hippo_oracle_query

FORGIA #315 — Round 31: cross-tier memory retrieval.

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-oracle-query.md

WHAT IT DOES

What hippo_oracle_query does on Verimem

AI agents call hippo_oracle_query 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_oracle_query is rated Low

This tool retrieves data from memory across temporal or hierarchical tiers. The verb 'retrieval' and the server's stated purpose (memory engine with recall capabilities) indicate a read-only operation with no side effects. No data is created, modified, deleted, or externally executed.

From the tool's definition Tool name and description indicate 'cross-tier memory retrieval' — a querying/retrieval operation with no indication of modification, deletion, or execution of external commands.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs hippo_oracle_query 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_oracle_query, this is the rule to start with:

hippo_oracle_query Allowed

hippo_oracle_query 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_oracle_query": {}
  }
}

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_oracle_query call is checked against it from then on.

FAQ

Questions about hippo_oracle_query

What does the hippo_oracle_query tool do? +

FORGIA #315 — Round 31: cross-tier memory retrieval. 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_oracle_query? +

Register the Verimem MCP server in PolicyLayer and add a rule for hippo_oracle_query: 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_oracle_query? +

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

Can I rate-limit hippo_oracle_query? +

Yes. Add a rate_limit block to the hippo_oracle_query 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_oracle_query completely? +

Set action: deny in the PolicyLayer policy for hippo_oracle_query. 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_oracle_query? +

hippo_oracle_query 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.

KEEP EXPLORING

More on Verimem, and thousands of servers like it.

This server

All 237 Verimem tools →

Across the catalogue

claude_query on Claude Bridge → The MCP Attack Database →

Guides

Roll out MCP under one policy →Data exfiltration →MCP token cost →