lvgl_validate
Validate LVGL config client-side: unique widget/page IDs, valid page references.
This record as markdown: /tools/fistacho-ha-nexus-agent/lvgl-validate.md
What lvgl_validate does on Ha Nexus Agent
AI agents call lvgl_validate 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 lvgl_validate is rated Low
This is a validation/inspection tool that reads configuration data to check for consistency and correctness. It performs no side effects, creates no resources, executes no external operations, and cannot modify or delete data. The blast radius of misuse is minimal—at worst it could validate incorrect configurations, but validation failures do not cause system changes.
From the tool's definition Tool name 'lvgl_validate' and description indicate it performs validation checks on LVGL (Light and Versatile Graphics Library) configuration data, specifically checking for unique widget/page IDs and valid page references.
Attacks that exploit this kind of access
The rule that runs lvgl_validate 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 lvgl_validate, this is the rule to start with:
lvgl_validate 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 lvgl_validate call is checked against it from then on.
Questions about lvgl_validate
Validate LVGL config client-side: unique widget/page IDs, valid page references. 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 lvgl_validate: 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.
lvgl_validate 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 lvgl_validate 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 lvgl_validate. 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.
lvgl_validate 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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