gmail-no-send

Gmail CLI that cannot send email. Not "won't" — can't. There is no send function in the codebase.

Install

Requires Python 3.9+.

cd <skill-dir>/scripts/gmail-no-send
pip install -e .

Or install from the GitHub repo:

pip install git+https://github.com/meimakes/gmail-no-send.git

First-Time Auth

Each user needs their own Google Cloud OAuth credentials:

1. Create a project at console.cloud.google.com
2. Enable the Gmail API
3. Create OAuth 2.0 credentials (Desktop app type)
4. Download client_secret.json

Then authenticate:

gmail-no-send auth --client-secret /path/to/client_secret.json --account myname

This opens a browser for Google OAuth consent. Token is saved to ~/.config/gmail-no-send/token.json and auto-refreshes.

Commands

All commands require --account (matches the name used during auth).

Search

gmail-no-send search --account mei --query "from:someone@example.com newer_than:7d" --max 10

Returns JSON array of message IDs and thread IDs.

Read

gmail-no-send read --account mei --message-id <id>

Returns full message payload (headers, body, labels).

Create Draft

gmail-no-send draft-create --account mei --to "someone@example.com" --subject "Re: topic" --body "Draft text here"
gmail-no-send draft-create --account mei --to "someone@example.com" --subject "Long draft" --body-file /path/to/body.txt

Update Draft

gmail-no-send draft-update --account mei --draft-id <id> --to "someone@example.com" --subject "Updated" --body "New body"

Archive

gmail-no-send archive --account mei --message-id <id>

Removes INBOX label (message stays in All Mail).

Security Model

• No send command exists. The CLI has 6 commands: auth, search, read, draft-create, draft-update, archive. None send.
• OAuth scope caveat: Gmail API has no "drafts-only" scope. The compose scope technically allows send via API. This tool enforces no-send at the application layer — the code simply doesn't call the send endpoint.
• Audit log: All operations logged to ~/.config/gmail-no-send/audit.log with timestamps.
• Token storage: ~/.config/gmail-no-send/token.json — user-local, not shared.

For a deeper security analysis, see references/threat-model.md.

Agent Usage Notes

• Search returns message IDs, not content. Call read to get the actual message.
• Draft creation returns the draft ID for future updates.
• Use --body-file for long draft bodies instead of --body to avoid shell escaping issues.
• The tool does NOT support attachments, labels, or filters — intentionally minimal.