How I built an AI agent to automate my emails with LangSmith Agent Builder

LangSmith Agent Builder is a no-code agent builder. I built an email assistant to monitor and respond to emails, that I've been using for the last ~3 months. Here's what it looks like:

1/ Triggers: it is triggered by incoming emails. I don't have to do any work to kick it off - it just runs automatically

2/ Tools via MCP: connects to gmail (read emails, send email) and gcal (read calendar, read events, create event)

3/ Human in the loop: the "write" actions (sending email, creating calendar) require human approval to run. More on this later - but wanted to highlight that it's able to go completely wild!

4/ Subagent for calendar scheduling: LLMs suck at working with calendars! So i have a subagent specifically for finding my availability - its works a lot better

5/ Agent inbox to review: as mentioned, some actions require human approval. LangSmith Agent Builder ships with an agent inbox to review and approve the actions the agent wants to take

6/ message_user to ask questions: sometimes my agent doesn't know what it should do. It has a message_user tool, which it can use to ask me a question! This also shows up in agent inbox

7/ Remembers what I say: it updates it memory automatically based on my responses to it! This keeps me from having to repeat myself

Try out the template: https://smith.langchain.com/agents/templates?viewingTemplateId=email-assistant&skipOnboarding=true

Or build your own agent: https://smith.langchain.com/agents?skipOnboarding=true