AGENTS.md carried the full compatibility matrix — per-generation event
vocabulary, the moving V3 client seams, and the runtime gate's internals —
duplicating what docs/compatibility.md exists to document. Restate only the
requirements there and point at that page, keeping the agent-facing anchors
that have no user-facing home: the single shape-driven fold path
(`logShapes.ts`'s `firstTokenTimeOfStream` / `replaceRangeOf` / `isTokenChunk`,
`applyTimeline`), the upstream implementation mirrors (`dsh-token-meter`'s
`estimateSystemMessage`, `dsh-llm`'s `assistantStreamFirstTokenTime`), the
gated-inject rule for newer-only seams, and the baseline verification
mechanism.
docs/compatibility.md gains the previously undocumented baseline gate
(including the running-tree-first probe and fail-open behavior) and names the
V2 stream paths in full.
bowenliang123
3f22d9745e
