Genkit MCP

📋 Overview:

This report summarizes the content of a GitHub webpage for the "genkitx-mcp" plugin, an experimental feature for the Genkit framework. The plugin facilitates integration with the Model Context Protocol (MCP), allowing Genkit applications to consume and provide tools, prompts, and resources via the MCP.

⭐ Key Points:
* The genkitx-mcp plugin is marked as experimental.
* It enables Genkit to interact with MCP servers as a client and expose Genkit instances as MCP servers.
* Installation requires the genkit and genkitx-mcp npm packages.
* MCP clients can be created using the `mcpClient` function, which registers discovered tools and prompts with Genkit.
* MCP servers can be created using the `mcpServer` function to expose Genkit tools and prompts.

* There are limitations, as MCP prompts only support string parameters, and only user and model messages.

🔍 Main Findings:
* The plugin allows seamless integration of Genkit with the Model Context Protocol.
* It supports both consuming MCP tools and exposing Genkit instances as MCP servers.

* MCP tool responses are handled to be compatible with Genkit's format.

📊 Details:
* Installation: `npm i genkit genkitx-mcp`
* MCP Client Creation: Uses the `mcpClient` function with options for server process, server URL, or transport.
* `name` (required): The name for the MCP client.
* `version` (optional): The client version number, defaulting to "1.0.0".
* `serverProcess`: Parameters for launching a local server process using the stdio MCP transport. Includes command, arguments, and env.
* `serverUrl`: The URL of a remote server for SSE MCP transport.
* `transport`: An existing MCP transport object.
* `rawToolResponses`: Whether to return the raw MCP tool response.
* MCP Server Creation: Uses the `mcpServer` function, exposing Genkit tools and prompts via the specified transport.
* Tool Response Handling: MCP responses are parsed as valid JSON, plain text if not valid, single non-text part or the full response for other conditions.

* Testing: The server can be tested using the official MCP inspector.

🎯 Conclusion:
The genkitx-mcp plugin provides a mechanism for Genkit to interact with the Model Context Protocol, both as a client and a server, expanding Genkit's capabilities with external tools, prompts and resources and vice versa.