Using Your Prompt — Where to Paste It

Bridge the gap between 'I have a prompt' and 'I have a working AI agent.'

4 min read

You've built your prompt. Now what?

Your prompt map is finished. You've exported it. Now it's time to actually use it — paste it into an AI tool and bring your agent to life. This page walks you through exactly how to do that in the most popular tools.

Using your prompt in ChatGPT

ChatGPT is the most popular option, and it works with both free and paid accounts. Here's how to set it up so every conversation uses your agent's instructions:

1
Go to chat.openai.com and log in (or create a free account).
2
Click your profile picture in the bottom-left corner, then choose Settings.
3
Find Custom Instructions (sometimes called "Personalization").
4
Paste your exported prompt into the field labeled "How would you like ChatGPT to respond?"
5
Click Save.
6
Start a New Chat and begin chatting. That's it — every conversation will now use your agent's instructions automatically.
If you want to use different agents for different conversations, just swap out the custom instructions before starting a new chat. Or, if you have ChatGPT Plus, you can create a custom GPT instead.

Opening ChatGPT settings → navigating to Custom Instructions → pasting the prompt → saving → starting a new chat and seeing the agent respond

Video • 30 seconds

Using your prompt in Claude

Claude by Anthropic works great with your prompt too — both the free and paid versions. The setup is a little different because Claude doesn't have a custom instructions box in the same way:

1
Go to claude.ai and log in (or create a free account).
2
Start a new conversation.
3
Paste your entire prompt as the first message. Start it with something like: "Here are your instructions:" followed by your full prompt text.
4
Hit Send.
5
Now chat normally. Claude will follow the instructions you just gave it for the rest of the conversation.
If you have Claude Pro, check out Projects. You can save your prompt as project instructions, and every conversation inside that project will use your agent automatically — no need to paste it each time. It's the best option for persistent prompts.

Opening Claude → starting a new conversation → pasting prompt as first message with 'Here are your instructions:' → sending → chatting with the agent

Video • 25 seconds

Other AI tools

Your prompt isn't locked to one platform. It works in any AI tool that lets you provide a system message or custom instructions. Here are a few others worth trying:

Google Gemini — paste your prompt at the start of a conversation, similar to the Claude method. Perplexity — works the same way, paste as the first message. Poe — lets you create custom bots with a system prompt field, which is perfect for pasting your exported prompt.

The key is the same everywhere: find where the tool lets you give the AI its instructions, and paste your prompt there.

For developers: using the JSON export

If you're building your own app or integrating with an API, use the .json download from the export page. Inside the JSON file, look for the "assembled" field — it contains the full prompt as a single string. Use that string as the system message in your API call.

The "assembled" field is your complete prompt, ready to drop into any API's system message parameter. No extra formatting needed — it's already structured for you.

Testing that it works

Once you've pasted your prompt, here's a quick way to check that everything is set up correctly:

Type the exact same example conversations you wrote in your Examples node. Does the agent respond in a similar way? If yes, it's working. If the responses feel off — too generic, wrong tone, missing information — go back to your prompt map and strengthen your examples or add more detail to your knowledge node.

Your examples are your best testing tool. They're the closest thing to a "right answer" you have. If the agent nails those, it'll handle real conversations well too.

Typing an example conversation from the Examples node into ChatGPT → comparing the agent's response to the expected output → showing a match

Video • 20 seconds

You just learned how to paste your prompt into ChatGPT, Claude, and other AI tools. You know how developers can use the JSON export for API integration, and how to test that your agent is responding correctly. Your prompt map is no longer just a document — it's a working AI agent.