Describe columnas, PK, FK e índices de una tabla.
AI agents call sql_describe_table to retrieve information from MCP SQL Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool only queries and returns schema information about a table's structure (columns, constraints, indices). It performs no side effects, data modification, code execution, or deletion. It is a read-only schema exploration operation, consistent with the server's stated purpose of 'schema exploration' with 'safety controls against destructive operations.'
From the tool's definition Tool name 'sql_describe_table' and description 'Describe columnas, PK, FK e índices de una tabla' (columns, primary keys, foreign keys, and indices) indicates it retrieves metadata about table structure without modifying or executing arbitrary operations.
Attacks that exploit this kind of access
Describe columnas, PK, FK e índices de una tabla. It is categorised as a Read tool in the MCP SQL Server MCP Server, which means it retrieves data without modifying state.
Register the MCP SQL Server MCP server in PolicyLayer and add a rule for sql_describe_table: 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 SQL Server. Nothing to install.
sql_describe_table 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 sql_describe_table 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 sql_describe_table. 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.
sql_describe_table is provided by the MCP SQL Server MCP server (miguel1603/mcp-sql). 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.
Teams ship this data inside their own products. See what a licence covers →