Get a list of all tables in the database along with their column information. Use this first to understand the database structure before querying.
AI agents call listTables to retrieve information from My Credentials MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool only retrieves and displays structural information about the database (table names and columns). It performs no data modifications, deletions, code execution, or financial operations. The blast radius of misuse is minimal—an attacker gains awareness of database structure but cannot alter or access sensitive data through this tool alone.
From the tool's definition Tool name is 'listTables' and description states 'Get a list of all tables in the database along with their column information.' This is a query operation that retrieves schema metadata with no modifications or side effects.
Attacks that exploit this kind of access
Get a list of all tables in the database along with their column information. Use this first to understand the database structure before querying. It is categorised as a Read tool in the My Credentials MCP Server MCP Server, which means it retrieves data without modifying state.
Register the My Credentials MCP Server MCP server in PolicyLayer and add a rule for listTables: 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 My Credentials MCP Server. Nothing to install.
listTables 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 listTables 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 listTables. 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.
listTables is provided by the My Credentials MCP Server MCP server (preangelleo/my-credentials-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.
Teams ship this data inside their own products. See what a licence covers →