Add /usage command support for corporate plans

Preflight Checklist

• [x] I have searched existing requests and this feature hasn't been requested yet
• [x] This is a single feature request (not multiple features)

Problem Statement

The /usage command is currently only available for subscription plans (Claude Max/Pro), but not for corporate plans. This leaves corporate plan users without visibility into their plan usage limits and rate limit status through the CLI.

## Current Behavior

• /usage command is restricted to subscription plans only
• Corporate plan users receive no output or indication that the command isn't available for their account type
• No alternative command provides plan usage limits or rate limit information for corporate users

Proposed Solution

## Expected Behavior

The /usage command should work for corporate plan users and display:

• Current usage against plan limits
• Rate limit status
• Any relevant usage metrics for the corporate plan

Alternative Solutions

## Current Workarounds

• /cost - Shows token usage per session but not plan limits
• /stats - Shows historical patterns but not plan limits
• /context - Shows only current context window usage
• Contacting corporate admin for manual usage reports (inefficient)

Priority

Critical - Blocking my work

Feature Category

CLI commands and flags

Use Case Example

Corporate plan users need to track their usage to:

• Monitor consumption against organizational limits
• Understand rate limit status to optimize workflow
• Plan resource allocation and avoid hitting limits unexpectedly
• Provide visibility that's equally (if not more) important for corporate environments

Additional Context

This feature parity gap affects corporate users who rely on Claude Code CLI for development workflows. Having real-time visibility into plan usage would greatly improve the experience for enterprise customers.

Environment:

• CLI tool: Claude Code
• Account type: Corporate plan

Thank you for considering this enhancement!