Check if the qontinui-runner is running and accessible.
AI agents call ui_health to retrieve information from UI Bridge MCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool performs a diagnostic query to determine the operational state of the qontinui-runner service. It retrieves information about system availability without modifying, executing code, deleting data, or committing financial actions. The blast radius of misuse is minimal—an AI agent cannot cause harm by checking runner status.
From the tool's definition Tool name 'ui_health' and description 'Check if the qontinui-runner is running and accessible' indicate a status check operation with no side effects. The verb 'check' and the focus on querying accessibility status are characteristic of Read operations.
Attacks that exploit this kind of access
Check if the qontinui-runner is running and accessible. It is categorised as a Read tool in the UI Bridge MCP MCP Server, which means it retrieves data without modifying state.
Register the UI Bridge MCP server in PolicyLayer and add a rule for ui_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 UI Bridge MCP. Nothing to install.
ui_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 ui_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 ui_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.
ui_health is provided by the UI Bridge MCP server (qontinui/ui-bridge-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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