hippo_transcript_recall
Pull-only recall over the RAW conversational transcript
This record as markdown: /tools/verimem/hippo-transcript-recall.md
What hippo_transcript_recall does on Verimem
AI agents call hippo_transcript_recall 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_transcript_recall is rated Low
This tool retrieves historical conversational transcript data without side effects. 'Pull-only' explicitly constrains the operation to retrieval. No write, execute, or destructive operations are described or implied. The low severity reflects minimal blast radius: even if an AI agent misuses transcript recall, it can only access existing conversation history without modifying systems or data.
From the tool's definition Tool name includes 'recall' and description states 'Pull-only recall over the RAW conversational transcript' — indicates read-only retrieval of existing conversation data with no modification, deletion, or execution capability.
Attacks that exploit this kind of access
The rule that runs hippo_transcript_recall 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_transcript_recall, this is the rule to start with:
hippo_transcript_recall 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_transcript_recall call is checked against it from then on.
Questions about hippo_transcript_recall
Pull-only recall over the RAW conversational transcript. 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_transcript_recall: 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_transcript_recall 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_transcript_recall 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_transcript_recall. 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_transcript_recall 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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