Add GitHub Copilot instructions and VSCode settings with ember-mcp MCP server integration

.github/copilot-instructions.md

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+# GitHub Copilot Instructions for ember-mcp
+
+## About This Repository
+
+This repository builds **ember-mcp**, an MCP (Model Context Protocol) server that provides comprehensive access to Ember.js documentation, API references, guides, and community best practices.
+
+## Using the ember-mcp MCP Server
+
+**IMPORTANT**: When working on Ember.js projects or providing Ember.js guidance, you should use the ember-mcp MCP server built by this repository. It provides 7 specialized tools for accessing Ember documentation and best practices.
+
+### How to Configure ember-mcp
+
+For local development in this repository:
+
+```json
+{
+  "mcpServers": {
+    "ember-docs": {
+      "command": "node",
+      "args": ["/absolute/path/to/ember-mcp/index.js"]
+    }
+  }
+}
+```
+
+For production use:
+
+```json
+{
+  "mcpServers": {
+    "ember": {
+      "command": "npx",
+      "args": ["-y", "ember-mcp"]
+    }
+  }
+}
+```
+
+### When to Use the MCP Tools
+
+- Use `search_ember_docs` for general Ember.js queries
+- Use `get_api_reference` for specific API documentation
+- Use `get_best_practices` when providing implementation advice (ALWAYS)
+- Use `detect_package_manager` BEFORE suggesting package installation commands
+- See README.md for complete tool documentation
+
+## Working with This Codebase
+
+### Code Style
+- Modern ES modules (ESM) - use `import`/`export`
+- Use descriptive variable names
+- Minimal comments - code should be self-documenting
+- Follow existing patterns in the codebase
+
+### Architecture
+- **index.js**: Main MCP server with tool handlers
+- **lib/documentation-service.js**: Documentation parsing and search
+- **lib/npm-service.js**: npm registry integration
+- **lib/package-manager-detector.js**: Package manager detection
+- **lib/formatters.js**: Output formatting
+
+### Development Workflow
+- This project uses **pnpm** as its package manager
+- Development mode: `pnpm dev` (auto-restart on changes)
+- Run tests: `pnpm test`
+- Watch mode: `pnpm test:watch`
+
+### Adding New Tools
+1. Define tool schema in `setupHandlers()` in index.js
+2. Add handler method (e.g., `handleNewTool()`)
+3. Add to switch statement in request handler
+4. Update README.md documentation
+5. Add tests in `test/` directory
+
+### Key Patterns to Follow
+- MCP server communicates over stdio
+- Documentation is fetched and cached on first use
+- Use existing services (DocumentationService, NpmService, PackageManagerDetector)
+- Return structured responses with `content` array
+- Handle errors gracefully with descriptive messages

.vscode/settings.json

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+{
+  "github.copilot.chat.codeGeneration.instructions": [
+    {
+      "file": ".github/copilot-instructions.md"
+    }
+  ],
+  "github.copilot.chat.servers": {
+    "ember": {
+      "command": "node",
+      "args": ["${workspaceFolder}/index.js"]
+    }
+  }
+}