Look up specific symbols (stocks, indexes, ETFs) by ticker. Use this for direct symbol lookup including market indexes like TVC:SPX, TVC:DJI, OMXSTO:OMXS30 that cannot be found via screening. Returns comprehensive data including ATH, 52-week highs/lows.
AI agents call lookup_symbols to retrieve information from Tradingview without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Even though lookup_symbols only reads data, uncontrolled read access leaks sensitive information and racks up API costs — an agent caught in a retry loop can make thousands of calls a minute without anyone noticing.
Attacks that exploit this kind of access
Look up specific symbols (stocks, indexes, ETFs) by ticker. Use this for direct symbol lookup including market indexes like TVC:SPX, TVC:DJI, OMXSTO:OMXS30 that cannot be found via screening. Returns comprehensive data including ATH, 52-week highs/lows. It is categorised as a Read tool in the Tradingview MCP Server, which means it retrieves data without modifying state.
Register the Tradingview MCP server in PolicyLayer and add a rule for lookup_symbols: 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. Nothing to install.
lookup_symbols is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the lookup_symbols 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.
Set action: deny in the PolicyLayer policy for lookup_symbols. 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.
lookup_symbols is provided by the Tradingview MCP server (tradingview-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.