Conciseness

The body is dense and prescriptive with no explanation of concepts Claude already knows, but rules 3/5/7 are restated nearly verbatim in step 3 and the 'Could be lost' message-format rules span several lines and are re-anchored in step 5 — minor instances of over-explanation that could be trimmed, matching anchor 4 rather than the every-token-earns-its-place bar of anchor 5.

Actionability

Fully executable guidance throughout: copy-paste-ready git commands with exact flags ('git rev-list --count origin/<branch>..<branch>', 'git worktree remove <path>', 'git branch -d'), an exact commit message format, exact output line formats, and explicit fallbacks for host-dependent tools — anchor 5.

Workflow Clarity

A clearly sequenced five-step workflow with a validation gate before any destructive change ('Nothing-lost check — for every picked child, before anything is changed'), explicit stop conditions ('Stop on this child until the answer'), error handling for refused host tools, and a seven-item Verification checklist — the batch/destructive cap does not apply because validation is pervasive, matching anchor 5.

Progressive Disclosure

Section structure is excellent and clearly tagged (<context>, <rules>, <step_by_step>, <verification>), but the skill is ~122 lines with no bundle files, exceeding the under-50-line simple-skill exception; some detail such as the per-check git commands or the message-format specification could live in a reference file — good structure with minor organization gaps, anchor 4.

Specificity

Lists several concrete actions ('checks that no child work is lost', 'moves follow-ups into the manager's task file', 'settles branches and worktrees', 'archives sessions'), but 'settles' omits the merge/drop/keep decision and the ledger-marking/commit step is absent, leaving minor gaps in coverage rather than the comprehensive coverage of anchor 5.

Completeness

Explicitly answers both questions: a clear multi-action 'what' and an explicit 'Use when a manager session is asked to close its child sessions' trigger, plus a negative boundary ('Not for finishing this session (finish-session)') — concrete trigger phrases with both what and when, matching anchor 5.

Trigger Term Quality

Natural trigger phrasing is present ('asked to close its child sessions', 'manager session', 'follow-ups', 'branches', 'worktrees'), but common synonyms a user might say — 'swarm', 'subagents', 'teammates' — are missing, matching good-but-not-comprehensive keyword coverage.

Distinctiveness Conflict Risk

Occupies a clear niche (a manager closing its child sessions) and explicitly disambiguates from the closely related finish-session skill, so the risk of triggering for the wrong skill is minimal — anchor 5.