Returns the field tree of one data model: field names, types, required flags (marked with *) and
AI agents call get_schema 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 information (field names, types, required flags) from the Toss Securities Open API. It performs a read-only operation on API metadata without any side effects, modifications, or code execution. The tool is informational in nature, supporting API exploration and documentation.
From the tool's definition Tool name 'get_schema' and description 'Returns the field tree of one data model' indicate retrieval of metadata about data structures with no modification or execution capability.
Attacks that exploit this kind of access
Returns the field tree of one data model: field names, types, required flags (marked with *) and. 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 get_schema: 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.
get_schema 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 get_schema 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 get_schema. 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.
get_schema 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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