Module cache 

Per-product render cache persisted as .render-cache.json at the root of build/<product>/. The cache keeps the cache-hit path byte-identical to the cache-miss path: when the recorded hash for a skill matches and the output file is still on disk, render leaves the file alone; otherwise the skill is re-rendered and overwritten.

Serialization uses BTreeMap so the on-disk file is byte-stable across runs (the cache-hit equality test depends on that).

Structs

CacheEntry

RenderCache

Constants

AGENTS_CACHE_FILE

Separate cache file for the optional agents render surface. Kept distinct from CACHE_FILE so the agents loop and the skills loop never reconcile against each other’s entries (a shared cache would make each surface delete the other’s outputs on save).

CACHE_FILE

CACHE_SCHEMA_VERSION

Bumped to 2 alongside the multi-file render landing (v0.14): cache entries now record every file the skill wrote (outputs: Vec<String>) so the renderer can surgically remove sibling files that disappear from source on a subsequent run. Caches written by older binaries silently load as empty and force a full re-render.