Search and retrieve relevant memories from Mnemexa. Use before answering questions about user preferences, past decisions, project context, business facts, or prior conversations. Returns the most relevant stored memory context.
AI agents call brain.recall to retrieve information from Mnemexa MCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool searches and retrieves existing stored memories without modifying, deleting, or executing operations. It has no side effects beyond reading data. The blast radius of misuse is minimal—an agent could retrieve irrelevant or stale memories, but cannot corrupt, destroy, or create new data. Severity is low because memory retrieval errors do not compromise system integrity or cause irreversible harm.
From the tool's definition Tool name 'brain.recall' and description 'Search and retrieve relevant memories from Mnemexa' and 'Returns the most relevant stored memory context' indicate data retrieval only.
Attacks that exploit this kind of access
Search and retrieve relevant memories from Mnemexa. Use before answering questions about user preferences, past decisions, project context, business facts, or prior conversations. Returns the most relevant stored memory context. It is categorised as a Read tool in the Mnemexa MCP MCP Server, which means it retrieves data without modifying state.
Register the Mnemexa MCP server in PolicyLayer and add a rule for brain.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 Mnemexa MCP. Nothing to install.
brain.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 brain.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 brain.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.
brain.recall is provided by the Mnemexa MCP server (mnemexa/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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