Automation library · Lead generation

Classify cold email replies and triage Gmail with Claude

Started by an arriving email, and works across Gmail and Slack. It hands the judgement calls to Claude. 14 steps, 1 branch: a working afternoon to understand properly.

MediumCalls a model: Claude

14 stepsMedium: a working afternoon
1Branch: places the flow splits
0Loops or waits
2Services it connects to

The flow

Starts it 1Model 3Logic 2Service 8

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

  1. 1New Email ReplyGmail triggerStarts it
  2. 2Anthropic Chat ModelLm Chat AnthropicModel
  3. 3Structured Output ParserOutput Parser StructuredModel
  4. 4Config (edit me)SetLogic
  5. 5Classify Reply + Draft ResponseChain LlmModel
  6. 6Route by CategorySwitchLogic
  7. 7Notify SlackSlackService
  8. 8Label Not NowGmailService
  9. 9Label Out Of OfficeGmailService
  10. 10Label UnsubscribeGmailService
  11. 11Label ReferralGmailService
  12. 12Label ObjectionGmailService
  13. 13Label ReviewGmailService
  14. 14Create Gmail DraftGmailService

How it's built

Starts on
An arriving email
Steps
14, with 1 branch
Size
Medium: a working afternoon
Connects to
Gmail, Slack
Model
Claude

Questions

What does it need to run?

An n8n account, plus your own Gmail and Slack accounts, and a key for Claude. 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 Claude. Model calls are billed by the provider, not by n8n.

How long does it take to set up?

Plan an afternoon. 14 steps is enough that you should read each one before running it.

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 14 steps before you point it at anything that matters.