Read a small sample of rows from a table. This is capped for AI-safe exploration.
AI agents call sample_rows to retrieve information from MCP Server MySQL without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves data from a table without modifying, deleting, or executing arbitrary operations. The description emphasizes safe exploration with capped result sizes, making it a straightforward Read operation with minimal risk of misuse.
From the tool's definition Tool name 'sample_rows' and description 'Read a small sample of rows from a table' explicitly indicate a read-only operation with built-in safety caps ('capped for AI-safe exploration').
Attacks that exploit this kind of access
Read a small sample of rows from a table. This is capped for AI-safe exploration. It is categorised as a Read tool in the MCP Server MySQL MCP Server, which means it retrieves data without modifying state.
Register the MCP Server MySQL MCP server in PolicyLayer and add a rule for sample_rows: 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 Server MySQL. Nothing to install.
sample_rows 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 sample_rows 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 sample_rows. 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.
sample_rows is provided by the MCP Server MySQL MCP server (nilsir/mcp-server-mysql). 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 →