list_todo_lists

List all todo.* entities currently registered in HA.

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-todo-lists.md

WHAT IT DOES

What list_todo_lists does on Ha Nexus Agent

AI agents call list_todo_lists 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_todo_lists is rated Low

This tool retrieves and enumerates existing todo list entities from Home Assistant. It performs no creation, modification, deletion, or execution of external operations—purely informational querying. The blast radius of misuse is minimal: an agent could learn what todo lists exist but cannot alter them or trigger actions. Classification as Read is appropriate.

From the tool's definition Tool name 'list_todo_lists' and description 'List all `todo.*` entities currently registered in HA' indicate a query operation that retrieves data without modification or side effects.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs list_todo_lists 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_todo_lists, this is the rule to start with:

list_todo_lists Allowed

list_todo_lists 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_todo_lists": {}
  }
}

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_todo_lists call is checked against it from then on.

FAQ

Questions about list_todo_lists

What does the list_todo_lists tool do? +

List all todo.* entities currently registered in HA. 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_todo_lists? +

Register the Ha Nexus Agent MCP server in PolicyLayer and add a rule for list_todo_lists: 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_todo_lists? +

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

Can I rate-limit list_todo_lists? +

Yes. Add a rate_limit block to the list_todo_lists 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_todo_lists completely? +

Set action: deny in the PolicyLayer policy for list_todo_lists. 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_todo_lists? +

list_todo_lists 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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