[Bug] Agentic loop terminates prematurely when model avoids iteration

Bug Description
I set a loop and Opus continuously finds ways to not do the loop. Pausing asking questions. Assuming I don't want him to keep working.

Environment Info

• Platform: darwin
• Terminal: tmux
• Version: 2.1.175
• Feedback ID: 1c91873c-b5e8-455f-a887-cec22e00d8ee

Errors

[{"error":"Error: 404 {\"type\":\"error\",\"error\":{\"type\":\"not_found_error\",\"message\":\"Claude Fable 5 is not available. Please use Opus 4.8. Learn more: https://www.anthropic.com/news/fable-mythos-access\"},\"request_id\":\"req_011Cc28j7FEn1Q1RLKQV3K2k\"}\n    at generate (/$bunfs/root/src/entrypoints/cli.js:12:66510)\n    at makeRequest (/$bunfs/root/src/entrypoints/cli.js:52:7694)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-06-13T23:33:57.179Z"}]