High Risk →

ui_scroll

Scroll the chart or page up/down/left/right

How to control ui_scroll ↓

AI agents invoke ui_scroll 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.

High Risk

This tool triggers a UI interaction (scrolling) within the TradingView Desktop application via Chrome DevTools Protocol. It performs a browser/application action rather than just reading data or writing/deleting persistent state. The blast radius is low since scrolling only changes the viewport and does not modify, delete, or create any data.

From the tool's definition Scroll the chart or page up/down/left/right

Documented attack patterns abuse exactly the kind of access ui_scroll gives an agent:

PolicyLayer is an MCP gateway — it sits between your AI agents and TradingView MCP Bridge, and nothing reaches the server without passing your rules. This is the rule we recommend for ui_scroll:

policy.json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "ui_scroll": {
      "limits": [
        {
          "counter": "ui_scroll_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

ui_scroll 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.

  1. Create a free account and register TradingView MCP Bridge — nothing to install.
  2. Add this policy — paste it, or build it visually.
  3. Point your MCP client (Claude, Cursor, anything) at your gateway URL.
RATE-LIMIT THIS TOOL →

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Go deeper

What does the ui_scroll tool do? +

Scroll the chart or page up/down/left/right. 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 ui_scroll? +

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

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

Can I rate-limit ui_scroll? +

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

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

ui_scroll is provided by the TradingView MCP Bridge MCP server (tradesdontlie/tradingview-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every TradingView MCP Bridge tool call.

Deterministic rules across all 78 TradingView MCP Bridge tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.

Free to start. No card required.

78 TradingView MCP Bridge tools catalogued and risk-classified — across an index of 42,500+ MCP servers.

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