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version: "1.0.1" name: mcp-create-declarative-agent description: 'Skill converted from mcp-create-declarative-agent.prompt.md'

`prompt

---
mode: 'agent'
tools: ['changes', 'search/codebase', 'edit/editFiles', 'problems']
description: 'Create a declarative agent for Microsoft 365 Copilot by integrating an MCP server with authentication, tool selection, and configuration'
model: 'gpt-4.1'
tags: [mcp, m365-copilot, declarative-agent, model-context-protocol, api-plugin]
---
 
# Create MCP-based Declarative Agent for Microsoft 365 Copilot
 
Create a complete declarative agent for Microsoft 365 Copilot that integrates with a Model Context Protocol (MCP) server to access external systems and data.
 
## Requirements
 
Generate the following project structure using Microsoft 365 Agents Toolkit:
 
### Project Setup
1. **Scaffold declarative agent** via Agents Toolkit
2. **Add MCP action** pointing to MCP server
3. **Select tools** to import from MCP server
4. **Configure authentication** (OAuth 2.0 or SSO)
5. **Review generated files** (manifest.json, ai-plugin.json, declarativeAgent.json)
 
### Key Files Generated
 
**appPackage/manifest.json** - Teams app manifest with plugin reference:

{ "$schema": "https://developer.microsoft.com/json-schemas/teams/vDevPreview/MicrosoftTeams.schema.json", "manifestVersion": "devPreview", "version": "1.0.0", "id": "...", "developer": { "name": "...", "websiteUrl": "...", "privacyUrl": "...", "termsOfUseUrl": "..." }, "name": { "short": "Agent Name", "full": "Full Agent Name" }, "description": { "short": "Short description", "full": "Full description" }, "copilotAgents": { "declarativeAgents": [ { "id": "declarativeAgent", "file": "declarativeAgent.json" } ] } }

 
**appPackage/declarativeAgent.json** - Agent definition:

{ "$schema": "https://aka.ms/json-schemas/copilot/declarative-agent/v1.0/schema.json", "version": "v1.0", "name": "Agent Name", "description": "Agent description", "instructions": "You are an assistant that helps with [specific domain]. Use the available tools to [capabilities].", "capabilities": [ { "name": "WebSearch", "websites": [ { "url": "https://learn.microsoft.com" } ] }, { "name": "MCP", "file": "ai-plugin.json" } ] }

 
**appPackage/ai-plugin.json** - MCP plugin manifest:

{ "schema_version": "v2.1", "name_for_human": "Service Name", "description_for_human": "Description for users", "description_for_model": "Description for AI model", "contact_email": "support@company.com", "namespace": "serviceName", "capabilities": { "conversation_starters": [ { "text": "Example query 1" } ] }, "functions": [ { "name": "functionName", "description": "Function description", "capabilities": { "response_semantics": { "data_path": "$", "properties": { "title": "$.title", "subtitle": "$.description" } } } } ], "runtimes": [ { "type": "MCP", "spec": { "url": "https://api.service.com/mcp/" }, "run_for_functions": ["functionName"], "auth": { "type": "OAuthPluginVault", "reference_id": "${{OAUTH_REFERENCE_ID}}" } } ] }

 
**/.vscode/mcp.json** - MCP server configuration:

{ "serverUrl": "https://api.service.com/mcp/", "pluginFilePath": "appPackage/ai-plugin.json" }

 
## MCP Server Integration
 
### Supported MCP Endpoints
The MCP server must provide:
- **Server metadata** endpoint
- **Tools listing** endpoint (exposes available functions)
- **Tool execution** endpoint (handles function calls)
 
### Tool Selection
When importing from MCP:
1. Fetch available tools from server
2. Select specific tools to include (for security/simplicity)
3. Tool definitions are auto-generated in ai-plugin.json
 
### Authentication Types
 
**OAuth 2.0 (Static Registration)**

"auth": { "type": "OAuthPluginVault", "reference_id": "${{OAUTH_REFERENCE_ID}}", "authorization_url": "https://auth.service.com/authorize", "client_id": "${{CLIENT_ID}}", "client_secret": "${{CLIENT_SECRET}}", "scope": "read write" }

 
**Single Sign-On (SSO)**

"auth": { "type": "SSO" }

 
## Response Semantics
 
### Define Data Mapping
Use `response_semantics` to extract relevant fields from API responses:

"capabilities": { "response_semantics": { "data_path": "$.results", "properties": { "title": "$.name", "subtitle": "$.description", "url": "$.link" } } }

 
### Add Adaptive Cards (Optional)
See the `mcp-create-adaptive-cards` prompt for adding visual card templates.
 
## Environment Configuration
 
Create `.env.local` or `.env.dev` for credentials:

OAUTH_REFERENCE_ID=your-oauth-reference-id CLIENT_ID=your-client-id CLIENT_SECRET=your-client-secret

 
## Testing & Deployment
 
### Local Testing
1. **Provision** agent in Agents Toolkit
2. **Start debugging** to sideload in Teams
3. Test in Microsoft 365 Copilot at https://m365.cloud.microsoft/chat
4. Authenticate when prompted
5. Query the agent using natural language
 
### Validation
- Verify tool imports in ai-plugin.json
- Check authentication configuration
- Test each exposed function
- Validate response data mapping
 
## Best Practices
 
### Tool Design
- **Focused functions**: Each tool should do one thing well
- **Clear descriptions**: Help the model understand when to use each tool
- **Minimal scoping**: Only import tools the agent needs
- **Descriptive names**: Use action-oriented function names
 
### Security
- **Use OAuth 2.0** for production scenarios
- **Store secrets** in environment variables
- **Validate inputs** on the MCP server side
- **Limit scopes** to minimum required permissions
- **Use reference IDs** for OAuth registration
 
### Instructions
- **Be specific** about the agent's purpose and capabilities
- **Define behavior** for both successful and error scenarios
- **Reference tools** explicitly in instructions when applicable
- **Set expectations** for users about what the agent can/cannot do
 
### Performance
- **Cache responses** when appropriate on MCP server
- **Batch operations** where possible
- **Set timeouts** for long-running operations
- **Paginate results** for large datasets
 
## Common MCP Server Examples
 
### GitHub MCP Server

URL: https://api.githubcopilot.com/mcp/ Tools: search_repositories, search_users, get_repository Auth: OAuth 2.0

 
### Jira MCP Server

URL: https://your-domain.atlassian.net/mcp/ Tools: search_issues, create_issue, update_issue Auth: OAuth 2.0

 
### Custom Service

URL: https://api.your-service.com/mcp/ Tools: Custom tools exposed by your service Auth: OAuth 2.0 or SSO

 
## Workflow
 
Ask the user:
1. What MCP server are you integrating with (URL)?
2. What tools should be exposed to Copilot?
3. What authentication method does the server support?
4. What should the agent's primary purpose be?
5. Do you need response semantics or Adaptive Cards?
 
Then generate:
- Complete appPackage/ structure (manifest.json, declarativeAgent.json, ai-plugin.json)
- mcp.json configuration
- .env.local template
- Provisioning and testing instructions
 
## Troubleshooting
 
### MCP Server Not Responding
- Verify server URL is correct
- Check network connectivity
- Validate MCP server implements required endpoints
 
### Authentication Fails
- Verify OAuth credentials are correct
- Check reference ID matches registration
- Confirm scopes are requested properly
- Test OAuth flow independently
 
### Tools Not Appearing
- Ensure mcp.json points to correct server
- Verify tools were selected during import
- Check ai-plugin.json has correct function definitions
- Re-fetch actions from MCP if server changed
 
### Agent Not Understanding Queries
- Review instructions in declarativeAgent.json
- Check function descriptions are clear
- Verify response_semantics extract correct data
- Test with more specific queries

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