Look up a family member or close personal contact. Fuzzy-matches by name or relationship. Returns birthday (with days-until), sizes, allergies, interests, and notes.
AI agents call family_member to retrieve information from Personal Brain 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 personal data about family members without any write, delete, or execute capabilities. The fuzzy-name matching is a search/lookup function typical of Read category tools. The blast radius is limited to information disclosure of personal data already stored in the user's own database.
From the tool's definition Tool performs 'look up' and 'returns' personal contact information (birthday, sizes, allergies, interests, notes) with no modification capability indicated. No mutations, deletions, or external operations are described.
Attacks that exploit this kind of access
Look up a family member or close personal contact. Fuzzy-matches by name or relationship. Returns birthday (with days-until), sizes, allergies, interests, and notes. It is categorised as a Read tool in the Personal Brain MCP Server, which means it retrieves data without modifying state.
Register the Personal Brain MCP server in PolicyLayer and add a rule for family_member: 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 Personal Brain. Nothing to install.
family_member 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 family_member 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 family_member. 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.
family_member is provided by the Personal Brain MCP server (phantomts/personal-brain-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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