Get detailed schema information for a table including column names, types, nullable status, and primary keys.
AI agents call getSchema to retrieve information from MCP Oracle Server 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 introspection tool that queries and returns database schema metadata. It has no side effects on data or database state. The information returned (column names, types, nullability, primary keys) is structural metadata used for understanding table definitions, not for manipulating or executing against data. Even in a production environment, schema inspection carries minimal risk.
From the tool's definition Tool retrieves schema metadata: 'Get detailed schema information for a table including column names, types, nullable status, and primary keys.' Purely informational with no modification, deletion, or execution of operations.
Attacks that exploit this kind of access
Get detailed schema information for a table including column names, types, nullable status, and primary keys. It is categorised as a Read tool in the MCP Oracle Server MCP Server, which means it retrieves data without modifying state.
Register the MCP Oracle Server MCP server in PolicyLayer and add a rule for getSchema: 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 Oracle Server. Nothing to install.
getSchema 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 getSchema 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 getSchema. 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.
getSchema is provided by the MCP Oracle Server MCP server (jaikishpai/mcp-server-nodejs). 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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