## QA Verification: PASSED ✅ **Verification Complete**: All tests pass, implementation is correct, and requirements are fully met. **Test Results**: - Unit tests: 854/854 passed - Integration tests: 86/86 passed - Code coverage: 90% (meets requirement) **Changes Verified**: - SSE endpoint now emits 'error' events for error messages ✅ - WebSocket endpoint now emits 'error' events for error messages ✅ - Result messages correctly emit 'complete' events ✅ - No regressions detected ✅ **Code Quality**: - Follows project patterns - Comprehensive test coverage (7 new tests) - No security vulnerabilities - No performance impact Full QA report: /tmp/qa-CLIAPI-47.md **Recommendation**: APPROVED - Production ready

## Fix Implemented **Problem:** SSE stream_session endpoint and WebSocket `_determine_event_type` function were emitting 'message' events for error-type messages instead of 'error' events. **Changes Made:** 1. **sessions.py:175-176** - Added `elif msg_type == "error"` branch: ```python elif msg_type == "error": yield {"event": "error", "data": message} ``` 2. **websocket.py:312-315** - Added error and result handling in `_determine_event_type`: ```python elif msg_type == "error": return "error" elif msg_type == "result": return "complete" ``` **Tests Added:** - `TestStreamSessionEventMapping` - 4 tests for SSE event mapping (error, permission, result, regular messages) - `TestDetermineEventType.test_error_type_returns_error_event` - `TestDetermineEventType.test_result_type_returns_complete_event` - `TestWebSocketEventTypes.test_error_event_type` **Verification:** - All 854 unit tests pass - All 86 integration tests pass - Commit: f05dbbd - Merged to CLIAPI-1 (main branch)

## Bug Triage Complete **Reproduction:** CONFIRMED **Summary:** The SSE stream_session endpoint and WebSocket _determine_event_type function both fail to emit 'error' events for error-type messages. Instead, errors are sent as generic 'message' events, violating the API specification. **Root Cause:** Event type mapping logic only handles 'permission_request' and 'result' explicitly, with everything else falling back to 'message'. **Affected Code:** - `src/cli_agent_api/routers/sessions.py:168-176` (SSE endpoint) - `src/cli_agent_api/routers/websocket.py:299-314` (WebSocket handler) **Test Coverage:** NO unit tests exist for the SSE stream_session endpoint. Integration tests document expected behavior but don't verify router implementation. **TDD Approach:** 1. Add failing test for error event mapping 2. Add `elif msg_type == "error": yield/return "error"` logic 3. Verify tests pass **Complexity:** Low - simple conditional addition in two locations See attached triage report (doc aae1b28c) for full details.