Conciseness

The body is dense with project-specific contract knowledge (action framework, sync counters, share tables, role guards) that Claude could not know, with no filler or explanations of generic concepts. A few multi-clause paragraphs (the credential/preflight block and the provider-api block in area 2) run long and could be trimmed or pushed to the referenced skills, so it is efficient with minor instances of over-explanation.

Actionability

Guidance is fully concrete: exact APIs and options (useActionQuery, defineAction, http: { method: "GET" }, ownableColumns(), createSharesTable(...), defineAppRoles({ appId, roles, defaultRole }), pnpm action view-screen), one executable TSX snippet for the change-versions pattern, and three worked example tables (compose email, create form, chart type) covering common cases. This matches the copy-paste-ready, common-cases-covered level-5 anchor.

Workflow Clarity

The workflow is an explicitly ordered four-area sequence ('work through these four areas in order'), closed by a numbered 6-item Verification checklist that functions as explicit checkpoints, and reinforced by an Anti-Patterns section naming each failure mode and its consequence. This matches the level-5 anchor (clear sequence, explicit validation steps, checklist for a complex process).

Progressive Disclosure

No bundle files exist, and the body is well-sectioned with clearly signaled, one-level-deep pointers to dedicated skills (real-time-sync, sharing, authentication, external-agents, performance, internationalization) for deep topics. However, some detail-heavy material — the two query paths with poll backoff intervals (1, 2, then 5 minutes) and the credential preflight steps — is inlined rather than left in the referenced skills, leaving minor organization gaps at the level-4 anchor.

Specificity

The description names the domain ('every new feature') and one concrete artifact ('the four-area checklist') plus its outcome ('agent and UI stay in parity'), but it never enumerates the four areas themselves (UI, Action, Skills/AGENTS, App-state sync), so coverage is not comprehensive. It names domain and 1-2 concrete actions without listing several specific ones, matching the level-3 anchor rather than level 4.

Completeness

It clearly answers both parts: 'what' is the four-area checklist every new feature must complete to keep agent and UI in parity, and 'when' is the explicit trigger clause 'Use when adding any feature, integration, or capability'. Both are explicit with concrete trigger phrases, matching the level-5 anchor.

Trigger Term Quality

'Use when adding any feature, integration, or capability' supplies natural phrases users would actually say ('adding a feature', 'new integration', 'capability'), giving good keyword coverage. A few natural variants (e.g., 'build', 'implement', 'new screen/page') are missing, keeping it below the comprehensive level-5 anchor.

Distinctiveness Conflict Risk

'Adding any feature, integration, or capability' is deliberately broad and overlaps with the closely related skills the body delegates to (sharing, authentication, real-time-sync, external-agents), so it would co-trigger in those scenarios. It is somewhat specific with its agent/UI-parity framing but still carries overlap risk, matching the level-3 anchor.