tv_send_text · Smart Home Control MCP Server MCP

WHAT IT DOES

What tv_send_text does on Smart Home Control MCP Server

AI agents invoke tv_send_text to trigger actions in Smart Home Control MCP Server. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call — builds kicked off, notifications sent, workflows started.

WHY IT NEEDS A POLICY

Why tv_send_text needs a policy

This tool sends text input directly to a TV device via ADB, triggering an external operation on the TV (e.g., populating search fields or other text inputs). It goes beyond reading or simple data writing — it executes an action on an external device whose effects depend on the arguments. Misuse could involve sending unintended text to active search or input fields on the TV.

From the tool's definition Send text input to TV (useful for search fields)

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

tv_send_text Rate-limited

tv_send_text stays usable, but rate-capped — a runaway agent can't fire it dozens of times a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "tv_send_text": {
      "limits": [
        {
          "counter": "tv_send_text_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

RATE-LIMIT THIS TOOL →

Instant setup, no code required.

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

FAQ

Questions about tv_send_text

What does the tv_send_text tool do? +

Send text input to TV (useful for search fields). It is categorised as a Execute tool in the Smart Home Control MCP Server MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on tv_send_text? +

Register the Smart Home Control MCP Server MCP server in PolicyLayer and add a rule for tv_send_text: 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 Smart Home Control MCP Server. Nothing to install.

What risk level is tv_send_text? +

tv_send_text is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.

Can I rate-limit tv_send_text? +

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

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

tv_send_text is provided by the Smart Home Control MCP Server MCP server (surya443/smart-home-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.