hippo_skills_dot
FORGIA #219 — Graphviz DOT export of the skill
This record as markdown: /tools/verimem/hippo-skills-dot.md
What hippo_skills_dot does on Verimem
AI agents call hippo_skills_dot 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_skills_dot is rated Low
This tool retrieves and serializes skill information into a standard graph visualization format. It has no side effects, does not modify state, execute code, delete data, or move resources. It is a pure read operation that formats existing data for visualization purposes.
From the tool's definition Tool exports existing skill data as Graphviz DOT format (a read/visualization operation). The description 'Graphviz DOT export of the skill' indicates retrieval and formatting of data without modification, deletion, or execution of external code.
Attacks that exploit this kind of access
The rule that runs hippo_skills_dot 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_dot, this is the rule to start with:
hippo_skills_dot 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_skills_dot call is checked against it from then on.
Questions about hippo_skills_dot
FORGIA #219 — Graphviz DOT export of the skill. 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_skills_dot: 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_dot 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_skills_dot 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_dot. 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_dot 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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