取得資料集 metadata 與欄位 schema;sample_rows>0 時附抽樣資料列。
AI agents call get_dataset to retrieve information from Healthcare OpenData MCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This is a read-only operation that retrieves structural information about datasets and sample data. It has no side effects, does not execute code or commands, and does not modify or delete any data. The blast radius of misuse is minimal—an AI agent could only over-query or extract public healthcare metadata, which poses no integrity or confidentiality risks beyond normal data access controls.
From the tool's definition Tool name 'get_dataset' and description indicate retrieval of dataset metadata, field schema, and optionally sample rows. Description states '取得資料集 metadata 與欄位 schema' (retrieve dataset metadata and field schema) with conditional sample data.
Attacks that exploit this kind of access
取得資料集 metadata 與欄位 schema;sample_rows>0 時附抽樣資料列。. It is categorised as a Read tool in the Healthcare OpenData MCP MCP Server, which means it retrieves data without modifying state.
Register the Healthcare OpenData MCP server in PolicyLayer and add a rule for get_dataset: 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 Healthcare OpenData MCP. Nothing to install.
get_dataset 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_dataset 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_dataset. 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_dataset is provided by the Healthcare OpenData MCP server (trionnemesis/healthcare-opendata-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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