The candidate (the pipeline's own revision) against the branch's newest through mesh-catalog's revision; serving parts by the holder of the runner's, catalog's, steps' and composer's seats; acting rules, credentials; grants through grants-for. A read that fails says could not run. Touches steps.go (Hearer.Widens field, say's pipeline-ended), main.go (hearer.Widens), module.json invokes.
Builds: design 47 G §71, §275, §335, §441, A-207, A-215, A-220
Claude-Session: https://claude.ai/code/session_01NcbgfGKaxw984XyAPfLm4h