gbrain_doctor
Run gbrain health checks. Returns brain health score, embedding coverage,
This record as markdown: /tools/agent-store/gbrain-doctor.md
What gbrain_doctor does on Agent Store
AI agents call gbrain_doctor to retrieve information from Agent Store without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Why gbrain_doctor is rated Low
The tool runs health checks and returns status information (health score, embedding coverage). This is a read-only diagnostic operation with no indication of modifying, executing, or deleting data. Low severity as it only exposes internal health metrics.
From the tool's definition 'Run gbrain health checks. Returns brain health score, embedding coverage' — purely retrieves diagnostic/health information with no side effects
Attacks that exploit this kind of access
The rule that runs gbrain_doctor safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Agent Store, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For gbrain_doctor, this is the rule to start with:
gbrain_doctor is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect Agent Store, apply this rule, and every gbrain_doctor call is checked against it from then on.
Questions about gbrain_doctor
Run gbrain health checks. Returns brain health score, embedding coverage,. It is categorised as a Read tool in the Agent Store MCP Server, which means it retrieves data without modifying state.
Register the Agent Store MCP server in PolicyLayer and add a rule for gbrain_doctor: 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 Agent Store. Nothing to install.
gbrain_doctor 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 gbrain_doctor 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 gbrain_doctor. 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.
gbrain_doctor is provided by the Agent Store MCP server (chrisluersen/agent-store). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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