AI agents call index_stats to retrieve information from Mind Mem without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves operational statistics and monitoring information about the memory system. It has no side effects, does not execute code, does not modify data, and does not delete anything. It is a pure read operation for observability and diagnostics.
From the tool's definition Tool name 'index_stats' and description 'Block counts, index staleness, vector coverage, and MIND kernel status' indicate retrieval of metadata and status information only.
Attacks that exploit this kind of access
Block counts, index staleness, vector coverage, and MIND kernel status. It is categorised as a Read tool in the Mind Mem MCP Server, which means it retrieves data without modifying state.
Register the Mind Mem MCP server in PolicyLayer and add a rule for index_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 Mind Mem. Nothing to install.
index_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 index_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 index_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.
index_stats is provided by the Mind Mem MCP server (ovidiu-eremia/mind-mem). 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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