Conciseness

The ~980-line body re-explains concepts Claude already knows (FastAPI's philosophy/feature list, what async/await is for, CRUD boilerplate, basic Docker/Gunicorn usage) and inlines large tutorial-scale reference blocks; this is noticeably verbose with several padded sections. It is above 1 because the code is generally accurate rather than entirely filler.

Actionability

It provides mostly executable, copy-paste-ready code across Pydantic models, routing, dependency injection, auth, SQLAlchemy CRUD, tests, and Docker, with only minor gaps (e.g., undefined helpers like get_user_from_db and hash_password). It is not a 5 because some examples reference undefined helpers and skip wiring needed to actually run.

Workflow Clarity

Topics are presented as a reference catalog rather than a sequenced workflow, and destructive/batch operations (DB CRUD, deployment) lack explicit validation checkpoints or feedback loops; the rubric caps such skills at 3 and this sits below that due to rough, gap-filled sequencing. It is above 1 because a rough topic ordering exists.

Progressive Disclosure

Everything is inlined into one monolithic SKILL.md with no bundle files in references/scripts/assets and no one-level-deep pointers, so large blocks that clearly belong in separate reference files are inlined. It is above 1 because the body uses section headers that provide some navigability.

Specificity

Lists several concrete capabilities ("async patterns", "Pydantic validation", "dependency injection", "production deployment"), which is several specific actions with only minor coverage gaps; it is not a 5 because coverage is not comprehensive (e.g., routing, auth, testing are absent).

Completeness

The description clearly states what the skill does but has no "Use when..." clause or equivalent explicit trigger guidance, which the rubric caps at 3; it is above 2 because the "what" is concrete rather than vague.

Trigger Term Quality

Includes strong natural keywords users would say ("FastAPI", "async patterns", "Pydantic", "dependency injection", "production deployment") but lacks a few common variations (e.g., "REST API", "OAuth2", "Swagger/OpenAPI", file/extension cues); below 5 because synonym coverage is incomplete.

Distinctiveness Conflict Risk

"FastAPI" plus named sub-capabilities carve a mostly distinct niche with only minor overlap risk against a generic Python-backend or Django/Flask skill; it is not a 5 because the trigger phrasing is not sharp enough to fully eliminate overlap with adjacent web-framework skills.