Conciseness

The body is lean and assumes Claude's competence: no explanations of what a PRD, git, or a changelog is; every section consists of rules, formats, or concrete examples. It matches the score-5 anchor ('every token earns its place') — the brief intro line and skip-guidance ('Skip this for one file fixes') are boundary rules, not padding, so it does not fall to 4.

Actionability

Guidance is fully executable: concrete file paths and layouts (prds/<slug>.md, task.md sections, prds/lessons.md, prds/archive/), specific commands ('git log --date=short', 'npx convex dev'), copy-paste-ready good/bad task entries, a lesson-line example, and a link to the real PRD template. As an instruction-only skill whose guidance is this specific, it matches the score-5 anchor; minor judgment calls like 'if the plan has a real choice in it' are inherent to the domain, not gaps.

Workflow Clarity

The six-step loop is clearly sequenced with explicit validation checkpoints ('Verify each step', 'An item moves to Completed after verification, not after the edit', the Never rule forbidding done-marking without the PRD verification step) and feedback loops for error recovery (triage ask-one-question-and-wait, 'Stop and re plan if the work stops making sense'). This is not a destructive or batch skill, so the workflow cap does not apply; it matches the score-5 anchor with checklist-style triage and Never sections.

Progressive Disclosure

The body is a concise overview organized into well-labeled sections, and the single detail-heavy artifact (the PRD layout) is correctly split into references/prd-template.md, which exists, is one level deep, and is clearly signaled with a markdown link. This matches the score-5 anchor for a clear overview with well-signaled one-level-deep references rather than 4, which presumes organization gaps.

Specificity

The description lists five concrete, specific actions with named artifacts: 'Triage before code, a short PRD in prds/, task.md kept current, docs synced after, and lessons recorded when a mistake repeats.' This comprehensively covers the skill's workflow, matching the score-5 anchor rather than 4, which is reserved for lists with minor coverage gaps.

Completeness

Both questions are answered explicitly and concretely: the 'what' is the triage → PRD → task.md tracking → docs sync → lessons loop, and the 'when' is a full 'Use when' clause with concrete trigger phrases ('when the user says "write a PRD", "plan this", ...'). This matches the score-5 anchor exactly; score 4 would require a less explicit 'when'.

Trigger Term Quality

It includes natural user phrasings in quotes: 'write a PRD', 'plan this', 'track this in task.md', and 'what did we learn', plus descriptive triggers like 'changes architecture' and 'spans several files or steps'. These are exactly the phrases a user would naturally say when needing this skill, with no jargon-only or generic filler; there are no meaningful synonyms left out for this domain.

Distinctiveness Conflict Risk

The niche is clear (multi-step work management via PRDs, task.md, and a lessons file) and the quoted triggers ('write a PRD', 'track this in task.md', 'what did we learn') are distinctive enough that this is unlikely to fire for the wrong skill. It matches the score-5 anchor for clear niche and minimal conflict risk rather than 4, which presumes overlap with closely related skills.