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variant-analysis

v2.0.3

Find similar vulnerabilities and bugs across codebases using pattern-based analysis

Claude Code1 Skill

By Axel Mierczuk7.1k GitHub starsUpdated last week

Directory evidence

Runtimes
Claude Code
Parsed components
1 skill or MCP entry
Source updated
Sep 16, 2026
Manifest status
Canonical path parsed

The directory validates manifest shape and source location. It does not execute the plugin or provide a security endorsement. Review the indexing methodology →

Install variant-analysis for Claude Code

Installs for the current user
claude plugin marketplace add IchenDEV/agent-plugin-mkt
claude plugin marketplace update agent-plugin-marketplace
claude plugin install variant-analysis@agent-plugin-marketplace

Paste and run these commands in a terminal with Claude Code. They add and refresh the PluginsMP catalog, then install this plugin.

The installer fetches third-party code from the source repository shown on this page. This directory validates manifest structure and source location, but does not perform a security audit; review the manifest, components, and source before installing.

Get the source manually
git clone https://github.com/trailofbits/skills

Clone the source repository, then follow its setup instructions to add the plugin to a compatible client. The plugin root is plugins/variant-analysis/.

Plugin files

plugins/variant-analysis/
├── .claude-plugin/plugin.json
└── skills/variant-analysis/SKILL.md

Included Skills1

variant-analysisskills/variant-analysis/SKILL.md

Hunts for the other instances of a bug already found — the variants of one root cause across a codebase. Use immediately after a vulnerability, logic bug, or bad pattern turns up in a specific file and the question becomes where else it occurs, including the bare conversational form ("are there others like this?", "is this the same bug?"). Also for generalizing one known instance into a CodeQL or Semgrep query for its whole pattern family, and for triaging a set of look-alike candidates against a known root cause. Not for initial discovery with no bug in hand.

Plugin manifests1

plugins/variant-analysis/.claude-plugin/plugin.json
{
  "name": "variant-analysis",
  "version": "2.0.3",
  "description": "Find similar vulnerabilities and bugs across codebases using pattern-based analysis",
  "author": {
    "name": "Axel Mierczuk"
  },
  "interface": {
    "displayName": "Variant Analysis",
    "shortDescription": "Find similar vulnerabilities and bugs across codebases using pattern-based analysis",
    "longDescription": "Find similar vulnerabilities and bugs across codebases using pattern-based analysis",
    "developerName": "Axel Mierczuk"
  }
}

For maintainers

If you maintain this plugin, link to this source-backed listing from your README so users can review its manifest and indexed components.

[variant-analysis on Agent Plugins Marketplace](https://pluginsmp.com/plugins/variant-analysis)