get_lineage
AI agents call get_lineage to retrieve information from DataHub 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 or queries data lineage relationships without modifying, executing, or deleting anything. Data lineage exploration is a foundational Read operation for understanding data flow and dependencies. No side effects on data or systems are implied.
From the tool's definition Tool name 'get_lineage' combined with server's stated capability to 'explore data lineage' indicates retrieval of lineage information.
Attacks that exploit this kind of access
get_lineage. It is categorised as a Read tool in the DataHub MCP Server MCP Server, which means it retrieves data without modifying state.
Register the DataHub MCP Server MCP server in PolicyLayer and add a rule for get_lineage: 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 DataHub MCP Server. Nothing to install.
get_lineage 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_lineage 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_lineage. 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_lineage is provided by the DataHub MCP Server MCP server (shemreader/mcp-server-datahub). 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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