Scaffold a production-ready async FastAPI application with SQLAlchemy 2.0, Alembic migrations, Pydantic v2, and structured logging.
90
87%
Does it follow best practices?
Impact
Pending
No eval scenarios have been run
Passed
No known issues
Quality
Discovery
82%Based on the skill's description, can an agent find and select it at the right time? Clear, specific descriptions lead to better discovery.
This description excels at specificity and distinctiveness by naming exact technologies and versions, making it easy to identify when this skill applies. However, it lacks an explicit 'Use when...' clause which would help Claude know the trigger conditions beyond just technology name matching. The description is concise and uses proper third-person voice.
Suggestions
Add a 'Use when...' clause specifying trigger scenarios, e.g., 'Use when the user wants to start a new FastAPI project, needs a Python web API scaffold, or mentions setting up a backend with async database support.'
Consider adding common alternative phrasings users might use, such as 'Python web API', 'REST API scaffold', or 'backend project setup'.
| Dimension | Reasoning | Score |
|---|---|---|
Specificity | Lists multiple specific concrete actions and technologies: 'Scaffold a production-ready async FastAPI application with SQLAlchemy 2.0, Alembic migrations, Pydantic v2, and structured logging.' This clearly describes what will be created with specific version numbers and components. | 3 / 3 |
Completeness | Clearly answers 'what does this do' (scaffold a FastAPI app with specific stack), but lacks an explicit 'Use when...' clause or trigger guidance. The when is only implied through the technology names. | 2 / 3 |
Trigger Term Quality | Contains strong natural keywords users would say: 'FastAPI', 'SQLAlchemy', 'Alembic', 'migrations', 'Pydantic', 'async', 'production-ready'. These are terms developers naturally use when requesting this type of project setup. | 3 / 3 |
Distinctiveness Conflict Risk | Highly distinctive with a specific tech stack combination (FastAPI + SQLAlchemy 2.0 + Alembic + Pydantic v2). Unlikely to conflict with other skills due to the precise framework and version specifications. | 3 / 3 |
Total | 11 / 12 Passed |
Implementation
92%Reviews the quality of instructions and guidance provided to agents. Good implementation is clear, handles edge cases, and produces reliable results.
This is an excellent, highly actionable skill that provides production-ready FastAPI scaffolding with complete, executable code examples. The content is lean and assumes Claude's competence with Python and web frameworks. The only weakness is the monolithic structure - the extensive code patterns could benefit from being split into separate reference files for better progressive disclosure.
Suggestions
Consider splitting 'Essential Patterns' into a separate PATTERNS.md file, keeping only a quick-start example in the main skill
Move 'Integration Notes' to a separate DEPLOYMENT.md or INTEGRATION.md file with expanded guidance
| Dimension | Reasoning | Score |
|---|---|---|
Conciseness | The skill is highly efficient - it provides executable code without explaining what FastAPI, SQLAlchemy, or async programming are. Every section delivers actionable content with no padding or unnecessary context. | 3 / 3 |
Actionability | Fully executable code throughout - complete pyproject.toml, working Python modules, bash commands for scaffolding, and copy-paste ready patterns. All code examples are complete and production-ready. | 3 / 3 |
Workflow Clarity | Clear sequenced workflow in 'First Steps After Scaffold' section with numbered steps. The scaffold command section provides explicit ordering, and common commands are organized logically. Migration workflow includes proper sequencing. | 3 / 3 |
Progressive Disclosure | Content is well-organized with clear sections, but this is a monolithic file with ~300 lines of inline code. The project structure, essential patterns, and integration notes could be split into separate reference files for better navigation. | 2 / 3 |
Total | 11 / 12 Passed |
Validation
90%Checks the skill against the spec for correct structure and formatting. All validation checks must pass before discovery and implementation can be scored.
Validation — 10 / 11 Passed
Validation for skill structure
| Criteria | Description | Result |
|---|---|---|
frontmatter_unknown_keys | Unknown frontmatter key(s) found; consider removing or moving to metadata | Warning |
Total | 10 / 11 Passed | |
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Table of Contents
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