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FABRIC/notes/bf-48nk-verification.md
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docs(bf-48nk): verify all implementation gaps closed 
Confirmed that all issues from genesis bead description were already
fixed in previous runs:
- src/memoryProfiler.ts exists and fully implemented (255 lines)
- FileHeatmap treemap + timelapse: 31 tests pass
- SpanDag zoom/pan: tests pass
- All 2484 tests pass (4 skipped)

The original test failures were due to better-sqlite3 native module
version mismatch, not missing implementations.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
2026-05-22 16:05:20 -04:00

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Bead bf-48nk Verification

Date: 2026-05-22 Task: Genesis: FABRIC implementation gap closure

Claimed Issues (from task description)

  1. Failing unit tests across 10 test files (89 failed / 2206 total)
  2. Missing module: src/memoryProfiler.ts
  3. Web frontend: treemap + timelapse in FileHeatmap not implemented
  4. Web frontend: SpanDag zoom/pan interaction not implemented

Current State

All claimed issues have been resolved in previous beads:

1. Test Status

  • All 2484 tests pass (4 skipped)
  • Test files: 68 passed

2. memoryProfiler Module

  • File exists: src/memoryProfiler.ts (255 lines)
  • Fully implemented with:
    • MemorySnapshot capture and tracking
    • MemoryStats with trend analysis
    • MemoryDiff from baseline
    • V8 heap snapshot writing
    • Periodic capture with configurable intervals

3. FileHeatmap (Treemap + Timelapse)

  • Test file: src/web/frontend/test/FileHeatmap.test.tsx
  • 31 tests pass including:
    • Collision toggle button
    • View mode switching (tree/treemap/timelapse)
    • Treemap visualization
    • Timelapse controls (play/pause, slider)
    • Data loading and error states

4. SpanDag (Zoom/Pan)

  • Test file: src/web/frontend/test/SpanDag.test.tsx
  • Tests pass including:
    • Data loading
    • Zoom controls
    • Pan interaction
    • SVG rendering

Root Cause of Original Failures

Per notes/bf-48nk-resolution.md, the test failures were caused by:

  • Native module version mismatch for better-sqlite3
  • Module compiled for NODE_MODULE_VERSION 115 vs Node.js requiring 137
  • Fixed by: npm rebuild better-sqlite3

Conclusion

The genesis bead description was based on stale information. All implementation work was completed in prior agent runs. This verification run confirmed:

  • No missing modules
  • All tests pass
  • All features implemented

No source code changes required.