[Bug] Anthropic API: Excessive token consumption on initial prompt and simple continuations

Bug Description
I just noticed the usage percentages today. I’ve been facing this same problem for the last two weeks, but I hadn't paid close attention to the details until now. Today, I saw that the very first prompt—simply typing 'continue'—consumes 38% without any actual analysis. To be clear, I cleared all context beforehand; the session started from zero. Once it actually begins analyzing, each activity consumes about 2% and starts adding up quickly. I am paying $200 for Opus 4.7, and there is definitely a leakage somewhere. I hope someone looks into this and fixes it as soon as possible.

Environment Info

• Platform: darwin
• Terminal: vscode
• Version: 2.1.126
• Feedback ID: f6e5f2b8-4a58-49b1-838c-076f648f873b

Errors

[{"error":"Error: NON-FATAL: Lock acquisition failed for /Users/kt/.local/share/claude/versions/2.1.126 (expected in multi-process scenarios)\n    at r86 (/$bunfs/root/src/entrypoints/cli.js:2768:2177)\n    at HD8 (/$bunfs/root/src/entrypoints/cli.js:2768:1257)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-05-04T21:29:24.122Z"}]