pane_focus · TradingView MCP Jackson MCP: Risk & Policy

WHAT IT DOES

What pane_focus does on TradingView MCP Jackson

AI agents invoke pane_focus to trigger actions in TradingView MCP Jackson. 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 an external UI action (focusing a chart pane) in the TradingView Desktop application via CDP. It doesn't read, write, or destroy data, but it executes an interface interaction. The blast radius is low since focusing a pane is a benign UI state change with minimal consequences if misused.

From the tool's definition 'Focus a specific chart pane by index' — triggers a UI interaction on the TradingView Desktop application via Chrome DevTools Protocol

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 Jackson, 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 Jackson 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 Jackson 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 Jackson. 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 Jackson MCP server (nimit791/tradingview-mcp-jackson). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.