list_style_categories
List CSS style categories with their property names and unit conventions.
This record as markdown: /tools/fistacho-ha-nexus-agent/list-style-categories.md
What list_style_categories does on Ha Nexus Agent
AI agents call list_style_categories 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 list_style_categories is rated Low
This tool retrieves and displays CSS style metadata (categories, properties, units). It performs no write, delete, execute, or financial operations. It is a read-only query of style information, analogous to documentation or configuration lookup. The low severity reflects minimal blast radius—misuse could only surface information already present in the system.
From the tool's definition Tool name 'list_style_categories' and description 'List CSS style categories with their property names and unit conventions' indicate retrieval of configuration or reference data without modification or side effects.
Attacks that exploit this kind of access
The rule that runs list_style_categories 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 list_style_categories, this is the rule to start with:
list_style_categories 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 list_style_categories call is checked against it from then on.
Questions about list_style_categories
List CSS style categories with their property names and unit conventions. 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 list_style_categories: 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.
list_style_categories 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 list_style_categories 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 list_style_categories. 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.
list_style_categories 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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