List, inspect, create, update, or delete Monica activity types (e.g., Meeting, Coffee, Meal). Use this to expand the catalog with custom activity names before logging activities.
AI agents use monica_manage_activity_type to create or update resources in Monica CRM MCP Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Monica CRM MCP Server environment.
While the tool permits deletion (which would normally trigger Destructive classification), the target is configuration/reference data (activity types) rather than core records or business-critical data. The most common operations implied are 'create' and 'update'. However, the delete capability and potential cascade effects on activities that reference deleted types elevates severity to medium.
From the tool's definition Tool description states: 'create, update, or delete Monica activity types' — the delete operation makes this destructive in nature, but the primary use case emphasizes creation and modification of reference data (activity type catalog) rather than core…
Documented attack patterns abuse exactly the kind of access monica_manage_activity_type gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Monica CRM MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for monica_manage_activity_type:
{
"version": "1",
"default": "deny",
"tools": {
"monica_manage_activity_type": {
"limits": [
{
"counter": "monica_manage_activity_type_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}monica_manage_activity_type 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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List, inspect, create, update, or delete Monica activity types (e.g., Meeting, Coffee, Meal). Use this to expand the catalog with custom activity names before logging activities. It is categorised as a Write tool in the Monica CRM MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Monica CRM MCP Server MCP server in PolicyLayer and add a rule for monica_manage_activity_type: 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 Monica CRM MCP Server. Nothing to install.
monica_manage_activity_type 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 monica_manage_activity_type 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 monica_manage_activity_type. 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.
monica_manage_activity_type is provided by the Monica CRM MCP Server MCP server (jacob-stokes/monica-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Monica CRM MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
Free to start. No card required.
21 Monica CRM MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.