## QA PASSED ✅ **Verification Date:** 2026-01-03 **QA Agent:** code-verification-qa **Commit:** 5b0cd5c ### Summary All requirements verified and working correctly. Implementation is production-ready. ### Test Results - ✅ **218 unit tests** passed (including 33 new session manager tests) - ✅ **86 integration tests** passed - ✅ **All 5 QA criteria** verified with evidence ### Requirements Verification 1. ✅ Creates session and starts subprocess 2. ✅ Session status updates: pending → running → completed/failed 3. ✅ Cancel sends SIGTERM and updates status to cancelled 4. ✅ List supports filtering by status, working_dir 5. ✅ Respects max_concurrent_sessions limit (returns 429) ### Code Quality - Proper async/await patterns throughout - Comprehensive error handling with specific exception types - Thread-safe with asyncio.Lock - Semaphore-based concurrency control - Excellent test coverage - Well-documented with docstrings ### Bonus Features - Message streaming via `subscribe()` - Batch message retrieval via `get_messages()` - Graceful shutdown via `cleanup()` ### Issues Found **None.** No bugs or quality issues identified. ### Recommendation **Approve for merge to main.** Implementation fully satisfies all requirements. Full QA report: `/tmp/qa-CLIAPI-10.md`

## Implementation Complete ### Changes Made Implemented the SessionManager class in `src/cli_agent_api/services/session_manager.py:95-758` with full session lifecycle management: **Core Methods:** - `create_session()` - Creates session state, starts Claude CLI subprocess, returns SessionInfo - `get_session()` - Retrieves session by ID, raises SessionNotFoundError if missing - `list_sessions()` - Filters by status and working_dir prefix, supports pagination - `cancel_session()` - Sends SIGTERM to process, updates status to CANCELLED - `subscribe()` - AsyncIterator for streaming messages with replay from index - `get_messages()` - Get messages with limit/offset/types/tail filtering - `cleanup()` - Cancels all running sessions for graceful shutdown **Technical Implementation:** - `SessionState` dataclass tracks process handle, messages, subscribers, and metadata - `asyncio.Semaphore` enforces `max_concurrent_sessions` limit - Returns `429 RateLimitedError` when concurrency limit exceeded - Background `_read_output()` task processes JSONL stdout and broadcasts to subscribers - `_build_command()` translates SessionConfig to claude CLI arguments - Proper semaphore release in finally blocks for all error paths **Status Transitions Supported:** - `pending` → `running` (on subprocess start) - `running` → `waiting_permission` (on permission_request message) - `running` → `completed` (exit code 0) - `running` → `failed` (non-zero exit code) - `running/waiting_permission/pending` → `cancelled` (on cancel) ### Test Results - Added 33 unit tests in `tests/unit/test_session_manager.py` - All 218 unit tests pass - All 86 integration tests pass ### Commit 5b0cd5c on branch CLIAPI-10

## Feature Triage Complete **Status:** NOT IMPLEMENTED (stub file exists) **Summary:** - `services/session_manager.py` exists but contains only a docstring (1 line) - SessionConfig, SessionInfo, SessionStatus models are complete (CLIAPI-7) - ClaudeWrapper (CLIAPI-8) is complete and ready for use - CLIAPI-9 (session database) is still in triage - **blocking dependency** **Key Findings:** - Dependency on CLIAPI-8: **SATISFIED** (ClaudeWrapper complete) - Dependency on CLIAPI-9: **NOT SATISFIED** (still in triage) - No new packages needed - uses asyncio, signal, datetime - Session models already defined in models/session.py **Recommended Approach:** Implement with in-memory storage first, add database persistence when CLIAPI-9 is done. This unblocks downstream features (streaming, session router, etc.). **Implementation Location:** - Primary: `src/cli_agent_api/services/session_manager.py` - Creates: `SessionManager` class with create/get/list/cancel methods - Uses: `asyncio.Semaphore` for max concurrent limit, `asyncio.Lock` for thread safety **Complexity:** Medium-High (~400-500 lines + tests) See full triage report attached as document.