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

Bug Description

Could not compact due "API Error: Cannot modify thinking blocks in assistant messages"

Environment Info

• Platform: darwin
• Terminal: vscode
• Version: 2.0.56
• Feedback ID: 3ca3bde4-4d8b-4104-9dff-9746c869258d

Errors

[{"error":"AxiosError: Request failed with status code 404\n    at Sj (file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:24:1137)\n    at Unzip.<anonymous> (file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:29:9864)\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 zVA.request (file:///opt/homebrew/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 Fg2 (file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:2561:1057)\n    at async Vg2 (file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:2561:2094)\n    at async Object.call (file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:2561:8584)\n    at async Yd5 (file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:2292:16383)","timestamp":"2025-12-02T20:43:29.414Z"},{"error":"Error: 400 {\"type\":\"error\",\"error\":{\"type\":\"invalid_request_error\",\"message\":\"messages.7.content.12: `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_011CVj1mAd176r8FFfiDvFAN\"}\n    at s2.generate (file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:459:9381)\n    at NT.makeStatusError (file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:1317:2195)\n    at NT.makeRequest (file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:1317:5419)\n    at process.processTicksAndRejections (node:internal/process/task_queues:95:5)\n    at async PK9.V61.model (file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:3961:10432)\n    at async V61 (file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:2145:1872)\n    at async PK9 (file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:3961:10586)\n    at async file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:3961:3873\n    at async do1 (file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:1469:2037)\n    at async AYA (file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:3961:3843)","timestamp":"2025-12-03T03:05:46.367Z"},{"error":"Error: API Error: 400 {\"type\":\"error\",\"error\":{\"type\":\"invalid_request_error\",\"message\":\"messages.7.content.12: `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_011CVj1mAd176r8FFfiDvFAN\"}\n    at j21 (file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:1919:1576)\n    at process.processTicksAndRejections (node:internal/process/task_queues:95:5)\n    at async GZ2 (file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:1919:9764)\n    at async G$ (file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:2292:2134)\n    at async file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:2840:1932\n    at async file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:2840:2870\n    at async a99 (file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:2825:2836)\n    at async SJ0 (file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:2825:1407)\n    at async file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:2840:3024\n    at async file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:2822:5335","timestamp":"2025-12-03T03:05:46.385Z"},{"error":"Error: Request was aborted.\n    at NT.makeRequest (file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:1317:3939)\n    at processTicksAndRejections (node:internal/process/task_queues:95:5)\n    at runNextTicks (node:internal/process/task_queues:64:3)\n    at process.processTimers (node:internal/timers:516:9)","timestamp":"2025-12-03T03:05:47.188Z"},{"error":"Error: 400 {\"type\":\"error\",\"error\":{\"type\":\"invalid_request_error\",\"message\":\"messages.7.content.12: `thinking` or `redacted_thinking` blocks in the latest assista

Note: Error logs were truncated.