7 Best Claude Skills for Documentation

The best Claude documentation skills are artifact-specific and evidence-driven. A README, API contract, incident runbook, onboarding path, architecture decision, and system diagram have different readers and truth sources. Pair the relevant writer with a verification skill instead of asking for “complete docs” in one pass.

1. code-example-verifier: test what readers will copy

code-example-verifier discovers fenced code blocks and inline commands, classifies their language and execution requirements, builds the smallest safe harness, and compares actual behavior with the surrounding claims. It reports each example as verified, failed, statically checked, or blocked.

It refuses unsafe or stateful execution by default. Examples that require production access, destructive commands, real credentials, paid resources, or unavailable platforms remain clearly marked instead of being called “verified.”

2. readme-generator: create the project front door

readme-generator derives installation, development, testing, build, configuration, and usage instructions from the repository. It prioritizes the shortest successful path for the intended user and avoids documenting scripts or environment variables that do not exist.

3. openapi-doc-writer: document HTTP behavior precisely

openapi-doc-writer turns routes, validation schemas, authentication, handlers, and tests into an OpenAPI contract. It covers success and error responses, reusable schemas, parameters, examples, and security requirements, then validates the document with available tooling.

4. runbook-writer: make operations executable

runbook-writer organizes a procedure around trigger, impact, prerequisites, diagnosis, mitigation, rollback, escalation, and verification. Commands include environment and expected result so an operator can decide whether to continue.

Runbooks should use placeholders for secrets and avoid irreversible steps without a visible approval boundary.

5. onboarding-guide-writer: shorten the first contribution

onboarding-guide-writer maps prerequisites, access, local setup, architecture orientation, common commands, debugging, contribution flow, and known traps. Its success criterion is a new contributor reaching a small verified change—not merely installing dependencies.

6. adr-writer: preserve decision context

adr-writer records status, context, decision drivers, considered options, chosen decision, consequences, and follow-up. It separates known constraints from opinion and captures rejected alternatives without turning the document into a retrospective justification.

7. architecture-diagram-generator: show relationships

architecture-diagram-generator creates maintainable diagram source—such as Mermaid—from verified components, boundaries, data stores, external systems, and flows. A focused diagram should answer one question and use a legend where trust or deployment boundaries matter.

Recommended documentation workflow

Choose one writer for the audience, then verify its claims. For a new repository, combine readme-generator and code-example-verifier. For a service, add openapi-doc-writer and runbook-writer. For a significant technical change, add an ADR and a focused architecture diagram.

npx agentscamp add skills/readme-generator
npx agentscamp add skills/code-example-verifier
npx agentscamp add skills/openapi-doc-writer

A useful completion report lists changed files, evidence consulted, commands executed, examples that passed, and anything left unverified. That makes the documentation auditable and gives maintainers a precise follow-up list.