API Request Validation Error: Missing Thinking Block in Assistant Message

Bug Description
⎿ API Error: 400
{"type":"error","error":{"type":"invalid_request_error","message":"messages.1.content.0.type:
Expected thinking or redacted_thinking, but found text. When thinking is enabled, a
final assistant message must start with a thinking block (preceeding the lastmost set of
tool_use and tool_result blocks). We recommend you include thinking blocks from previous
turns. To avoid this requirement, disable thinking. Please consult our documentation at
https://docs.anthropic.com/en/docs/build-with-claude/extended-thinking"}}

whenever claude thinks, this happens. cant use claude's thinking mode at all now!

Environment Info

• Platform: macos
• Terminal: iTerm.app
• Version: 0.2.122
• Feedback ID: bb4c6ede-29c2-4d9e-8aca-de0510dddb0c

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 rB (file:///Users/darin/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:603:3513)\n    at file:///Users/darin/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:533:14558\n    at D (file:///Users/darin/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:491:12878)\n    at a$1 (file:///Users/darin/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:533:13806)\n    at GB (file:///Users/darin/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:533:13423)\n    at q36 (file:///Users/darin/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:2037:21268)","timestamp":"2025-05-20T00:31:29.300Z"},{"error":"RangeError [ERR_CHILD_PROCESS_STDIO_MAXBUFFER]: stdout maxBuffer length exceeded\n    at Socket.onChildStdout (node:child_process:481:14)\n    at Socket.emit (node:events:507:28)\n    at Socket.emit (node:domain:489:12)\n    at addChunk (node:internal/streams/readable:559:12)\n    at readableAddChunkPushByteMode (node:internal/streams/readable:510:3)\n    at Readable.push (node:internal/streams/readable:390:5)\n    at Pipe.onStreamRead (node:internal/stream_base_commons:189:23)","timestamp":"2025-05-20T00:31:29.971Z"},{"error":"RangeError [ERR_CHILD_PROCESS_STDIO_MAXBUFFER]: stdout maxBuffer length exceeded\n    at Socket.onChildStdout (node:child_process:481:14)\n    at Socket.emit (node:events:507:28)\n    at Socket.emit (node:domain:489:12)\n    at addChunk (node:internal/streams/readable:559:12)\n    at readableAddChunkPushByteMode (node:internal/streams/readable:510:3)\n    at Readable.push (node:internal/streams/readable:390:5)\n    at Pipe.onStreamRead (node:internal/stream_base_commons:189:23)","timestamp":"2025-05-20T00:31:39.280Z"},{"error":"RangeError [ERR_CHILD_PROCESS_STDIO_MAXBUFFER]: stdout maxBuffer length exceeded\n    at Socket.onChildStdout (node:child_process:481:14)\n    at Socket.emit (node:events:507:28)\n    at Socket.emit (node:domain:489:12)\n    at addChunk (node:internal/streams/readable:559:12)\n    at readableAddChunkPushByteMode (node:internal/streams/readable:510:3)\n    at Readable.push (node:internal/streams/readable:390:5)\n    at Pipe.onStreamRead (node:internal/stream_base_commons:189:23)","timestamp":"2025-05-20T00:31:39.624Z"},{"error":"RangeError [ERR_CHILD_PROCESS_STDIO_MAXBUFFER]: stdout maxBuffer length exceeded\n    at Socket.onChildStdout (node:child_process:481:14)\n    at Socket.emit (node:events:507:28)\n    at Socket.emit (node:domain:489:12)\n    at addChunk (node:internal/streams/readable:559:12)\n    at readableAddChunkPushByteMode (node:internal/streams/readable:510:3)\n    at Readable.push (node:internal/streams/readable:390:5)\n    at Pipe.onStreamRead (node:internal/stream_base_commons:189:23)","timestamp":"2025-05-20T00:31:40.152Z"},{"error":"RangeError [ERR_CHILD_PROCESS_STDIO_MAXBUFFER]: stdout maxBuffer length exceeded\n    at Socket.onChildStdout (node:child_process:481:14)\n    at Socket.emit (node:events:507:28)\n    at Socket.emit (node:domain:489:12)\n    at addChunk (node:internal/streams/readable:559:12)\n    at readableAddChunkPushByteMode (node:internal/streams/readable:510:3)\n    at Readable.push (node:internal/streams/readable:390:5)\n    at Pipe.onStreamRead (node:internal/stream_base_commons:189:23)","timestamp":"2025-05-20T00:31:40.181Z"},{"error":"RangeError [ERR_CHILD_PROCESS_STDIO_MAXBUFFER]: stdout maxBuffer length exceeded\n    at Socket.onChildStdout (node:child_process:481:14)\n    at Socket.emit (node:events:507:28)\n    at Socket.emit (node:domain:489:12)\n    at addChunk (node:internal/streams/readable:559:12)\n    at readableAddChunkPushByteMode (node:internal/streams/readable:510:3)\n    at Readable.push (node:internal/streams/readable:390:5)\n    at Pipe.onStreamRead (node:internal/stream_base_commons:189:23)","time

Note: Error logs were truncated.