Prototyping out some plugins

plugins/testing-automation/README.md

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+# Testing & Test Automation Plugin
+
+Comprehensive collection for writing tests, test automation, and test-driven development including unit tests, integration tests, and end-to-end testing strategies.
+
+## Installation
+
+```bash
+copilot plugin install github/awesome-copilot/plugins/testing-automation
+```
+
+## Agents
+
+| Agent | Description |
+|-------|-------------|
+| `tdd-red` | Write failing tests first (Red phase of TDD) |
+| `tdd-green` | Write minimal code to pass tests (Green phase of TDD) |
+| `tdd-refactor` | Refactor while keeping tests green (Refactor phase of TDD) |
+| `playwright-tester` | End-to-end testing with Playwright |
+
+## Commands
+
+| Command | Description |
+|---------|-------------|
+| `/testing-automation:playwright-explore-website` | Explore a website with Playwright |
+| `/testing-automation:playwright-generate-test` | Generate Playwright tests |
+| `/testing-automation:csharp-nunit` | Generate C# NUnit tests |
+| `/testing-automation:java-junit` | Generate Java JUnit tests |
+| `/testing-automation:ai-prompt-engineering-safety-review` | Review AI prompts for safety |
+
+## TDD Workflow
+
+Use the three TDD agents in sequence:
+
+1. `@tdd-red` - Write a failing test for the feature
+2. `@tdd-green` - Implement just enough code to pass
+3. `@tdd-refactor` - Clean up while tests stay green
+
+## Source
+
+Part of [Awesome Copilot](https://github.com/github/awesome-copilot).
+
+## License
+
+MIT