How do I install the 134 Java Testing Fuzzing Testing skill?

Run npx skillmds add majiayu000/134-java-testing-fuzzing-testing in your terminal (requires Node.js), paste this page's agent-chat prompt into Claude, Cursor, or any MCP-connected agent, or download the SKILL.md file and copy it into your agent's skills directory.

Is 134 Java Testing Fuzzing Testing safe to use?

This skill has not completed SkillMD's automated safety review yet. Capability flags: docs only. SkillMD never runs a skill's scripts for you; review the SKILL.md before installing.

Which AI agents work with 134 Java Testing Fuzzing Testing?

This skill is tagged as working with Claude Code, Claude.ai, OpenAI Codex. SKILL.md is an open format, so most agents that read a skills directory can load it too.

Is 134 Java Testing Fuzzing Testing free to use?

Yes. Installing skills from SkillMD is free. This skill is licensed under Apache-2.

Who published 134 Java Testing Fuzzing Testing?

majiayu000 (@majiayu000) published this skill. Their other Agent Skills are listed on their SkillMD profile.

134 Java Testing Fuzzing Testing by majiayu000

Name: 134 Java Testing Fuzzing Testing
Rating: 4.5 (4 reviews)
Author: majiayu000

134 Java Testing Fuzzing Testing

Use when you need to add or review fuzz testing for Java APIs with CATS — including contract-driven negative testing, malformed payload validation, boundary input exploration, CI integration, reproducible failures, and local execution guidance. Part of the skills-for-java project

majiayu000 62f9c1b 2 files · 3.0 KB Updated Sep 9, 2026 567 repo stars

File contents

Java fuzz testing with CATS

Design and implement contract-driven fuzz testing for Java APIs using CATS to uncover edge cases and input-validation defects early.

What is covered in this Skill?

CATS setup and baseline command usage for OpenAPI-driven fuzzing
Negative testing strategy for invalid payloads, missing fields, wrong types, and malformed values
Boundary testing for size, range, format, and enum constraints
CI integration patterns with actionable logs and reproducible failures
Local execution workflow for contributors before opening pull requests
Reporting and triage practices for fuzzing findings

Scope: Focus on HTTP API fuzzing and contract validation with CATS. Use this skill to define practical, repeatable checks in both local and CI workflows.

Constraints

Before applying any fuzz testing changes, ensure the project compiles. If compilation fails, stop immediately. After implementation, regenerate skills and run verification.

MANDATORY: Run ./mvnw compile or mvn compile before applying any change
SAFETY: If compilation fails, stop immediately and do not proceed
MANDATORY: Regenerate skills with ./mvnw clean install -pl skills-generator after editing skill XML
VERIFY: Run ./mvnw clean verify or mvn clean verify after applying improvements
BEFORE APPLYING: Read the reference for detailed examples, good/bad patterns, and constraints

When to use this skill

Add fuzz testing to a Java project
Use CATS for API negative testing
Review CI quality gates for API contract robustness
Improve boundary and malformed input test coverage

Reference

For detailed guidance, examples, and constraints, see references/134-java-testing-fuzzing-testing.md.

---name: 134-java-testing-fuzzing-testingdescription: Use when you need to add or review fuzz testing for Java APIs with CATS — including contract-driven negative testing, malformed payload validation, boundary input exploration, CI integration, reproducible failures, and local execution guidance. Part of the skills-for-java projectlicense: Apache-2.0---# Java fuzz testing with CATS Design and implement contract-driven fuzz testing for Java APIs using CATS to uncover edge cases and input-validation defects early. **What is covered in this Skill?** - CATS setup and baseline command usage for OpenAPI-driven fuzzing - Negative testing strategy for invalid payloads, missing fields, wrong types, and malformed values - Boundary testing for size, range, format, and enum constraints - CI integration patterns with actionable logs and reproducible failures - Local execution workflow for contributors before opening pull requests - Reporting and triage practices for fuzzing findings **Scope:** Focus on HTTP API fuzzing and contract validation with CATS. Use this skill to define practical, repeatable checks in both local and CI workflows. ## Constraints Before applying any fuzz testing changes, ensure the project compiles. If compilation fails, stop immediately. After implementation, regenerate skills and run verification. - **MANDATORY**: Run `./mvnw compile` or `mvn compile` before applying any change - **SAFETY**: If compilation fails, stop immediately and do not proceed - **MANDATORY**: Regenerate skills with `./mvnw clean install -pl skills-generator` after editing skill XML - **VERIFY**: Run `./mvnw clean verify` or `mvn clean verify` after applying improvements - **BEFORE APPLYING**: Read the reference for detailed examples, good/bad patterns, and constraints ## When to use this skill - Add fuzz testing to a Java project - Use CATS for API negative testing - Review CI quality gates for API contract robustness - Improve boundary and malformed input test coverage ## Reference For detailed guidance, examples, and constraints, see [references/134-java-testing-fuzzing-testing.md](references/134-java-testing-fuzzing-testing.md).

Frequently asked questions