hippo_chain_render
FORGIA #242 — render a STRIPS skill chain as
This record as markdown: /tools/verimem/hippo-chain-render.md
What hippo_chain_render does on Verimem
AI agents call hippo_chain_render 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_chain_render is rated Low
This tool retrieves and formats an existing skill chain for display purposes. There are no side effects, no data modification, no code execution, and no irreversible operations. It is a read-only transformation that presents information.
From the tool's definition Tool name contains 'render' and description indicates it outputs/displays a STRIPS skill chain without modifying data.
Attacks that exploit this kind of access
The rule that runs hippo_chain_render 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_chain_render, this is the rule to start with:
hippo_chain_render 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_chain_render call is checked against it from then on.
Questions about hippo_chain_render
FORGIA #242 — render a STRIPS skill chain as. 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_chain_render: 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_chain_render 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_chain_render 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_chain_render. 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_chain_render 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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