operationIdからparameters/requestBody/responsesを抜粋
AI agents call api_schemas to retrieve information from ACOMO MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and returns API schema information—it queries existing metadata without modifying, executing, or deleting anything. It is a read-only introspection capability with no side effects. Severity is low because misuse yields only information disclosure of API structure, not unauthorized operations or data access beyond the schema itself.
From the tool's definition Tool extracts operation parameters, request body structure, and response schemas from API definitions via operationId.
Attacks that exploit this kind of access
operationIdからparameters/requestBody/responsesを抜粋. It is categorised as a Read tool in the ACOMO MCP Server MCP Server, which means it retrieves data without modifying state.
Register the ACOMO MCP Server MCP server in PolicyLayer and add a rule for api_schemas: 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 ACOMO MCP Server. Nothing to install.
api_schemas 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 api_schemas 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 api_schemas. 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.
api_schemas is provided by the ACOMO MCP Server MCP server (progress-all/acomo-mcp-server). 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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