Conciseness

The body is dense and directive with zero explanation of concepts Claude already knows — every line instructs an action ('Replace `Serializer` / `ModelSerializer` transport DTO usage with explicit typed DTOs'). However, the parity contract is restated across Migration Policy, Translation Rules, and the Output Checklist ('preserve ... unless drift approved' appears ~10 times), which is more than purely minor over-explanation and could be consolidated.

Actionability

Guidance is concrete and specific: exact DMR constructs are named (`Controller[...]`, `Body[...]`, `Query[...]`, `Path[...]`, `Headers[...]`, `Cookies[...]`, `ResponseSpec`, `validate_responses`), alongside exact DRF constructs to find and replace. Per the rubric's code-vs-instruction note, absence of code in an instruction-only skill is not penalized. It falls short of 5 because a few steps stay high-level ('inspect existing project libraries', 'run the same commands CI uses') without naming or exemplifying concrete commands.

Workflow Clarity

The workflow is clearly sequenced (inventory DRF surface → inventory native batteries → freeze behavior → decide error strategy → migrate by slice → port auth/tests → validate per slice → finish gate) with explicit gates ('required gate', 'Do not mark slice done until linters pass, tests pass, report is updated') and a checklist. It falls short of the 5 anchor only because the fix-and-revalidate feedback loop is implied by the finish gate rather than stated as an explicit 'if validation fails, fix and re-run' step.

Progressive Disclosure

The single bundle file (references/drf-to-dmr-map.md) is real, one level deep, and clearly signaled in the required-docs list ('Local map: [references/drf-to-dmr-map.md]'). The body is well-sectioned and navigable. It does not reach 5 because nearly all operational detail lives inline in the ~190-line SKILL.md — the Migration Pitfalls section partially duplicates the reference map and could itself be offloaded or consolidated, leaving the body closer to a true overview.

Specificity

The description lists multiple concrete, specific actions: 'Migrate an existing Django API from Django REST Framework to django-modern-rest while preserving routes, request/response contracts, auth, permissions, throttling, pagination, and test coverage.' These are concrete preserved behaviors plus a concrete migration action, giving comprehensive coverage of the skill's scope. It is not below 5 because nothing in the anchor's coverage expectations is missing; it is not above because 5 is the scale maximum.

Completeness

It explicitly answers 'what' (migrate a Django API from DRF to django-modern-rest while preserving a specific list of contracts) and 'when' with an explicit trigger clause: 'Use when replacing APIView/ViewSet/GenericAPIView and DRF serializers/routers with dmr controllers/routers and typed DTOs.' Both halves are concrete; this matches the score-5 anchor including a concrete 'Use when' trigger phrase.

Trigger Term Quality

It covers the natural terms a user would say for this task: both the full name 'Django REST Framework' and the abbreviation 'DRF', 'Django API', 'django-modern-rest', plus the concrete class/API names users would mention ('APIView/ViewSet/GenericAPIView', 'serializers', 'routers', 'typed DTOs'). There are no file extensions relevant to this domain; synonym coverage (DRF/Django REST Framework) is present. Not below 5 because both naming variants and the framework names users actually type are present.

Distinctiveness Conflict Risk

This is a clear niche (DRF to django-modern-rest migration) with distinct, domain-specific triggers — no other plausible skill would trigger on 'replacing APIView/ViewSet/GenericAPIView and DRF serializers/routers with dmr controllers'. Conflict risk is minimal, matching the 'clear niche with distinct triggers' anchor. It also uses third-person/imperative voice, so no voice penalty applies.