Bug Report - Extreme usage limit drain on Max Plan with Claude Code (one prompt consumes huge amounts)

Bug Description
Subject / Issue Type: Bug Report - Extreme usage limit drain on Max Plan with Claude Code (one prompt consumes huge amounts)

Hello Anthropic Support Team,

I'm a paying customer on the Max Plan and I'm experiencing a severe issue with usage limits in Claude Code (CLI / VS Code extension).

Problem description:

• Today I sent only one single, very simple prompt (nothing complex, no long context, no agents running in background).
• This one prompt immediately consumed 100% of my current 5-hour session limit.
• Additionally, the system continued to deduct extra usage / additional quota even though no active session was open anymore and I was not interacting with Claude at all.

This behavior started / worsened noticeably today. Before that, the same workflow never came close to exhausting the limits so quickly.

What I expected:
A normal, simple prompt should consume a reasonable small amount of the session limit, and usage should only be counted while I'm actively using the tool.

Steps to reproduce:

1. Start a fresh Claude Code session on Max Plan in CLI Mode.
2. Send one short, routine prompt (e.g. small code change or question).
3. Observe that the session limit jumps dramatically or hits 100%.
4. Close the session / walk away → continued deduction visible in account.

This makes Claude Code practically unusable for productive work on the Max Plan and feels like a regression/bug (possibly related to broken prompt caching or incorrect token counting).

I have already seen that many other users are reporting the exact same issue on GitHub (for example issue https://github.com/anthropics/claude-code/issues/41930 and related threads).

Could you please investigate this on my account and let me know if this is a known bug and when a fix can be expected? If needed, I can provide more details like exact timestamps, screenshots of the usage bar, or logs.

Thank you in advance!

Environment Info

• Platform: darwin
• Terminal: iTerm.app
• Version: 2.1.100
• Feedback ID: 0208581d-a222-45ec-8a6d-2911a57e030d

Errors

[{"error":"Error: 429 {\"type\":\"error\",\"error\":{\"type\":\"rate_limit_error\",\"message\":\"This request would exceed your account's rate limit. Please try again later.\"},\"request_id\":\"req_011CZvUWKp3i2yQoMyJKv9S5\"}\n    at generate (/$bunfs/root/src/entrypoints/cli.js:11:52623)\n    at makeRequest (/$bunfs/root/src/entrypoints/cli.js:50:4943)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-04-10T17:20:51.064Z"}]