list_hacs_repositories

List HACS repositories, optionally filtered by category (integration, plugin, theme, template, appdaemon, python_script).

SERVERHa Nexus Agent SOURCEfistacho/ha-nexus-agent

Low RISK CLASS

Category Read

Parameters 00 required

Recommended Allowedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/fistacho-ha-nexus-agent/list-hacs-repositories.md

WHAT IT DOES

What list_hacs_repositories does on Ha Nexus Agent

AI agents call list_hacs_repositories 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.

RISK

Why list_hacs_repositories is rated Low

This tool queries and returns a list of Home Assistant Community Store (HACS) repositories with no side effects. It is purely informational, retrieving data about available repositories without creating, modifying, deleting, or executing anything. This is a straightforward Read operation with low risk.

From the tool's definition Tool name 'list_hacs_repositories' and description 'List HACS repositories' indicate a retrieval operation with optional filtering. No modification, deletion, or execution capability is described.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs list_hacs_repositories 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_hacs_repositories, this is the rule to start with:

list_hacs_repositories Allowed

list_hacs_repositories is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "list_hacs_repositories": {}
  }
}

ALLOW ONLY THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Ha Nexus Agent, apply this rule, and every list_hacs_repositories call is checked against it from then on.

FAQ

Questions about list_hacs_repositories

What does the list_hacs_repositories tool do? +

List HACS repositories, optionally filtered by category (integration, plugin, theme, template, appdaemon, python_script). It is categorised as a Read tool in the Ha Nexus Agent MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on list_hacs_repositories? +

Register the Ha Nexus Agent MCP server in PolicyLayer and add a rule for list_hacs_repositories: 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.

What risk level is list_hacs_repositories? +

list_hacs_repositories is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit list_hacs_repositories? +

Yes. Add a rate_limit block to the list_hacs_repositories 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.

How do I block list_hacs_repositories completely? +

Set action: deny in the PolicyLayer policy for list_hacs_repositories. 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.

What MCP server provides list_hacs_repositories? +

list_hacs_repositories 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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