Individual skill
smart-mutation-operator-generator
Analyzes a repository and its test suite to generate customized mutation operators tailored to the project. Use this skill when setting up mutation testing, improving test quality, or generating project-specific mutants. Considers language constructs, business logic patterns, API calls, data types, and code complexity to produce effective mutation operators that maximize test sensitivity while avoiding trivial or equivalent mutations. Generates prioritized operator sets (high/medium/low value) with impact summaries. Triggers when users ask to generate mutation operators, customize mutation testing, analyze code for mutation opportunities, or create project-specific mutants.
skills/smart-mutation-operator-generator/SKILL.md
Source commit 4f38503747e0617504bce5329283ef837d375c09
What was checked
- Matches the observed repository HEAD
- Yes
- Scanner rules are current
- Yes
- Repository scan complete
- No
- Skill scan complete
- No
- Observed behavior
- Local scripts
- Last checked
- Nov 11, 2026
These are observations at the recorded commit, not a guarantee of safety. Review the source before running it.
Install this skill
Choose an agent in your Stack or copy a command below. Commands fetch the pinned commit and copy only this skill directory. Existing destinations are refused. Copying a command does not install anything.
An install command is unavailable: current rules, complete repository and skill scans, an eligible behavior level and a permitted license are required.
Repository context
- Repository stars (not skill ratings)
- 260
- Repository last updated
- Aug 21, 2026
- License
- Apache-2.0
Observed agent integration: No specific integration evidence. Standard SKILL.md installation does not imply verified compatibility.
- claude-skills Repository topic
- metaprogramming Repository topic
- software-development Repository topic
- software-engineering Repository topic
- claude Repository topic
- claude-code Repository topic
- testing Derived category
- data Derived category
Files and excerpt
File metadata and permitted, redacted excerpts come from the recorded scan. Source links are pinned to that commit.
Browse files
SKILL.mdcore · 6,636 bytesSKILL.mdcore · 6,636 bytesSKILL.mdcore · 6,636 bytesSKILL.mdcore · 6,636 bytesSKILL.mdcore · 6,636 bytesSKILL.mdcore · 6,636 bytesSKILL.mdcore · 6,636 bytesSKILL.mdcore · 6,636 bytesSKILL.mdcore · 6,636 bytesreferences/standard_operators.mddoc · 7,092 bytesscripts/generate_operators.pyruns · 10,558 bytes
Read excerpt
# Smart Mutation Operator Generator
Generate customized mutation operators tailored to a specific codebase to maximize mutation testing effectiveness.
## Workflow
### 1. Analyze Codebase
**Run analysis script**:
```bash
# Analyze entire repository
python scripts/generate_operators.py /path/to/repo
# Analyze single file