Conciseness

The body is largely lean and assumes competence — phases are short, commands are direct, and it does not explain what cargo/hyperfine are — with only minor repetition (the coordinator role and 'Print it out' lines restated a few times) that could be trimmed.

Actionability

Fully executable, copy-paste-ready bash commands are given for baseline capture, macro/micro benchmarks, validation, and recording, with concrete file paths and argument templates that cover the common cases.

Workflow Clarity

Six phases (0–5) are clearly sequenced with explicit CRITICAL validation checkpoints ('All benchmarks must complete before continuing', 'ci/validate', 'If ci/validate repeatedly fails... document it and stop'), an error-recovery loop, and a clear handoff contract with find-target and review.

Progressive Disclosure

Structure is well-organized with one-level-deep references to real bundle files (assets/db.yaml, index.template.yaml, db/<id>.yaml), all of which exist; it stops short of 5 because the body inlines the full baseline/recording detail rather than presenting itself as a pure overview with signaled links to detail files.

Specificity

Lists four concrete coordinator actions ('Captures baselines, implements changes, invokes review, and records outcomes') rather than vague language, but each is a high-level phase rather than a granular capability, leaving minor coverage gaps.

Completeness

The 'what' is clearly stated (coordinates optimization attempts via baseline/change/review/record), but there is no 'Use when...' or equivalent trigger clause telling Claude when to invoke it, which caps completeness at 3 per the rubric.

Trigger Term Quality

The only keyword is 'optimization attempts'; it lacks the natural phrases and synonyms a user would say (e.g. 'optimize', 'speed up', 'benchmark', 'perf', 'make faster'), and 'attempts' is an awkward trigger.

Distinctiveness Conflict Risk

'Coordinates optimization attempts' is a fairly generic coordination description that could overlap with other orchestration/review skills; the niche is only weakly distinguished and there are no distinct trigger phrases to separate it.