ops

Build a email triager in YAML

An agent that reads an inbox, classifies messages, drafts replies, and queues them for approval.

channels.gmailapprovalstriggers.cron

The pattern

Connects to IMAP or the Gmail API, classifies each unread message (reply, archive, escalate, snooze), drafts a reply if needed, and queues the draft for human approval before sending. The approval gate is the difference between a useful agent and a liability.

What good looks like

Classification accuracy above 90% on a representative inbox
Drafts that match the user's style after a week of training
Sends only after explicit human approval
Categories are consistent week over week

Common pitfalls

Auto-sending replies (the one thing you must not do)
Vague categories that drift over time
Treating spam differently from cold outreach
No fallback when the LLM is uncertain

The minimum YAML to ship this

app.yaml

1modules:2  channels:3    config:4      gmail: { credential: gmail_oauth }5  approvals:6    config:7      require_for: [send_email]89triggers:10  - id: new-mail11    kind: cron12    schedule: "*/5 * * * *"13    target: { agent: triager, message: "Triage unread mail." }1415agents:16  - id: triager17    modules: [channels, approvals]18    brain: { model: claude-haiku-4-5 }

Ship in 5 minutes

Install Digitorn and deploy this agent

# 1. install runtime
curl -sSL https://digitorn.ai/install | sh

# 2. save the YAML above to ~/.digitorn/apps/my-email-triage/app.yaml
mkdir -p ~/.digitorn/apps/my-email-triage
# paste the YAML into app.yaml

# 3. deploy
digitorn deploy my-email-triage

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The minimum YAML to ship this

app.yaml

1modules:2  channels:3    config:4      gmail: { credential: gmail_oauth }5  approvals:6    config:7      require_for: [send_email]89triggers:10  - id: new-mail11    kind: cron12    schedule: "*/5 * * * *"13    target: { agent: triager, message: "Triage unread mail." }1415agents:16  - id: triager17    modules: [channels, approvals]18    brain: { model: claude-haiku-4-5 }

# 1. install runtime curl -sSL https://digitorn.ai/install | sh # 2. save the YAML above to ~/.digitorn/apps/my-email-triage/app.yaml mkdir -p ~/.digitorn/apps/my-email-triage # paste the YAML into app.yaml # 3. deploy digitorn deploy my-email-triage