Memory card operations - list, stats, or filter by entity. Memory cards are structured summaries of stored content. Args: file: Path to the .mv2 memory file list: List all memory cards stats: Show memory card statistics entity: Filter cards by entity name Returns: Memory cards matching the criteria
AI agents call memvid_memories to retrieve information from Memvid without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool only retrieves and queries existing memory card data. No arguments permit creation, modification, or deletion. The operations (list, stats, filter) are all read-only queries typical of a data inspection/retrieval tool. The blast radius of misuse is minimal—an agent could only access or enumerate existing memory data, not alter or destroy it.
From the tool's definition Tool performs 'list', 'stats', or 'filter by entity' operations on memory cards. These are query/retrieval operations with no modification or deletion capabilities.
Attacks that exploit this kind of access
Memory card operations - list, stats, or filter by entity. Memory cards are structured summaries of stored content. Args: file: Path to the .mv2 memory file list: List all memory cards stats: Show memory card statistics entity: Filter cards by entity name Returns: Memory cards matching the criteria. It is categorised as a Read tool in the Memvid MCP Server, which means it retrieves data without modifying state.
Register the Memvid MCP server in PolicyLayer and add a rule for memvid_memories: 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 Memvid. Nothing to install.
memvid_memories 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 memvid_memories 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 memvid_memories. 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.
memvid_memories is provided by the Memvid MCP server (tapiocapioca/memvid-mcp). 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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