tuya_set_color_temperature · Tuya MCP: Risk & Policy

WHAT IT DOES

What tuya_set_color_temperature does on Tuya

AI agents use tuya_set_color_temperature to create or update resources in Tuya — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Tuya environment.

WHY IT NEEDS A POLICY

Why tuya_set_color_temperature needs a policy

This tool modifies a smart home device's color temperature setting. It creates a reversible state change (color temperature can be changed again), making it a Write operation. The blast radius is low as it only affects lighting aesthetics with no data loss, financial, or destructive consequences.

From the tool's definition Set the color temperature of a Tuya light by device_id or name

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

tuya_set_color_temperature Rate-limited

tuya_set_color_temperature stays usable, but capped — an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "tuya_set_color_temperature": {
      "limits": [
        {
          "counter": "tuya_set_color_temperature_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches Tuya, so you can run agents against it safely.

FAQ

Questions about tuya_set_color_temperature

What does the tuya_set_color_temperature tool do? +

Set the color temperature of a Tuya light by device_id or name (e.g. 'Living Room Light'). temperature must be between 0 (warm white) and 1000 (cool white). It is categorised as a Write tool in the Tuya MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on tuya_set_color_temperature? +

Register the Tuya MCP server in PolicyLayer and add a rule for tuya_set_color_temperature: 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 Tuya. Nothing to install.

What risk level is tuya_set_color_temperature? +

tuya_set_color_temperature is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit tuya_set_color_temperature? +

Yes. Add a rate_limit block to the tuya_set_color_temperature 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 tuya_set_color_temperature completely? +

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

tuya_set_color_temperature is provided by the Tuya MCP server (juanmartinsantos/mcp-server-tuya). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.