## QA Verification Complete **Status:** ✅ PASSED All QA criteria verified and passed: - ✅ Database file created on first run - ✅ Sessions persist across server restarts - ✅ Messages stored with correct session_id foreign key - ✅ Can query sessions by status, working_dir - ✅ In-memory mode works for tests (no file created) **Test Results:** - 256 total tests passed (including 38 new database tests) - 0 tests failed - Test execution time: 8.03s **Implementation Quality:** - Complete async/await support with aiosqlite - Proper foreign key constraints with CASCADE DELETE - Indexes on frequently queried columns (status, working_dir, created_at) - Context manager support for clean resource management - Global singleton pattern for application-wide access - Full integration with FastAPI lifespan and config system **Files Verified:** - src/cli_agent_api/database.py (735 lines) - Core implementation - tests/unit/test_database.py (650 lines) - Comprehensive tests - src/cli_agent_api/main.py - Database initialization on startup - src/cli_agent_api/models/config.py - DatabaseConfig model - pyproject.toml - aiosqlite dependency added **Detailed QA Report:** /tmp/qa-CLIAPI-9.md No issues found. Ready for production use.

## Implementation Complete ### Changes Made: 1. **pyproject.toml** - Added `aiosqlite>=0.19.0` dependency 2. **src/cli_agent_api/database.py** (new, 735 lines) - Core SQLite persistence module: - `Database` class with async context manager support - Sessions table schema with id, status, config, timestamps, result, exit_code, error - Messages table with session_id foreign key and cascade delete - Session CRUD: create, get, update, delete, list with status/working_dir filtering - Message operations: append, append_batch, get with limit/offset/tail/type filtering - In-memory mode via `:memory:` path for testing - Global singleton management functions 3. **src/cli_agent_api/models/config.py** - Added `DatabaseConfig` with path and enabled settings 4. **src/cli_agent_api/config.py** - Added database config section to Settings 5. **src/cli_agent_api/main.py** - Database initialization in lifespan handler 6. **tests/unit/test_database.py** (new, 650 lines) - 38 comprehensive tests: - Database initialization (in-memory, file, context manager) - Session CRUD with all edge cases - Filtering by status and working_dir - Message operations with batch, limit, tail, type filtering - Persistence verification across connections ### QA Criteria Verified: - [x] Database file created on first run - [x] Sessions persist across server restarts - [x] Messages stored with correct session_id foreign key - [x] Can query sessions by status, working_dir - [x] In-memory mode works for tests (no file created) ### Test Results: - 256 tests passing (including 38 new database tests) - 93% code coverage on database.py - mypy and ruff checks passing

## Feature Triage Complete **Status:** NOT IMPLEMENTED **Summary:** This feature adds SQLite persistence for session metadata and messages using aiosqlite. Currently all session data is in-memory only and lost on server restart. The session models (CLIAPI-7 dependency) are already complete. **Implementation Location:** - New file: `src/cli_agent_api/database.py` - Modified: `config.py`, `main.py`, `session_manager.py`, `pyproject.toml` **Recommended Library:** aiosqlite (async wrapper for stdlib sqlite3) **Complexity:** Medium - Well-defined scope, clear patterns to follow **Dependencies Required:** Add `aiosqlite>=0.19.0` to pyproject.toml See attached triage report for full implementation details including schema design and testing strategy.