[Bug] Model performance degradation: Opus responding with increased errors and context loss

Bug Description
What did you do to my Opus 4.7? It seems dumber, out of context, making errors everywhere... this has been the most frustrating session I have had so far. Make Opus Smart again please...

Environment Info

• Platform: darwin
• Terminal: Apple_Terminal
• Version: 2.1.148
• Feedback ID: ff2252cc-9f00-4edf-93cf-cdadfac574c8

Errors

[{"error":"Error: File does not exist. Note: your current working directory is /Users/jpfrut.\n    at call (/$bunfs/root/src/entrypoints/cli.js:7044:9750)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-05-23T01:45:45.352Z"},{"error":"Error: VirtualMessageList: duplicate sibling itemKeys (deduped via #N suffix; upstream uuid-dup): [assistant/thinking] 06d4f21c-172d-4a78-90ce-8ae25493d0dd-69907e37-243f-406d-a61d-1a002ebfa35a ×2, [assistant/text] e569f883-b9b6-460e-b3da-8fd131099466-69907e37-243f-406d-a61d-1a002ebfa35a ×2, [system/stop_hook_summary] 985a707b-7612-43b3-ad25-b443e84cbd5b-69907e37-243f-406d-a61d-1a002ebfa35a ×2\n    at Yu3 (/$bunfs/root/src/entrypoints/cli.js:9381:9814)\n    at <anonymous> (/$bunfs/root/src/entrypoints/cli.js:9381:879)\n    at mT (/$bunfs/root/src/entrypoints/cli.js:550:30352)\n    at <anonymous> (/$bunfs/root/src/entrypoints/cli.js:537:9671)\n    at JLK (/$bunfs/root/src/entrypoints/cli.js:9381:871)\n    at iY (/$bunfs/root/src/entrypoints/cli.js:550:21159)\n    at aY (/$bunfs/root/src/entrypoints/cli.js:550:39934)\n    at $a (/$bunfs/root/src/entrypoints/cli.js:550:50749)\n    at AN_ (/$bunfs/root/src/entrypoints/cli.js:550:87790)\n    at A__ (/$bunfs/root/src/entrypoints/cli.js:550:86751)","timestamp":"2026-05-23T05:38:41.835Z"},{"error":"Error: VirtualMessageList: duplicate sibling itemKeys (deduped via #N suffix; upstream uuid-dup): [assistant/thinking] 06d4f21c-172d-4a78-90ce-8ae25493d0dd-5ceee8aa-d8d6-4655-8e7f-4d1ff4ccc3f3 ×2, [assistant/text] e569f883-b9b6-460e-b3da-8fd131099466-5ceee8aa-d8d6-4655-8e7f-4d1ff4ccc3f3 ×2, [system/stop_hook_summary] 985a707b-7612-43b3-ad25-b443e84cbd5b-5ceee8aa-d8d6-4655-8e7f-4d1ff4ccc3f3 ×2\n    at Yu3 (/$bunfs/root/src/entrypoints/cli.js:9381:9814)\n    at <anonymous> (/$bunfs/root/src/entrypoints/cli.js:9381:879)\n    at mT (/$bunfs/root/src/entrypoints/cli.js:550:30352)\n    at <anonymous> (/$bunfs/root/src/entrypoints/cli.js:537:9671)\n    at JLK (/$bunfs/root/src/entrypoints/cli.js:9381:871)\n    at iY (/$bunfs/root/src/entrypoints/cli.js:550:21159)\n    at aY (/$bunfs/root/src/entrypoints/cli.js:550:39934)\n    at $a (/$bunfs/root/src/entrypoints/cli.js:550:50749)\n    at AN_ (/$bunfs/root/src/entrypoints/cli.js:550:87790)\n    at A__ (/$bunfs/root/src/entrypoints/cli.js:550:86751)","timestamp":"2026-05-23T19:39:29.619Z"},{"error":"Error: File does not exist. Note: your current working directory is /Users/jpfrut.\n    at call (/$bunfs/root/src/entrypoints/cli.js:7044:9750)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-05-23T19:46:51.554Z"}]