Add usage tracking design (fc-005)

Design for /usage command to track model usage:
- Parse existing history files (no new logging infrastructure)
- Configurable log levels: minimal, standard, detailed
- Commands: /usage [today|week|month|all] --by [agent|skill|model]
- Token estimation and delegation tracking

Also added future considerations:
- fc-036: API token billing support
- fc-037: Automatic usage summary
- fc-038: Usage dashboard file

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
This commit is contained in:
OpenCode Test
2025-12-31 23:18:55 -08:00
parent f85058fb1e
commit 89b1a30b18
2 changed files with 196 additions and 1 deletions

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