Feature: Show per-request token counts in CLI

Feature Request

Display input and output token counts for each request/response cycle in the Claude Code CLI.

Motivation

Currently, there is no way to see how many tokens are being consumed per request in the CLI. The only usage visibility is the aggregate percentage on claude.ai, which doesn't help users understand:

• Which prompts are token-heavy
• How context window usage grows over a session
• Whether they are approaching session limits

Proposed Behavior

After each response, optionally show a token usage summary, for example:

[Tokens: 1,234 in / 567 out | Session: 12,450 total]

Or via a flag like --show-tokens / a setting in config.

Alternatives Considered

• Checking claude.ai usage dashboard — only shows aggregate %, not per-request breakdown
• Using the raw API directly — not practical for CLI users

Environment

• Tool: Claude Code CLI