hippo_skills_top_failing
FORGIA #266 — top N skills by failure count.
This record as markdown: /tools/verimem/hippo-skills-top-failing.md
What hippo_skills_top_failing does on Verimem
AI agents call hippo_skills_top_failing 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_top_failing is rated Low
This tool queries and retrieves ranked failure statistics about skills. It performs analysis and reporting on existing data without creating, modifying, deleting, or executing operations. The 'top N' pattern and 'failure count' metric are characteristic of read-only analytics. No arguments suggest external effects or irreversible actions.
From the tool's definition Tool name 'hippo_skills_top_failing' and description 'top N skills by failure count' indicate retrieval and aggregation of metrics data with no modification or side effects.
Attacks that exploit this kind of access
The rule that runs hippo_skills_top_failing 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_top_failing, this is the rule to start with:
hippo_skills_top_failing 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_top_failing call is checked against it from then on.
Questions about hippo_skills_top_failing
FORGIA #266 — top N skills by failure count. 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_top_failing: 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_top_failing 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_top_failing 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_top_failing. 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_top_failing 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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