Get major stockholding disclosure reports (5%+ ownership changes). Args: - corp_code: 8-digit company code
AI agents call opendart_major_stockholding to retrieve information from OpenDART MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries publicly disclosed financial information (major stockholding reports from Korean FSS filings) and returns data without side effects. No data is created, modified, deleted, or executed. The blast radius of misuse is minimal—an agent could only retrieve disclosure information already public in the DART system. Classified as Read rather than Other due to clear data retrieval purpose.
From the tool's definition Tool retrieves stockholding disclosure reports; described as 'Get' operation with no modification, deletion, or execution capability. Takes only corp_code as input, which constrains functionality to lookups.
Attacks that exploit this kind of access
Get major stockholding disclosure reports (5%+ ownership changes). Args: - corp_code: 8-digit company code. It is categorised as a Read tool in the OpenDART MCP Server MCP Server, which means it retrieves data without modifying state.
Register the OpenDART MCP Server MCP server in PolicyLayer and add a rule for opendart_major_stockholding: 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 OpenDART MCP Server. Nothing to install.
opendart_major_stockholding 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 opendart_major_stockholding 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 opendart_major_stockholding. 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.
opendart_major_stockholding is provided by the OpenDART MCP Server MCP server (procpalee/opendart-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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