AI agents call pyp6xer_list_activities to retrieve information from PyP6Xer MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
The tool appears to retrieve or enumerate activities from Primavera P6 project data. Listing operations are non-destructive, read-only actions with no side effects. The lack of description slightly reduces confidence, but the naming convention and sibling tools (critical_path, earned_value, export_*) confirm this server's analytical rather than administrative purpose.
From the tool's definition Tool name 'pyp6xer_list_activities' indicates a listing/retrieval operation. The 'list' verb is typical of Read operations that query and return data without modification.
Documented attack patterns abuse exactly the kind of access pyp6xer_list_activities gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and PyP6Xer MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for pyp6xer_list_activities:
{
"version": "1",
"default": "deny",
"tools": {
"pyp6xer_list_activities": {}
}
}pyp6xer_list_activities is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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pyp6xer_list_activities. It is categorised as a Read tool in the PyP6Xer MCP Server MCP Server, which means it retrieves data without modifying state.
Register the PyP6Xer MCP Server MCP server in PolicyLayer and add a rule for pyp6xer_list_activities: 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 PyP6Xer MCP Server. Nothing to install.
pyp6xer_list_activities is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the pyp6xer_list_activities 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 pyp6xer_list_activities. 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.
pyp6xer_list_activities is provided by the PyP6Xer MCP Server MCP server (paulieb89/pyp6xer-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from PyP6Xer 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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29 PyP6Xer MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.