hippo_skill_promote_by_threshold
FORGIA #270 — auto-promote candidate skills by
This record as markdown: /tools/verimem/hippo-skill-promote-by-threshold.md
What hippo_skill_promote_by_threshold does on Verimem
AI agents use hippo_skill_promote_by_threshold to create or update resources in Verimem, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Verimem environment.
Why hippo_skill_promote_by_threshold is rated Medium
The 'promote' action modifies agent skill states or configurations in a way that is reversible (skills can be demoted or records corrected), making this a Write operation rather than Read or Destructive. Medium severity reflects potential for AI misuse in inappropriately elevating skills, affecting agent behavior downstream.
From the tool's definition Tool name contains 'promote' and description indicates 'auto-promote candidate skills', which constitutes modification of skill records. The description is truncated ('by' with no completion), limiting certainty about full scope.
Attacks that exploit this kind of access
The rule that runs hippo_skill_promote_by_threshold 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_skill_promote_by_threshold, this is the rule to start with:
hippo_skill_promote_by_threshold stays usable, but capped: an agent stuck in a loop can't make hundreds of changes 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_skill_promote_by_threshold call is checked against it from then on.
Questions about hippo_skill_promote_by_threshold
FORGIA #270 — auto-promote candidate skills by. It is categorised as a Write tool in the Verimem MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Verimem MCP server in PolicyLayer and add a rule for hippo_skill_promote_by_threshold: 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_skill_promote_by_threshold is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the hippo_skill_promote_by_threshold 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_skill_promote_by_threshold. 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_skill_promote_by_threshold 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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