Gmail Skill Skill | Agent Skills

Gmail Skill

Manage emails through Gmail API - read, search, send, and organize across multiple Google accounts.

Account Setup

Before running any command, read accounts.yaml to check registered accounts.

If accounts.yaml is missing or empty → Read references/setup-guide.md for initial setup

# accounts.yaml example
accounts:
  personal:
    email: user@gmail.com
    description: Personal Gmail
  work:
    email: user@company.com
    description: Work account

Email Sending Workflow (5 Steps)

When sending emails, create 5 Tasks with TaskCreate and execute sequentially:

| Step | Task | Key Action | |------|------|----------| | 1 | Gather context | Run Explore SubAgents in parallel: recipient info, related projects, background context | | 2 | Check previous conversations | Search --query "to:recipient OR from:recipient newer_than:90d" → AskUserQuestion for thread selection | | 3 | Draft email | Compose draft → AskUserQuestion for feedback | | 4 | Test send | Send [TEST] email to user's own address → Open in Gmail web → Request confirmation | | 5 | Actual send | Send to recipient → Report completion |

Signature: Append ---\nSent with Claude Code to all outgoing emails

Workflow Example: "Send a meeting email to John"

1. Create 5 Tasks
2. Step 1: Run parallel Explore SubAgents
   - Search recipient (John) info (partners/, projects/, context.md, etc.)
   - Search meeting context (calendar, recent meeting notes, etc.)
3. Step 2: Search "to:john@company.com OR from:john@company.com"
   → If previous conversation exists, AskUserQuestion (reply/new email)
4. Step 3: Draft email → AskUserQuestion (proceed/revise)
5. Step 4: Test send to my email → Open in Gmail web (`open "https://mail.google.com/mail/u/0/#inbox/{message_id}"`) → Request confirmation
6. Step 5: Actual send → Done

CLI Quick Reference

# List messages
uv run python scripts/list_messages.py --account work --query "is:unread" --max 10

# Send email
uv run python scripts/send_message.py --account work --to "user@example.com" --subject "Subject" --body "Content"

# Check profile
uv run python scripts/manage_labels.py --account work profile

Detailed CLI usage: references/cli-usage.md Search query reference: references/search-queries.md

View Email in Web

After sending, use the returned Message ID to view directly in Gmail web:

# URL format
https://mail.google.com/mail/u/0/#inbox/{message_id}

# Example: Open in browser after test send
open "https://mail.google.com/mail/u/0/#inbox/19c145bbd47ddd01"

Note: u/0 is the first logged-in account, u/1 is the second account

File Structure

skills/gmail/
├── SKILL.md
├── accounts.yaml           # Account metadata
├── scripts/                # CLI scripts
├── references/
│   ├── setup-guide.md      # Initial setup guide
│   ├── cli-usage.md        # Detailed CLI usage
│   ├── search-queries.md   # Search query reference
│   └── credentials.json    # OAuth Client ID (gitignore)
├── assets/
│   ├── accounts.default.yaml  # Account config template
│   ├── email-templates.md     # Email body templates
│   └── signatures.md          # Signature templates (Plain/HTML)
└── accounts/               # Per-account tokens (gitignore)

Error Handling

| Situation | Resolution | |-----------|------------| | accounts.yaml missing | Read references/setup-guide.md for initial setup | | Token missing | Guide user to run setup_auth.py --account <name> | | Token expired | Auto-refresh; if failed, guide re-authentication |

Agent Skills: Gmail Skill

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