mcpbeat

Secleak Check

instructa/secleak-check

Run or install repo security leak checks with BetterLeaks and Trivy. Use when asked to scan for leaked secrets, vulnerable dependencies, misconfigurations, add secret-leak guardrails, add BetterLeaks, add forbidden-path hooks, or run secleak-check before release.

4k tokens
context cost
the whole folder, loaded on every use
5
files
ships runnable scripts
0
copies elsewhere
how many repositories repackaged it
131
stars on the repo
on the repository, not the skill itself

Install

one command, takes just this skill from the repository
npx skills add https://github.com/instructa/agent-skills --skill secleak-check

What comes with it

12 232 bytes besides the instruction
references/examples.md
references/guardrails.md
scripts/block-forbidden-staged-files.mjs
scripts/secleak-check.sh

The instruction itself

6 sections, as written by the author

Secleak Check

Workflow

  • Confirm cwd and repo root.
  • For a scan request, run the bundled script from this skill, not a target-repo script.
  • For a setup request, add repo-local guardrails from references/guardrails.md.
  • Quote exact failing tool output, but never print raw secret values.
  • If the bundled script is unavailable, use the manual fallback commands below.

Bundled command

Resolve scripts/secleak-check.sh relative to this SKILL.md.

Common installed path:

/Users/kregenrek/.agents/skills/secleak-check/scripts/secleak-check.sh

Manual fallback

betterleaks git --no-banner --redact=100 .
trivy fs --scanners vuln,secret,misconfig --exit-code 1 .

Prefer .betterleaks.toml when present. If only .gitleaks.toml exists, pass --config .gitleaks.toml; BetterLeaks supports it for compatibility.

Reporting

  • betterleaks findings are blockers until verified false-positive or remediated.
  • For historical leaks, report file, line, commit, rule, and fingerprint only.
  • trivy dependency vulnerabilities should be summarized by severity and top fixed versions.
  • Misconfig findings inside node_modules are dependency artifact noise unless that file is built or shipped by the repo.

Guardrail setup

When asked to harden a repo against secret leaks:

  • Inventory existing .betterleaks.toml, .gitleaks.toml, secret-scan workflows, Dependabot, and hook tooling.
  • Add .forbidden-paths.regex and a staged-file hook.
  • Add .betterleaks.toml with path-based filters only for fixtures.
  • Add repo-local scripts/secleak-check.sh only when the repo wants a first-class local script.
  • Add CI secret scanning and Dependabot when GitHub Actions are in scope.
  • Update .gitignore for runtime dirs, env files, credentials, keys, and infra state.

Templates live in references/guardrails.md; small examples live in references/examples.md.

How to use it

Copy the folder

Take instructa/secleak-check from the repository into ~/.claude/skills for personal use, or into .claude/skills inside a project.

Check the name does not clash

The agent identifies a skill by the name field in its header. Two skills with the same name cannot sit side by side — one of them will be ignored.