List all open TradingView chart tabs
AI agents call tab_list 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.
This tool performs a read-only operation—it enumerates existing UI state (open tabs) without side effects. It has minimal blast radius; an AI agent could at worst gather information about which charts are open, which poses no security or operational risk. The operation is clearly informational and non-destructive.
From the tool's definition Tool name 'tab_list' and description 'List all open TradingView chart tabs' indicate a query operation that retrieves information about currently open tabs without modifying, deleting, or executing any operations.
Attacks that exploit this kind of access
List all open TradingView chart tabs. 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 tab_list: 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.
tab_list 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 tab_list 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 tab_list. 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.
tab_list is provided by the Tradingview MCP server (lionfaion/tradingview-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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