pane_focus · TradingView MCP Bridge MCP: Risk & Policy

WHAT IT DOES

What pane_focus does on TradingView MCP Bridge

AI agents invoke pane_focus 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 pane_focus needs a policy

This tool triggers a UI interaction (focusing a pane) in the TradingView Desktop application via Chrome DevTools Protocol. It performs an action/browser operation rather than simply reading data, making it Execute. The blast radius is low as focusing a pane has no destructive or financial consequences.

From the tool's definition Focus a specific chart pane by index (0-based)

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

pane_focus Rate-limited

pane_focus 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": {
    "pane_focus": {
      "limits": [
        {
          "counter": "pane_focus_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 pane_focus

What does the pane_focus tool do? +

Focus a specific chart pane by index (0-based). 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 pane_focus? +

Register the TradingView MCP Bridge MCP server in PolicyLayer and add a rule for pane_focus: 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 pane_focus? +

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

Can I rate-limit pane_focus? +

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

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

pane_focus 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.