Write a System Prompt for an AI Agent

    Write a system prompt for an AI agent based on the description below. Treat it as an operating manual, not a personality sketch.

What the agent is for:
{{purpose}}

Who uses it, and in what context:
{{context}}

What it must NOT do / its boundaries:
{{constraints}}

Structure the system prompt with clear sections covering:
- **Role & objective** — what the agent is responsible for, in one or two lines.
- **How to behave** — tone, level of detail, and how it should handle the main tasks.
- **Boundaries** — what it must refuse or escalate, and what's out of scope.
- **Failure behavior** — what to do when it's unsure, lacks information, or a request is ambiguous (for example, ask a clarifying question rather than guess).
- **Output expectations** — the format and structure of its responses, if that matters.

Keep instructions plain and direct; avoid vague superlatives, and don't stack aggressive "you must always" language. If a key detail (like the boundaries) is missing, ask me for it before writing.