Phase 3c is delivered in four slices so an interrupted phase never leaves
the runtime worse than it started: contract, lifecycle and voices,
automation, and measured master protection. Slice 2 replaces working
scaffolding, and slice 4 cannot close without user-observed measurement.
Record that split in the implementation plan.
This commit is slice 1, the contract. Format Specification section 16
adds automation tracks with three modes and four interpolation curves,
their placement in the shared resolution pipeline, the seven-state
lifecycle with its permitted transitions, the engine-owned internal
release gain, a per-node table for computing determinable one-shot
endings, voice ceilings with an eviction order that always releases
rather than hard-stops, the master protection contract, and unlock and
pause behavior for audio.
Automation reuses the modulation registry rather than introducing a
second answer to which properties vary over time, and a track is
declared inside the graph that owns its target, so section 14.4 stands:
automation does not widen the external surface of a node property. Close
the container gap the new fields opened by adding `automation` to the
graph object in 14.3 and `release` to the recipe object in 15.16.
Master protection is specified in shape and provisional in value.
Finite-sample handling is normative because a NaN in the output buffer
is unacceptable at any ceiling; the peak ceiling, numerical tolerance,
and release behavior await GC6 measurement.
No runtime change. There is no lifecycle state machine, no voice ceiling
is enforced, and `automation` and `release` are still rejected as
unknown fields. No sound has been heard from any build.
Co-Authored-By: Claude Opus 5 <[email protected]>
Claude-Session: https://claude.ai/code/session_011FWPdCqKaaDnP9NC3JAwh6
LabyricornandClaude Opus 5
42e4b32fd6