Skip to content

Missing Tool Implementation: closeAllDiffTabs in MCP Protocol #1679

@humanwritten

Description

@humanwritten

Bug Description

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 -32602: MCP error -32602: Tool closeAllDiffTabs not found
at Mc1._onresponse (file:///Users/timapple/.nvm/versions/node/v23.9.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:1358:20090)

Environment Info

  • Platform: macos
  • Terminal: cursor
  • Version: 1.0.15
  • Feedback ID: cc32c364-b1d2-4df6-b0ab-2c0a034e3337

Errors

[{"error":"Error: Command failed: security find-generic-password -a $USER -w -s \"Claude Code\"\nsecurity: SecKeychainSearchCopyNext: The specified item could not be found in the keychain.\n\n    at genericNodeError (node:internal/errors:983:15)\n    at wrappedFn (node:internal/errors:537:14)\n    at checkExecSyncError (node:child_process:882:11)\n    at execSync (node:child_process:954:15)\n    at WZ (file:///Users/timapple/.nvm/versions/node/v23.9.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:654:3921)\n    at file:///Users/timapple/.nvm/versions/node/v23.9.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:582:11799\n    at Q (file:///Users/timapple/.nvm/versions/node/v23.9.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:526:17069)\n    at QV (file:///Users/timapple/.nvm/versions/node/v23.9.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:582:10945)\n    at VG (file:///Users/timapple/.nvm/versions/node/v23.9.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:582:10391)\n    at dO2 (file:///Users/timapple/.nvm/versions/node/v23.9.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:2049:4758)","timestamp":"2025-06-05T22:49:13.302Z"}]

Metadata

Metadata

Labels

Type

No type
No fields configured for issues without a type.

Projects

No projects

Milestone

No milestone

Relationships

None yet

Development

No branches or pull requests

Issue actions