Upgrade MCP SDK to v1.25.2 #27314
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Upgrade MCP SDK to v1.25.2 #27314
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This pull request requires reviews from CODEOWNERS as it changes files that match the following patterns:
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Documentation UpdatesAdded comprehensive documentation for the stateless MCP server approach introduced in cloudflare/agents#752: New Documentation
Updated Documentation
The new stateless approach is documented as "THE simplest way to get started with MCP on Cloudflare" and is ideal for servers that don't need to maintain state between requests. |
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Preview URL: https://6f3f7830.preview.developers.cloudflare.com Files with changes (up to 15) |
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| :::note[Looking for a simpler stateless option?] | ||
| If you do not need state management and want the simplest possible MCP server, see the [Build a stateless MCP server](/agents/guides/stateless-mcp-server/) guide. That approach uses the MCP SDK directly without the `McpAgent` wrapper. | ||
| ::: |
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Should we make this default?
- Add documentation for new WorkerTransport options: - onsessionclosed callback for session cleanup - eventStore for resumability support - retryInterval for polling behavior - closeSSEStream() method for triggering reconnections - Add section on using MCP SDK directly with WebStandardStreamableHTTPServerTransport - Document new mcp-server example showing zero-config MCP server setup - Update WorkerTransportOptions interface documentation Syncs documentation with PR #752 (Upgrade MCP SDK to v1.25.1) Co-Authored-By: Claude Sonnet 4.5 <[email protected]>
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Summary
Documents the upgrade of
@modelcontextprotocol/sdkfrom v1.23.0 to v1.25.2 in the Agents SDK.WebStandardStreamableHTTPServerTransportmcp-serverexample that provides the simplest way to create an MCP server on Cloudflare Workersonsessionclosedcallback for session cleanup notificationseventStorefor connection resumability support (allows clients to recover from interruptions)retryIntervalfor controlling SSE polling behaviorTest plan
Related PR: cloudflare/agents#752
🤖 Generated with Claude Code