Lean and dense throughout — it gives concrete commands and operational heuristics (author-history framing, the gh/jq ANSI note) without explaining concepts Claude already knows; every section earns its place.

Provides copy-paste-ready, executable commands (gh issue view --json ..., git log --oneline -20 -- <file>, git blame) plus concrete transition parameters (stage: "planning"/"done", rationale max 1000 chars).

Five explicitly sequenced phases with an explicit validation/feedback loop on the terminal transition — "If it is rejected, read the stated reason, address it... and retry once corrected" — and a checkpoint to take stage/expectedRevision from the factory-phase signal.

No bundle files exist and none are needed; the single-file workflow is cleanly organized into named Phase 1–5 sections and a Behavior Rules block, satisfying the well-organized-sections criterion for skills with no external references.

Lists multiple concrete actions — "trace history, understand architecture, diagnose root cause, then advance the stage" — tied to a named domain (Factory work item), matching the multi-action anchor for 3.

Clearly states what the skill does, but the "when" is only implied (triaging a Factory work item) with no explicit "Use when..." clause, which caps completeness at 2 per the guidelines.

Relevant terms ("triage", "Factory work item", "issue", "root cause") are present but coverage is narrow and Factory-internal, missing common user phrasings like "investigate this bug" or "look into this issue".

Scoped to "Factory work item's issue" with a distinct triage-to-stage-transition purpose, giving it a clear niche unlikely to trigger for unrelated debugging skills.