semgrep-rule-variant-creator

Port Semgrep rules across programming languages with applicability analysis and test creation.

47|5|Updated Apr 25, 2026
One-click install
npx skills add https://github.com/RedHatProductSecurity/prodsec-skills --skill semgrep-rule-variant-creator-redhatproductsecurity
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: semgrep-rule-variant-creator
Source: https://github.com/RedHatProductSecurity/prodsec-skills/tree/main/module/skills/semgrep-rule-variant-creator
Command: npx skills add https://github.com/RedHatProductSecurity/prodsec-skills --skill semgrep-rule-variant-creator-redhatproductsecurity

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes scripts (resource) and references (resource) components.

What problem does it solve?

This Skill simplifies the process of adapting existing Semgrep rules to different programming languages, reducing manual effort and ensuring consistent security checks across diverse codebases.

Core Features & Use Cases

  • Applicability Analysis: Determines if a security pattern applies to a target language before porting.
  • Test-First Workflow: Guides users to create relevant test cases before rule adaptation.
  • Automated Rule Translation: Assists in converting pattern syntax and semantics for various languages.
  • Validation Support: Checks the correctness of portable rules and tests, accelerating deployment.

Quick Start

Use the tool within your development environment to analyze your existing rules, perform applicability checks, and generate language-specific rule directories ready for testing.

Frequently Asked Questions about semgrep-rule-variant-creator

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I port existing Semgrep rules to support multiple programming languages?

Porting Semgrep rules across multiple programming languages is automated by analyzing applicability, translating pattern syntax, and validating language-specific semantics to ensure consistent security checks across diverse codebases.

What is the best way to automate Semgrep rule translation for different language semantics?

Automating Semgrep rule translation involves converting existing pattern syntax and semantics to match target language idioms, guided by a test-first workflow that validates correctness before deployment.

Do I need to create test cases before adapting static-analysis rules to another language?

Creating relevant test cases before adapting static-analysis rules is required by the test-first workflow to verify that ported Semgrep patterns correctly match the target language's semantics and idioms.

How does applicability analysis determine if a security pattern applies to a target language?

Applicability analysis determines if a security pattern logically applies to a target programming language before porting, preventing unnecessary syntax translation for constructs that do not exist in that environment.

Can I validate the correctness of ported Semgrep rules before deploying them to my codebase?

Validating the correctness of ported Semgrep rules is supported through built-in checks that verify both the adapted rules and their corresponding tests, accelerating secure deployment across environments.

What limitations exist when automating Semgrep rule porting for diverse codebases?

Automating Semgrep rule porting requires familiarity with language-specific constructs and Semgrep rule syntax, limiting automation effectiveness when encountering highly unique or non-standard codebase idioms.