Conciseness

The body is lean routing guidance with no concept explanations, but two spots could be trimmed: the opener "Use this skill for requests that are specifically about reviewing staged changes and drafting a commit message for them" duplicates the frontmatter description, and "This skill exists to make the trigger explicit, request the review, forward any specified model name, and route the task into the canonical git workflow" restates the workflow's purpose. Matches anchor 4 (efficient, minor over-explanation); not 5 because of this redundancy, not 3 because there is no padding or explanation of things Claude already knows.

Actionability

For an instruction-only skill the guidance is fully executable: it names the exact resource ("Load the `git-workflows` skill and read its `references/op_commit_message.md`"), maps inputs to specific operation steps ("Perform step 2 (\"Review\") inline", "during step 4 (\"Draft the commit message\")"), gives the exact footer template ("Commit message generated by <harness name> (<model name>)"), and specifies the fallback ("If no argument is provided, follow the default footer instructions"). Matches anchor 5; no key execution detail is missing.

Workflow Clarity

A simple single-purpose skill whose single action is unambiguous: a numbered sequence (load reference, follow it with the given inputs, don't fork the process) with checkpoints surfaced — "If nothing is staged, the operation's step 1 stops the process" and the description-level "commit after approval" guard. Per the simple-skill guidance this matches anchor 5; not 4 because the stop-condition and review/approval checkpoints are explicitly addressed.

Progressive Disclosure

The body is under 50 lines with clear sections (Arguments, Workflow, Trigger Examples, Scope) and a single clearly-signaled, one-level-deep reference ("read its `references/op_commit_message.md`"); no content that belongs in a separate file is inlined. There are no bundle files (references/, scripts/, assets/ do not exist) to misstructure, matching the simple-skill exception for anchor 5.

Specificity

"Review staged git changes, then draft a commit message and commit after approval" lists three concrete actions, and "Accepts optional arguments specifying the model name" adds a fourth capability. This matches anchor 4 (several specific actions, minor gaps) rather than 5 because a sizable share of the description is routing/meta guidance ("Intended for an agent that did not write the changes") instead of enumerated capabilities, and it does not say what the review step covers.

Completeness

Both questions are answered explicitly: what — "Review staged git changes, then draft a commit message and commit after approval"; when — "Use this when the user wants a reviewed commit message for the staged changes". This matches anchor 5 (clear, explicit what AND when with concrete trigger phrasing); it is above anchor 4 because the 'when' clause is already explicit and concrete, not merely implied or generic.

Trigger Term Quality

Natural phrases users would say are present: "commit message", "staged git changes", "staged changes", "reviewed commit message". Good coverage matching anchor 4, but not 5 because common variations like "write a commit message", "git commit", "diff", or "conventional commit" (which the body's trigger examples do cover) are absent from the description itself; not 3 because the included keywords are natural and directly relevant.

Distinctiveness Conflict Risk

The niche is narrow (staged changes only) and it actively disambiguates from the closest sibling: "the session that wrote them should use `review-and-commit` instead". This matches anchor 5 (clear niche with distinct triggers, minimal conflict risk) rather than 4 because the primary overlap risk is explicitly resolved rather than merely reduced.