Missing Tool Implementation: closeAllDiffTabs in MCP Protocol

I've got this as well.

I'm also getting this error. Thought it was just me and tried uninstalling/reinstalling claude code via npm, but it didn't do anything.

Same here

same here. on IntelliJ

Just started getting this error after updating (vscode and ternimal)

I'm experiencing the same thing as well. PHPStorm.

same...

reproduced on Ubuntu 24.04.2 LTS (x86)
with Claude Code v1.0.15
in Cursor v1.0.0

same. it appeared today after I updated cursor.

Just noticed this as well, using the latest version of Claude Code (1.0.15), the Claude Code [Beta] (0.1.7-beta) plugin, and WebStorm (2025.1.2), and launching CC from the IDE terminal.

This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). The promise rejected with the reason:
McpError: MCP error -32603: Tool not found: closeAllDiffTabs
    at Mc1._onresponse (file:///Users/robertkomaromi/.local/share/mise/installs/node/22.15.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:1358:20090)
    at _transport.onmessage (file:///Users/robertkomaromi/.local/share/mise/installs/node/22.15.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:1358:17296)
    at X.client.transport.onmessage (file:///Users/robertkomaromi/.local/share/mise/installs/node/22.15.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:1921:6811)

I have the same error but in an IntelliJ terminal, I do have the Claude Code plugin installed. Don't get the error in a terminal outside of the IDE.

Getting this weird double line thing with that error. It seems to be handling requests fine but its weirdly showing 2 lines after I submit a request. (VS Code Terminal with Claude Code)

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Feedback ID: 6f95994a-7bc0-4817-8f56-770a787a42f2

Also see this in status:

IDE Integration • /config
⚠ Error installing Cursor extension: 1: ENOENT
Please restart your IDE and try again.

Does restarting the IDE after hitting this help?

Does restarting the IDE after hitting this help?

Nope, unfortunately not. It appears that IDE line selection is registering as well, you just see this error after every chat submission if IDE integration is enabled.

Same here

Same here

claude update to resolve folks - sorry for the break!

claude update to resolve folks - sorry for the break!

All good now! Thanks

Now am getting: ⎿ API Error: 400 {"type":"error","error":{"type":"invalid_request_error","message":"messages.293: tool_use ids were found without tool_result blocks immediately after:
toolu_018eVdLaCNySD2J2Um6Uqyud. Each tool_use block must have a corresponding tool_result block in the next message."}}

Additionally, still seeing:

IDE Integration • /config
✔ Connected to Cursor extension
⚠ Error installing Cursor extension: 1: ENOENT
Please restart your IDE and try again.

v1.0.16 is out now and should fix both the closeAllDiffTabs and tool_result error. Please update again with claude update – sorry for the churn @illusivejosiah

v1.0.16 is out now and should fix both the closeAllDiffTabs and tool_result error. Please update again with claude update – sorry for the churn @illusivejosiah

Thank you! Will let you know if anything else pops up! Cheers

IDE Integration • /config
✔ Connected to Cursor extension
⚠ Error installing Cursor extension: 1: ENOENT
Please restart your IDE and try again.
⎿ API Error: 400 {"type":"error","error":{"type":"invalid_request_error","message":"messages.129:
tool_use ids were found without tool_result blocks immediately after:
toolu_01PTe6Cdfiqnb2D7on8uXDXU. Each tool_use block must have a corresponding tool_result block
in the next message."}}

Back again. On v1.0.17

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