mocoVoice MCP server が対応している音声・動画ファイル形式を返却する
AI agents call SHOW_AVAILABLE_FORMATS to retrieve information from mocoVoice MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
SHOW_AVAILABLE_FORMATS retrieves and displays metadata about the service's capabilities (supported file formats). It reads configuration or static data and returns it to the user without creating, modifying, deleting, or executing any operations on audio/video files or transcription jobs. This is a straightforward Read category tool with minimal security risk.
From the tool's definition The tool description indicates it 'returns' (返却する) the supported audio and video file formats that mocoVoice supports. This is a pure information retrieval operation with no side effects, modifications, or external operations triggered.
Attacks that exploit this kind of access
mocoVoice MCP server が対応している音声・動画ファイル形式を返却する. It is categorised as a Read tool in the mocoVoice MCP Server MCP Server, which means it retrieves data without modifying state.
Register the mocoVoice MCP Server MCP server in PolicyLayer and add a rule for SHOW_AVAILABLE_FORMATS: 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 mocoVoice MCP Server. Nothing to install.
SHOW_AVAILABLE_FORMATS 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 SHOW_AVAILABLE_FORMATS 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 SHOW_AVAILABLE_FORMATS. 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.
SHOW_AVAILABLE_FORMATS is provided by the mocoVoice MCP Server MCP server (mocomoco-inc/mocovoice-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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