# M16-GAP-00041 Status

status: done
task: DECIMATE modifier LOCAL_EXACT slice
updated: 2026-08-20 America/New_York

scope: DECIMATE modifier metadata and collapse parameters for `mesh:WebGapDecimateObjectMesh`.

evidence:

- Desktop fixture exposes `WebGapDecimate` with ratio 0.65, two iterations, collapse mode, and angle limit 0.4; save/reopen is exact.
- WASM/Main exposes the same modifier parameters from the same fixture; save/reopen is exact.
- Malformed Blend input is rejected without mutating Main.
- `build_blender_5.2.0/bin/blender ... M16-GAP-00041.py`, `npm --prefix web run test:generated-gap -- --task M16-GAP-00041`, and `node tools/web/check-generated-gap.mjs --task M16-GAP-00041` exited 0.

knownRisk: Full evaluated decimation geometry and editor mutation remain outside this metadata/local-exact modifier slice.

nextTask: `M16-GAP-00042`