# Instructions

The system instruction defines the role, behavior, and boundaries of the AI agent.\
Without a clear system instruction, an agent may behave unpredictably or produce inconsistent results.

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#### Guidelines for writing a good system instruction

* Be explicit about what the agent **is allowed** and **not allowed** to do
* Clearly describe the **role** of the agent (e.g. assistant, analyst, validator)
* Define **input expectations**, where applicable
* Avoid unnecessary verbosity
* Do not include implementation details that belong in data flows

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A well-defined system instruction significantly improves the quality and consistency of the agent’s output.