ping_dashboard
Check ESPHome dashboard reachability at ESPHOME_DASHBOARD_URL.
This record as markdown: /tools/fistacho-ha-nexus-agent/ping-dashboard.md
What ping_dashboard does on Ha Nexus Agent
AI agents call ping_dashboard to retrieve information from Ha Nexus Agent without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Why ping_dashboard is rated Low
This tool performs a simple reachability test (ping) to verify if the ESPHome dashboard is accessible. It is a read-only diagnostic operation that queries network availability without side effects, creating no modifications, deletions, or external actions. The blast radius of misuse is minimal—at worst, an agent could repeatedly ping the service, but this poses no data or system integrity risk.
From the tool's definition Tool name 'ping_dashboard' and description 'Check ESPHome dashboard reachability' indicate a network connectivity check operation that retrieves status information without modifying any state.
Attacks that exploit this kind of access
The rule that runs ping_dashboard safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Ha Nexus Agent, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For ping_dashboard, this is the rule to start with:
ping_dashboard 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 Ha Nexus Agent, apply this rule, and every ping_dashboard call is checked against it from then on.
Questions about ping_dashboard
Check ESPHome dashboard reachability at ESPHOME_DASHBOARD_URL. It is categorised as a Read tool in the Ha Nexus Agent MCP Server, which means it retrieves data without modifying state.
Register the Ha Nexus Agent MCP server in PolicyLayer and add a rule for ping_dashboard: 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 Ha Nexus Agent. Nothing to install.
ping_dashboard 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 ping_dashboard 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 ping_dashboard. 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.
ping_dashboard is provided by the Ha Nexus Agent MCP server (fistacho/ha-nexus-agent). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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