context-usage
The context-usage extension adds a /context command that
visualizes how your context window is being used with a waffle
chart and per-category token breakdown.
/contextCategories shown
Section titled “Categories shown”| Category | What it measures |
|---|---|
| System prompt | Base instructions |
| System tools | Tool definitions |
| Context files | AGENTS.md, CLAUDE.md |
| Skills | Available skill metadata in prompt |
| Messages | Conversation history |
| Free space | Remaining capacity |
| Autocompact buffer | Reserved for compaction (when enabled) |
The waffle chart gives an at-a-glance view of how much context budget each category consumes, helping you identify when the conversation is getting large or when context files are taking too much space.