Automation library · Chat assistants

Nutritionist AI agent with OpenAI and Postgres

Started by an incoming Telegram message, and works across Postgres and Telegram. It puts OpenAI behind a retrieval step, so answers are drawn from documents you supply rather than from the model alone. 21 steps: large, and worth reading before you trust it with anything live.

LargeCalls a model: OpenAIRetrieval

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21 stepsLarge: read it before trusting it with anything live
0Branches: places the flow splits
0Loops or waits
2Services it connects to

The flow

Starts it 2Model 9Logic 1Service 9

The steps in the order they run, from what starts it.

  1. 1OpenAI Chat ModelLm Chat Open AiModel
  2. 2Simple MemoryMemory Buffer WindowModel
  3. 3Analyze_Image_ToolTool WorkflowModel
  4. 4save to food_intake_toolPostgres ToolService
  5. 5query today food_intakePostgres ToolService
  6. 6Embeddings OpenAIEmbeddings Open AiModel
  7. 7save_recipesTool WorkflowModel
  8. 8delete_recipe_by_idPostgres ToolService
  9. 9update_user_informationPostgres ToolService
  10. 10get user informationPostgres ToolService
  11. 11Schedule TriggerSchedule triggerStarts it
  12. 12OpenAI Chat Model1Lm Chat Open AiModel
  13. 13Telegram TriggerTelegram triggerStarts it
  14. 14AI AgentAgentModel
  15. 15Search For RecipesVector Store PGVectorModel
  16. 16PostgresPostgresService
  17. 17AI Agent1AgentModel
  18. 18Get user informationPostgresService
  19. 19TelegramTelegramService
  20. 20AggregateAggregateLogic
  21. 21Send scheduled summaryTelegramService

How it's built

Starts on
An incoming Telegram message
Steps
21
Size
Large: read it before trusting it with anything live
Connects to
Postgres, Telegram
Model
OpenAI
Retrieval
Answers are drawn from documents you supply, not from the model alone

Questions

What does it need to run?

An n8n account, plus your own Postgres and Telegram accounts, and a key for OpenAI. You connect your own accounts after importing it; none are included.

What starts it?

It starts on an incoming Telegram message.

Does it use AI?

Yes. It calls OpenAI. Its answers draw on documents you give it, not on the model alone. Model calls are billed by the provider, not by n8n.

How long does it take to set up?

Take your time. At 21 steps it is large: read it before trusting it with anything live.

How do I import it?

Copy the workflow, open a new workflow in n8n and paste. The steps appear on the canvas, ready for your own accounts.

Before you run it

Nothing here has been tested by us. It is somebody's working automation, read and described from its own steps. Treat the connections it wants as a list of accounts it will touch, and read the 21 steps before you point it at anything that matters.