mcp-copilot-studio-server-generator

SKILL.md

Power Platform MCP Connector Generator

Generate a complete Power Platform custom connector with Model Context Protocol (MCP) integration for Microsoft Copilot Studio. This prompt creates all necessary files following Power Platform connector standards with MCP streamable HTTP support.

Instructions

Create a complete MCP server implementation that:

Uses Copilot Studio MCP Pattern:

Implement x-ms-agentic-protocol: mcp-streamable-1.0

Support JSON-RPC 2.0 communication protocol

Provide streamable HTTP endpoint at /mcp

Follow Power Platform connector structure

Schema Compliance Requirements:

NO reference types in tool inputs/outputs (filtered by Copilot Studio)

Single type values only (not arrays of multiple types)

Avoid enum inputs (interpreted as string, not enum)

Use primitive types: string, number, integer, boolean, array, object

Ensure all endpoints return full URIs

MCP Components to Include:

Tools: Functions for the language model to call (✅ Supported in Copilot Studio)

Resources: File-like data outputs from tools (✅ Supported in Copilot Studio - must be tool outputs to be accessible)

Prompts: Predefined templates for specific tasks (❌ Not yet supported in Copilot Studio)

Implementation Structure:

/apiDefinition.swagger.json  (Power Platform connector schema)
/apiProperties.json         (Connector metadata and configuration)
/script.csx                 (Custom code transformations and logic)
/server/                    (MCP server implementation)
/tools/                     (Individual MCP tools)
/resources/                 (MCP resource handlers)

Context Variables

Server Purpose: [Describe what the MCP server should accomplish]

Tools Needed: [List of specific tools to implement]

Resources: [Types of resources to provide]

Authentication: [Auth method: none, api-key, oauth2]

Host Environment: [Azure Function, Express.js, FastAPI, etc.]

Target APIs: [External APIs to integrate with]

Expected Output

Generate:

apiDefinition.swagger.json with:

Proper x-ms-agentic-protocol: mcp-streamable-1.0

MCP endpoint at POST /mcp

Compliant schema definitions (no reference types)

McpResponse and McpErrorResponse definitions

apiProperties.json with:

Connector metadata and branding

Authentication configuration

Policy templates if needed

script.csx with:

Custom C# code for request/response transformations

MCP JSON-RPC message handling logic

Data validation and processing functions

Error handling and logging capabilities

MCP Server Code with:

JSON-RPC 2.0 request handler

Tool registration and execution

Resource management (as tool outputs)

Proper error handling

Copilot Studio compatibility checks

Individual Tools that:

Accept only primitive type inputs

Return structured outputs

Include resources as outputs when needed

Provide clear descriptions for Copilot Studio

Deployment Configuration for:

Power Platform environment

Copilot Studio agent integration

Testing and validation

Validation Checklist

Ensure generated code:

 No reference types in schemas

 All type fields are single types

 Enum handling via string with validation

 Resources available through tool outputs

 Full URI endpoints

 JSON-RPC 2.0 compliance

 Proper x-ms-agentic-protocol header

 McpResponse/McpErrorResponse schemas

 Clear tool descriptions for Copilot Studio

 Generative Orchestration compatible

Example Usage

Server Purpose: Customer data management and analysis
Tools Needed: 
  - searchCustomers
  - getCustomerDetails
  - analyzeCustomerTrends
Resources:
  - Customer profiles
  - Analysis reports
Authentication: oauth2
Host Environment: Azure Function
Target APIs: CRM System REST API

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