polyglot-test-agent_skill

Overview

This skill generates comprehensive, workable unit tests for projects in many programming languages using a coordinated multi-agent pipeline. It orchestrates research, planning, and implementation phases to produce test files that compile, run, and follow project conventions. Use it to add or improve test coverage across C#, TypeScript, JavaScript, Python, Go, Rust, Java, and more.

How this skill works

The pipeline runs Research → Plan → Implement across specialized agents: a researcher analyzes the codebase and testing framework, a planner creates phased test plans, and an implementer writes tests and verifies them. Subagents build, run, fix, and lint tests so each phase compiles and passes before moving on. State and artifacts are stored in a .testagent folder for traceability and incremental progress.

When to use it

• Generate unit tests for an entire project or specific files
• Improve or reach target test coverage (typical goal: ~80%)
• Create test files that match project conventions and frameworks
• Add tests for new features, bug fixes, or untested modules
• Convert manual test ideas into executable, passing unit tests

Best practices

• Start by specifying scope and preferred testing framework if you have one (e.g., Jest, pytest, xUnit)
• Aim for phased delivery: prioritize core modules then expand to edge and error cases
• Include happy-path, edge-case, and error-case tests for each function or module
• Provide build/test commands or CI details when the project uses custom tooling
• Review generated tests for domain-specific mocking and external dependency handling

Example use cases

• Generate Jest unit tests for a TypeScript service folder
• Add pytest cases for a Python authentication module focused on edge cases
• Create Go unit tests for a new package and ensure go test passes
• Increase coverage for a legacy Java project by generating JUnit tests incrementally
• Produce Rust tests for library functions and run cargo test to validate