gmail_send_email
Send an email using the configured Gmail account.
This record as markdown: /tools/nitrostack/gmail-send-email.md
What gmail_send_email does on Nitrostack
AI agents invoke gmail_send_email to trigger actions in Nitrostack. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call: builds kicked off, notifications sent, workflows started.
Why gmail_send_email is rated High
Triggers external email delivery, causing real-world communication side effects irreversible after sending.
From the tool's definition Send an email using the configured Gmail account
Attacks that exploit this kind of access
The rule that runs gmail_send_email safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Nitrostack, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For gmail_send_email, this is the rule to start with:
gmail_send_email stays usable, but rate-capped: a runaway agent can't fire it dozens of times a minute. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect Nitrostack, apply this rule, and every gmail_send_email call is checked against it from then on.
Questions about gmail_send_email
Send an email using the configured Gmail account. It is categorised as a Execute tool in the Nitrostack MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.
Register the Nitrostack MCP server in PolicyLayer and add a rule for gmail_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 Nitrostack. Nothing to install.
gmail_send_email is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.
Yes. Add a rate_limit block to the gmail_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 gmail_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.
gmail_send_email is provided by the Nitrostack MCP server (nitrocloudofficial/nitrostack). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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