Who it's for
- People making a custom GPT, Claude Project or Gemini Gem
- Businesses setting up a support or sales chatbot
- Developers building AI agents
AI tools by job · PromptForge Studio
System prompt generator
A system prompt is the standing instruction behind an assistant. A weak one makes a bot that drifts, rambles or says things it shouldn't. PromptForge's System / Agent category writes a complete one: who the assistant is, what it does and doesn't do, how it talks, and what to do when it isn't sure.
Start free with PromptForge StudioHow PromptForge Studio works1 credit · 2 free credits a day, no sign-up needed
What you get
- Role, scope and audience
- Tone and response length rules
- What to refuse and how to hand off
- Tool use and output formats if needed
How it works
- Choose System / Agent Prompt.
- Describe the assistant, its users and its job.
- Add must-include and avoid rules in Advanced.
- Forge and paste into your assistant's instructions.
Example request
“a WhatsApp assistant for my bakery that answers prices, hours and takes cake orders but never promises delivery times”
What comes back
- Identity: friendly bakery assistant
- Knowledge: where prices and hours go
- Order-taking steps and required details
- Rule: never promise delivery times; hand off to staff
- Tone: short, warm messages
Tips for a better result
- List what the assistant must never do; that is where bots go wrong.
- Include the real facts it needs (prices, hours) in your knowledge section.
- Test it with tricky questions and refine.
Questions
Where do I paste a system prompt?
In the instructions field of your custom GPT, Claude Project, Gem, or your app's system message.
Can it write prompts for agents with tools?
Yes, describe the tools and PromptForge writes when and how to use them.
Is a reusable template possible?
Yes, choose Reusable template in the prompt type option.
What does it cost?
1 credit per prompt.
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