Conciseness

The body is dense but almost entirely domain-specific knowledge Claude would not already know (gated detectors, GRDB version thresholds, 0xDEAD10CC semantics); a few explanatory passages could be trimmed, but it largely assumes competence and avoids generic concept primers, sitting just below the lean anchor.

Actionability

Every detector ships exact grep patterns, Read-based verification steps, and copy-paste-ready fix code (e.g. `execute(literal: "WHERE id = \(id)")`, `try db.notifyChanges(in: <Table>.all())`), covering the common cases concretely.

Workflow Clarity

The audit is a clear five-phase sequence with explicit gating checkpoints, mandatory Read verification before reporting, false-positive and limitation call-outs, and compound-severity feedback logic — exactly the validate-then-report feedback loop the rubric rewards for batch/database operations.

Progressive Disclosure

Content is well organized into phases with one-level-deep references to external `axiom-data` skill docs (e.g. `skills/grdb-performance.md §6`); there are no local bundle files to split into, so the structure is good, though the references point outside this skill's own bundle rather than to co-located reference files.

Specificity

The description names the domain (GRDB performance) and enumerates concrete triggering situations ('slow GRDB queries, app-group database setup audit, a ValueObservation that stopped updating, or pre-release GRDB scan'), but it never states what the skill actually does (detect anti-patterns), so it sits at the 'names domain, some concrete actions' level rather than a comprehensive action list.

Completeness

The 'when' is explicitly and well covered by the 'Use when...' clause, but the 'what' is only weakly implied — it never says the skill audits or detects anti-patterns, so it matches the 'clear when, missing/weak what' anchor rather than the both-present anchors.

Trigger Term Quality

Natural user-facing phrases like 'GRDB performance review', 'slow GRDB queries', 'ValueObservation that stopped updating', and 'pre-release GRDB scan' are realistic things a developer would say; a few synonyms or version-specific terms are missing, keeping it just below the comprehensive anchor.

Distinctiveness Conflict Risk

The GRDB-specific triggers carve a clear niche with minimal conflict risk against unrelated skills; only a small overlap risk remains with sibling DB auditors (core-data, swiftdata, schema-auditor), which the body later disambiguates.