Conciseness

The ~190-line body is dense, imperative, and assumes Claude's competence with no concept explanations, but migration timing/budget rules are duplicated between section 5 ("First optimize a migration exceeding the roughly one-to-two-minute budget; flag it for human review") and the Constraints section, so minor trimming is possible.

Actionability

Concrete guidance throughout — "rg on distinctive SQL fragments", "EXPLAIN (ANALYZE, BUFFERS, FORMAT JSON)", exact evidence to capture, and a full PR-content checklist — though most copy-paste commands (e.g. the pnpm benchmark invocation) live in the reference files rather than the body, leaving minor gaps.

Workflow Clarity

Eight numbered sections form a coherent sequence with explicit validation at every step ("Prove the baseline exhibits the suspected cost before editing", "Reject or revise the change if either proof fails", "Do not call an interrupted suite a pass", "Do not finish with 'CI pending.'"), feedback loops for error recovery, and checklists via the claims and regression-evidence tables.

Progressive Disclosure

Both references exist, are one level deep, and are clearly signaled at point of need ("Read [Cloud discovery](references/cloud-discovery.md) when starting from a hosted workspace"), but the main file is a full procedure manual with inlined detail (PR-checks loop micro-rules, the partially duplicative Constraints section) rather than a lean overview.

Specificity

"Diagnose and fix slow Paperclip PostgreSQL queries using Cloud and Neon evidence, local reproduction, performance and result comparisons, regression tests, and a PR with passing checks" lists 7+ concrete actions covering the workflow end to end — comprehensive coverage matching the top anchor.

Completeness

It explicitly answers both what ("Diagnose and fix slow Paperclip PostgreSQL queries using…") and when ("Use for costly queries, repeated database work, or slow requests with a suspected database cause") with concrete trigger phrases in third-person voice.

Trigger Term Quality

Natural phrases like "costly queries", "slow requests", "repeated database work", and "suspected database cause" give good coverage, but common user phrasings such as "optimize", "query timeout", or "database performance" are missing.

Distinctiveness Conflict Risk

The description is scoped to Paperclip PostgreSQL queries with distinct triggers (costly queries, slow requests with a suspected database cause), forming a clear niche with minimal conflict risk against generic skills.