ai.md is the mandatory read every session; at 2,702 lines / ~64k tokens it
costs the whole subsystem history even when the task never touches it. This
is a verbatim move, not a compression - nothing is deleted and each stub is
written from the moved text.
- docs/ai/frame-pipeline.md: 'Frame cadence', 'Per-element composite timing +
scene dump', 'What the first instrumented take said', 'Render budget',
'Scene compositor' and 'Live frame pipeline', byte-identical, plus a short
'Related in ai.md' footer and two stale 'below' pointers corrected.
- ai.md keeps two stubs carrying the invariants that must not be missed
(overlay on every render path, VideoFrame.Epoch, StripPool threads,
Release-only render numbers; arrival-stamped rawvideo, non-blocking submit,
stop order, burned _outputIndex judge) and links the new file.
- docs/ai/index.md + docs/index.md route the split; schema.md inventory lists
the new tier.
- 4 index-row references and 2 TASKS.md anchors repointed; ai.md's Services
row too.
Measured: ai.md 63.6k -> 47.1k tokens, 2,702 -> 1,975 lines. Progressive
disclosure per schema.md convention 5. No source touched; no push.