[Bug Report] Model performance regression in Claude Code CLI

Bug Description
TERRIBLE. please bring back old claude this model is dumb af

Environment Info

• Platform: darwin
• Terminal: ghostty
• Version: 2.0.73
• Feedback ID: f6b8b21f-4eec-4343-9cc1-c275e7578c2b

Errors

[{"error":"Error: NON-FATAL: Lock acquisition failed for /Users/rish/.local/share/claude/versions/2.0.73 (expected in multi-process scenarios)\n    at zER (/$bunfs/root/claude:2473:2165)\n    at qzA (/$bunfs/root/claude:2473:1885)\n    at processTicksAndRejections (native:7:39)","timestamp":"2025-12-21T22:25:25.579Z"},{"error":"Error\n    at CS (/$bunfs/root/claude:59:1144)\n    at <anonymous> (/$bunfs/root/claude:60:10093)\n    at emit (node:events:92:22)\n    at endReadableNT (internal:streams/readable:861:50)\n    at processTicksAndRejections (native:7:39)\n    at request (/$bunfs/root/claude:62:2149)\n    at processTicksAndRejections (native:7:39)","timestamp":"2025-12-21T22:25:25.614Z"},{"error":"Error\n    at CS (/$bunfs/root/claude:59:1144)\n    at <anonymous> (/$bunfs/root/claude:60:10093)\n    at emit (node:events:92:22)\n    at endReadableNT (internal:streams/readable:861:50)\n    at processTicksAndRejections (native:7:39)\n    at request (/$bunfs/root/claude:62:2149)\n    at processTicksAndRejections (native:7:39)","timestamp":"2025-12-21T22:25:25.849Z"},{"error":"Error\n    at CS (/$bunfs/root/claude:59:1144)\n    at <anonymous> (/$bunfs/root/claude:60:10093)\n    at emit (node:events:92:22)\n    at endReadableNT (internal:streams/readable:861:50)\n    at processTicksAndRejections (native:7:39)\n    at request (/$bunfs/root/claude:62:2149)\n    at processTicksAndRejections (native:7:39)","timestamp":"2025-12-21T22:25:26.398Z"},{"error":"Error\n    at CS (/$bunfs/root/claude:59:1144)\n    at <anonymous> (/$bunfs/root/claude:60:10093)\n    at emit (node:events:92:22)\n    at endReadableNT (internal:streams/readable:861:50)\n    at processTicksAndRejections (native:7:39)\n    at request (/$bunfs/root/claude:62:2149)\n    at processTicksAndRejections (native:7:39)","timestamp":"2025-12-21T22:25:26.400Z"},{"error":"Error: NON-FATAL: Lock acquisition failed for /Users/rish/.local/share/claude/versions/2.0.75 (expected in multi-process scenarios)\n    at zER (/$bunfs/root/claude:2473:2165)\n    at QKB (/$bunfs/root/claude:2471:8637)\n    at async X01 (/$bunfs/root/claude:2471:11835)\n    at async lx (/$bunfs/root/claude:2473:236)\n    at async <anonymous> (/$bunfs/root/claude:2473:14361)\n    at processTicksAndRejections (native:7:39)","timestamp":"2025-12-21T22:25:33.955Z"},{"error":"Error: NON-FATAL: Lock acquisition failed for /Users/rish/.local/share/claude/versions/2.0.75 (expected in multi-process scenarios)\n    at zER (/$bunfs/root/claude:2473:2165)\n    at QKB (/$bunfs/root/claude:2471:8637)\n    at async X01 (unknown)\n    at async lx (unknown)\n    at unknown\n    at processTicksAndRejections (native:7:39)","timestamp":"2025-12-21T22:25:45.633Z"},{"error":"Error: NON-FATAL: Lock acquisition failed for /Users/rish/.local/share/claude/versions/2.0.75 (expected in multi-process scenarios)\n    at zER (/$bunfs/root/claude:2473:2165)\n    at QKB (/$bunfs/root/claude:2471:8637)\n    at async X01 (/$bunfs/root/claude:2471:11835)\n    at async lx (/$bunfs/root/claude:2473:236)\n    at async <anonymous> (/$bunfs/root/claude:2473:14361)\n    at processTicksAndRejections (native:7:39)","timestamp":"2025-12-21T22:43:38.423Z"},{"error":"Error: NON-FATAL: Lock acquisition failed for /Users/rish/.local/share/claude/versions/2.0.75 (expected in multi-process scenarios)\n    at zER (/$bunfs/root/claude:2473:2165)\n    at QKB (/$bunfs/root/claude:2471:8637)\n    at async X01 (/$bunfs/root/claude:2471:11835)\n    at async lx (/$bunfs/root/claude:2473:236)\n    at async <anonymous> (/$bunfs/root/claude:2473:14361)\n    at processTicksAndRejections (native:7:39)","timestamp":"2025-12-21T22:45:53.356Z"},{"error":"Error: NON-FATAL: Lock acquisition failed for /Users/rish/.local/share/claude/versions/2.0.75 (expected in multi-process scenarios)\n    at zER (/$bunfs/root/claude:2473:2165)\n    at QKB (/$bunfs/root/claude:2471:8637)\n    at async X01 (/$bunfs/root/claude:2471:11835)\n    at async lx (/$bunfs/root/claude:2473:236)\n    at async <anonymous> (/$bunfs/root/claude:2473:14361)\n    at processTicksAndRejections (native:7:39)","timestamp":"2025-12-21T23:06:27.285Z"},{"error":"Error: NON-FATAL: Lock acquisition failed for /Users/rish/.local/share/claude/versions/2.0.75 (expected in multi-process scenarios)\n    at zER (/$bunfs/root/claude:2473:2165)\n    at QKB (/$bunfs/root/claude:2471:8637)\n    at async X01 (/$bunfs/root/claude:2471:11835)\n    at async lx (/$bunfs/root/claude:2473:236)\n    at async <anonymous> (/$bunfs/root/cl

Note: Error logs were truncated.