将语音转换为文字并保存为Markdown文件
AI agents call speech_to_text to retrieve information from Think MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Even though speech_to_text 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
将语音转换为文字并保存为Markdown文件. It is categorised as a Read tool in the Think MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Think MCP Server MCP server in PolicyLayer and add a rule for speech_to_text: 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 Think MCP Server. Nothing to install.
speech_to_text 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 speech_to_text 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 speech_to_text. 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.
speech_to_text is provided by the Think MCP Server MCP server (thinkthinking/think-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.