Context
Every loop sends its context to the model on each call: the system prompt, injected files, tool definitions, MCP tools, dynamic instructions and the conversation.
Every loop sends its context to the model on each call: the system prompt, injected files, tool definitions, MCP tools, dynamic instructions and the conversation. When it reaches the loop’s auto-compact threshold, the history is summarized.
/context [loop] (palette “Context usage”) shows what fills the selected
loop’s context, like Studio’s context breakdown:
- the total against the auto-compact threshold, and where that threshold comes from (the loop, the agent, the model, or the default);
- the categories, biggest first: system prompt, injected files, built-in tools, each MCP server, dynamic instructions, conversation.
| Key | Action |
|---|---|
Enter | The category’s biggest items |
c | Compact now (asks) |
r | Measure again |
←, → | Other loops |
Esc | Close |
A loop that is not running has nothing to measure.
The Chat footer shows ctx 42%: the latest call’s input against the
threshold, amber from 70%, red from 90%. It appears after a call completes
while the app is open and clears on compact or clear.
To free context: /compact (summarize now), /clear (drop the loop’s
history, asks), mute skills you do not need (/skills), turn off tools
(/tools), or change the threshold (/compaction, see
Agent settings).