Conciseness

Every line carries non-obvious operational content — exact commands, background-execution rationale ('a foreground run would be stopped and the annotations lost'), and tool-specific approval semantics — with no padding or explanation of concepts Claude already knows; the few justification clauses (e.g. the 2-minute foreground limit) each prevent a real failure mode rather than over-explain, which keeps it above anchor 4.

Actionability

Provides copy-paste-ready commands for both modes ('plannotator annotate <path-or-url>' and 'plannotator annotate <path-or-url> --gate --json') plus concrete execution details ('is_background: true, and no trailing &', 'end your turn without stopping the task') and specific result fields ('"decision": "dismissed"', '"decision": "approved" with a "feedback" field'), fully matching the executable anchor 5.

Workflow Clarity

The sequence — run in background, end turn, read the output file when the task finishes, then act — is unambiguous, and the numbered behavior list enumerates outcome checkpoints including an explicit error-recovery loop ('work out which target the user means and re-run the command yourself'); as a simple single-purpose skill with clear outcome validation, it merits the top anchor.

Progressive Disclosure

The ~30-line body is well organized into command modes, execution notes, and a numbered behavior list, with no content that belongs in separate files and no bundle files present to reference; per the under-50-line simple-skill guideline, well-organized sections alone merit the top anchor.

Specificity

Names the domain ('Plannotator's annotation UI') and exactly two concrete actions — 'Open... annotation UI' and 'respond to the returned annotations' — matching the 1-2-actions anchor; coverage is not comprehensive because the --gate approval mode, a major capability of the skill, is absent (the anchor-4 example lists three actions with only minor gaps).

Completeness

The 'what' is clear ('Open Plannotator's annotation UI... and then respond to the returned annotations') but there is no 'Use when...' clause or equivalent explicit trigger guidance, which caps completeness at 3 per the judging guidelines; it scores above anchor 2 because the 'what' is concrete rather than vague.

Trigger Term Quality

Good keyword coverage including file extensions ('.yaml, .json, .toml, .ini, .csv, .log') plus 'markdown', 'HTML', 'URL', and 'folder', but a few natural terms users would actually say — 'review', 'feedback', 'approve', 'gate' — are missing, fitting anchor 4 rather than the comprehensive-synonyms-and-extensions anchor 5.

Distinctiveness Conflict Risk

The named tool 'Plannotator' gives a clear niche with distinct triggers, but generic 'annotate' phrasing over broad targets ('URL, or folder') leaves minor overlap risk with generic annotation/review skills, and the anchor-5 example's explicit trigger boundary ('Use when working with PDF files...') is absent here.