Host the memory-of-use ledger's schema/counting/status-vocabulary convention and the confirmed-proposal apply/verify/rollback/SECGATE machinery — the single, mandatory, deny-listed skill so this governing prose is reliably present from setup (Mode A + Mode B) and can never itself be an apply's target (ADR-061)
Host the skill-content pull flow — classify every installed curated skill via fresh-bytes-on-both-sides against the on-disk pool and the workspace's own install manifest, offer per-component updates with no silent overwrite, and stand as the mechanism that backfills the three mandatory safety skills (self-apply, self-archive, self-upgrade) into any workspace that runs this flow — Face 1 of the v2.19 Persistency Layer (KDQ-PULL), kept textually distinct from self-upgrade's engine-version Face 2 (ADR-072/073)
Host the auto-cleaning move-eligibility gate, destination gating, reversible-move-log rollback, and reference-integrity verification for proposing a stale/superseded file's relocation into the local archive convention — the sibling, mandatory, deny-listed skill to self-apply, holding the PATH-relocation operation type separately so neither module carries two verification concerns (ADR-066)
Host the kit-version walk-forward contract and the two-write-class self-integrity invariant (verify-then-swap on safety machinery) for replacing a workspace's own engine/framework machinery across kit versions — the third deny-listed sibling to self-apply/self-archive, dormant at v2.19 (zero real forward-walk targets) but installed and reachable now so no future rung has to backfill the gate (ADR-071)
[one sentence describing what this skill enables Cowork to do]
Run a periodic Collect, Process, Review, and Plan pass across workspace files to surface what's stalled, due, and worth prioritizing next week
Brainstorm a novel need, then author, install, and validate a working local skill on the spot — Cowork's generative path alongside its fixed skill pool
Review a draft and return specific, actionable editing suggestions at the level the writer requests