AI agents call remember_search_internal_memory_by to retrieve information from Remember without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and queries memory data without side effects. It performs a read-only search operation against stored memories, consistent with the Read category (search, list, get, fetch). The severity is low because search operations have minimal blast radius—they only expose data that already exists without altering system state or triggering external actions.
From the tool's definition Tool description states 'Search internal memories' which is a retrieval operation. The verb 'search' and context of 'discovery modes' indicate querying/reading data rather than modifying, executing, or deleting.
Attacks that exploit this kind of access
Search internal memories (ghost or agent) using specialized sort/discovery modes. Automatically scoped to the current session. It is categorised as a Read tool in the Remember MCP Server, which means it retrieves data without modifying state.
Register the Remember MCP server in PolicyLayer and add a rule for remember_search_internal_memory_by: 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 Remember. Nothing to install.
remember_search_internal_memory_by 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 remember_search_internal_memory_by 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 remember_search_internal_memory_by. 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.
remember_search_internal_memory_by is provided by the Remember MCP server (@prmichaelsen/remember-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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