Release v202611-00023

- opencode Go reports plan requests as cost 0 with the usage in allowance;
  ModelConfig::cost values them at the model's list prices (charged amounts
  and free requests stay as reported). Rows booked at 0 are valued once on
  start (idempotent).
- opencode's price list now has per-duration cache prices for some models
  ({"30m": ..., "12h": ...}): the shortest duration is used, also in tiers.
  Saving the provider's models failed with "untagged enum ModelEntry".
- Each answer shows tokens sent/received and the cost of the turn's requests
  (usage.cost filled when messages are saved and loaded).
- The chat title keeps a minimum width in a crowded top bar.

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

CHANGELOG.md

@@ -3,6 +3,39 @@
 All notable changes to CodeCraft. Versions follow [Semantic Versioning](https://semver.org/);
 until 1.0, minor versions may contain breaking changes.
 
+## [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
+
+- **Commits of agents name the model:** every `git commit` an agent makes gets the trailer
+  `Co-Authored-By: <model> (<provider>) via CodeCraft` (a git wrapper in the agent shell, also in
+  the sandbox; your own commits stay unchanged). The text is set under *Settings → General*
+  (`server.commit_trailer`, `{model}`, `{provider}`, `{model_id}`; empty = off).
+
 ## [v202611-00020] – 2026-11-11
 
 ### Added

Dockerfile

@@ -96,6 +96,8 @@ COPY --from=cli /out /app/cli
 # Used with a mounted /var/run/docker.sock (see docs/MOVING.md, --docker-sock).
 COPY --from=dockercli /docker /usr/local/bin/docker
 COPY server/ghidra /app/ghidra
+# git for agent shells: commits get the co-author trailer of the model (server.commit_trailer).
+COPY --chmod=755 docker/git-coauthor /usr/local/lib/codecraft/bin/git
 COPY server/resources /app/resources
 # The agent's home lives on the data volume: tools it installs in user space
 # (pip --user, pipx, rustup, npm -g, downloaded binaries) survive rebuilds.

README.md

@@ -11,7 +11,7 @@
 </p>
 
 <p align="center">
-  <img alt="Version v202611-00020" src="https://img.shields.io/badge/version-v202611--00020-d69e2e?style=flat-square">
+  <img alt="Version v202611-00023" src="https://img.shields.io/badge/version-v202611--00023-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">
@@ -296,6 +296,7 @@ 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 {

docker/git-coauthor

@@ -0,0 +1,21 @@
+#!/bin/bash
+# git for the shells of CodeCraft agents: `git commit` gets the co-author trailer from
+# $CODECRAFT_COMMIT_TRAILER (model, provider, CodeCraft). Everything else goes to the real
+# git unchanged. Git itself skips the trailer when the message already ends with it.
+real=${CODECRAFT_REAL_GIT:-/usr/bin/git}
+[[ -n $CODECRAFT_COMMIT_TRAILER ]] || exec "$real" "$@"
+# The subcommand comes after git's global options (-C dir, -c key=value, --git-dir=…).
+i=1
+while (( i <= $# )); do
+  case ${!i} in
+    -C | -c | --git-dir | --work-tree | --namespace | --exec-path | --config-env) i=$((i + 2)) ;;
+    --) break ;;
+    -*) i=$((i + 1)) ;;
+    *) break ;;
+  esac
+done
+if (( i <= $# )) && [[ ${!i} == commit ]]; then
+  # Right after "commit", so it stays an option even before "-- <paths>".
+  exec "$real" "${@:1:i}" --trailer "$CODECRAFT_COMMIT_TRAILER" "${@:i+1}"
+fi
+exec "$real" "$@"

server/src/api.rs

@@ -843,6 +843,19 @@ 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 +866,7 @@ 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 +880,7 @@ 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).

server/src/app.rs

@@ -144,6 +144,11 @@ 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() {
-                    t.insert("cache_read_price".into(), o["cache"]["read"].clone());
-                }
-                if o["cache"]["write"].is_number() {
-                    t.insert("cache_write_price".into(), o["cache"]["write"].clone());
+                for (key, k) in [("read", "cache_read_price"), ("write", "cache_write_price")] {
+                    let p = price_of(&o["cache"][key]);
+                    if !p.is_null() {
+                        t.insert(k.into(), p);
+                    }
                 }
             }
         }
@@ -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"],
-        "output_price": output["price"],
-        "cache_read_price": input["cache"]["read"],
-        "cache_write_price": input["cache"]["write"],
+        "input_price": price_of(&input["price"]),
+        "output_price": price_of(&output["price"]),
+        "cache_read_price": price_of(&input["cache"]["read"]),
+        "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/config.rs

@@ -307,8 +307,13 @@ pub struct ServerConfig {
     /// Bearer token for GET /metrics (Prometheus); empty = /metrics disabled.
     #[serde(skip_serializing_if = "String::is_empty")]
     pub metrics_token: String,
+    /// Trailer added to every git commit an agent makes ({model}, {provider}, {model_id});
+    /// empty = off.
+    pub commit_trailer: String,
 }
 
+pub const DEFAULT_COMMIT_TRAILER: &str = "Co-Authored-By: {model} ({provider}) via CodeCraft";
+
 impl Default for ServerConfig {
     fn default() -> Self {
         Self {
@@ -327,6 +332,7 @@ impl Default for ServerConfig {
             max_upload_mb: 500,
             update_url: "https://git.familie-zink.org/api/v1/repos/zink/codecraft/releases/latest".into(),
             metrics_token: String::new(),
+            commit_trailer: DEFAULT_COMMIT_TRAILER.into(),
         }
     }
 }

server/src/runner.rs

@@ -1113,7 +1113,8 @@ 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() });

server/src/store.rs

@@ -653,6 +653,39 @@ 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> {

server/src/tools/bash.rs

@@ -135,7 +135,7 @@ impl Tool for Bash {
 /// The bash command for a script, sandboxed for non-admin users.
 pub fn shell_command(ctx: &ToolCtx, command: &str) -> std::result::Result<Command, ToolOutput> {
     // stderr of every command (not just the last one) goes into the output.
-    let script = format!("exec 2>&1\n{command}");
+    let script = format!("exec 2>&1\n{}{command}", commit_attribution(ctx));
     Ok(match &ctx.sandbox {
         Some(spec) => {
             if !crate::sandbox::available() {
@@ -161,6 +161,36 @@ pub fn shell_command(ctx: &ToolCtx, command: &str) -> std::result::Result<Comman
     })
 }
 
+/// Directory with the git wrapper that adds the co-author trailer to commits.
+fn git_wrapper_dir() -> String {
+    std::env::var("CODECRAFT_GIT_WRAPPER").unwrap_or_else(|_| "/usr/local/lib/codecraft/bin".into())
+}
+
+/// Shell lines that make `git commit` in this command carry the co-author trailer of
+/// the session's model (see docker/git-coauthor). Set in the script itself, so it
+/// works inside the sandbox (which clears the environment) too.
+fn commit_attribution(ctx: &ToolCtx) -> String {
+    let template = ctx.app.config().server.commit_trailer.clone();
+    let dir = git_wrapper_dir();
+    if template.trim().is_empty() || !std::path::Path::new(&dir).join("git").exists() {
+        return String::new();
+    }
+    let Ok(session) = ctx.app.session(&ctx.session_id) else { return String::new() };
+    let (provider, model_id) = session.model.split_once('/').unwrap_or(("", session.model.as_str()));
+    let name = ctx.app.registry().resolve(&session.model).ok().and_then(|(_, m)| m.name).filter(|n| !n.trim().is_empty()).unwrap_or_else(|| model_id.to_string());
+    let trailer = commit_trailer(&template, &name, provider, model_id);
+    format!("export PATH={}:\"$PATH\" CODECRAFT_COMMIT_TRAILER={}\n", shell_quote(&dir), shell_quote(&trailer))
+}
+
+/// The trailer text for a model ("Co-Authored-By: DeepSeek V4.1 Flash (opencode-go) via CodeCraft").
+pub fn commit_trailer(template: &str, model: &str, provider: &str, model_id: &str) -> String {
+    template.replace("{model}", model).replace("{provider}", provider).replace("{model_id}", model_id).replace(['\n', '\r'], " ").trim().to_string()
+}
+
+fn shell_quote(s: &str) -> String {
+    format!("'{}'", s.replace('\'', "'\\''"))
+}
+
 fn tail(s: &str, max: usize) -> String {
     if s.len() <= max {
         return s.to_string();
@@ -171,3 +201,18 @@ fn tail(s: &str, max: usize) -> String {
     }
     s[start..].to_string()
 }
+
+#[cfg(test)]
+mod commit_tests {
+    use super::*;
+
+    #[test]
+    fn commit_trailer_text() {
+        assert_eq!(
+            commit_trailer(crate::config::DEFAULT_COMMIT_TRAILER, "DeepSeek V4.1 Flash", "opencode-go", "deepseek-v4.1-flash"),
+            "Co-Authored-By: DeepSeek V4.1 Flash (opencode-go) via CodeCraft"
+        );
+        assert_eq!(commit_trailer("By {model_id}\nx", "M", "p", "m-1"), "By m-1 x");
+        assert_eq!(shell_quote("it's"), "'it'\\''s'");
+    }
+}

web/src/components/ChatView.tsx

@@ -245,8 +245,10 @@ const MessageList = memo(function MessageList({
   baseDir,
   onRewind,
   highlight,
+  currency,
 }: {
   messages: Message[];
+  currency: string;
   results: Map<string, ToolResult>;
   busy: boolean;
   canEdit: boolean;
@@ -280,13 +282,52 @@ 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>;
-        return <WorkBlock key={key} messages={b.messages} steps={steps} open={!!highlight && b.messages.some((m) => m.id === highlight)} baseDir={baseDir}>{items}</WorkBlock>;
+        const usage = !(busy && i === lastWork) && <TurnUsage messages={b.messages} currency={currency} />;
+        if (i === lastWork || steps.length < 2)
+          return (
+            <div key={key}>
+              {items}
+              {usage}
+            </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}
+          </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();
@@ -825,6 +866,7 @@ 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()}>

web/src/components/Settings.tsx

@@ -248,6 +248,7 @@ function General({ cfg, reload }: { cfg: ConfigResponse; reload: () => void }) {
     small_model: s.small_model ?? "",
     currency: s.currency ?? "USD",
     auto_compact_threshold: s.auto_compact_threshold ?? 0.85,
+    commit_trailer: ((s as any).commit_trailer ?? "Co-Authored-By: {model} ({provider}) via CodeCraft") as string,
     max_parallel_subagents: s.max_parallel_subagents ?? 4,
     monthly_budget: s.monthly_budget ?? 0,
     budget_warning: s.budget_warning ?? 0.8,
@@ -271,6 +272,7 @@ function General({ cfg, reload }: { cfg: ConfigResponse; reload: () => void }) {
         { path: ["server", "small_model"], value: form.small_model },
         { path: ["server", "currency"], value: form.currency },
         { path: ["server", "auto_compact_threshold"], value: Number(form.auto_compact_threshold) },
+        { path: ["server", "commit_trailer"], value: form.commit_trailer.trim() },
         { path: ["server", "max_parallel_subagents"], value: Number(form.max_parallel_subagents) },
         { path: ["server", "monthly_budget"], value: Number(form.monthly_budget) || 0 },
         { path: ["server", "budget_warning"], value: Number(form.budget_warning) || 0.8 },
@@ -305,6 +307,9 @@ function General({ cfg, reload }: { cfg: ConfigResponse; reload: () => void }) {
           <label>{t("settings.autoCompact")}</label>
           <input type="number" min={0} max={1} step={0.05} value={form.auto_compact_threshold} onChange={(e) => setForm({ ...form, auto_compact_threshold: e.target.value })} />
           <div className="hint">{t("settings.autoCompactHint")}</div>
+          <label>{t("settings.commitTrailer")}</label>
+          <input className="mono" value={form.commit_trailer} placeholder={t("settings.commitTrailerOff")} onChange={(e) => setForm({ ...form, commit_trailer: e.target.value })} />
+          <div className="hint">{t("settings.commitTrailerHint")}</div>
           <label>{t("settings.monthlyBudgetTotal")}</label>
           <input type="number" min={0} value={form.monthly_budget} onChange={(e) => setForm({ ...form, monthly_budget: e.target.value })} />
           <div className="hint">{t("settings.monthlyBudgetHint")}</div>

web/src/i18n/de.ts

@@ -367,6 +367,7 @@ export const de: Messages = {
   "media.prev": "Vorheriges",
   "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",
@@ -770,6 +771,9 @@ export const de: Messages = {
   "settings.smallModelHint": "Für Session-Titel. Die Komprimierung nutzt das Session-Modell.",
   "settings.currency": "Währung",
   "settings.autoCompact": "Auto-Komprimierung bei",
+  "settings.commitTrailer": "Commit-Vermerk der Agenten",
+  "settings.commitTrailerOff": "aus",
+  "settings.commitTrailerHint": "Wird als Trailer an jeden Git-Commit eines Agenten angehängt. {model} = Modellname, {provider} = Anbieter, {model_id} = Modell-ID. Leer = aus. Deine eigenen Commits bleiben unverändert.",
   "settings.autoCompactHint": "Anteil des Kontextfensters (0 = aus).",
   "settings.craft": "Craft-Modus",
   "settings.cleanRoom": "Clean Room",

web/src/i18n/en.ts

@@ -366,6 +366,7 @@ export const en = {
   "media.prev": "Previous",
   "media.next": "Next",
   "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",
@@ -769,6 +770,9 @@ export const en = {
   "settings.smallModelHint": "Used for session titles. Compaction uses the session model.",
   "settings.currency": "Currency",
   "settings.autoCompact": "Auto-compact at",
+  "settings.commitTrailer": "Commit note of agents",
+  "settings.commitTrailerOff": "off",
+  "settings.commitTrailerHint": "Added as a trailer to every git commit an agent makes. {model} = model name, {provider} = provider, {model_id} = model id. Empty = off. Your own commits stay unchanged.",
   "settings.autoCompactHint": "Fraction of the context window (0 = off).",
   "settings.craft": "Craft mode",
   "settings.cleanRoom": "Clean room",

web/src/styles.css

@@ -456,7 +456,8 @@ 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;
@@ -4398,3 +4399,14 @@ 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;
+}

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 {

web/src/whatsnew.ts

@@ -3,6 +3,18 @@
  * under "unreleased"; scripts/release.sh renames the key to the release version.
  */
 export const WHATS_NEW: Record<string, { en: string[]; de: string[] }> = {
+  "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)"],
+  },
   "202611-00020": {
     en: ["Reverse engineering: decompile with Ghidra can be enabled for any mode (Settings → Agents & commands), now also for raw firmware"],
     de: ["Reverse Engineering: Dekompilieren mit Ghidra lässt sich für jeden Modus einschalten (Einstellungen → Agenten & Befehle), jetzt auch für rohe Firmware"],