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Xuanru LiandClaude Opus 4.8
72e2f08f15
* feat(lint): dense motion re-sampling for content_overlap Transient text-on-text collisions during continuous motion (e.g. an orbiting label card crossing the center card) overlap for a fraction of a second that the sparse 9-point layout grid seeks straight past. The content_overlap detector is correct; it just never gets a sample at the crossing moment. Rerun ONLY content_overlap on an 8fps grid (text-only, cheap) when the composition animates; findings feed the existing persistence tiering unchanged. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com> * fix(lint): unconditional dense content_overlap pass + honor 500ms floor Round-1 blocker: the dense motion-overlap re-pass was gated on sparse-grid geometry fingerprints changing, so an animation aliased to the sparse grid (identical fingerprints, yet colliding between samples) bypassed the pass — exactly the transient false-negative it was built to catch. Remove the gate: the dense pass now runs unconditionally (bounded, text-only), driven by the composition timeline rather than a fingerprint heuristic. Round-2 follow-ups: - Persistence-tier drift: at 8fps, occurrences>=2 spans only ~125ms, not the ~500ms the design intends, and it short-circuited before the ms floor. content_overlap promotion now requires BOTH occurrences>=2 AND a literal firstSeen..lastSeen span >= 500ms, so the wall-clock floor is honored at any sampling density. Comment block updated to match. - Sample cap scales to hold a true 8fps grid up to ~75s (raised 120 -> 600) with an explicit note that longer comps degrade below 8fps to stay bounded. Tests: - Replaced the trivial "warning at every sample" test with a real between-grid regression: a collision living only inside (3.5,4.5) — a gap the sparse grid seeks past — is detected and, held ~750ms, promoted to error. - Replaced the now-invalid "skips when static" test with one asserting the dense pass runs even when sparse fingerprints are identical (aliased motion). - Added a tiering regression: two dense occurrences spanning ~125ms stay a warning (not error). Both new guards verified red before the fix. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com> * perf(lint): settle-free geometry seek for dense content_overlap pass The dense overlap re-pass did up to OVERLAP_MAX_SAMPLES full-settle seeks (120ms paint settle each, ~72s of pure sleep at the ceiling) even though collectOverlap only reads getBoundingClientRect geometry, valid synchronously after the timeline setTime. Add a settle-free DENSE_GEOMETRY_SEEK_OPTIONS + driver.seekGeometry used only by the dense loop; the base grid keeps full-settle driver.seek. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com> * test(lint): document + cover content_overlap 500ms boundary for sparse callers The occurrences>=2 AND heldMs>=500 promotion rule is a semantics change for sparse callers (--samples 20, --at, short comps) whose two samples can land <500ms apart. Document the change in the tiering comment and add boundary tests: 499ms span stays warning, 500ms span promotes to error. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com> * fix(lint): make dense content_overlap seek genuinely geometry-only Per review: DENSE_GEOMETRY_SEEK_OPTIONS only overrode settleMs, still inheriting animationFrameSettle:double + waitForFontsMs:500 → ~3 frame waits + font wait per seek → ~30s at the 600-sample cap. Geometry (getBoundingClientRect) is valid synchronously post-setTime, so drop all post-seek waits (animationFrameSettle:none, waitForFontsMs:0, settleMs:0). Add options-level regression locking the geometry-only contract. Also fix a stale comment name (detectMotionTextOverlap → collectMotionOverlapSamples). Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com> * style: collapse multi-line comments to single lines Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com> --------- Co-authored-by: Claude Opus 4.8 <noreply@anthropic.com>