What getMemos does on Memo
AI agents call getMemos to retrieve information from Memo without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Why getMemos is rated Low
This tool retrieves all memos from the database without side effects. It is a straightforward read operation that queries existing data. The severity is low because retrieval alone poses minimal risk unless the memos contain sensitive information, but the action itself is non-destructive and reversible by nature.
From the tool's definition Tool name 'getMemos' and description 'Get all memos' indicate a retrieval operation with no modification or deletion of data.
Attacks that exploit this kind of access
The rule that runs getMemos safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Memo, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For getMemos, this is the rule to start with:
getMemos 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 Memo, apply this rule, and every getMemos call is checked against it from then on.
Questions about getMemos
Get all memos. It is categorised as a Read tool in the Memo MCP Server, which means it retrieves data without modifying state.
Register the Memo MCP server in PolicyLayer and add a rule for getMemos: 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 Memo. Nothing to install.
getMemos 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 getMemos 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 getMemos. 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.
getMemos is provided by the Memo MCP server (108yen/memo-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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