Automation library · Customer support

Automated Gmail support agent with Gemini and RAG

Started by an arriving email, and works across Gmail and Pinecone. It puts Gemini and OpenAI behind a retrieval step, so answers are drawn from documents you supply rather than from the model alone. 8 steps: small enough to read in one sitting and change without fear.

SmallCalls a model: Gemini, OpenAIRetrieval

8 stepsSmall: readable in one sitting
0Branches: places the flow splits
0Loops or waits
2Services it connects to

The flow

Starts it 1Model 6Service 1

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

  1. 1Gmail TriggerGmail triggerStarts it
  2. 2Gemini 2.5Lm Chat Google GeminiModel
  3. 3Cohere RerankerReranker CohereModel
  4. 4OpenAI EmbeddingsEmbeddings Open AiModel
  5. 5Postgres MemoryMemory Postgres ChatModel
  6. 6Email Support AgentAgentModel
  7. 7Pinecone RetrieverVector Store PineconeModel
  8. 8Gmail ReplyGmailService

How it's built

Starts on
An arriving email
Steps
8
Size
Small: readable in one sitting
Connects to
Gmail, Pinecone
Model
Gemini, 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 Gmail and Pinecone accounts, and a key for Gemini and OpenAI. You connect your own accounts after importing it; none are included.

What starts it?

It starts on an arriving email.

Does it use AI?

Yes. It calls Gemini and 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?

Not long. At 8 steps it can be read in one sitting and changed without fear.

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 8 steps before you point it at anything that matters.