GitHub App Installation Command Disappeared from Claude Code Interface

Bug Description
I used /install-github-app yesterday afternoon, but since yesterday evening the slash-command doesn't appear in claude code anymore.

Environment Info

• Platform: macos
• Terminal: vscode
• Version: 1.0.11
• Feedback ID: d98835a0-319e-404a-ba9a-410e82fb6f37

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 __node_internal_genericNodeError (node:internal/errors:932:15)\n    at checkExecSyncError (node:child_process:890:11)\n    at execSync (node:child_process:962:15)\n    at JZ (file:///Users/tijs/.nvm/versions/node/v21.0.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:683:2402)\n    at file:///Users/tijs/.nvm/versions/node/v21.0.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:582:11763\n    at Q (file:///Users/tijs/.nvm/versions/node/v21.0.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:526:17069)\n    at LU (file:///Users/tijs/.nvm/versions/node/v21.0.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:582:10909)\n    at HG (file:///Users/tijs/.nvm/versions/node/v21.0.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:582:10355)\n    at file:///Users/tijs/.nvm/versions/node/v21.0.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:2269:2177\n    at Object.dO [as useState] (file:///Users/tijs/.nvm/versions/node/v21.0.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:142:22774)","timestamp":"2025-06-05T09:39:30.695Z"}]