hippo_self_model_get
CYCLE #67 (2026-05-14) — read the persistent self-model
This record as markdown: /tools/verimem/hippo-self-model-get.md
What hippo_self_model_get does on Verimem
AI agents call hippo_self_model_get 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_self_model_get is rated Low
This tool retrieves stored self-model data from a persistent memory system. The verb 'read' and the 'get' operation are unambiguous indicators of a Read category tool. There is no indication of data modification, deletion, code execution, or financial operations.
From the tool's definition Tool name contains 'get' and description states 'read the persistent self-model' — both indicate a retrieval operation with no modification or side effects.
Attacks that exploit this kind of access
The rule that runs hippo_self_model_get 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_self_model_get, this is the rule to start with:
hippo_self_model_get 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_self_model_get call is checked against it from then on.
Questions about hippo_self_model_get
CYCLE #67 (2026-05-14) — read the persistent self-model. 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_self_model_get: 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_self_model_get 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_self_model_get 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_self_model_get. 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_self_model_get 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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