[Bug] Anthropic API Error: Cannot modify thinking blocks in assistant messages

Bug Description
Error: Error during compaction: Error: API Error: 400 {"type":"error","error":{"type":"invalid_request_error","message":"messages.11.content.5: thinking or
redacted_thinking blocks in the latest assistant message cannot be modified. These blocks must remain as they were in the original
response."},"request_id":"req_011CW33zheiSpQZcs6AJVkRW"}

Environment Info

• Platform: darwin
• Terminal: Apple_Terminal
• Version: 2.0.65
• Feedback ID: 2f08cda3-26c0-4803-9152-550701111266

Errors

[{"error":"AxiosError: Request failed with status code 401\n    at Kj (file:///Users/berrazuriz/.nvm/versions/node/v22.20.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:187:1137)\n    at IncomingMessage.<anonymous> (file:///Users/berrazuriz/.nvm/versions/node/v22.20.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:188:9852)\n    at IncomingMessage.emit (node:events:531:35)\n    at IncomingMessage.emit (node:domain:489:12)\n    at endReadableNT (node:internal/streams/readable:1698:12)\n    at process.processTicksAndRejections (node:internal/process/task_queues:90:21)\n    at XKA.request (file:///Users/berrazuriz/.nvm/versions/node/v22.20.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:190:2130)\n    at process.processTicksAndRejections (node:internal/process/task_queues:105:5)\n    at async t_B (file:///Users/berrazuriz/.nvm/versions/node/v22.20.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:1009:47184)","timestamp":"2025-12-12T11:27:43.094Z"},{"error":"AxiosError: Request failed with status code 401\n    at Kj (file:///Users/berrazuriz/.nvm/versions/node/v22.20.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:187:1137)\n    at IncomingMessage.<anonymous> (file:///Users/berrazuriz/.nvm/versions/node/v22.20.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:188:9852)\n    at IncomingMessage.emit (node:events:531:35)\n    at IncomingMessage.emit (node:domain:489:12)\n    at endReadableNT (node:internal/streams/readable:1698:12)\n    at process.processTicksAndRejections (node:internal/process/task_queues:90:21)\n    at XKA.request (file:///Users/berrazuriz/.nvm/versions/node/v22.20.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:190:2130)\n    at process.processTicksAndRejections (node:internal/process/task_queues:105:5)\n    at async $25 (file:///Users/berrazuriz/.nvm/versions/node/v22.20.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:2766:8456)\n    at async file:///Users/berrazuriz/.nvm/versions/node/v22.20.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:2766:9350","timestamp":"2025-12-12T11:27:43.263Z"},{"error":"Error: EISDIR: illegal operation on a directory, read\n    at Module.readFileSync (node:fs:441:20)\n    at file:///Users/berrazuriz/.nvm/versions/node/v22.20.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:9:429\n    at NI (file:///Users/berrazuriz/.nvm/versions/node/v22.20.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:8:8084)\n    at Object.readFileSync (file:///Users/berrazuriz/.nvm/versions/node/v22.20.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:9:404)\n    at CyB (file:///Users/berrazuriz/.nvm/versions/node/v22.20.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:4353:16895)\n    at Object.call (file:///Users/berrazuriz/.nvm/versions/node/v22.20.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:1431:909)\n    at A35 (file:///Users/berrazuriz/.nvm/versions/node/v22.20.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:2963:24919)","timestamp":"2025-12-12T12:58:32.586Z"},{"error":"Error: Request was aborted.\n    at Na._createMessage (file:///Users/berrazuriz/.nvm/versions/node/v22.20.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:126:3151)\n    at processTicksAndRejections (node:internal/process/task_queues:105:5)\n    at runNextTicks (node:internal/process/task_queues:69:3)\n    at process.processTimers (node:internal/timers:520:9)","timestamp":"2025-12-12T13:30:56.410Z"},{"error":"Error: Request was aborted.\n    at Na._createMessage (file:///Users/berrazuriz/.nvm/versions/node/v22.20.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:126:3151)\n    at processTicksAndRejections (node:internal/process/task_queues:105:5)\n    at runNextTicks (node:internal/process/task_queues:69:3)\n    at process.processTimers (node:internal/timers:520:9)","timestamp":"2025-12-12T13:58:52.501Z"},{"error":"AxiosError: timeout of 5000ms exceeded\n    at vC.<anonymous> (file:///Users/berrazuriz/.nvm/versions/node/v22.20.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:188:10436)\n    at vC.emit (node:events:519:28)\n    at vC.emit (node:domain:489:12)\n    at Timeout.<anonymous> (file:///Users/berrazuriz/.nvm/versions/node/v22.20.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:187:5600)\n    at listOnTimeout (node:internal/timers:588:17)\n    at process.processTimers (node:internal/timers:523:7)\n    at XKA.request (file:///Users/berrazuriz/.nvm/versions/node/v22.20.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:190:2130)\n    at async SZ0 (file:///Users/berr

Note: Error logs were truncated.