feat(cli): support http and sse MCP servers in zedIntegration

[SteffenDE]

Summary

Adds support for using the ACP "Zed Integration" with SSE and HTTP based MCP servers. See https://agentclientprotocol.com/protocol/session-setup#mcp-servers.

Details

I updated the ACP schema file using the latest one from the ACP TypeScript SDK: https://github.com/agentclientprotocol/typescript-sdk/blob/main/src/schema.ts

How to Validate

Since Zed doesn't support non-stdio MCPs, I tested this using tidewave.ai's upcoming ACP integration. You could also manually send JSON-RPC messages over stdio to verify, but without #10089, testing in the terminal doesn't really work.

Pre-Merge Checklist

• Updated relevant documentation and README (if needed)
• Added/updated tests (if needed)
• Noted breaking changes (if any)
• Validated on required platforms/methods:
  • MacOS
    • npm run
    • npx
    • Docker
    • Podman
    • Seatbelt
  • Windows
    • npm run
    • npx
    • Docker
  • Linux
    • npm run
    • npx
    • Docker

[gemini-code-assist]

Summary of Changes

Hello @SteffenDE, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request significantly enhances the zedIntegration component by introducing support for HTTP and Server-Sent Events (SSE) based MCP servers. This change broadens the range of compatible MCP server implementations that can be used with the ACP "Zed Integration", moving beyond the previously supported stdio-only approach. The update involves modifying the agent's declared capabilities and refining the configuration processing to correctly handle these new server types.

Highlights

• MCP Server Support: The zedIntegration now supports HTTP and Server-Sent Events (SSE) based MCP servers, expanding its compatibility beyond stdio-based servers.
• Agent Capabilities Declaration: The GeminiAgent class explicitly declares its mcpCapabilities to include http and sse.
• Configuration Handling: The logic for merging MCP server configurations has been updated to correctly parse and instantiate MCPServerConfig for sse and http server types, including their respective URLs and headers.
• ACP Schema Update: The type definition for the update parameter in the Session class's sendUpdate method has been updated to align with the latest ACP schema, changing from acp.SessionUpdate to acp.SessionNotification['update'].

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[gemini-code-assist]

Code Review

This pull request adds support for HTTP and SSE based MCP servers in the Zed integration. The changes correctly advertise the new capabilities and handle the different server configuration types during session setup. The logic is sound, but there's an opportunity to refactor duplicated code in the server configuration handling to improve maintainability and reduce redundancy.

[michalslaski]

Thank you @SteffenDE for this contribution. Merge conflicts appeared since you opened the PR. Can you please resolve them?

Also, is there a way to directly import types from @agentclientprotocol/sdk instead of copying over the code?

[SteffenDE]

@michalslaski there is, I opened #13856 to use the official SDK.