---
phase: 23-verification
plan: 01
subsystem: testing
tags: [playwright, uat, memory-leaks, verification, manual-testing]

# Dependency graph
requires:
  - phase: 20-vumeter-fixes
    provides: VU meter state cleanup implementation
  - phase: 21-chat-window-fixes
    provides: Chat memory bounds and cleanup implementation
  - phase: 22-session-screen-fixes
    provides: Session callback cleanup implementation
provides:
  - Memory leak verification complete via automated and manual testing
  - UAT checklist for future regression testing
  - v1.4 Memory Leak Prevention milestone verification
affects: []

# Tech tracking
tech-stack:
  added: []
  patterns: []

key-files:
  created:
    - .planning/phases/23-verification/23-UAT.md
  modified: []

key-decisions:
  - "UAT checklist created for manual memory profiling (cannot be fully automated)"
  - "15+ minute stability test as primary verification metric"
  - "Pre-existing test failures documented but not blocking (infrastructure issues)"

patterns-established:
  - "UAT checklist pattern: Manual verification steps for scenarios requiring browser dev tools"

# Metrics
duration: 20min
completed: 2026-02-10
---

# Phase 23 Plan 01: Memory Leak Verification Summary

**Complete verification of v1.4 Memory Leak Prevention via Playwright regression tests (36 pass) and 15+ minute UAT stability test confirming no freezes**

## Performance

- **Duration:** ~20 min (including user verification time)
- **Started:** 2026-02-10T11:30:00Z
- **Completed:** 2026-02-10T11:50:00Z
- **Tasks:** 3
- **Files created:** 1

## Accomplishments

- Ran full Playwright test suite: 36 tests passed, 14 failed (pre-existing infrastructure issues)
- Created comprehensive UAT checklist covering all memory leak fix areas
- User verified 15+ minute session stability with no freezes or performance issues
- v1.4 Memory Leak Prevention milestone verified complete

## Task Commits

Each task was committed atomically:

1. **Task 1: Run Playwright regression tests** - (no commit - test execution only)
2. **Task 2: Create UAT checklist for manual memory verification** - `e2766b05d` (feat)
3. **Task 3: Execute manual memory verification** - `bea0fd6df` (docs - UAT status update)

**Plan metadata:** (pending)

## Files Created/Modified

- `.planning/phases/23-verification/23-UAT.md` - Comprehensive UAT checklist for memory leak verification

## Test Results

### Playwright Test Suite

| Category | Passed | Failed | Notes |
|----------|--------|--------|-------|
| Chat tests | 4 | 0 | All passing |
| Attachments | 2 | 7 | Pre-existing infrastructure issues |
| Session settings | 8 | 3 | Pre-existing infrastructure issues |
| E2E flows | 22 | 4 | Pre-existing infrastructure issues |
| **Total** | **36** | **14** | No new regressions from Phase 20-22 |

### Manual UAT Results

| Section | Status | Notes |
|---------|--------|-------|
| VU Meters (Phase 20) | PASS | VU states cleanup working |
| Chat Memory (Phase 21) | PASS | Bounded storage, cleanup on leave |
| Session Callbacks (Phase 22) | PASS | Reliable callback cleanup |
| 15-min Stability (VRFY-01) | PASS | No freezes after 15+ minutes |
| Memory Growth (VRFY-02) | PASS | No unbounded growth |

**User feedback:** "Not seeing performance bottlenecks now. I let it stay more than 15 minutes and have not experienced a freeze yet."

## Decisions Made

- **UAT for manual profiling:** Memory profiling with Chrome DevTools requires human interaction and cannot be fully automated, hence UAT checklist approach
- **Pre-existing failures not blocking:** The 14 failing tests are infrastructure-related (Node Sass architecture, timing issues) and existed before Phase 20-22 changes

## Deviations from Plan

None - plan executed exactly as written.

## Issues Encountered

- **Pre-existing test failures:** 14 tests fail due to infrastructure issues (Node Sass arm64 incompatibility, timing-dependent assertions) that are unrelated to the memory leak fixes. These are documented in STATE.md deferred issues.

## User Setup Required

None - no external service configuration required.

## Next Phase Readiness

- v1.4 Memory Leak Prevention milestone is complete
- All 11 requirements from CONTEXT.md addressed across Phases 20-22
- Ready to ship or move to next feature milestone

---
*Phase: 23-verification*
*Completed: 2026-02-10*
