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Published
1 week ago
•
anthropics
anthropics
[Bug] Anthropic API Error: Cannot modify thinking blocks in assistant message
Bug Description
⎿ Error: Error during compaction: Error: API Error: 400
{"type":"error","error":{"type
":"invalid_request_error","message":"messages.1.content.171: 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_011CVXozHBp7k5NqxsYAvi37"}
Environment Info
- Platform: darwin
- Terminal: WarpTerminal
- Version: 2.0.52
- Feedback ID:
Errors
[{"error":"Error: 400 {\"type\":\"error\",\"error\":{\"type\":\"invalid_request_error\",\"message\":\"messages.1.content.171: `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_011CVXmt3MDW4sNZP5eE8Pzg\"}\n at I9.generate (file:///Users/jonmc12/.nvm/versions/node/v20.19.2/lib/node_modules/@anthropic-ai/claude-code/cli.js:459:9423)\n at XT.makeStatusError (file:///Users/jonmc12/.nvm/versions/node/v20.19.2/lib/node_modules/@anthropic-ai/claude-code/cli.js:1312:2195)\n at XT.makeRequest (file:///Users/jonmc12/.nvm/versions/node/v20.19.2/lib/node_modules/@anthropic-ai/claude-code/cli.js:1312:5419)\n at process.processTicksAndRejections (node:internal/process/task_queues:95:5)\n at async l41.model (file:///Users/jonmc12/.nvm/versions/node/v20.19.2/lib/node_modules/@anthropic-ai/claude-code/cli.js:3934:14345)\n at async l41 (file:///Users/jonmc12/.nvm/versions/node/v20.19.2/lib/node_modules/@anthropic-ai/claude-code/cli.js:2081:1872)\n at async tX9 (file:///Users/jonmc12/.nvm/versions/node/v20.19.2/lib/node_modules/@anthropic-ai/claude-code/cli.js:3934:14497)\n at async file:///Users/jonmc12/.nvm/versions/node/v20.19.2/lib/node_modules/@anthropic-ai/claude-code/cli.js:3934:7845\n at async Nr1 (file:///Users/jonmc12/.nvm/versions/node/v20.19.2/lib/node_modules/@anthropic-ai/claude-code/cli.js:1464:1971)\n at async MIA (file:///Users/jonmc12/.nvm/versions/node/v20.19.2/lib/node_modules/@anthropic-ai/claude-code/cli.js:3934:7815)","timestamp":"2025-11-27T04:37:11.467Z"},{"error":"Error: API Error: 400 {\"type\":\"error\",\"error\":{\"type\":\"invalid_request_error\",\"message\":\"messages.1.content.171: `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_011CVXmt3MDW4sNZP5eE8Pzg\"}\n at NB1 (file:///Users/jonmc12/.nvm/versions/node/v20.19.2/lib/node_modules/@anthropic-ai/claude-code/cli.js:1885:1542)\n at process.processTicksAndRejections (node:internal/process/task_queues:95:5)\n at async MG2 (file:///Users/jonmc12/.nvm/versions/node/v20.19.2/lib/node_modules/@anthropic-ai/claude-code/cli.js:1885:9562)\n at async sM (file:///Users/jonmc12/.nvm/versions/node/v20.19.2/lib/node_modules/@anthropic-ai/claude-code/cli.js:2219:6527)\n at async sM (file:///Users/jonmc12/.nvm/versions/node/v20.19.2/lib/node_modules/@anthropic-ai/claude-code/cli.js:2219:11737)\n at async sM (file:///Users/jonmc12/.nvm/versions/node/v20.19.2/lib/node_modules/@anthropic-ai/claude-code/cli.js:2219:11737)\n at async sM (file:///Users/jonmc12/.nvm/versions/node/v20.19.2/lib/node_modules/@anthropic-ai/claude-code/cli.js:2219:11737)\n at async sM (file:///Users/jonmc12/.nvm/versions/node/v20.19.2/lib/node_modules/@anthropic-ai/claude-code/cli.js:2219:11737)\n at async sM (file:///Users/jonmc12/.nvm/versions/node/v20.19.2/lib/node_modules/@anthropic-ai/claude-code/cli.js:2219:11737)\n at async sM (file:///Users/jonmc12/.nvm/versions/node/v20.19.2/lib/node_modules/@anthropic-ai/claude-code/cli.js:2219:11737)","timestamp":"2025-11-27T04:37:11.474Z"},{"error":"AxiosError: Request failed with status code 403\n at Ej (file:///Users/jonmc12/.nvm/versions/node/v20.19.2/lib/node_modules/@anthropic-ai/claude-code/cli.js:24:1137)\n at Unzip.<anonymous> (file:///Users/jonmc12/.nvm/versions/node/v20.19.2/lib/node_modules/@anthropic-ai/claude-code/cli.js:29:9828)\n at Unzip.emit (node:events:536:35)\n at Unzip.emit (node:domain:489:12)\n at endReadableNT (node:internal/streams/readable:1698:12)\n at process.processTicksAndRejections (node:internal/process/task_queues:82:21)\n at mFA.request (file:///Users/jonmc12/.nvm/versions/node/v20.19.2/lib/node_modules/@anthropic-ai/claude-code/cli.js:31:2130)\n at process.processTicksAndRejections (node:internal/process/task_queues:95:5)\n at async VPA (file:///Users/jonmc12/.nvm/versions/node/v20.19.2/lib/node_modules/@anthropic-ai/claude-code/cli.js:2813:54697)\n at async P39 (file:///Users/jonmc12/.nvm/versions/node/v20.19.2/lib/node_modules/@anthropic-ai/claude-code/cli.js:2813:54964)\n at async B (file:///Users/jonmc12/.nvm/versions/node/v20.19.2/lib/node_modules/@anthropic-ai/claude-code/cli.js:2813:55781)","timestamp":"2025-11-27T04:37
Note: Error logs were truncated.
