Lista todas las tablas disponibles para el usuario actual
AI agents call list_tables 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 tool retrieves schema metadata (table names) without side effects. It is purely informational and cannot modify, execute code, delete, or affect financial systems. The read-only nature and metadata-retrieval purpose clearly place it in the Read category with low severity, as accidental misuse would only expose existing schema information.
From the tool's definition Tool description states "Lista todas las tablas disponibles" (lists all available tables); server description emphasizes "read-only access" and "executing SELECT queries"; the tool performs a query operation that retrieves metadata without modifying data.
Attacks that exploit this kind of access
Lista todas las tablas disponibles para el usuario actual. 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 list_tables: 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.
list_tables 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 list_tables 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 list_tables. 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.
list_tables is provided by the MCP Oracle Server MCP server (yrsonhtm/mcp-oracle-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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