version: "1.0.1" name: semgrep-rule-creator description: Create custom Semgrep rules for detecting bug patterns and security vulnerabilities. This skill should be used when the user explicitly asks to "create a Semgrep rule", "write a Semgrep rule", "make a Semgrep rule", "build a Semgrep rule", or requests detection of a specific bug pattern, vulnerability, or insecure code pattern using Semgrep. category: semgrep-rule-creator author: Trail of Bits source: trailofbits/skills license: AGPL-3.0 trit: 1 trit_label: PLUS verified: true featured: false

Semgrep Rule Creator Skill

Trit: 1 (PLUS) Category: semgrep-rule-creator Author: Trail of Bits Source: trailofbits/skills License: AGPL-3.0

Description

Create custom Semgrep rules for detecting bug patterns and security vulnerabilities. This skill should be used when the user explicitly asks to "create a Semgrep rule", "write a Semgrep rule", "make a Semgrep rule", "build a Semgrep rule", or requests detection of a specific bug pattern, vulnerability, or insecure code pattern using Semgrep.

When to Use

This is a Trail of Bits security skill. Refer to the original repository for detailed usage guidelines and examples.

See: https://github.com/trailofbits/skills

Related Skills

• audit-context-building
• codeql
• semgrep
• variant-analysis

SDF Interleaving

This skill connects to Software Design for Flexibility (Hanson & Sussman, 2021):

Primary Chapter: 4. Pattern Matching

Concepts: unification, match, segment variables, pattern

GF(3) Balanced Triad

semgrep-rule-creator (−) + SDF.Ch4 (+) + [balancer] (○) = 0

Skill Trit: -1 (MINUS - verification)

Connection Pattern

Pattern matching extracts structure. This skill recognizes and transforms patterns.