fix(mcp): Adjust for no tools_update notification on claude/codex #21820
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@Mergifyio backport release/stable/6.4 |
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✅ Backports have been createdDetails
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agneszitte
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Nov 12, 2025
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Pull Request Overview
This PR fixes MCP (Model Context Protocol) integration issues for Claude Code and Codex CLI platforms that don't support the tools_update notification. It introduces a new --mcp-wait-tools-list flag to wait for upstream server tools before responding to tool list requests, and updates documentation across multiple platforms to use the correct dotnet dnx command syntax.
Key Changes
- Added
--mcp-wait-tools-listflag and logic to wait for upstream tools when Claude Code or Codex clients are detected - Updated CLI documentation (Claude, Codex, GitHub Copilot CLI) to use
dotnet dnxinstead ofdnx - Improved help text formatting alignment in Program.cs
Reviewed Changes
Copilot reviewed 6 out of 6 changed files in this pull request and generated 2 comments.
Show a summary per file
| File | Description |
|---|---|
| src/Uno.UI.DevServer.Cli/Program.cs | Added new --mcp-wait-tools-list option to help text and improved alignment |
| src/Uno.UI.DevServer.Cli/Mcp/McpProxy.cs | Added logic to detect Claude Code/Codex clients and wait for tools before responding to list_tools requests |
| src/Uno.UI.DevServer.Cli/CliManager.cs | Added parsing for --mcp-wait-tools-list flag and passes it to McpProxy |
| doc/articles/get-started-ai-gh-copilot-cli.md | Fixed command from dnx to dotnet dnx |
| doc/articles/get-started-ai-codex.md | Fixed command from dnx to dotnet dnx |
| doc/articles/get-started-ai-claude.md | Fixed command from dnx to dotnet dnx |
Contributor
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🤖 Your Docs stage site is ready! Visit it here: https://unodocsprstaging.z13.web.core.windows.net/pr-21820/docs/index.html |
Contributor
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🤖 Your WebAssembly Skia Sample App stage site is ready! Visit it here: https://unowasmprstaging.z20.web.core.windows.net/pr-21820/wasm-skia-net9/index.html |
agneszitte
approved these changes
Nov 12, 2025
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The build 182556 found UI Test snapshots differences: Details
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🤖 Your Docs stage site is ready! Visit it here: https://unodocsprstaging.z13.web.core.windows.net/pr-21820/docs/index.html |
Contributor
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🤖 Your WebAssembly Skia Sample App stage site is ready! Visit it here: https://unowasmprstaging.z20.web.core.windows.net/pr-21820/wasm-skia-net9/index.html |
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Contributor
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The build 182582 found UI Test snapshots differences: Details
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agneszitte
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Nov 13, 2025
agneszitte
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Nov 13, 2025
…6.4/pr-21820 fix(mcp): Adjust for no tools_update notification on claude/codex (backport #21820)
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PR Type:
What is the new behavior? 🚀
Fixes invalid tools listing and CLIs for more platforms in docs for claude and codex
PR Checklist ✅
Please check if your PR fulfills the following requirements:
Screenshots Compare Test Runresults.Other information ℹ️