hippo_plan_strips
FORGIA #209 — Pezzo A STRIPS planner. Symbolic chaining
This record as markdown: /tools/verimem/hippo-plan-strips.md
What hippo_plan_strips does on Verimem
AI agents invoke hippo_plan_strips 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_plan_strips is rated High
A STRIPS (Stanford Research Institute Problem Solver) planner performs symbolic action planning and chaining, which falls under Execute as it triggers a sequence of operations derived from its inputs. The description is terse and somewhat uninformative ('FORGIA #209 — Pezzo A'), reducing confidence.
From the tool's definition 'STRIPS planner. Symbolic chaining' — a STRIPS planner generates and executes sequences of symbolic actions (a plan) to achieve goals, which constitutes running a reasoning/execution engine whose effects depend on the plan constructed
Attacks that exploit this kind of access
The rule that runs hippo_plan_strips 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_plan_strips, this is the rule to start with:
hippo_plan_strips 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_plan_strips call is checked against it from then on.
Questions about hippo_plan_strips
FORGIA #209 — Pezzo A STRIPS planner. Symbolic chaining. 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_plan_strips: 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_plan_strips 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_plan_strips 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_plan_strips. 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_plan_strips 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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