Optional skills

Devbook writes skills only where no vendor maintains one. Each stands alone, with no links to other Devbook files, and loads only when a request matches its description. Install the ones a project needs; the bootstrap prompt counts them toward its cap of three.

Skill	Use it for
api-design	Adding or changing REST endpoints: OpenAPI first, RFC 9457 problem details, status codes, pagination, idempotency keys, ETags and Standard Webhooks
db-migration	Relational schema changes: a plan you approve, constraints and indexes, and expand-migrate-contract for live tables
feature-doc	FEATURE.md docs with EARS rules and stable IDs, only for features with business rules
licensing	Licences of dependencies, assets and copied code, with SPDX identifiers and the notices they need
llm-security	Features that call a language model: untrusted input and output, permissions in code, confirmation for actions, and cost caps

Install

In Claude Code, add Devbook’s marketplace once, then install a skill as a plugin:

claude plugin marketplace add nitinraturi/devbook.raturi.in
claude plugin install api-design@devbook --scope project

In Codex, Cursor, GitHub Copilot or Gemini CLI, install the skill with the GitHub CLI:

gh skill install nitinraturi/devbook.raturi.in api-design --agent codex

Use --agent cursor, github-copilot or gemini-cli for the other agents. Skills installed by gh skill record their source, so gh skill update finds new versions.

The skills are licensed CC BY 4.0. Each one has measured eval cases in its plugin folder, and the results are on the evals page.