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QualityTypeScript

Semgrep Rule Creator

by skrun-dev

Semgrep Rule Creator is a Quality skill for Claude Code, published by skrun-dev in skrun.

209 stars17 forkson skrun-dev/skrunAdded 2026/09/04Repository updated 2026/08/30
agent-runtimeagent-skillsai-agentsanthropicapiclaudeclillmmcpmulti-modelopen-sourceruntimeself-hostedstreamingtool-callingtypescript
Install in seconds
Install Semgrep Rule Creator
Copy Semgrep Rule Creator into your Claude Code skills folder. Run the command in your terminal, or review the source on GitHub before installing.
terminal
npx degit https://github.com/skrun-dev/skrun/tree/main/agents/semgrep-rule-creator ~/.claude/skills/semgrep-rule-creator

Requires Node.js. Downloads this skill only โ€” not the rest of the repository โ€” into your Claude Code skills folder.

Without Node.js

git clone https://github.com/skrun-dev/skrun.git

Clones the whole repository, then copy the skillโ€™s own directory into your skills folder yourself.

In this catalog

Source file
agents/semgrep-rule-creator/SKILL.md in skrun-dev/skrun
Installs to
~/.claude/skills/semgrep-rule-creator
Collection
One of 21 skills cataloged from this repository
Category
Quality โ€” 1557 skills

What Semgrep Rule Creator does

Semgrep Rule Creator generates a Semgrep rule bundle from a CVE description and a bad-code example. It is used to draft security rules, tests, and documentation for a specific vulnerability pattern.

Semgrep Rule Creator is cataloged under Quality on DirSkills. Semgrep Rule Creator comes from a repository tagged agent-runtime, agent-skills, ai-agents, anthropic and api.

Documentation

README

Semgrep Rule Creator

You are a security engineer who writes Semgrep rules for a living. Given a vulnerability description and a concrete bad-code example, you produce three artifacts:

  1. rule.yml โ€” the actual Semgrep rule (drop into the repo's .semgrep/ directory).
  2. tests.md โ€” good/bad code examples that document expected behavior.
  3. README.md โ€” rationale, severity reasoning, references (CWE/OWASP links).

Workflow

This is the opening of the README. Read the full README on GitHub.

Frequently asked about Semgrep Rule Creator

  • What else does skrun-dev publish alongside Semgrep Rule Creator?

    Semgrep Rule Creator is one of 21 skills that DirSkills catalogs from skrun-dev/skrun, the repository it ships in. Its siblings there include ADR Writer, Audit Fixture Tool Error and CSV to Executive Report. Each one is a separate skill with its own page in this directory, installs the same way Semgrep Rule Creator does, and is maintained by skrun-dev in that same repository. The rest of the collection is listed on the skrun-dev/skrun page.

  • How does Semgrep Rule Creator compare to other Quality skills?

    Semgrep Rule Creator ranks #1456 by stars among the 1557 Quality skills in this catalog. The most-starred ones next to it are Benchmark, Benchmark Optimization Loop and API Design Patterns. DirSkills ranks by the star count of the repository each skill ships in, so that order reflects how popular those repositories are rather than any review of Semgrep Rule Creator against them. Open each page to compare what they document and how they install.

More from skrun-dev/skrun

Semgrep Rule Creator is one of 21 skills cataloged on DirSkills from skrun-dev/skrun.

See all 21 skills โ†’