  color: #eee;
+}
+.viewer-nav.prev {
+  left: 6px;
+}
+.viewer-nav.next {
+  right: 6px;
+}
+@media (pointer: coarse) {
+  .viewer-nav {
+    display: none;
+  }
+}
+/* Thumbnails invite a tap. */
+.chat img.inline-image,
+.image-refs img,
+.user-files img,
+.image-result img,
+.svg-block img {
+  cursor: zoom-in;
+}
+
+/* --- image markup ------------------------------------------------------------ */
+.annotator {
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+  justify-content: center;
+  width: 100%;
+  height: 100%;
+  padding: 52px 8px 64px;
+}
+.annotator canvas {
+  max-width: 100%;
+  max-height: 100%;
+  object-fit: contain;
+  touch-action: none;
+  cursor: crosshair;
+  background: #111;
+  box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.15);
+}
+.annotator-tools {
+  position: absolute;
+  left: 0;
+  right: 0;
+  bottom: 0;
+  display: flex;
+  align-items: center;
+  gap: 6px;
+  flex-wrap: wrap;
+  padding: 8px 10px;
+  padding-bottom: max(8px, env(safe-area-inset-bottom));
+  background: rgba(0, 0, 0, 0.75);
+}
+.annotator-colors {
+  display: inline-flex;
+  gap: 6px;
+  margin: 0 6px;
+}
+.annotator-colors .swatch {
+  width: 22px;
+  height: 22px;
+  padding: 0;
+  border-radius: 50%;
+  border: 2px solid rgba(255, 255, 255, 0.35);
+}
+.annotator-colors .swatch.on {
+  border-color: #fff;
+  box-shadow: 0 0 0 2px rgba(255, 255, 255, 0.35);
+}
+
+/* --- approvals: explanation, session summary ------------------------------------ */
+.explain {
+  margin: 8px 0 0;
+  padding: 6px 10px;
+  border-left: 3px solid var(--purple);
+  border-radius: 4px;
+  background: var(--bg1);
+  font-size: 12.5px;
+  color: var(--fg2);
+}
+.explain .icon {
+  color: var(--purple);
+}
+.explain-btn {
+  margin-top: 6px;
+}
+.session-item .summary {
+  font-size: 12px;
+  color: var(--fg3);
+  white-space: nowrap;
+  overflow: hidden;
+  text-overflow: ellipsis;
+}
+
+/* --- changes of one turn ------------------------------------------------------- */
+.turn-changes {
+  margin: -6px 0 12px;
+}
+.turn-changes-body {
+  display: flex;
+  flex-direction: column;
+  gap: 6px;
+  margin-top: 4px;
+  padding: 6px 8px;
+  border: 1px solid var(--bg2);
+  border-radius: var(--radius);
+  background: var(--bg1);
+}
+.turn-changes-body > button {
+  align-self: flex-start;
+}
+.turn-file > summary {
+  cursor: pointer;
+  display: flex;
+  align-items: center;
+  gap: 8px;
+  font-size: 12.5px;
+}
+.turn-file .turn-stat {
+  margin-left: auto;
+  font-variant-numeric: tabular-nums;
+}
+.turn-file .turn-stat .add {
+  color: var(--green);
+}
+.turn-file .turn-stat .del {
+  color: var(--red);
+}
+.turn-file .diff {
+  max-height: 50vh;
+  overflow: auto;
+}
+
+/* --- colour tags of chats ------------------------------------------------------
+ * The tag is a name; the colour comes from the active theme (--red, --accent, …),
+ * the background is mixed into --bg0, so every theme (light or dark) stays readable. */
+[data-color="red"] { --tag: var(--red); }
+[data-color="orange"] { --tag: var(--accent2, var(--red)); }
+[data-color="yellow"] { --tag: var(--accent, var(--green)); }
+[data-color="green"] { --tag: var(--green); }
+[data-color="aqua"] { --tag: var(--aqua); }
+[data-color="blue"] { --tag: var(--blue); }
+[data-color="purple"] { --tag: var(--purple); }
+
+.chat-pane[data-color] {
+  background: color-mix(in srgb, var(--tag) 9%, var(--bg0));
+}
+.topbar[data-color] {
+  border-bottom: 2px solid var(--tag);
+  background: color-mix(in srgb, var(--tag) 14%, var(--bg0));
+}
+.session-item[data-color] {
+  box-shadow: inset 3px 0 0 var(--tag);
+}
+.color-badge {
+  padding: 0 7px;
+  border-radius: 999px;
+  color: var(--fg0);
+  background: color-mix(in srgb, var(--tag) 30%, var(--bg1));
+  border: 1px solid color-mix(in srgb, var(--tag) 60%, transparent);
+}
+.color-swatches {
+  display: flex;
+  gap: 8px;
+  padding: 6px 10px;
+}
+.color-swatches .swatch {
+  width: 20px;
+  height: 20px;
+  padding: 0;
+  border-radius: 50%;
+  background: var(--tag);
+  border: 2px solid transparent;
+}
+.color-swatches .swatch.on {
+  border-color: var(--fg0);
+  box-shadow: 0 0 0 2px var(--bg1), 0 0 0 4px var(--tag);
+}
+.chat-pane[data-color] .composer-wrap {
+  background: color-mix(in srgb, var(--tag) 9%, var(--bg0));
+}
+
+/* --- check badge of a turn ------------------------------------------------------ */
+.turn-check {
+  margin: -6px 0 12px;
+}
+.turn-check .chip {
+  border: none;
+  cursor: pointer;
+}
+.turn-check .check-passed {
+  color: var(--green);
+}
+.turn-check .check-failed,
+.turn-check .check-timeout {
+  color: var(--red);
+}
+.turn-check-body {
+  margin-top: 4px;
+  padding: 6px 8px;
+  border: 1px solid var(--bg2);
+  border-radius: var(--radius);
+  background: var(--bg1);
+}
+.turn-check-body pre {
+  margin: 0 0 6px;
+  max-height: 40vh;
+  overflow: auto;
+  white-space: pre-wrap;
+  font-size: 12px;
+}
+
+/* --- messages waiting for a connection ------------------------------------------ */
+.outbox {
+  margin: 0 12px 6px;
+  padding: 6px 10px;
+  border: 1px dashed var(--accent2, var(--accent));
+  border-radius: var(--radius);
+  background: var(--bg1);
+  font-size: 12.5px;
+}
+.outbox-head,
+.outbox-item {
+  display: flex;
+  align-items: center;
+  gap: 8px;
+}
+.outbox-item span {
+  flex: 1;
+  min-width: 0;
+  overflow: hidden;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+  color: var(--fg3);
+}
+
+/* --- project page: timeline -------------------------------------------------------- */
+.project-summary {
+  display: flex;
+  flex-wrap: wrap;
+  align-items: center;
+  gap: 8px;
+  margin-bottom: 12px;
+}
+.timeline-day h3 {
+  margin: 14px 0 6px;
+  font-size: 12px;
+  text-transform: uppercase;
+  letter-spacing: 0.04em;
+  color: var(--muted);
+}
+.timeline {
+  list-style: none;
+  margin: 0;
+  padding: 0 0 0 14px;
+  border-left: 2px solid var(--bg3);
+}
+.timeline li {
+  position: relative;
+  margin: 0 0 8px;
+}
+.timeline li::before {
+  content: "";
+  position: absolute;
+  left: -20px;
+  top: 12px;
+  width: 10px;
+  height: 10px;
+  border-radius: 50%;
+  background: var(--tag, var(--bg3));
+  border: 2px solid var(--bg0);
+}
+.timeline li > a {
+  display: block;
+  padding: 8px 12px;
+  border: 1px solid var(--bg2);
+  border-radius: var(--radius);
+  background: var(--bg1);
+  color: var(--fg1);
+  text-decoration: none;
+}
+.timeline li > a:hover {
+  border-color: var(--bg3);
+}
+.tl-title {
+  display: flex;
+  align-items: baseline;
+  gap: 8px;
+  color: var(--fg0);
+  font-weight: 600;
+}
+.tl-when {
+  margin-left: auto;
+  font-weight: 400;
+  font-size: 11.5px;
+  color: var(--muted);
+}
+.tl-summary {
+  margin-top: 2px;
+  color: var(--fg2);
+  font-size: 13px;
+}
+.tl-meta {
+  display: flex;
+  flex-wrap: wrap;
+  gap: 4px 12px;
+  margin-top: 4px;
+  font-size: 11.5px;
+  color: var(--muted);
+}
+.tl-meta .check-passed {
+  color: var(--green);
+}
+.tl-meta .check-failed,
+.tl-meta .check-timeout {
+  color: var(--red);
+}

web/src/theme.ts

@@ -23,6 +23,7 @@ export const THEMES = [
   { id: "rosepine", name: "Rosé Pine", source: "rose-pine/rose-pine-theme", license: "MIT" },
   { id: "everforest", name: "Everforest", source: "sainnhe/everforest", license: "MIT" },
   { id: "kanagawa", name: "Kanagawa", source: "rebelot/kanagawa.nvim", license: "MIT" },
+  { id: "tintenblau", name: "Tintenblau", source: "zink/tintenblau", license: "private" },
 ] as const;
 
 export type Theme = (typeof THEMES)[number]["id"];

web/src/themes/index.ts

@@ -30,3 +30,5 @@ import "./everforest-dark.css";
 import "./everforest-light.css";
 import "./kanagawa-dark.css";
 import "./kanagawa-light.css";
+import "./tintenblau-dark.css";
+import "./tintenblau-light.css";

web/src/themes/tintenblau-dark.css

@@ -0,0 +1,40 @@
+/*
+ * Tintenblau Dark
+ * Palette: zink/tintenblau (colors.toml, neovim.lua, zed.json of the desktop theme).
+ */
+:root[data-theme="tintenblau-dark"] {
+  color-scheme: dark;
+  --theme-color: #232a44;
+
+  --bg0: #232a44;
+  --bg1: #2b3352;
+  --bg2: #353e60;
+  --bg3: #4a5478;
+  --fg0: #f5efe3;
+  --fg1: #eae4d6;
+  --fg2: #d6d0c2;
+  --fg3: #bdcfd4;
+  --muted: #8e96b4;
+
+  --accent: #7aa0cc;
+  --accent2: #d4b46a;
+  --on-accent: #232a44;
+  --red: #d47a6a;
+  --green: #96b4bc;
+  --aqua: #96b4bc;
+  --blue: #7aa0cc;
+  --purple: #c896b2;
+
+  --diff-add: rgba(150, 180, 188, 0.16);
+  --diff-del: rgba(212, 122, 106, 0.16);
+  --shadow: 0 6px 24px rgba(10, 14, 30, 0.45);
+
+  --syntax-keyword: #c896b2;
+  --syntax-string: #d47a6a;
+  --syntax-number: #96b4bc;
+  --syntax-comment: #8e96b4;
+  --syntax-function: #7aa0cc;
+  --syntax-type: #d4b46a;
+  --syntax-variable: #eae4d6;
+  --syntax-meta: #baa0c4;
+}

web/src/themes/tintenblau-light.css

@@ -0,0 +1,40 @@
+/*
+ * Tintenblau (light)
+ * Palette: zink/tintenblau (colors.toml, neovim.lua, zed.json of the desktop theme).
+ */
+:root[data-theme="tintenblau-light"] {
+  color-scheme: light;
+  --theme-color: #f0ead9;
+
+  --bg0: #f0ead9;
+  --bg1: #e6dfd0;
+  --bg2: #dbd3c1;
+  --bg3: #c9c0ac;
+  --fg0: #0f1628;
+  --fg1: #1e2a4a;
+  --fg2: #3a3f5a;
+  --fg3: #5e5a6a;
+  --muted: #8a8694;
+
+  --accent: #2a3f6f;
+  --accent2: #6a4a2c;
+  --on-accent: #f0ead9;
+  --red: #8a3028;
+  --green: #4a5a3a;
+  --aqua: #3a5a6a;
+  --blue: #3a5a8a;
+  --purple: #5a4a72;
+
+  --diff-add: rgba(74, 90, 58, 0.14);
+  --diff-del: rgba(138, 48, 40, 0.12);
+  --shadow: 0 6px 24px rgba(30, 42, 74, 0.16);
+
+  --syntax-keyword: #2a3f6f;
+  --syntax-string: #8a3028;
+  --syntax-number: #5a4a72;
+  --syntax-comment: #8a8694;
+  --syntax-function: #3a5a6a;
+  --syntax-type: #6a4a2c;
+  --syntax-variable: #1e2a4a;
+  --syntax-meta: #4a5a3a;
+}

web/src/types.ts

@@ -31,6 +31,8 @@ export interface Usage {
   output_tokens: number;
   cache_read_tokens: number;
   cache_write_tokens: number;
+  /** Cost of the request (charged, or valued at list prices for plan requests). */
+  cost?: number;
 }
 
 export interface Message {
@@ -57,6 +59,10 @@ export interface Session {
   parent_id?: string;
   created_at: number;
   updated_at: number;
+  /** One line "where things stand" (small model), for the session list. */
+  summary?: string;
+  /** Colour tag: a palette name (red … purple), drawn in the colours of the theme. */
+  color?: string;
   todos: Todo[] | null;
   last_usage?: Usage | null;
   busy?: boolean;
@@ -110,6 +116,16 @@ export interface QuestionRequest {
   questions: Question[];
 }
 
+/** Result of the project's check command after a turn. */
+export type CheckStatus = "running" | "passed" | "failed" | "timeout";
+export interface TurnCheckInfo {
+  message_id: string;
+  status: CheckStatus;
+  exit_code: number | null;
+  duration_ms: number;
+  output: string;
+}
+
 export type ServerEvent =
   | { type: "session_updated"; session: Session }
   | { type: "session_deleted"; session_id: string }
@@ -127,6 +143,7 @@ export type ServerEvent =
   | { type: "waiting"; session_id: string; reason: string | null }
   | { type: "queue_updated"; session_id: string; items: QueueItem[] }
   | { type: "step_started"; session_id: string; message_id: string; started_at: number; prompt_tokens: number; estimated: boolean }
+  | { type: "check_result"; session_id: string; message_id: string; status: CheckStatus; exit_code: number | null; duration_ms: number; output: string }
   | { type: "compaction"; session_id: string; state: "started" | "done" | "failed"; auto: boolean; tokens: number | null; limit: number | null }
   | { type: "mcp_status"; servers: Record<string, McpServerStatus> }
   | { type: "resync" };

web/src/whatsnew.ts

@@ -3,6 +3,28 @@
  * under "unreleased"; scripts/release.sh renames the key to the release version.
  */
 export const WHATS_NEW: Record<string, { en: string[]; de: string[] }> = {
+  "202611-00026": {
+    en: [
+      "Claude Code as an engine: sign in under Settings → Account, then pick a “Claude Code” model",
+      "Image viewer, message menu, colour tags for chats, approvals from push notifications, check after each turn, project page",
+    ],
+    de: [
+      "Claude Code als Engine: unter Einstellungen → Konto anmelden, dann ein „Claude Code“-Modell wählen",
+      "Bildbetrachter, Nachrichtenmenü, Farben für Chats, Freigaben per Push, Prüfung nach jedem Schritt, Projektseite",
+    ],
+  },
+  "202611-00024": {
+    en: ["3D models with fal.ai: from an image (also pasted into the chat), a text prompt or both – open them in the 3D view"],
+    de: ["3D-Modelle mit fal.ai: aus einem Bild (auch eingefügt), einem Text oder beidem – öffnen in der 3D-Ansicht"],
+  },
+  "202611-00023": {
+    en: ["Tokens and cost under every answer; the total cost of chats with opencode Go is shown correctly again"],
+    de: ["Tokens und Kosten unter jeder Antwort; der Gesamtpreis von Chats mit opencode Go stimmt wieder"],
+  },
+  "202611-00022": {
+    en: ["New theme “Tintenblau” (Settings → General → Theme)"],
+    de: ["Neues Theme „Tintenblau“ (Einstellungen → Allgemein → Theme)"],
+  },
   "202611-00021": {
     en: ["Git commits of agents name the model: “Co-Authored-By: <model> (<provider>) via CodeCraft” (Settings → General)"],
     de: ["Git-Commits von Agenten nennen das Modell: „Co-Authored-By: <Modell> (<Anbieter>) via CodeCraft“ (Einstellungen → Allgemein)"],