AI agents call memvid_stats to retrieve information from Memvid without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries and retrieves statistical information about an existing memory file. It performs a read-only operation with no capacity to modify, delete, execute code, or trigger external actions. The blast radius of misuse is minimal—an agent could at most gather information about memory files, which poses no security risk beyond information disclosure of potentially sensitive statistics.
From the tool's definition Tool name 'memvid_stats' and description 'Show detailed statistics for a memory file' indicates a retrieval operation with no modification or side effects. The 'Returns' clause confirms it returns data (statistics) without altering state.
Attacks that exploit this kind of access
Show detailed statistics for a memory file. Returns: {. It is categorised as a Read tool in the Memvid MCP Server, which means it retrieves data without modifying state.
Register the Memvid MCP server in PolicyLayer and add a rule for memvid_stats: 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 Memvid. Nothing to install.
memvid_stats 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 memvid_stats 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 memvid_stats. 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.
memvid_stats is provided by the Memvid MCP server (tapiocapioca/memvid-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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