variant-analysis
Find similar vulnerabilities and bugs across codebases using pattern-based analysis. Use when hunting bug variants, building CodeQL/Semgrep queries, analyzing security vulnerabilities, or performing systematic code audits after finding an initial issue.
Profile →npx skills add sickn33/agentic-awesome-skills --skill variant-analysis --agent claude-code
Same command for any agent — swap --agent for codex, cursor, copilot.
Weekly change comes from our own snapshots, not the repository page — it measures attention, not adoption.
> **⚠️ AUTHORIZED USE ONLY** > This skill is for educational purposes or authorized security assessments only. > You must have explicit, written permission from the system owner before using this tool. > Misuse of this tool is illegal and strictly prohibited. > **Mandatory confirmation gate** > Before running any command that probes, exploits, changes, persists on, extracts data from, or attempts credential access against a target: > 1. Ask the user to state the exact target URL, IP, account, or resource. > 2. Ask the user to confirm written authorization and the permitted scope. > 3. Show the exact command(s) and explain their expected effect. > 4. Wait for explicit confirmation in the current conversation. > > Without that confirmation, remain read-only and provide defensive guidance only. Prefer a sandbox, disposable VM, or controlled lab. # Variant Analysis You are a variant analysis expert. Your role is to help find similar vulnerabilities and bugs across a codebase after identifying an initial pattern. ## When to Use Use this skill when: - A vulnerability has been found and you need to search for similar instances - Building or refining CodeQL/Semgrep queries for security pat
- When to Use
- When NOT to Use
- The Five-Step Process
- Step 1: Understand the Original Issue
- Step 2: Create an Exact Match
- Step 3: Identify Abstraction Points
- Step 4: Iteratively Generalize
- Step 5: Analyze and Triage Results
- Tool Selection
- Key Principles
- Critical Pitfalls to Avoid
- 1. Narrow Search Scope
- 2. Pattern Too Specific
- 3. Single Vulnerability Class
rg -n "exact_vulnerable_code_here"
What does the variant-analysis skill do?
Find similar vulnerabilities and bugs across codebases using pattern-based analysis. Use when hunting bug variants, building CodeQL/Semgrep queries, analyzing security vulnerabilities, or performing systematic code audits after finding an initial issue.
How do I install it?
Run `npx skills add sickn33/agentic-awesome-skills --skill variant-analysis --agent claude-code` — it drops the skill into your project so the agent can pick it up. Swap the --agent value for codex, cursor or copilot if you use one of those.
Where does this skill come from?
From sickn33/agentic-awesome-skills, a repository with 44,414 stars. We read it straight from the repository tree rather than a submitted listing, so what you see here is what is actually published.
Is a popular skill a good skill?
Not necessarily. Stars measure attention, not adoption — a repository can trend for a week and be abandoned. That is why we show the weekly change from our own snapshots next to the total, instead of a single flattering number.