List all tables accessible to the current user, optionally filtered by schema/owner.
AI agents call list_tables to retrieve information from Oracle Sqlplus without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
The tool queries metadata about available tables without modifying any data or executing arbitrary operations. It is purely informational, returning schema information that helps users understand database structure.
From the tool's definition Tool name 'list_tables' and description explicitly states it 'List[s] all tables accessible to the current user' with optional filtering. This is a retrieval operation with no modification, deletion, or execution of code.
Attacks that exploit this kind of access
List all tables accessible to the current user, optionally filtered by schema/owner. It is categorised as a Read tool in the Oracle Sqlplus MCP Server, which means it retrieves data without modifying state.
Register the Oracle Sqlplus 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 Oracle Sqlplus. 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 Oracle Sqlplus MCP server (sagar1012/oracle-sqlplus-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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