hippo_anchor_set

P3 minimal — crea o aggiorna un anchor entity per il

SERVERVerimem SOURCEaureliocpr-ctrl/verimem

Medium RISK CLASS

Category Write

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/verimem/hippo-anchor-set.md

WHAT IT DOES

What hippo_anchor_set does on Verimem

AI agents use hippo_anchor_set 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.

RISK

Why hippo_anchor_set is rated Medium

This tool creates or updates anchor entities in a bi-temporal memory system. Creating or updating data is inherently a Write operation. The severity is medium because: (1) the action is reversible (can update/correct records), (2) it operates within a memory management context with GDPR-grade controls per the server description, and (3) the blast radius of misuse is limited to anchor entity metadata rather than…

From the tool's definition Tool description states 'crea o aggiorna' (create or update) an anchor entity, indicating reversible data modification. The tool name 'hippo_anchor_set' is consistent with setting/writing state.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs hippo_anchor_set 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_anchor_set, this is the rule to start with:

hippo_anchor_set Rate-limited

hippo_anchor_set 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.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "hippo_anchor_set": {
      "limits": [
        {
          "counter": "hippo_anchor_set_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Verimem, apply this rule, and every hippo_anchor_set call is checked against it from then on.

FAQ

Questions about hippo_anchor_set

What does the hippo_anchor_set tool do? +

P3 minimal — crea o aggiorna un anchor entity per il. 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.

How do I enforce a policy on hippo_anchor_set? +

Register the Verimem MCP server in PolicyLayer and add a rule for hippo_anchor_set: 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.

What risk level is hippo_anchor_set? +

hippo_anchor_set is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit hippo_anchor_set? +

Yes. Add a rate_limit block to the hippo_anchor_set 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.

How do I block hippo_anchor_set completely? +

Set action: deny in the PolicyLayer policy for hippo_anchor_set. 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.

What MCP server provides hippo_anchor_set? +

hippo_anchor_set 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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