Lists the data model (schema) names defined by the API. Pass
AI agents call list_schemas to retrieve information from Tossinvest Openapi without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves schema metadata from the API documentation without modifying, executing, or deleting anything. It is a read-only information discovery operation, similar to 'list_endpoints' and 'list_categories' on the same server. The blast radius of misuse is minimal—an agent can only view available schemas, not alter or act upon them.
From the tool's definition Tool name 'list_schemas' and description 'Lists the data model (schema) names defined by the API' indicate a query/retrieval operation with no side effects.
Attacks that exploit this kind of access
Lists the data model (schema) names defined by the API. Pass. It is categorised as a Read tool in the Tossinvest Openapi MCP Server, which means it retrieves data without modifying state.
Register the Tossinvest Openapi MCP server in PolicyLayer and add a rule for list_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 Tossinvest Openapi. Nothing to install.
list_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 list_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 list_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.
list_schemas is provided by the Tossinvest Openapi MCP server (jeongseongmok/tossinvest-openapi-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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