hippo_skills_derive_predicates_batch
FORGIA #215 — batch predicate derivation. Runs the
This record as markdown: /tools/verimem/hippo-skills-derive-predicates-batch.md
What hippo_skills_derive_predicates_batch does on Verimem
AI agents invoke hippo_skills_derive_predicates_batch to trigger actions in Verimem. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call: builds kicked off, notifications sent, workflows started.
Why hippo_skills_derive_predicates_batch is rated High
The tool runs a batch derivation process (computing/inferring predicates), which constitutes execution of logic/computation rather than a simple read or write. The description is truncated so full scope is unclear, lowering confidence. No evidence of financial transactions, destructive operations, or purely passive data retrieval.
From the tool's definition 'batch predicate derivation' and 'Runs the' (description appears truncated) — implies executing a derivation/inference process over a batch of inputs
Attacks that exploit this kind of access
The rule that runs hippo_skills_derive_predicates_batch 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_skills_derive_predicates_batch, this is the rule to start with:
hippo_skills_derive_predicates_batch stays usable, but rate-capped: a runaway agent can't fire it dozens of times a minute. 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_skills_derive_predicates_batch call is checked against it from then on.
Questions about hippo_skills_derive_predicates_batch
FORGIA #215 — batch predicate derivation. Runs the. It is categorised as a Execute tool in the Verimem MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.
Register the Verimem MCP server in PolicyLayer and add a rule for hippo_skills_derive_predicates_batch: 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_skills_derive_predicates_batch is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.
Yes. Add a rate_limit block to the hippo_skills_derive_predicates_batch 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_skills_derive_predicates_batch. 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_skills_derive_predicates_batch 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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