Add plugin

plugins/polyglot-test-agent/.github/plugin/plugin.json

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+{
+  "name": "polyglot-test-agent",
+  "description": "Multi-agent pipeline for generating comprehensive unit tests across any programming language. Orchestrates research, planning, and implementation phases using specialized agents to produce tests that compile, pass, and follow project conventions.",
+  "version": "1.0.0",
+  "author": {
+    "name": "Awesome Copilot Community"
+  },
+  "repository": "https://github.com/github/awesome-copilot",
+  "license": "MIT",
+  "tags": [
+    "testing",
+    "unit-tests",
+    "polyglot",
+    "test-generation",
+    "multi-agent",
+    "tdd",
+    "csharp",
+    "typescript",
+    "python",
+    "go"
+  ],
+  "display": {
+    "ordering": "alpha",
+    "show_badge": true
+  },
+  "items": [
+    {
+      "path": "agents/polyglot-test-generator.agent.md",
+      "kind": "agent"
+    },
+    {
+      "path": "agents/polyglot-test-researcher.agent.md",
+      "kind": "agent"
+    },
+    {
+      "path": "agents/polyglot-test-planner.agent.md",
+      "kind": "agent"
+    },
+    {
+      "path": "agents/polyglot-test-implementer.agent.md",
+      "kind": "agent"
+    },
+    {
+      "path": "agents/polyglot-test-builder.agent.md",
+      "kind": "agent"
+    },
+    {
+      "path": "agents/polyglot-test-tester.agent.md",
+      "kind": "agent"
+    },
+    {
+      "path": "agents/polyglot-test-fixer.agent.md",
+      "kind": "agent"
+    },
+    {
+      "path": "agents/polyglot-test-linter.agent.md",
+      "kind": "agent"
+    },
+    {
+      "path": "skills/polyglot-test-agent/unit-test-generation.prompt.md",
+      "kind": "prompt"
+    },
+    {
+      "path": "skills/polyglot-test-agent/SKILL.md",
+      "kind": "skill"
+    }
+  ]
+}

plugins/polyglot-test-agent/README.md

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+# Polyglot Test Agent Plugin
+
+Multi-agent pipeline for generating comprehensive unit tests across any programming language. Orchestrates research, planning, and implementation phases using specialized agents to produce tests that compile, pass, and follow project conventions.
+
+## Installation
+
+```bash
+# Using Copilot CLI
+copilot plugin install polyglot-test-agent@awesome-copilot
+```
+
+## What's Included
+
+### Agents
+
+| Agent | Description |
+|-------|-------------|
+| `polyglot-test-generator` | Orchestrates comprehensive test generation using Research-Plan-Implement pipeline. Use when asked to generate tests, write unit tests, improve test coverage, or add tests. |
+| `polyglot-test-researcher` | Analyzes codebases to understand structure, testing patterns, and testability. Identifies source files, existing tests, build commands, and testing framework. |
+| `polyglot-test-planner` | Creates structured test implementation plans from research findings. Organizes tests into phases by priority and complexity. |
+| `polyglot-test-implementer` | Implements a single phase from the test plan. Writes test files and verifies they compile and pass. |
+| `polyglot-test-builder` | Runs build/compile commands for any language and reports results. |
+| `polyglot-test-tester` | Runs test commands for any language and reports results. |
+| `polyglot-test-fixer` | Fixes compilation errors in source or test files. |
+| `polyglot-test-linter` | Runs code formatting/linting for any language. |
+
+### Commands (Slash Commands)
+
+| Command | Description |
+|---------|-------------|
+| `/polyglot-test-agent:unit-test-generation` | Best practices and guidelines for generating comprehensive, parameterized unit tests with 80% code coverage across any programming language |
+
+### Skills
+
+| Skill | Description |
+|-------|-------------|
+| `polyglot-test-agent` | Generates comprehensive, workable unit tests for any programming language using a multi-agent pipeline. Supports C#, TypeScript, JavaScript, Python, Go, Rust, Java, and more. |
+
+## Supported Languages
+
+- C# / .NET (MSTest, xUnit, NUnit)
+- TypeScript / JavaScript (Jest, Vitest, Mocha)
+- Python (pytest, unittest)
+- Go (testing)
+- Rust (cargo test)
+- Java (JUnit, Maven, Gradle)
+
+## How It Works
+
+The plugin coordinates specialized agents in a **Research → Plan → Implement** pipeline:
+
+1. **Research** — Analyzes the codebase to detect language, framework, testing patterns, and build commands
+2. **Plan** — Creates a phased implementation plan organized by priority and complexity
+3. **Implement** — Writes test files phase by phase, verifying compilation and test passage at each step
+
+## Source
+
+This plugin is part of [Awesome Copilot](https://github.com/github/awesome-copilot), a community-driven collection of GitHub Copilot extensions.
+
+## License
+
+MIT

plugins/polyglot-test-agent/agents/polyglot-test-builder.md

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+../../../agents/polyglot-test-builder.agent.md

plugins/polyglot-test-agent/agents/polyglot-test-fixer.md

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+../../../agents/polyglot-test-fixer.agent.md

plugins/polyglot-test-agent/agents/polyglot-test-generator.md

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+../../../agents/polyglot-test-generator.agent.md

plugins/polyglot-test-agent/agents/polyglot-test-implementer.md

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+../../../agents/polyglot-test-implementer.agent.md

plugins/polyglot-test-agent/agents/polyglot-test-linter.md

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+../../../agents/polyglot-test-linter.agent.md

plugins/polyglot-test-agent/agents/polyglot-test-planner.md

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+../../../agents/polyglot-test-planner.agent.md

plugins/polyglot-test-agent/agents/polyglot-test-researcher.md

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+../../../agents/polyglot-test-researcher.agent.md

plugins/polyglot-test-agent/agents/polyglot-test-tester.md

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+../../../agents/polyglot-test-tester.agent.md

plugins/polyglot-test-agent/commands/unit-test-generation.md

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+../../../skills/polyglot-test-agent/unit-test-generation.prompt.md

plugins/polyglot-test-agent/skills/polyglot-test-agent

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+../../../skills/polyglot-test-agent