Rate limit incorrectly applied when switching between Max accounts on same device

Summary

Claude Code incorrectly enforces rate limits from one Max account onto a different Max account when both are used on the same device.

Environment

• Claude Code version: 2.0.55
• OS: macOS
• Two separate Claude Max subscriptions on different accounts

Steps to Reproduce

1. Have two Claude Max accounts (Account A and Account B)
2. Use Claude Code with Account A until hitting weekly limit
3. claude logout
4. claude login with Account B (which has 4% usage, well under limit)
5. Attempt to send a message

Expected Behavior

Account B should work normally since it has 96% of its quota remaining.

Actual Behavior

Claude Code shows "weekly limit reached" despite Account B having only 4% usage according to claude.ai/settings.

Troubleshooting Attempted

• claude logout / claude login with Account B - still blocked
• Deleted ~/.claude/statsig/ directory and re-logged in - still blocked
• Revoked ALL authorization tokens at claude.ai/settings/claude-code and fresh login - still blocked
• Verified Account B shows 4% usage at claude.ai/settings (Usage page)

Evidence

The account's usage page confirms only 4% weekly usage and 0% Sonnet usage, yet Claude Code refuses to send messages citing the weekly limit.

Hypothesis

There appears to be device-level or machine-level rate limit tracking that persists across account switches, incorrectly applying Account A's exhausted quota to Account B.