# QA Verification Report: CLIAPI-27 **Issue:** MCP manager service **Branch:** CLIAPI-27 **Commit:** 14118ced874744c8addb5be0962865a0b88b4e04 **QA Date:** 2026-01-04 **QA Engineer:** code-verification-qa agent --- ## Executive Summary **STATUS: ✅ VERIFIED** The MCP manager service implementation has been thoroughly verified and meets all acceptance criteria. All 53 new tests pass, the code follows project standards, and the implementation correctly wraps the `claude mcp` CLI commands. --- ## Implementation Review ### Files Modified/Created 1. **src/cli_agent_api/models/mcp.py** (103 lines) - `MCPServerConfig`: Pydantic model for MCP server configuration - `MCPServerCreate`: Request model for adding servers - `MCPServerList`: Response model for listing servers - ✅ Proper validation with `@model_validator` for transport-specific fields - ✅ Supports all transport types: http, sse, stdio - ✅ Includes scope field (local/project/user) 2. **src/cli_agent_api/services/mcp_manager.py** (355 lines) - `MCPManager` class with comprehensive CLI wrapper functionality - ✅ `list_servers()`: Parses `claude mcp list` output - ✅ `get_server()`: Parses `claude mcp get <name>` output - ✅ `add_server()`: Builds and runs `claude mcp add` with all options - ✅ `remove_server()`: Runs `claude mcp remove` with optional scope - ✅ `server_exists()`: Convenience method to check existence - ✅ Robust text parsing with regex patterns - ✅ Comprehensive error handling (timeout, CLI not found, permission errors) - ✅ Proper async/await patterns with subprocess management 3. **src/cli_agent_api/routers/mcp.py** (213 lines) - RESTful API endpoints for MCP server management - ✅ `GET /v1/mcp/servers`: List all configured servers - ✅ `POST /v1/mcp/servers`: Add a new server (409 if exists) - ✅ `GET /v1/mcp/servers/{name}`: Get server details (404 if not found) - ✅ `DELETE /v1/mcp/servers/{name}`: Remove a server - ✅ Proper HTTP status codes (201, 204, 404, 409, 500) - ✅ Consistent error handling with HTTPException 4. **src/cli_agent_api/main.py** - ✅ Router properly registered in the application 5. **src/cli_agent_api/services/__init__.py** - ✅ MCPManager exported for use ### Test Coverage **Total new tests:** 53 (100% pass rate) #### Service Tests (tests/unit/test_mcp_manager.py): 34 tests - Initialization tests: 2 - Parsing tests: 15 - Empty output, no servers message - stdio/http/sse server parsing - Multiple servers, servers with env vars - Invalid formats, unknown transport/scope - Operation tests: 8 - list_servers(), get_server(), add_server(), remove_server() - server_exists() convenience method - Error handling tests: 5 - Command not found, timeout, permission errors - CLI failures with/without check flag - Model validation tests: 4 - Valid/invalid configurations for all transport types #### Router Tests (tests/unit/test_mcp_router.py): 19 tests - List servers: 4 tests (empty, success, with working_dir, error cases) - Add server: 6 tests (stdio, http, already exists, invalid configs) - Get server: 2 tests (found, not found) - Remove server: 3 tests (success, not found, with scope) - Authentication: 4 tests (all endpoints accessible without auth when disabled) --- ## QA Criteria Verification ### ✅ Can list configured MCP servers **Evidence:** - `MCPManager.list_servers()` implemented (mcp_manager.py:258-268) - Parses CLI output correctly for all transport types (test_parse_stdio_server, test_parse_http_server, test_parse_sse_server) - Handles empty output and "No MCP servers configured" message (test_parse_empty_output, test_parse_no_servers_message) - Router endpoint `GET /v1/mcp/servers` tested (test_list_servers_success) - **Test results:** ✅ All passing ### ✅ Can add server with any transport type **Evidence:** - `MCPManager.add_server()` implemented (mcp_manager.py:292-325) - Builds correct CLI commands for all transport types: - **stdio**: `claude mcp add <name> <command> [args...] --transport stdio --scope <scope>` - **http/sse**: `claude mcp add <name> <url> --transport http|sse --scope <scope>` - Supports environment variables via `--env KEY=value` flags - Router endpoint `POST /v1/mcp/servers` tested with all transport types - Model validation ensures correct fields for each transport (test_add_stdio_without_command, test_add_http_without_url) - **Test results:** ✅ All passing ### ✅ Can remove server by name **Evidence:** - `MCPManager.remove_server()` implemented (mcp_manager.py:327-342) - Supports optional scope parameter: `claude mcp remove <name> [--scope <scope>]` - Router endpoint `DELETE /v1/mcp/servers/{name}` tested - Returns 404 if server doesn't exist (test_remove_server_not_found) - **Test results:** ✅ All passing ### ✅ Handles CLI errors gracefully **Evidence:** - `MCPManagerError` exception class with detailed error information (mcp_manager.py:20-26) - Error handling for: - **CLI not found:** `FileNotFoundError` → MCPManagerError (mcp_manager.py:125-129) - **Permission denied:** `PermissionError` → MCPManagerError (mcp_manager.py:130-134) - **Timeout:** `asyncio.TimeoutError` → MCPManagerError (mcp_manager.py:93-99) - **Non-zero exit codes:** Configurable via `check` parameter (mcp_manager.py:112-121) - Router translates MCPManagerError to HTTP 500 with error message - **Test coverage:** test_command_not_found, test_command_timeout, test_command_failure_with_check - **Test results:** ✅ All passing ### ✅ Returns proper scope (user/project/local) **Evidence:** - Scope field included in MCPServerConfig model (mcp_manager.py:40-42) - Parser validates scope values against allowed set (mcp_manager.py:209-214) - Unknown scopes default to "local" with warning logged - All test cases verify scope field (test_parse_stdio_server, test_parse_http_server, test_parse_sse_server) - **Test results:** ✅ All passing --- ## Code Quality Assessment ### ✅ Follows Project Standards - Uses FastAPI patterns consistent with other routers - Pydantic models for validation - Proper async/await patterns - Structlog for logging - Type hints throughout - Consistent error handling ### ✅ No Security Issues Detected - No command injection vulnerabilities (args properly passed to subprocess) - No path traversal issues - No SQL injection (no database operations) - Proper input validation via Pydantic models - No sensitive data exposure in logs (logs truncated to 200 chars) ### ✅ No Obvious Bugs - Regex patterns correctly match CLI output format - Edge cases handled (empty output, unknown values) - Proper cleanup (subprocess termination on timeout) - Consistent error propagation ### ✅ Well-Tested - **53/53 tests passing (100%)** - Comprehensive test coverage including: - Happy paths for all operations - Error conditions - Edge cases (empty output, invalid data) - Model validation - Router endpoints with proper HTTP status codes --- ## Test Results ### MCP Manager Tests ``` tests/unit/test_mcp_manager.py::TestMCPManagerInit (2 tests) .............. PASSED tests/unit/test_mcp_manager.py::TestParseListOutput (9 tests) ............. PASSED tests/unit/test_mcp_manager.py::TestParseGetOutput (3 tests) .............. PASSED tests/unit/test_mcp_manager.py::TestListServers (2 tests) ................. PASSED tests/unit/test_mcp_manager.py::TestGetServer (2 tests) ................... PASSED tests/unit/test_mcp_manager.py::TestAddServer (3 tests) ................... PASSED tests/unit/test_mcp_manager.py::TestRemoveServer (2 tests) ................ PASSED tests/unit/test_mcp_manager.py::TestServerExists (2 tests) ................ PASSED tests/unit/test_mcp_manager.py::TestRunCommand (4 tests) .................. PASSED tests/unit/test_mcp_manager.py::TestMCPServerConfigModel (5 tests) ........ PASSED ``` ### MCP Router Tests ``` tests/unit/test_mcp_router.py::TestListServers (4 tests) .................. PASSED tests/unit/test_mcp_router.py::TestAddServer (6 tests) .................... PASSED tests/unit/test_mcp_router.py::TestGetServer (2 tests) .................... PASSED tests/unit/test_mcp_router.py::TestRemoveServer (3 tests) ................. PASSED tests/unit/test_mcp_router.py::TestAuthentication (4 tests) ............... PASSED ``` ### Overall Test Suite ``` Total tests run: 605 Passed: 550 Failed: 55 (all in pre-existing unrelated modules) MCP-specific tests: 53/53 PASSED (100%) ``` ### Pre-existing Failures (Not Related to CLIAPI-27) - test_mock_claude.py: 42 failures - test_sessions_router.py: 3 failures - test_websocket.py: 10 failures These failures existed before this implementation and are documented in the issue comments. --- ## Integration Points ### ✅ Dependencies Verified - **CLIAPI-8 (Claude CLI wrapper):** Status DONE ✅ - Uses subprocess execution similar to ClaudeWrapper - Follows same error handling patterns - Compatible with existing settings configuration ### ✅ API Consistency - Follows same routing patterns as `/v1/config`, `/v1/sessions` - Consistent use of query parameters for `working_dir` - Standard HTTP status codes - Uniform error response format via HTTPException --- ## Performance Considerations ### ✅ Appropriate Timeouts - Default timeout: 30 seconds (configurable) - Proper subprocess cleanup on timeout - Non-blocking async operations ### ✅ Resource Management - Subprocess properly terminated on timeout (process.kill()) - Awaits process completion (process.wait()) - No resource leaks detected --- ## Documentation ### ✅ Code Documentation - Comprehensive docstrings for all classes and methods - Clear parameter and return type descriptions - Examples in docstrings for complex parsing logic ### ✅ Commit Message - Clear summary of implementation - Detailed breakdown of components - Test statistics included - Proper attribution --- ## Recommendations ### None Required The implementation is production-ready. All acceptance criteria met, comprehensive test coverage, and follows project standards. --- ## Final Verdict **✅ QA PASSED** **Justification:** 1. All 5 QA criteria from the issue are met 2. All 53 new tests pass (100% pass rate) 3. Code follows project standards and best practices 4. No security vulnerabilities detected 5. Comprehensive error handling 6. Well-documented and maintainable 7. Proper integration with existing codebase **Recommendation:** APPROVE for merge to main branch (CLIAPI-1) --- **QA Completed by:** code-verification-qa agent **Date:** 2026-01-04 **Issue Status:** DONE ✅

## Implementation Complete ### What was implemented: **Models (src/cli_agent_api/models/mcp.py:11-102)** - `MCPServerConfig`: Pydantic model for configured MCP servers - Supports all transport types: http, sse, stdio - Validates that required fields are present for each transport type - Includes scope field (local/project/user) - `MCPServerCreate`: Request model for adding servers - `MCPServerList`: Response model for listing servers **Service (src/cli_agent_api/services/mcp_manager.py:29-354)** - `MCPManager` class wrapping `claude mcp` CLI commands - `list_servers()`: Parses `claude mcp list` output - `get_server()`: Parses `claude mcp get <name>` output - `add_server()`: Builds and runs `claude mcp add` with all options - `remove_server()`: Runs `claude mcp remove` with optional scope - `server_exists()`: Convenience method to check existence - Text parsing for CLI output (not JSON - CLI doesn't support JSON output) - Full error handling for timeouts, CLI not found, permission errors **Router (src/cli_agent_api/routers/mcp.py:16-212)** - `GET /v1/mcp/servers`: List all configured servers - `POST /v1/mcp/servers`: Add a new server (returns 409 if exists) - `GET /v1/mcp/servers/{name}`: Get server details (returns 404 if not found) - `DELETE /v1/mcp/servers/{name}`: Remove a server ### Test Results: - 53 new unit tests added (34 service tests, 19 router tests) - All 53 tests pass - Note: 55 pre-existing test failures in unrelated modules (test_mock_claude.py, test_sessions_router.py, test_websocket.py) ### QA Criteria Verification: - [x] Can list configured MCP servers - [x] Can add server with any transport type (stdio, http, sse) - [x] Can remove server by name (with optional scope) - [x] Handles CLI errors gracefully (not found, timeout, permission denied) - [x] Returns proper scope (user/project/local) ### Commits: - CLIAPI-27: Implement MCP manager service (14118ce) - Merged to CLIAPI-1 (main branch)

## Feature Triage Complete **Status:** NOT IMPLEMENTED (stub files exist) **Summary:** - `mcp_manager.py`, `models/mcp.py`, and `routers/mcp.py` exist as stubs (docstrings only) - Dependency CLIAPI-8 (Claude CLI wrapper): **DONE** - ClaudeWrapper is complete - `claude mcp` CLI supports: list, add, get, remove, add-json commands - Transport types: stdio, sse, http - Scope values: local, project, user **Key Implementation Details:** - CLI output is text (not JSON) - requires parsing - Subprocess-based approach (like ClaudeWrapper but simpler - short-lived calls) - Follow CRUD patterns from HookManager service - MCPServerConfig model well-defined in SPEC.md **Implementation Location:** - Service: `src/cli_agent_api/services/mcp_manager.py` - Models: `src/cli_agent_api/models/mcp.py` - Router: `src/cli_agent_api/routers/mcp.py` - Tests: `tests/unit/test_mcp_manager.py` **Files to Create/Modify:** 1. `models/mcp.py` - MCPServerConfig Pydantic model 2. `services/mcp_manager.py` - MCPManager class with CRUD methods 3. `services/__init__.py` - Export MCPManager 4. `routers/mcp.py` - FastAPI endpoints 5. `tests/unit/test_mcp_manager.py` - Unit tests **Complexity:** Medium (~500-600 lines total including tests) See full triage report at: `/tmp/triage-CLIAPI-27.md`