How do I trigger this skill in Claude Code?

You can use phrases like 'create a Semgrep rule', 'write a Semgrep rule', or ask to 'detect this bug pattern using Semgrep'.

What is the Semgrep Rule Creator skill?

It is a specialized capability for Claude Code that assists users in writing, building, and refining custom Semgrep rules for static analysis.

Who developed this skill?

This skill was developed by Trail of Bits, a leading cybersecurity research and consulting firm.

Can this skill find security vulnerabilities?

Yes, it is specifically designed to create rules that detect security flaws, logic bugs, and insecure coding patterns across various programming languages.

Do I need to know Semgrep syntax to use this?

While knowledge of Semgrep is helpful, this skill allows you to describe a bug pattern in plain English, and Claude will generate the corresponding YAML rule for you.

Semgrep Rule Creator

Name: Semgrep Rule Creator
Author: plurigrid

byplurigrid

•

Security & Testing

Generates custom Semgrep rules to detect security vulnerabilities and logic bugs within source code.

About

The Semgrep Rule Creator skill empowers developers and security engineers to automate the detection of problematic code patterns by generating tailored Semgrep rules. It translates natural language descriptions of bug patterns or security flaws into precise, YAML-based Semgrep syntax, making it easier to scale security audits, perform variant analysis, and prevent regressions across large codebases. Developed by the security experts at Trail of Bits, this skill is essential for maintaining high-security standards and streamlining static analysis workflows.

Key Features

Support for variant analysis to find bug patterns across repositories
2 GitHub stars
Automated Semgrep rule generation from natural language descriptions
Expert-guided rule structures based on security industry best practices
Tailored detection of complex security vulnerabilities and logic flaws
Streamlined creation of YAML-formatted rules for immediate deployment

Use Cases

Converting a specific logic bug found during manual review into a reusable rule to prevent regressions
Automating the enforcement of internal secure coding standards and organizational best practices
Writing custom rules to identify instances of a newly discovered vulnerability across an entire codebase

About

Key Features

Support for variant analysis to find bug patterns across repositories
2 GitHub stars
Automated Semgrep rule generation from natural language descriptions
Expert-guided rule structures based on security industry best practices
Tailored detection of complex security vulnerabilities and logic flaws
Streamlined creation of YAML-formatted rules for immediate deployment

Use Cases

Converting a specific logic bug found during manual review into a reusable rule to prevent regressions
Automating the enforcement of internal secure coding standards and organizational best practices
Writing custom rules to identify instances of a newly discovered vulnerability across an entire codebase