Create the workflow
Start a new n8n workflow, name it clearly, and save early.
01 Documentation & process
Systems and ideas coming together,
under documentation and process.
A practical build-along system: a conversational workflow brought together with memory, tools, and clear behavioural boundaries.
Open lab manualThe objective
One system. Four connected capabilities.
The workflow accepts a message, interprets intent, remembers context, uses tools when needed, and returns a grounded response.
Chat triggerSystem
ModelMemoryCalculator
Build process
Connect the trigger
Use Chat Trigger as the conversational entry point while testing.
Configure the system
Connect the reasoning core and provide clear instructions, boundaries, and output rules.
Add intelligence
Attach a compatible chat model using credentials stored securely in n8n.
Build context
Connect Simple Memory so the system can recall useful information within a session.
Enable tools
Add Calculator for exact arithmetic, then arrange, save, and test the complete workflow.
Test criteria
Test the system,
not just the answer.
Normal conversation returns a concise description of the system’s role.
Memory stores and retrieves a user name and business in the same session.
Calculator returns $729 for 18 hours at $45 with a 10% discount.
The final message combines remembered business context with the calculated amount.
The system never claims an unavailable external action was completed.
Operating principles
Clear
Practical, concise responses with assumptions made visible.
Accurate
Use tools for calculations and never invent missing facts.
Responsible
Never claim an external action happened unless a connected tool performed it.
Full reference