Content
36%Reviews the quality of instructions and guidance provided to agents. Good implementation is clear, handles edge cases, and produces reliable results.
This skill is extremely thin and lacks any actionable detail. While it is concise, it crosses the line from efficient into unhelpfully vague—providing no code examples, no Fastify-specific patterns, no schema examples, and no concrete testing instructions. It reads more like a task checklist than a skill that teaches Claude how to perform the work.
Suggestions
Add a concrete, executable Fastify route handler example (e.g., a complete route file under `src/routes/` with request/response schema using Fastify's schema validation).
Specify how types should be kept in sync—e.g., whether to use TypeBox, JSON Schema, or generated types, with a concrete example.
Replace 'Test it' with specific testing guidance: a curl command, a test file example, or instructions for running the test suite.
Add a validation checkpoint after creating the route (e.g., 'Start the server and verify the route appears in the route list or responds correctly').
| Dimension | Reasoning | Score |
|---|---|---|
Conciseness | The content is brief and doesn't over-explain concepts Claude already knows. However, the opening line 'Add a new API endpoint to the Fastify backend' slightly restates what the skill title/description already conveys, a minor redundancy. | 4 / 5 |
Actionability | The guidance is entirely vague with no concrete code, commands, file naming conventions, schema examples, or specific Fastify patterns. Every step is abstract ('Create the route handler', 'Add the request and response schema', 'Test it') with no executable detail. | 1 / 5 |
Workflow Clarity | A rough sequence of four steps is present, but steps are poorly defined with no specifics on how to perform them. There are no validation checkpoints, no error handling guidance, and 'Test it' is completely undefined. | 2 / 5 |
Progressive Disclosure | The content is short and doesn't need external files, but it also lacks any structure beyond a single heading and numbered list. For such a simple skill, the organization is adequate but not exemplary—it could benefit from inline examples or references to project conventions. | 3 / 5 |
Total | 10 / 20 Passed |