memcp_retention_preview
AI agents call memcp_retention_preview to retrieve information from Memcp without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Despite the empty description, the naming pattern and context of sibling tools strongly suggest this is a Read operation that retrieves or displays a preview of retention-related data. No evidence of side effects, data modification, or destructive operations. Low severity because previewing memory metadata poses minimal risk to the system.
From the tool's definition Tool name 'memcp_retention_preview' suggests a preview or inspection operation. Sibling tools like 'memcp_inspect_context', 'memcp_get_context', and 'memcp_graph_stats' are clearly Read operations.
Documented attack patterns abuse exactly the kind of access memcp_retention_preview gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Memcp, and nothing reaches the server without passing your rules. This is the rule we recommend for memcp_retention_preview:
{
"version": "1",
"default": "deny",
"tools": {
"memcp_retention_preview": {}
}
}memcp_retention_preview is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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memcp_retention_preview. It is categorised as a Read tool in the Memcp MCP Server, which means it retrieves data without modifying state.
Register the Me MCP server in PolicyLayer and add a rule for memcp_retention_preview: 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 Memcp. Nothing to install.
memcp_retention_preview 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 memcp_retention_preview 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 memcp_retention_preview. 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.
memcp_retention_preview is provided by the Me MCP server (maydali28/memcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Memcp, 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.
24 Memcp tools catalogued and risk-classified — across an index of 43,000+ MCP servers.