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# prompt

What pi tells the model.

In:
- System prompt assembly, tool descriptions and guidelines.
- Context files (AGENTS.md).
- Skills and prompt templates: discovery, invocation, /skill.
- System prompt stability for prompt caching.

Examples: #9874, #10101, #10343, #10024, #10489, #7787, #10584.

Usually not worth opening: "change the system prompt to say X" taste requests (#10485, #10540).