Conciseness

Mostly efficient and assumes Claude's competence — rule logic, flags, and file paths are stated directly without explaining basics — but a few rationale blocks (the 'adk-major-current' paragraph, the stale-refs bash example, long rule-table cells) could be tightened without losing the skill-specific knowledge Claude needs.

Actionability

Provides fully executable, copy-paste-ready `uv run --no-project --with tomlkit --with 'ruamel.yaml' --with packaging` commands for every mode, exact flags, real script path, concrete TOML build-system templates, and a precise response-format spec covering the common cases.

Workflow Clarity

The destructive rewrite workflow has explicit validation checkpoints: always start with --dry-run, filter to status != 'ok', handle needs_input/report_only before applying, exit-code 0/1 semantics, and a Next-steps verification reminder — with clear feedback loops (dry-run → review → apply → verify).

Progressive Disclosure

Well-organized into What it Checks / Rules for the Agent / Input / Run / Respond, with the executable logic correctly delegated to the bundled scripts/align_pyproject.py and referenced by real path; minor gaps in that the build-system templates and full response-format prose are inlined rather than split out.

Specificity

Lists several concrete actions ('rewrites pyproject.toml (and optionally manifest.yaml) using comment-preserving TOML/YAML editors', 'read-only --dry-run that reports what needs alignment', 'one critical [build-system] presence check'), but the umbrella 'aligns with the repo's standards' leaves the individual rules implicit rather than enumerated.

Completeness

Explicitly answers both 'what' (aligns pyproject.toml with repo standards via dry-run/apply modes) and 'when' (a 'Use when...' clause with concrete trigger phrases), matching the top anchor.

Trigger Term Quality

Provides verbatim natural user phrases — 'align the recipe's pyproject.toml', 'fix pyproject to match the repo standard', 'check what needs changing in a recipe's pyproject', 'clean up a recipe before submitting a PR' — covering synonyms and the PR-cleanup variant a user would actually say.

Distinctiveness Conflict Risk

The niche is sharply bounded — a Python recipe's pyproject.toml against one specific workflow — and scope is explicitly narrowed (ruff.toml handled by CI, not this skill), minimizing conflict with adjacent skills.