mathias
c6787e04d7
Second half of #29. The index was hand-maintained and had already drifted once: dream and experiment-spec shipped with no row, their rows lost to a squash-merge after a directory reorg. bin/check-index caught that after the fact; generating removes the class. The curated summary and trigger move into each SKILL.md as `summary:` and `use_when:`, carried over verbatim from the existing table rather than derived from `description:` — description is a paragraph written for model selection, and truncating it would have produced a worse table than the one it replaced. Knowledge now lives once, next to the skill it describes, which is the argument that made a hand-maintained index the wrong shape to begin with. The table is written between markers, so the wiring docs, the relationships tree and the trigger table below it are untouched — those are prose, not data. Rows are alphabetical now; the conceptual grouping the old order carried lives in the relationships tree, which is the better place for it. A fourth column shows each skill's surfaces, which is what makes #29's field visible rather than merely enforced. bin/check-index and its test are deleted: a generated table cannot drift in either direction, so `generate-index --check` subsumes both of its assertions. Verified by mutation — deleting the tdd row turns `task check` red with "SKILLS_INDEX.md is out of date". Closes #29 Bump-Type: minor