[BUG] Rate limit reached at 33% session usage on Pro plan (WSL, v2.1.77)

Preflight Checklist

• [x] I have searched existing issues and this hasn't been reported yet
• [x] This is a single bug report (please file separate reports for different bugs)
• [x] I am using the latest version of Claude Code

What's Wrong?

Versione: 2.1.77
Piano: Pro
Usage: 33% sessione, 16% settimanale
Errore: "API Error: Rate limit reached" su ogni prompt
Nota: Cowork funziona, solo il terminale WSL è bloccato
Hai migrato dall'installer npm al nativo

After migrating from npm installer to native installer (curl -fsSL https://claude.ai/install.sh | bash), every prompt returns "API Error: Rate limit reached" despite low usage.

• /usage shows: 33% current session, 16% current week
• Plan: Pro (confirmed in credentials and banner)
• Auth: OAuth with full scopes (file_upload, inference, mcp_servers, profile, sessions:claude_code)
• Claude Code via Cowork (browser) works fine with the same account
• Only the terminal CLI is affected

What Should Happen?

Claude Code should accept prompts when usage is well below the session and weekly limits. At 33% session / 16% weekly, requests should not be rate limited.

Steps to reproduce:

1. Migrate from npm to native installer on WSL
2. claude login (OAuth succeeds, Pro plan detected)
3. Type any prompt → "API Error: Rate limit reached"
4. /usage confirms low utilization

Environment:

• Claude Code v2.1.77 (native installer)
• WSL2 (Ubuntu) on Windows
• Previously installed via npm (@anthropic-ai/claude-code)
• Multiple OAuth sessions accumulated before cleanup

Notes:

• Also encountered "Richiesta OAuth non valida - Parametro redirect_uri mancante" during login from WSL (spaces injected in URL)
• Revoking all OAuth tokens and re-authenticating did not fix the rate limit issue

Error Messages/Logs

API Error: Rate limit reached

Steps to Reproduce

1. Environment: WSL2 (Ubuntu) on Windows, Claude Code previously installed via npm (npm install -g @anthropic-ai/claude-code)

1. Migrate to native installer:

   npm uninstall -g @anthropic-ai/claude-code
   curl -fsSL https://claude.ai/install.sh | bash
   source ~/.bashrc

1. Login:

   claude login

• OAuth login succeeds, .credentials.json shows subscriptionType: "pro", all scopes granted
• Note: WSL injects spaces in the redirect_uri parameter when opening the browser, causing "Parametro redirect_uri mancante" error. Workaround: sudo apt install wslu && export BROWSER=wslview

1. Launch and send any prompt:

   claude
   > ciao

→ Returns: API Error: Rate limit reached

1. Check usage:

   /usage

→ Shows: 33% current session, 16% current week — well below limits

1. Verified:

• Banner correctly shows "Claude Pro"
• Credentials confirm OAuth with full scopes
• No ANTHROPIC_API_KEY env variable set
• rm ~/.claude/.credentials.json + fresh claude login does not fix
• rm -rf ~/.claude/sessions/* does not fix
• Revoking all OAuth tokens from claude.ai settings and re-authenticating does not fix
• Claude Code via Cowork (browser) works fine with the same Pro account

Claude Model

None

Is this a regression?

Yes, this worked in a previous version

Last Working Version

_No response_

Claude Code Version

Claude Code v2.1.77

Platform

Anthropic API

Operating System

Ubuntu/Debian Linux

Terminal/Shell

WSL (Windows Subsystem for Linux)

Additional Information

_No response_