What problem does it solve? When writing tests across multiple programming languages, agents need language-specific build commands, test frameworks, and error patterns. This Skill centralizes discovery of per-language extension guidance files so code-testing agents can locate the right reference before generating tests. ## Core Features & Use Cases - Language Extension Discovery: Returns file paths to guidance files for .NET, Python, TypeScript, PowerShell, C++, Go, Java, Rust, Ruby, Swift, and Kotlin. - Pipeline Examples: Provides end-to-end example files (research, plan, generated tests, fix cycles, final report) for .NET, Python, TypeScript, Go, and Java. - Use Case: A code-testing agent targeting a Java project calls this Skill, receives the path to extensions/java.md, reads it for Maven/Gradle commands and JUnit 5 detection rules, then generates tests aligned with the project's framework. ## Quick Start Ask the agent to get the extension guidance file for your target language, for example request the Java testing extension file before writing JUnit tests.