tv_launch · TradingView MCP Bridge MCP: Risk & Policy

WHAT IT DOES

What tv_launch does on TradingView MCP Bridge

AI agents invoke tv_launch to trigger actions in TradingView MCP Bridge. 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_launch needs a policy

This tool goes beyond simple data retrieval (Read) or reversible modifications (Write). It launches an external desktop application with debugging capabilities enabled, which is an Execute action that sets up conditions for further programmatic control.

From the tool's definition Tool launches TradingView Desktop with Chrome DevTools Protocol remote debugging enabled, which allows arbitrary code execution and control over the running application.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

tv_launch Rate-limited

tv_launch 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_launch": {
      "limits": [
        {
          "counter": "tv_launch_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 TradingView MCP Bridge, so you can run agents against it safely.

FAQ

Questions about tv_launch

What does the tv_launch tool do? +

Launch TradingView Desktop with Chrome DevTools Protocol (remote debugging) enabled. Auto-detects install location on Mac, Windows, and Linux. It is categorised as a Execute tool in the TradingView MCP Bridge 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_launch? +

Register the TradingView MCP Bridge MCP server in PolicyLayer and add a rule for tv_launch: 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 TradingView MCP Bridge. Nothing to install.

What risk level is tv_launch? +

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

Can I rate-limit tv_launch? +

Yes. Add a rate_limit block to the tv_launch 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_launch completely? +

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

tv_launch is provided by the TradingView MCP Bridge MCP server (thinhbv/tradingview_mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.