GET /api/health — hub liveness and dependency checks.
AI agents call kya_health to retrieve information from UMBRAXON/kya Hub without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves health/status information from the KYA-Hub API without side effects. It is a simple GET request that returns the state of the hub and its dependencies. No data is modified, deleted, or executed. This is a standard health-check operation with minimal blast radius if misused by an agent.
From the tool's definition GET /api/health — hub liveness and dependency checks. Tool performs a read-only query to fetch health status with no modification or execution capability.
Attacks that exploit this kind of access
GET /api/health — hub liveness and dependency checks. It is categorised as a Read tool in the UMBRAXON/kya Hub MCP Server, which means it retrieves data without modifying state.
Register the UMBRAXON/kya Hub MCP server in PolicyLayer and add a rule for kya_health: 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 UMBRAXON/kya Hub. Nothing to install.
kya_health 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 kya_health 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 kya_health. 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.
kya_health is provided by the UMBRAXON/kya Hub MCP server (umbraxon/kya-hub). 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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