/usage and /context commands stuck on 'Loading usage data…'

Description

The /usage and /context slash commands never resolve — they display "Loading usage data…" indefinitely and return no data.

Environment

• Claude Code version: 2.1.143
• OS: Linux (WSL2 — kernel 6.6.114.1-microsoft-standard-WSL2)
• Node: v26.1.0
• Install method: npm global (@anthropic-ai/claude-code)

Steps to reproduce

1. Open a Claude Code session
2. Type /usage or /context
3. Observe "Loading usage data…" spinner that never completes

Expected behavior

Usage/context data is displayed.

Additional context

Network connectivity to api.anthropic.com is confirmed working (TLS handshake succeeds, HTTP/2 response received). Re-auth does not resolve the issue.