- GET /metrics (bearer server.metrics_token): build info, users, sessions, pending requests, per-model request/token/cost counters, provider_up - CODECRAFT_LOG_FORMAT=json for one JSON object per log line - Providers are probed every 5 minutes via their model list; status shown in the provider settings with a manual re-check Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>