chart_set_symbol

Change the chart symbol

SERVERTradingView MCP Server SOURCEdebarpan2000/tradingview-mcp

Medium RISK CLASS

Category Write

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/debarpan2000-tradingview-mcp/chart-set-symbol.md

WHAT IT DOES

What chart_set_symbol does on TradingView MCP Server

AI agents use chart_set_symbol to create or update resources in TradingView MCP Server, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your TradingView MCP Server environment.

RISK

Why chart_set_symbol is rated Medium

This tool writes a new symbol to the chart configuration, changing what is displayed. It is reversible (you can change the symbol back), so it falls under Write rather than Destructive. Misuse could cause confusion or disrupt ongoing analysis workflows, hence medium severity.

From the tool's definition 'Change the chart symbol' — modifies the chart's displayed symbol/instrument

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs chart_set_symbol safely

PolicyLayer is an MCP gateway: it sits between your AI agents and TradingView MCP Server, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For chart_set_symbol, this is the rule to start with:

chart_set_symbol Rate-limited

chart_set_symbol stays usable, but capped: an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "chart_set_symbol": {
      "limits": [
        {
          "counter": "chart_set_symbol_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect TradingView MCP Server, apply this rule, and every chart_set_symbol call is checked against it from then on.

FAQ

Questions about chart_set_symbol

What does the chart_set_symbol tool do? +

Change the chart symbol. It is categorised as a Write tool in the TradingView MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on chart_set_symbol? +

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

What risk level is chart_set_symbol? +

chart_set_symbol is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit chart_set_symbol? +

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

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

chart_set_symbol is provided by the TradingView MCP Server MCP server (debarpan2000/tradingview-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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