send_html_email · Gworkspace MCP: Risk & Policy

WHAT IT DOES

What send_html_email does on Gworkspace

AI agents invoke send_html_email to trigger actions in Gworkspace. 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 IT NEEDS A POLICY

Why send_html_email needs a policy

Sending an email triggers an external operation with real-world consequences — it delivers messages to recipients outside the system. This is an irreversible external action (you cannot unsend an email), making it Execute at minimum. It carries high severity because a misused AI agent could send phishing, spam, or sensitive data to arbitrary recipients at scale.

From the tool's definition Send an HTML email with optional plain-text fallback

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

send_html_email Rate-limited

send_html_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.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "send_html_email": {
      "limits": [
        {
          "counter": "send_html_email_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

RATE-LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches Gworkspace, so you can run agents against it safely.

FAQ

Questions about send_html_email

What does the send_html_email tool do? +

Send an HTML email with optional plain-text fallback. It is categorised as a Execute tool in the Gworkspace MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on send_html_email? +

Register the Gworkspace MCP server in PolicyLayer and add a rule for send_html_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 Gworkspace. Nothing to install.

What risk level is send_html_email? +

send_html_email is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.

Can I rate-limit send_html_email? +

Yes. Add a rate_limit block to the send_html_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.

How do I block send_html_email completely? +

Set action: deny in the PolicyLayer policy for send_html_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.

What MCP server provides send_html_email? +

send_html_email is provided by the Gworkspace MCP server (leoonic/gworkspace-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

// THE FULL RECORD

send_html_email is one line of Gworkspace's registry record.

The record carries the whole server: verified identity, auth posture, risk grade, every tool classified, recommended policy — re-checked continuously.

Teams ship this data inside their own products. See what a licence covers →