## QA PASSED ✅ **QA Agent:** code-verification-qa **QA Date:** 2026-01-02 ### Verification Summary All QA criteria verified and passing: - ✅ Config loads from YAML file when present - ✅ Environment variables override YAML values - ✅ Missing required values raise clear validation errors - ✅ config.yaml.example documents all options with comments - ✅ Pydantic validates all config values ### Test Results - **Unit Tests:** 33/33 PASSING (100%) - **Full Test Suite:** 94/94 PASSING (100%) - **Manual Integration Tests:** 5/5 PASSING (100%) ### Key Features Verified 1. YAML loading from multiple search paths (config/config.yaml, ./config.yaml, /etc/cli-agent-api/config.yaml) 2. Environment variable overrides with CLI_AGENT_API_ prefix and __ nested delimiter 3. Pydantic validation with clear error messages for all config fields 4. Complete config.yaml.example with all 7 sections documented 5. Cached get_settings() singleton for app-wide config access ### Code Quality - 6 files modified/created (+641 lines) - Well-structured with separation of concerns - Comprehensive test coverage - No security vulnerabilities found - Follows project conventions **Full QA report:** /tmp/qa-CLIAPI-2.md **Recommendation:** Implementation is production-ready. APPROVED for merge.

## Implementation Complete ### Files Modified/Created: - `src/cli_agent_api/models/config.py` - Added 7 Pydantic models (ServerConfig, SecurityConfig, CorsConfig, ClaudeConfig, LimitsConfig, ShutdownConfig, LoggingConfig) with field validation - `src/cli_agent_api/config.py` - Implemented Settings class with YAML loading, env var overrides (CLI_AGENT_API_* prefix), and cached get_settings() singleton - `tests/unit/test_config.py` - 33 comprehensive unit tests covering all QA criteria - `tests/fixtures/config_valid.yaml` - Valid config fixture for testing - `tests/fixtures/config_partial.yaml` - Partial config fixture - `tests/fixtures/config_invalid.yaml` - Invalid config for error testing ### Key Features: 1. **YAML Loading**: Config loads from config/config.yaml, ./config.yaml, or /etc/cli-agent-api/config.yaml (in order) 2. **Env Override**: Environment variables with CLI_AGENT_API_ prefix and __ delimiter override YAML (e.g., CLI_AGENT_API_SERVER__PORT=9000) 3. **Validation**: Pydantic validates all values - port range (1-65535), log levels, etc. 4. **Clear Errors**: ValidationError with descriptive messages for invalid config ### Test Results: - All 33 config tests pass - All 94 project tests pass - Ruff linting passes

## Feature Triage Complete **Status:** PARTIALLY IMPLEMENTED (Skeleton Only) **Summary:** The configuration system files exist as stubs but need full implementation. The `config.yaml.example` is already complete and well-documented. Required dependencies (pydantic-settings, pyyaml) are already in pyproject.toml. **Implementation Location:** - Primary: `src/cli_agent_api/config.py` - BaseSettings class with YAML + env loading - Models: `src/cli_agent_api/models/config.py` - 7 config section models - Tests: `tests/unit/test_config.py` - new file for config tests **Complexity:** Medium - standard pydantic-settings pattern with good documentation available **Key Findings:** - All dependencies already installed - `config.yaml.example` serves as complete reference - Use `YamlConfigSettingsSource` with custom source priority (env > yaml > defaults) - Use `CLI_AGENT_API_` prefix for environment variables See full triage report at `/tmp/triage-CLIAPI-2.md`