Get a table columns by fully qualified table name.
AI agents call get_table_columns_by_fqn to retrieve information from Mcp Openmetadata 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 (column information) from OpenMetadata without modifying, executing, or deleting any data. It is a straightforward read operation with no side effects. No data is created, modified, executed, or destroyed.
From the tool's definition Tool description states 'Get a table columns' which is a retrieval operation. Context confirms this server 'enables searching and retrieving metadata' with sibling tools like 'get_list_of_tables', 'get_sample_data', and 'search_entities_with_query' all…
Attacks that exploit this kind of access
Get a table columns by fully qualified table name. It is categorised as a Read tool in the Mcp Openmetadata MCP Server, which means it retrieves data without modifying state.
Register the Mcp Openmetadata MCP server in PolicyLayer and add a rule for get_table_columns_by_fqn: 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 Mcp Openmetadata. Nothing to install.
get_table_columns_by_fqn 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_table_columns_by_fqn 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_table_columns_by_fqn. 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_table_columns_by_fqn is provided by the Mcp Openmetadata MCP server (pfldy2850/mcp-openmetadata). 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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