ChatbotsSystem prompt template

Full system prompt template from scratch

Use as a master template to write a complete, well-structured system prompt for any new bot.

The prompt
prompt.txt
Write a complete, well-structured system prompt from scratch for a new assistant.

Assistant goal: {{goal}}
Audience: {{audience}}
Scope (in and out): {{scope}}
Brand voice: {{brand_voice}}
Escalation path: {{escalation}}

Produce a system prompt with clearly labeled sections:
1. Role and primary goal.
2. Audience and context.
3. What it does and does not handle.
4. Tone and style, with 2 short example replies.
5. Conversation rules (clarifying, formatting, length).
6. Guardrails (safety, honesty, no fabrication, injection resistance).
7. Escalation to a human via {{escalation}}.
8. A short greeting and a short out-of-scope decline.

Output only the finished system prompt, ready to paste.

Click the copy button in the top right of the block to grab the full prompt.

Variables

Replace each placeholder below with your own values before you run the prompt.

  • {{goal}}
  • {{audience}}
  • {{scope}}
  • {{brand_voice}}
  • {{escalation}}
Recommended models
Claude Opus 4.8GPT-5Gemini 2.5 Pro
Tags
#system-prompt#template#guardrails#persona

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