Autocomplete Suggestions Not Triggered by `@` Character

Bug Description
@ not trigger suggestions

Environment Info

• Platform: darwin
• Terminal: iTerm.app
• Version: 1.0.31
• Feedback ID: 8df64c8b-4975-4f1e-aced-1a171388fc37

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:984:15)\n    at wrappedFn (node:internal/errors:538:14)\n    at checkExecSyncError (node:child_process:891:11)\n    at execSync (node:child_process:963:15)\n    at NZ (file:///Users/mark/.nvm/versions/node/v20.18.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:700:3921)\n    at file:///Users/mark/.nvm/versions/node/v20.18.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:622:9014\n    at Q (file:///Users/mark/.nvm/versions/node/v20.18.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:526:17199)\n    at GX (file:///Users/mark/.nvm/versions/node/v20.18.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:622:8160)\n    at fS (file:///Users/mark/.nvm/versions/node/v20.18.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:622:7241)\n    at R9 (file:///Users/mark/.nvm/versions/node/v20.18.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:622:11408)","timestamp":"2025-06-23T02:25:53.215Z"},{"error":"RangeError [ERR_CHILD_PROCESS_STDIO_MAXBUFFER]: stdout maxBuffer length exceeded\n    at Socket.onChildStdout (node:child_process:490:14)\n    at Socket.emit (node:events:518:28)\n    at Socket.emit (node:domain:489:12)\n    at addChunk (node:internal/streams/readable:561:12)\n    at readableAddChunkPushByteMode (node:internal/streams/readable:512:3)\n    at Readable.push (node:internal/streams/readable:392:5)\n    at Pipe.onStreamRead (node:internal/stream_base_commons:191:23)","timestamp":"2025-06-23T02:25:54.454Z"},{"error":"RangeError [ERR_CHILD_PROCESS_STDIO_MAXBUFFER]: stdout maxBuffer length exceeded\n    at Socket.onChildStdout (node:child_process:490:14)\n    at Socket.emit (node:events:518:28)\n    at Socket.emit (node:domain:489:12)\n    at addChunk (node:internal/streams/readable:561:12)\n    at readableAddChunkPushByteMode (node:internal/streams/readable:512:3)\n    at Readable.push (node:internal/streams/readable:392:5)\n    at Pipe.onStreamRead (node:internal/stream_base_commons:191:23)","timestamp":"2025-06-23T02:25:55.106Z"}]