agentleFS
OBaruchOBaruch/ai-native-sdlc-template/.claude/skills/secure-api-review/SKILL.md

secure-api-review

Skill4 starsChanged 30 days agoMITView on GitHub

Apply the API security standard. Use whenever you create or change an HTTP/gRPC endpoint, route, controller or handler, review API code, or write or modify an OpenAPI/proto contract.

1 other project uses a version of this, 1 of them edited.

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The file

We split this skill into the rules it gives an agent

5 rules. About 0 are common, 2 are distinctive, and 3 are very specific to this project.

  • ≈0

    Common · estimate

    Many files like this have a rule of this kind.

  • ≈2

    Distinctive · estimate

    This author's own choices. Worth a look.

  • 3

    Very specific

    Tied to their project's names, files or tools. Probably skip.

  • Common
  • Distinctive
  • Very specific
  1. Very specific:

    Authentication: every route requires <the gateway token / session mechanism>.

    line 12
  2. Distinctive:

    Authorization: check the caller's permission for the specific resource, not only that they are logged in.

    line 14
  3. Very specific:

    Audit: every state-changing call emits an audit event with actor, action, target and time via <audit library/function>.

    line 20
  4. Very specific:

    Run bash .agents/skills/secure-api-review/scripts/check-endpoints.sh and include its output in your summary.

    line 27
  5. Distinctive:

    Stop and flag it as an area of concern for the policy owner.

    line 32

≈ “Common” is an estimate: at least 1 in 5 of the 350,495 skill files we read have a rule of the same kind, not the same words. “Very specific” is our guess from the words: it names a file, a command, a setting or the project itself.

Keep what fits and drop the rest. Your version, ready for your agents.
Files
SKILL.md

Secure API standard

Owner: <security architect> · Source of truth: <link to the API security policy> · Policy version: <x.y>

Apply every rule below to each endpoint you add or change.

  1. Authentication: every route requires <the gateway token / session mechanism>. The only anonymous routes are <e.g. /health, /ready>.
  2. Authorization: check the caller's permission for the specific resource, not only that they are logged in. Deny by default.
  3. Input validation: validate path, query and body against the contract (<OpenAPI/proto location>); reject unknown fields; bound sizes and lengths.
  4. Output: return only fields the contract declares. Errors never echo input, stack traces or internal identifiers.
  5. Audit: every state-changing call emits an audit event with actor, action, target and time via <audit library/function>.
  6. Sensitive data: fields classified as <pii / confidential> never appear in logs, metrics labels or error messages.
  7. Rate limiting: public endpoints declare a limit in <where limits are configured>.

Check

Run bash .agents/skills/secure-api-review/scripts/check-endpoints.sh and include its output in your summary. If it reports a finding you believe is wrong, say so explicitly instead of silencing it.

If a rule cannot be met

Stop and flag it as an area of concern for the policy owner. Do not invent an exception.

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