This record as markdown: /tools/bybit-exchange-trading-mcp/subscribeexecutionfast.md
What subscribeExecutionFast does on Bybit MCP Server
AI agents call subscribeExecutionFast to retrieve information from Bybit MCP Server without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Why subscribeExecutionFast is rated Low
The tool subscribes to a real-time WebSocket stream for fast execution updates. Subscribing to a data feed is a read operation with no side effects — it only receives data. The authentication requirement ('需要鉴权') suggests it accesses private account data, but doesn't modify anything. Severity is low as misuse only exposes trade execution data.
From the tool's definition 订阅快速成交推送 — 'subscribe' and 'push notification' indicate this is a read/stream operation that listens for execution events
Attacks that exploit this kind of access
The rule that runs subscribeExecutionFast safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Bybit MCP Server, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For subscribeExecutionFast, this is the rule to start with:
subscribeExecutionFast is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect Bybit MCP Server, apply this rule, and every subscribeExecutionFast call is checked against it from then on.
Questions about subscribeExecutionFast
订阅快速成交推送(需要鉴权). It is categorised as a Read tool in the Bybit MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Bybit MCP Server MCP server in PolicyLayer and add a rule for subscribeExecutionFast: 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 Bybit MCP Server. Nothing to install.
subscribeExecutionFast 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 subscribeExecutionFast 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 subscribeExecutionFast. 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.
subscribeExecutionFast is provided by the Bybit MCP Server MCP server (bybit-exchange/trading-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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