hippo_facts_find_duplicates
FORGIA #237 — batch duplicate-fact detection.
This record as markdown: /tools/verimem/hippo-facts-find-duplicates.md
What hippo_facts_find_duplicates does on Verimem
AI agents call hippo_facts_find_duplicates 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.
Why hippo_facts_find_duplicates is rated Low
The tool searches/analyzes existing memory facts to detect duplicates. This is a Read operation: it examines data (facts) to extract information (duplicate status) with no side effects, state changes, or destructive actions. The verb 'find' indicates retrieval/identification rather than modification.
From the tool's definition Tool performs 'batch duplicate-fact detection' — a scanning and analysis operation that retrieves or queries data to identify duplicates without modifying, deleting, or executing external operations.
Attacks that exploit this kind of access
The rule that runs hippo_facts_find_duplicates 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_find_duplicates, this is the rule to start with:
hippo_facts_find_duplicates is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect Verimem, apply this rule, and every hippo_facts_find_duplicates call is checked against it from then on.
Questions about hippo_facts_find_duplicates
FORGIA #237 — batch duplicate-fact detection. It is categorised as a Read tool in the Verimem MCP Server, which means it retrieves data without modifying state.
Register the Verimem MCP server in PolicyLayer and add a rule for hippo_facts_find_duplicates: 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.
hippo_facts_find_duplicates 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 hippo_facts_find_duplicates 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 hippo_facts_find_duplicates. 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.
hippo_facts_find_duplicates 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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