Conciseness

Nearly every paragraph carries non-obvious project constraints Claude could not know (the cross-repository `.closingIssuesReferences[0].number` bug, the private-tracker label rule, the guarded `git add`) — no padding on concepts Claude already knows. Not 5 because "When to run this instead of `retro`" and "Where this sits" repeat the description and state the deferred-analysis point twice, and a few rationale passages (e.g. the transcript-lifecycle paragraphs) could be trimmed.

Actionability

Fully executable, copy-paste-ready commands throughout: the three environment probes, `bun run --cwd tools/pr-metrics card -- --resolve-issue` with the markdown variant, the guarded `git add`/commit/push, the PR body append, and the idempotency `grep`. Common cases and failure modes (no `gh`, no network) are covered with concrete instructions. Not 4 because there is no gap — every step is a literal command with its purpose stated inline.

Workflow Clarity

Clear sequence (probe → write card → render onto PR → finish) with explicit validation checkpoints: the pre-flight network/`gh`/transcripts probe, the grep guard against stacking a second `<details>` block, the single-file staging rule, and recovery paths ("record which and carry on", "commit the card locally; it pushes with the next push"). The destructive risks the workflow does carry (PR body edit, commit/push) are each guarded. Not 4 because checkpoints and error-recovery guidance are present at every stage, not just most.

Progressive Disclosure

No bundle files exist, so this is a single-file skill with clean section headers and no nested references — nothing buried, nothing orphaned. Not 5 because at ~160 lines several long rationale blocks (the four rules in Step 1, the hook and transcript-lifecycle notes) are execution-adjacent rather than execution-critical and could live in a reference file, per the under-50-lines exception not applying here.

Specificity

Lists several concrete actions — "writes, commits and renders the card, and stops", "produces no findings and changes nothing" — but the card's contents (PR number, issue labels, spend) are only implied, leaving minor gaps in coverage. Not 3 because it goes beyond 1-2 actions; not 5 because the artifact itself is described generically as "the card" without its full payload.

Completeness

Explicitly answers both questions: what ("writes, commits and renders the card, and stops"; "produces no findings and changes nothing") and when ("Use when a branch has finished and the session-metrics card is all that is wanted", "for sessions running close to their token budget") with a concrete trigger clause. Voice is third person throughout, so no person penalty applies.

Trigger Term Quality

Good natural keyword coverage — "branch has finished", "session-metrics card", "token budget", "retro" — phrasing a user of this ecosystem would plausibly say. Not 5 because common variations like "wrap up the session" or "just the metrics" are absent; not 3 because multiple relevant natural terms are present, not just one or two generic ones.

Distinctiveness Conflict Risk

Occupies a clear niche and actively disambiguates against its only close sibling: "The card-only half of `retro`" and "Where there is room to think, run `retro` instead". A reader cannot mistake which skill to invoke; minimal conflict risk.