Anthropic API Request Blocked: Potential Usage Policy Violation During Go API Handler Debugging

Resolved 💬 3 comments Opened Aug 18, 2025 by eleven-am Closed Jan 6, 2026

Bug Description
I really am not sure whats happenng, it is debugging my go api handler and i keep getting this API Error: Claude Code is unable to respond to this request, which appears to violate our Usage Policy
(https://www.anthropic.com/legal/aup). Please double press esc to edit your last message or start a new session for Claude Code
to assist with a different task. I am not even sure what could be triggering this so. there you go

Environment Info

  • Platform: darwin
  • Terminal: Apple_Terminal
  • Version: 1.0.83
  • Feedback ID: 3f7a310d-af09-4a2f-a7aa-d73a84bfdca2

Errors

[{"error":"Error: Language not supported while highlighting code, falling back to markdown: \n    at NX (file:///Users/royossai/.nvm/versions/node/v22.17.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:1774:1184)\n    at file:///Users/royossai/.nvm/versions/node/v22.17.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:1774:2172\n    at Array.map (<anonymous>)\n    at NX (file:///Users/royossai/.nvm/versions/node/v22.17.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:1774:2143)\n    at file:///Users/royossai/.nvm/versions/node/v22.17.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:1774:2059\n    at Array.map (<anonymous>)\n    at NX (file:///Users/royossai/.nvm/versions/node/v22.17.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:1774:2048)\n    at file:///Users/royossai/.nvm/versions/node/v22.17.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:1774:912\n    at Array.map (<anonymous>)\n    at ZW (file:///Users/royossai/.nvm/versions/node/v22.17.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:1774:903)","timestamp":"2025-08-18T16:14:13.944Z"},{"error":"Error: Language not supported while highlighting code, falling back to markdown: \n    at NX (file:///Users/royossai/.nvm/versions/node/v22.17.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:1774:1184)\n    at file:///Users/royossai/.nvm/versions/node/v22.17.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:1774:912\n    at Array.map (<anonymous>)\n    at ZW (file:///Users/royossai/.nvm/versions/node/v22.17.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:1774:903)\n    at fkB (file:///Users/royossai/.nvm/versions/node/v22.17.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:2358:5231)\n    at SR (file:///Users/royossai/.nvm/versions/node/v22.17.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:330:19859)\n    at rb (file:///Users/royossai/.nvm/versions/node/v22.17.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:332:42835)\n    at ab (file:///Users/royossai/.nvm/versions/node/v22.17.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:332:38356)\n    at wj (file:///Users/royossai/.nvm/versions/node/v22.17.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:332:38284)\n    at aR (file:///Users/royossai/.nvm/versions/node/v22.17.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:332:38138)","timestamp":"2025-08-18T16:14:13.948Z"},{"error":"Error: stream ended without producing a Message with role=assistant\n    at dZ1.A (file:///Users/royossai/.nvm/versions/node/v22.17.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:950:10397)\n    at dZ1.finalMessage (file:///Users/royossai/.nvm/versions/node/v22.17.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:950:8917)\n    at process.processTicksAndRejections (node:internal/process/task_queues:105:5)\n    at async MI8 (file:///Users/royossai/.nvm/versions/node/v22.17.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:1875:18382)\n    at async PI8.sG1.showErrors (file:///Users/royossai/.nvm/versions/node/v22.17.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:1875:26960)\n    at async sG1 (file:///Users/royossai/.nvm/versions/node/v22.17.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:1875:13705)\n    at async PI8 (file:///Users/royossai/.nvm/versions/node/v22.17.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:1875:26671)\n    at async file:///Users/royossai/.nvm/versions/node/v22.17.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:1875:28259\n    at async dN0 (file:///Users/royossai/.nvm/versions/node/v22.17.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:1875:3698)\n    at async jI (file:///Users/royossai/.nvm/versions/node/v22.17.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:1875:28165)","timestamp":"2025-08-18T16:32:16.696Z"},{"error":"Error: Language not supported while highlighting code, falling back to markdown: \n    at NX (file:///Users/royossai/.nvm/versions/node/v22.17.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:1774:1184)\n    at file:///Users/royossai/.nvm/versions/node/v22.17.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:1774:912\n    at Array.map (<anonymous>)\n    at ZW (file:///Users/royossai/.nvm/versions/node/v22.17.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:1774:903)\n    at Object.renderToolResultMessage (file:///Users/royossai/.nvm/versions/node/v22.17.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:1928:1036)\

Note: Error logs were truncated.

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