send-email

name	send-email
type	python
description	Send an email via Gmail SMTP. Body from target/value, headers as parameters. Returns confirmation Note with message-id in metadata.
schema_hint	{"to":"string (recipient address, default: GMAIL_ADDRESS)","subject":"string (subject line, required)","target":"$variable (email body from prior step, optional)","value":"string (literal email body, optional)","cc":"string (CC addresses, comma-separated, optional)","bcc":"string (BCC addresses, comma-separated, optional)","reply_to":"string (Message-ID to thread under, optional)","out":"$variable (optional)"}

send-email

Send an email via Gmail SMTP using App Password authentication. The email body comes from target (a Note or Collection from a prior step) or value (literal text). Returns a confirmation Note with the sent message-id in metadata.

Input

Body content (one of):

• target: Variable or resource ID — content becomes the email body (plain text)
• value: Literal string — used as the email body directly

Header parameters:

Param	Required	Purpose
to	no	Recipient address(es), comma-separated. Default: GMAIL_ADDRESS (the mailbox owner)
subject	yes	Subject line
cc	no	CC address(es), comma-separated
bcc	no	BCC address(es), comma-separated
reply_to	no	Message-ID to thread as a reply (sets In-Reply-To and References headers)

Output

Success (status: "success"):

• resource_id: Note ID containing confirmation text (e.g., "Sent to [e-mail]: Meeting notes").
• Metadata (accessible via get-metadata): message_id, to, cc, bcc, subject, timestamp.

Failure (status: "failed"):

• reason: Error description (e.g., GMAIL_ADDRESS and GMAIL_APP_PASSWORD environment variables required, authentication_failed)

Requirements

• GMAIL_ADDRESS — Gmail address (also the SMTP username and From address)
• GMAIL_APP_PASSWORD — 16-character App Password from Google Account > Security > App Passwords

Behavior

• Connects via STARTTLS to smtp.gmail.com:587
• Sends as plain text (UTF-8)
• If to is omitted, sends to GMAIL_ADDRESS (the mailbox owner)
• From address is always GMAIL_ADDRESS (cannot be spoofed)
• Authentication errors return a generic failure message

Common Workflows

Notify the operator (omit to — sends to mailbox owner):

{"type":"generate-note","prompt":"Summarize today's completed tasks and any blockers","out":"$report"}
{"type":"send-email","target":"$report","subject":"Daily Agent Report","out":"$sent"}

Send a generated report to someone else:

{"type":"generate-note","prompt":"Write a weekly status update covering: shipped auth module, started caching layer, blocked on DB migration","out":"$report"}
{"type":"send-email","target":"$report","to":"[e-mail]","subject":"Weekly Status Update","out":"$sent"}

Reply to an email found via check-email:

{"type":"check-email","from_addr":"[e-mail]","subject":"Q1 planning","limit":1,"out":"$thread"}
{"type":"extract","target":"$thread","instruction":"Extract the Message-ID header","out":"$msg_id"}
{"type":"send-email","value":"Thanks Alice, I'll review the Q1 plan and get back to you by Friday.","to":"[e-mail]","subject":"Re: Q1 planning","reply_to":"$msg_id",

Send synthesized research:

{"type":"search-web","query":"latest developments in AI safety 2026","out":"$research"}
{"type":"synthesize","target":"$research","focus":"key takeaways","format":"executive","out":"$summary"}
{"type":"send-email","target":"$summary","to":"[e-mail]","subject":"AI Safety Brief - Feb 2026","out":"$sent"}