hippo_facts_aggregate_overall

FORGIA #277 — facts overall: n_total, n_topics,

SERVERVerimem SOURCEaureliocpr-ctrl/verimem

Low RISK CLASS

Category Read

Parameters 00 required

Recommended Allowedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/verimem/hippo-facts-aggregate-overall.md

WHAT IT DOES

What hippo_facts_aggregate_overall does on Verimem

AI agents call hippo_facts_aggregate_overall to retrieve information from Verimem without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

RISK

Why hippo_facts_aggregate_overall is rated Low

This tool queries and returns aggregated fact statistics from the memory engine. It retrieves information about the state of stored facts (total count, topic count) without side effects, creating new data, executing external operations, or deleting anything. This is a straightforward read operation with minimal blast radius.

From the tool's definition Tool name 'hippo_facts_aggregate_overall' with description indicating it retrieves aggregate statistics ('facts overall: n_total, n_topics'). Returns counts and metrics without modifying data.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs hippo_facts_aggregate_overall safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Verimem, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For hippo_facts_aggregate_overall, this is the rule to start with:

hippo_facts_aggregate_overall Allowed

hippo_facts_aggregate_overall is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "hippo_facts_aggregate_overall": {}
  }
}

ALLOW ONLY THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Verimem, apply this rule, and every hippo_facts_aggregate_overall call is checked against it from then on.

FAQ

Questions about hippo_facts_aggregate_overall

What does the hippo_facts_aggregate_overall tool do? +

FORGIA #277 — facts overall: n_total, n_topics,. It is categorised as a Read tool in the Verimem MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on hippo_facts_aggregate_overall? +

Register the Verimem MCP server in PolicyLayer and add a rule for hippo_facts_aggregate_overall: 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 Verimem. Nothing to install.

What risk level is hippo_facts_aggregate_overall? +

hippo_facts_aggregate_overall is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit hippo_facts_aggregate_overall? +

Yes. Add a rate_limit block to the hippo_facts_aggregate_overall 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.

How do I block hippo_facts_aggregate_overall completely? +

Set action: deny in the PolicyLayer policy for hippo_facts_aggregate_overall. 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.

What MCP server provides hippo_facts_aggregate_overall? +

hippo_facts_aggregate_overall is provided by the Verimem MCP server (aureliocpr-ctrl/verimem). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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