Get the visible date range (unix timestamps) and bars range on the chart
AI agents call chart_get_visible_range to retrieve information from TradingView MCP Bridge without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries and retrieves the current visible range on a TradingView chart—a read-only operation that returns chart metadata (timestamps and bar counts). It has no side effects, does not modify data, does not execute code, and does not trigger financial transactions. The blast radius of misuse is minimal; an agent retrieving chart range data cannot cause harm.
From the tool's definition Tool name 'chart_get_visible_range' and description 'Get the visible date range (unix timestamps) and bars range on the chart' indicate retrieval of chart state information with no modification or execution of external operations.
Attacks that exploit this kind of access
Get the visible date range (unix timestamps) and bars range on the chart. It is categorised as a Read tool in the TradingView MCP Bridge MCP Server, which means it retrieves data without modifying state.
Register the TradingView MCP Bridge MCP server in PolicyLayer and add a rule for chart_get_visible_range: 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.
chart_get_visible_range 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 chart_get_visible_range 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 chart_get_visible_range. 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.
chart_get_visible_range is provided by the TradingView MCP Bridge MCP server (thinhbv/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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