get_memento
AI agents call get_memento to retrieve information from MCP Memento without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves stored memento data from a knowledge base with no indication of modification, deletion, or execution capabilities. Empty description reduces confidence slightly, but the 'get_' naming convention and context from related tools (search, analyze, find operations) confirm a read operation with negligible risk.
From the tool's definition Tool name 'get_memento' combined with server context describing 'storing and recalling solutions, facts, and decisions' and sibling tools like 'contextual_memento_search' indicate data retrieval. The 'get_' prefix is a standard retrieval pattern.
Attacks that exploit this kind of access
get_memento. It is categorised as a Read tool in the MCP Memento MCP Server, which means it retrieves data without modifying state.
Register the MCP Memento MCP server in PolicyLayer and add a rule for get_memento: 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 MCP Memento. Nothing to install.
get_memento 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 get_memento 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 get_memento. 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.
get_memento is provided by the MCP Memento MCP server (x-hannibal/mcp-memento). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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