AI agents use edit-block-slot to create or update resources in GoHighLevel MCP Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your GoHighLevel MCP Server environment.
This tool creates or modifies data reversibly. It updates an existing block slot record by ID rather than creating new data or deleting it. The action is reversible—changes can be corrected by subsequent edits. In the context of a CRM/scheduling platform, misuse could cause scheduling conflicts or blocked unavailability periods, but the impact is limited to that specific resource and not account-wide or destructive.
From the tool's definition Tool name 'edit-block-slot' and description 'Update block slot by ID' indicate modification of existing data (block slots, likely calendar or scheduling blocks in the GoHighLevel CRM system).
Documented attack patterns abuse exactly the kind of access edit-block-slot gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and GoHighLevel MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for edit-block-slot:
{
"version": "1",
"default": "deny",
"tools": {
"edit-block-slot": {
"limits": [
{
"counter": "edit-block-slot_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}edit-block-slot 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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Update block slot by ID. It is categorised as a Write tool in the GoHighLevel MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the GoHighLevel MCP Server MCP server in PolicyLayer and add a rule for edit-block-slot: 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.
edit-block-slot 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 edit-block-slot 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 edit-block-slot. 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.
edit-block-slot is provided by the GoHighLevel MCP Server MCP server (drausal/gohighlevel-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from GoHighLevel MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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406 GoHighLevel MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.