Send an email via SendGrid. Args: to_email: Recipient email address. subject: Email subject. body: Email body (plain text or HTML). is_html: Set True if body contains HTML (default False).
AI agents use sendgrid_send_email to create or update resources in autoMate — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your autoMate environment.
Email sending is a Write operation—it creates and transmits new data (an email message) with reversible side effects. While emails cannot be unsent in the technical sense, they are not destructively overwriting existing data or causing permanent loss.
From the tool's definition Tool name is 'sendgrid_send_email' with parameters for to_email, subject, and body. Description states 'Send an email via SendGrid.' This creates/sends new email messages.
Documented attack patterns abuse exactly the kind of access sendgrid_send_email gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and autoMate, and nothing reaches the server without passing your rules. This is the rule we recommend for sendgrid_send_email:
{
"version": "1",
"default": "deny",
"tools": {
"sendgrid_send_email": {
"limits": [
{
"counter": "sendgrid_send_email_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}sendgrid_send_email stays usable, but capped — an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.
Free to start. No card required.
Send an email via SendGrid. Args: to_email: Recipient email address. subject: Email subject. body: Email body (plain text or HTML). is_html: Set True if body contains HTML (default False). It is categorised as a Write tool in the autoMate MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the autoMate MCP server in PolicyLayer and add a rule for sendgrid_send_email: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches autoMate. Nothing to install.
sendgrid_send_email is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the sendgrid_send_email rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.
Set action: deny in the PolicyLayer policy for sendgrid_send_email. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.
sendgrid_send_email is provided by the autoMate MCP server (yuruotong1/automate). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 128 autoMate tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
128 autoMate tools catalogued and risk-classified — across an index of 42,500+ MCP servers.