[Bug] Claude 4.6 Sonnet (max) generating reasoning data outside thinking blocks

Bug Description
Sonnet broke, thinking outside of <thinking></thinking> blocks.

Environment Info

• Platform: linux
• Terminal: ghostty
• Version: 2.1.143
• Feedback ID: 18e4d12e-f1da-4399-9584-73c5e4e3d33c

Errors

[{"error":"AxiosError: Request failed with status code 400\n    at Bo (/$bunfs/root/src/entrypoints/cli.js:121:1194)\n    at <anonymous> (/$bunfs/root/src/entrypoints/cli.js:126:12716)\n    at emit (node:events:92:22)\n    at endReadableNT (internal:streams/readable:865:50)\n    at processTicksAndRejections (native:7:39)\n    at request (/$bunfs/root/src/entrypoints/cli.js:128:2467)\n    at async _4$ (/$bunfs/root/src/entrypoints/cli.js:253:277854)\n    at async v86 (/$bunfs/root/src/entrypoints/cli.js:408:5913)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-05-18T20:49:04.397Z"},{"error":"Error: 401 {\"type\":\"error\",\"error\":{\"type\":\"authentication_error\",\"message\":\"Invalid authentication credentials\"},\"request_id\":\"req_011CbAh9rRzNCfWH2MPZLrKJ\"}\n    at generate (/$bunfs/root/src/entrypoints/cli.js:11:62083)\n    at makeRequest (/$bunfs/root/src/entrypoints/cli.js:51:7694)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-05-18T20:49:29.907Z"},{"error":"Error: 401 {\"type\":\"error\",\"error\":{\"type\":\"authentication_error\",\"message\":\"Invalid authentication credentials\"},\"request_id\":\"req_011CbAh9rG5K2mrQkAcRSsmq\"}\n    at generate (/$bunfs/root/src/entrypoints/cli.js:11:62083)\n    at makeRequest (/$bunfs/root/src/entrypoints/cli.js:51:7694)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-05-18T20:49:29.986Z"},{"error":"SyntaxError: JSON Parse error: Unexpected identifier \"Please\"\n    at <parse> (:0)\n    at parse (unknown)\n    at lMq (/$bunfs/root/src/entrypoints/cli.js:183:10088)\n    at _ (/$bunfs/root/src/entrypoints/cli.js:139:18031)\n    at <anonymous> (/$bunfs/root/src/entrypoints/cli.js:185:1658)\n    at G1H (/$bunfs/root/src/entrypoints/cli.js:6608:326)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-05-18T20:49:29.987Z"},{"error":"Error: File does not exist. Note: your current working directory is /home/developer/cogniar/cogniar-growth-engine.\n    at call (/$bunfs/root/src/entrypoints/cli.js:4956:11529)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-05-19T15:11:53.938Z"}]