✅ VERIFICATION PASSED All acceptance criteria met: - Root cause correctly identified and fixed (step increment + completion call) - 3 comprehensive tests added, all passing - No regressions (902/902 related tests pass) - Code follows project standards Fix is production-ready. See /tmp/qa-PLOW-63.md for full QA report.

## Fix Applied **Root Cause:** In `workflow.py:1501-1516`, step 4 (check_issue_status) had two bugs: 1. The `step` variable was never incremented - it used `_update_state_for_step(step + 1, ...)` but never `step += 1` 2. `_complete_state_step()` was never called for step 4 **Changes Made:** `workflow.py:1501-1511`: - Added `step += 1` before the step 4 block - Changed `_update_state_for_step(step + 1, ...)` to `_update_state_for_step(step, ...)` - Added `_complete_state_step(step)` after successful status check **Tests Added:** `test_workflow.py` - New test class `TestStepProgressionInState`: - `test_step4_updates_state_correctly` - Verifies step 4 state updates - `test_step_progression_through_non_triage_path` - Tests non-triage workflow - `test_step_progression_through_triage_path` - Tests triage workflow **Verification:** - All 46 workflow tests pass - All 64 state/web integration tests pass - All 3 new step progression tests pass

## Bug Triage Complete **Reproduction:** CONFIRMED via code analysis **Root Cause:** In `workflow.py` lines 1501-1516, step 4 (check_issue_status) uses `step + 1` inline without incrementing the `step` variable, and never calls `_complete_state_step()`. This causes the frontend state to show step 4 but never receive the completion notification, making it appear stuck. **TDD Approach:** 1. Write tests for step progression through both triage and non-triage paths 2. Fix step increment logic in workflow.py (increment `step` first, then call `_update_state_for_step()`) 3. Add missing `_complete_state_step()` call See attached triage report document for full details.