AI agents use send_gmail to create or update resources in MCP Starter for Puch AI — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your MCP Starter for Puch AI environment.
Sending emails is a Write operation—it creates new data (email messages) in an external system. Severity is high because unauthorized email sending could be used for phishing, spam, or impersonation. Confidence is reduced to 0.8 due to the missing description, but the tool name is unambiguous.
From the tool's definition Tool name 'send_gmail' indicates it sends emails via Gmail. The empty description prevents detailed capability assessment, but the name strongly suggests composing and dispatching messages, which is a reversible write operation.
Documented attack patterns abuse exactly the kind of access send_gmail gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and MCP Starter for Puch AI, and nothing reaches the server without passing your rules. This is the rule we recommend for send_gmail:
{
"version": "1",
"default": "deny",
"tools": {
"send_gmail": {
"limits": [
{
"counter": "send_gmail_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}send_gmail 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.
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send_gmail. It is categorised as a Write tool in the MCP Starter for Puch AI MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the MCP Starter for Puch AI MCP server in PolicyLayer and add a rule for send_gmail: 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 MCP Starter for Puch AI. Nothing to install.
send_gmail 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 send_gmail 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 send_gmail. 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.
send_gmail is provided by the MCP Starter for Puch AI MCP server (turboml-inc/mcp-starter). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 12 MCP Starter for Puch AI tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
12 MCP Starter for Puch AI tools catalogued and risk-classified — across an index of 42,500+ MCP servers.