Traction scoreGitHub stars can be faked, so popularity alone can be misleading. Traction Score looks for broader signs of recent attention, adoption, and active maintenance.
This skill provides a structured approach to defining and auditing the critical components of HTTP/JSON APIs. It guides the evaluation of endpoints, request and response shapes, and essential operational constraints like idempotency and rate limiting.
It is designed for developers and agents who need to ensure that API changes, OpenAPI specifications, or route diffs do not break consumers while maintaining standards for authentication and versioning.
WHO IT'S FOR
AI agent / automation builders
implement evidence-first development loops for agents
Compatible AgentsThe repository documents support for these agents. The skills may also work with other agents that can load SKILL.md files, but they may need some setup or small changes.
Draft an executable specification for a small change
Uses old-coder
Repository or worktree path
Description of the requested behavior
Known expected outputs, edge cases, and error cases
Any restrictions on isolation, dependencies, or tooling changes
Use the old-coder skill for [repository or worktree path]. Draft only the executable SPEC for this small change: [requested behavior]. Include concrete inputs and expected outputs, edge cases, error cases, the proposed isolation mechanism, and any setup or tooling changes. Stop before modifying implementation files so I can approve or reject the SPEC.
Path to an OpenAPI specification or HTTP route diff
Whether the API is public or internal
Whether the surface is existing or greenfield
Relevant product resource-model context
Use the old-coder-api skill to review [OpenAPI specification path or HTTP route diff]. First state whether the API is public or internal, existing or greenfield, and whether the product's resource model supports the surface. Then assess the documented API gates, marking each ✓, ✗ with a concrete fix, N/A with a reason, or ? with the reason it remains unverified. This is review-only; do not create an implementation workflow.
Claude
Codex
Cursor