feat: Claude Code Monitor — lanes, pipelines and a merged workspace

Internal SmartGift build of a Claude Code monitoring dashboard. Lanes: a durable unit of parallel agent work, one per working directory, tracked across session restarts. Managed lanes are git worktrees the dashboard provisions and can reset or remove behind a three-check destroy guard and a counted preflight; adopted lanes are directories you already own and are never destroyable. Pipelines: a lane moves through pipeline stages. A stage the agent declares with evidence renders green; a stage inferred from the tool-event stream renders dashed amber and never counts as done. Detection is forward-only within a 30-minute window, and never writes the declared stage. Workspace: one page at /run with a lane grid, the selected lane's pipeline, and a full Claude console behind a disclosure.
2026-07-29 17:07:45 +07:00
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+---
+description: >
+  One-line summary of key Agent Monitor metrics — active sessions, total
+  cost from the pricing engine, events today from daily_events, top tool
+  from tool_usage, and current model from the most recent session. Use for
+  a fast at-a-glance check without leaving the terminal.
+---
+
+# Quick Stats
+
+One-line summary of key Agent Monitor metrics.
+
+## Input
+
+The user provides: **$ARGUMENTS**
+
+Options: empty (default), "cost" (cost only), "sessions" (sessions only), "tokens" (token summary).
+
+## Data Sources
+
+| Endpoint | Returns |
+|----------|---------|
+| `GET /api/stats` | `{ total_sessions, active_sessions, active_agents, total_agents, total_events, events_today, ws_connections, agents_by_status, sessions_by_status }` |
+| `GET /api/pricing/cost` | `{ total_cost, breakdown }` |
+| `GET /api/analytics` | tokens (total_input, total_output, total_cache_read, total_cache_write — baselines pre-summed), tool_usage, daily_sessions, daily_events |
+| `GET /api/sessions?limit=1` | Most recent session for model/status |
+
+## Output
+
+Produce a single-line or compact summary:
+
+**Default format:**
+```
+📊 127 sessions | 💰 $4.2301 total cost | 🔧 4,892 events | ⚡ 3 active | 🏆 Top tool: Read (1,204)
+```
+
+**Cost format:**
+```
+💰 Total: $4.2301 | Sonnet: $3.1200 | Opus: $0.9800 | Haiku: $0.1301 | Cache efficiency: 67%
+```
+
+**Sessions format:**
+```
+📋 127 total | ✅ 98 completed | ❌ 12 errored | 🏃 3 active | 💤 14 abandoned | Rate: 87%
+```
+
+**Tokens format:**
+```
+🔤 Input: 2.4M | Output: 890K | Cache Read: 1.8M | Cache Write: 340K
+```
+
+Keep it short enough to scan in a terminal prompt.