[Bug] Unexpected high token consumption with previously efficient patterns

Bug Description
I shreded through my tokens today using common patterns which have not gotten me even remotely close in the past.

Environment Info

• Platform: darwin
• Terminal: tmux
• Version: 2.1.91
• Feedback ID: 0356d948-9401-4fa4-b94c-4a6bd6aeb4aa

Errors

[{"error":"Error: NON-FATAL: Lock acquisition failed for /Users/naur/.local/share/claude/versions/2.1.91 (expected in multi-process scenarios)\n    at Am_ (/$bunfs/root/src/entrypoints/cli.js:1899:2153)\n    at jl6 (/$bunfs/root/src/entrypoints/cli.js:1899:1233)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-04-03T21:58:19.997Z"},{"error":"FileTooLargeError: File content (320.2KB) exceeds maximum allowed size (256KB). Use offset and limit parameters to read specific portions of the file, or search for specific content instead of reading the whole file.\n    at RKH (/$bunfs/root/src/entrypoints/cli.js:3871:536)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-04-03T22:34:57.761Z"}]