monthly-review

# Monthly Review Generate a month-over-month productivity retrospective from Agent Monitor data. ## Input The user provides: **$ARGUMENTS** This may be: - "this month" or empty (default: the current calendar month to date) - "last month" for the previous full calendar month - A specific month: "2026-02" or "February 2026" The comparison period is always the immediately preceding calendar month. ## Data Sources | Endpoint | Returns | |----------|---------| | `GET /api/analytics` | `daily_sessions` and `daily_events` (365d) for monthly bucketing and trends; `tokens` (total_input/output/cache_read/cache_write — baselines pre-summed); `tool_usage` (top 20); `sessions_by_status` | | `GET /api/sessions?limit=500` | Sessions with `started_at`, `ended_at`, `status`, `model`, `cwd`, `cost`, and `metadata` (turn_count, thinking_blocks) — for per-project (cwd) grouping and completion rate | | `GET /api/pricing/cost` | `total_cost` and per-model `breakdown` (input/output/cache tokens, cost, matched_rule) | ## Report Sections ### 1. Month at a Glance Compare the target month to the prior month in a table: | Metric | This Month | Last Month | Change | |--------|-----------|------------|--------| | Sessions | N | N | ▲/▼ N% | | Total Cost | $X.XXXX | $X.XXXX | ▲/▼ N% | | Tokens (in/out/cache) | N | N | ▲/▼ N% | | Completion Rate | N% | N% | ▲/▼ N pts | | Active Days | N | N | ▲/▼ | Derive monthly buckets from `daily_sessions` / `daily_events`. Completion rate = `completed session...