Module 08 / Build together
Put one AI step in a workflow.
Turn a fictional request into a short reviewable summary.
Build one thingCheck it worksChoose an extension
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Module 08 / Build together
Before you start.
01
You already know
Module 07. Facilitator has prepared n8n and a working local Ollama model.
02
Open these tools
n8n Basic LLM Chain, Ollama Chat Model and local model credentials.
03
Check the requirement
Local inference uses your hardware. Hosted API alternatives may incur charges.
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Module 08 / Build together
Your first small win.
Summarise this fictional request in one sentence. Use only its facts: I want the community room for a reading circle on Saturday. Time and permission are not confirmed. Mark missing facts as unknown.
Copy this prompt from the learner page. Replace bracketed placeholders yourself.03 / 17
Module 08 / Build together
What happens between input and output?
1The fixed workflow decides when the model runs.
2The prompt defines the output, not a guarantee.
3A person checks the summary before using it.
Follow the data. Name the human decision.04 / 17
Module 08 / Build together
Step 01. Check the prepared model.
1Confirm Ollama is running and a suitable model is downloaded.
2Ask the facilitator to test the connection.
3Do not spend the session downloading a large model.
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Module 08 / Build together
Step 02. Create the input item.
1Add Manual Trigger and Edit Fields.
2Create a String request with the fictional message.
3Execute and inspect the request field.
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Module 08 / Build together
Step 03. Add the language-model step.
1Connect Basic LLM Chain.
2Choose Prompt: Define below.
3Paste the summary prompt in the user-message field.
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Module 08 / Build together
Step 04. Connect the model.
1Attach Ollama Chat Model to the chain model connector.
2Use prepared Ollama credentials and the installed model name.
3If n8n is in Docker, confirm the reachable host address.
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Module 08 / Build together
Step 05. Run and inspect.
1Execute once and open the chain output.
2Check the one-sentence summary and unknown facts.
3Remove added promises; do not connect a send action.
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Module 08 / Build together
Step 06. Compare a second input.
1Change request to a different fictional message.
2Run again and compare outputs.
3Save the prompt and one correction beside the workflow.
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Module 08 / Build together
Make the working version.
Summarise this request in one sentence, then list missing facts. Use only the input, no promises or invented dates. Request: {{$json.request}}Copy this prompt from the learner page. Replace bracketed placeholders yourself.11 / 17
Module 08 / Build together
Ask for a review. Then check it.
Compare the summary with the original request. Identify unsupported facts and missing caveats. Give a corrected summary. Original: [paste]. Summary: [paste].
Copy this prompt from the learner page. Replace bracketed placeholders yourself.12 / 17
Module 08 / Build together
Prove your result works.
1The chain receives request from the input item.
2Summary contains no invented time or permission.
3Two different inputs produce appropriate checked summaries.
Record the input, the output and one check.13 / 17
Module 08 / Build together
When it does not work yet.
01
No prompt specified
Choose Define below and verify the request expression.
02
Model connection fails
Check installed model and reachable Ollama Base URL; cloud n8n cannot see your laptop localhost.
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Module 08 / Build together
Choose your next challenge.
01
Core complete
Show one checked output to a partner.
02
Extension 1
Use a structured output parser after text works.
03
Extension 2
Add an explicit approval step before any external action.
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Module 08 / Build together
Keep the result. Keep the evidence.
Turn a fictional request into a short reviewable summary.
Save your filesSave your promptName the next change
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Module 08 / Build together
Sources you can check.
01
n8n
Basic LLM Chain
02
n8n
Ollama credentials
03
Ollama
Quickstart
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