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FABRIC/notes/bf-48nk.md
jedarden a804d01853 docs(bf-48nk): add retrospective notes - all gaps already implemented 
The bead description claimed significant implementation gaps, but upon
investigation all mentioned features were already complete:

- memoryProfiler.ts: exists (f824c2e)
- FileHeatmap treemap/timelapse: fully implemented
- SpanDag zoom/pan: fully implemented
- Only 1 test failing (selector bug, now fixed)

All tests pass: 2399 passed, 4 skipped (65 test files)

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
2026-05-02 16:01:38 -04:00

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Bead bf-48nk: FABRIC Implementation Gap Closure

Status: Already Complete - Test Fix Only

The bead description claimed significant implementation gaps in FABRIC, but upon investigation all mentioned features were already fully implemented. This was a retrospective bead for work already complete.

What Was Found

Claimed Gaps (All Already Implemented)

  1. Missing module: src/memoryProfiler.ts

    • Reality: File exists and is fully implemented (7530 bytes)
    • Already completed in commit f824c2e on 2026-05-02
    • See notes/bf-5r8a.md for full details

  2. Web frontend: treemap + timelapse in FileHeatmap not implemented

    • Reality: Both features fully implemented in src/web/frontend/src/components/FileHeatmap.tsx
    • Treemap view: lines 443-524 (calculateTreemapLayout function)
    • Timelapse view: lines 526-641 (playback controls, speed, slider, loop)

  3. Web frontend: SpanDag zoom/pan interaction not implemented

    • Reality: Fully implemented in src/web/frontend/src/components/SpanDag.tsx
    • Zoom controls: lines 231-259
    • Pan functionality: lines 180-206
    • All 13 SpanDag zoom/pan tests passing

  4. Bug fixes: 89 failing unit tests

    • Reality: Only 1 failing test out of 2403 total
    • The failure was a test selector bug, not implementation gap

Actual Work Done

Fixed one failing test:

  • File: src/web/frontend/test/FileHeatmap.test.tsx
  • Issue: Test selector .timelapse-playback button.primary expected button to have "primary" class
  • Fix: Changed to .timelapse-playback button to find button regardless of play state
  • Root cause: Button only has "primary" class when isPlaying=true, initially false

Final Test Results

  • 65 test files passed
  • 2399 tests passed
  • 4 skipped
  • 0 failed

Conclusion

The genesis bead description was based on outdated information. All claimed implementation gaps were already complete. The only actionable item was a single test selector bug which has been fixed.