send_sms
Send an SMS message to a contact in GoHighLevel
This record as markdown: /tools/hridayshah7-gohighlevel-mcp/send-sms.md
What send_sms does on GoHighLevel MCP Server
AI agents invoke send_sms to trigger actions in GoHighLevel MCP Server. 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 send_sms is rated High
Sending an SMS is an external operation that delivers a message to a real contact outside the system. It is not merely writing data internally; it triggers an irreversible outbound action (the message is delivered and cannot be recalled). This places it in Execute rather than Write, with high severity since a misused tool could spam or harass contacts at scale.
From the tool's definition "Send an SMS message to a contact" — actively triggers external communication to a real person
Attacks that exploit this kind of access
The rule that runs send_sms safely
PolicyLayer is an MCP gateway: it sits between your AI agents and GoHighLevel MCP Server, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For send_sms, this is the rule to start with:
send_sms 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 GoHighLevel MCP Server, apply this rule, and every send_sms call is checked against it from then on.
Questions about send_sms
Send an SMS message to a contact in GoHighLevel. It is categorised as a Execute tool in the GoHighLevel MCP Server MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.
Register the GoHighLevel MCP Server MCP server in PolicyLayer and add a rule for send_sms: 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 GoHighLevel MCP Server. Nothing to install.
send_sms 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 send_sms 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_sms. 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_sms is provided by the GoHighLevel MCP Server MCP server (hridayshah7/gohighlevel-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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