List all active streams with their stream_ids, kinds, and buffer sizes.
AI agents call stream_list to retrieve information from TradingView MCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool only queries and retrieves information about active streams. It is purely informational—listing streams with their metadata (stream_ids, kinds, buffer sizes) does not modify state, execute code, delete data, or commit financial obligations. The blast radius of misuse is minimal; an agent obtaining this information cannot cause damage beyond information disclosure.
From the tool's definition Tool name 'stream_list' and description 'List all active streams' indicate a retrieval operation with no side effects. No modification, deletion, execution, or financial operations are performed.
Attacks that exploit this kind of access
List all active streams with their stream_ids, kinds, and buffer sizes. It is categorised as a Read tool in the TradingView MCP MCP Server, which means it retrieves data without modifying state.
Register the TradingView MCP server in PolicyLayer and add a rule for stream_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 MCP. Nothing to install.
stream_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 stream_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 stream_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.
stream_list is provided by the TradingView MCP server (ulianbass/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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