hippo_find_cross_domain_schemas
FORGIA #293 — Round 9: hierarchical abstraction.
This record as markdown: /tools/verimem/hippo-find-cross-domain-schemas.md
What hippo_find_cross_domain_schemas does on Verimem
AI agents call hippo_find_cross_domain_schemas 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_find_cross_domain_schemas is rated Low
The tool appears to retrieve or discover schema information across domains within the memory system. 'Find' is fundamentally a read operation with no indicated side effects. The lack of descriptive detail (cryptic reference 'FORGIA #293 — Round 9') lowers confidence slightly, but the verb 'find' and the domain schema discovery purpose are consistent with Read category semantics.
From the tool's definition Tool name indicates 'find' operation which is a retrieval/search action. Description mentions 'hierarchical abstraction' suggesting schema discovery or querying across domains. No mutations, deletions, execution of code, or financial operations are implied.
Attacks that exploit this kind of access
The rule that runs hippo_find_cross_domain_schemas 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_find_cross_domain_schemas, this is the rule to start with:
hippo_find_cross_domain_schemas 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_find_cross_domain_schemas call is checked against it from then on.
Questions about hippo_find_cross_domain_schemas
FORGIA #293 — Round 9: hierarchical abstraction. 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_find_cross_domain_schemas: 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_find_cross_domain_schemas 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_find_cross_domain_schemas 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_find_cross_domain_schemas. 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_find_cross_domain_schemas 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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