Index mapping assembly for composition and overlays

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2026-09-29 17:03:02 +00:00
parent 27df838513
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6 changed files with 153 additions and 14 deletions

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@@ -220,6 +220,15 @@ filesystem snapshot, universal sandbox, or transaction guarantee is added.
## Stage 1: Index mapping assembly and establish scaling baselines
**Completed 2026-09-29.** Private per-assembly mapping indexes now serve strict
composition and recursive overlay lookup while ordered entries and diagnostics
remain stable; conflict groups are checked once. Focused Compose/Overlay tests
and the everyday checker passed. On Linux amd64, the 512-entry benchmark
fixtures measured approximately 4.0 ms/op before and 3.3 ms/op after for wide
composition, and 12.9 ms/op before and 12.0 ms/op after for recursive overlay.
These are comparative evidence, not timing gates; provenance work still
dominates the latter and belongs to the next stage.
Scope: `internal/document` and engine composition/overlay lookup, with existing
behavior only.