High-level summary of a configured database: object counts (tables/views/procs) and the current user.
AI agents call describe_database to retrieve information from Mssql Mcp Node without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
| Parameter | Type | Required | Description |
|---|---|---|---|
dbKey | string | — | Database key (lowercased). Optional in single-database mode. Call `list_databases` to discover valid keys. |
Parameters from the server's own tool schema.
The tool retrieves and reports descriptive information about a database's structure and permissions. It does not execute commands, modify data, delete data, or trigger external operations. This is purely a metadata read operation with minimal blast radius if misused by an AI agent—it only exposes database structure and user identity information.
From the tool's definition Tool provides a 'High-level summary' of database metadata including 'object counts' and 'current user'. These are read-only informational queries with no modification or execution capabilities.
Attacks that exploit this kind of access
High-level summary of a configured database: object counts (tables/views/procs) and the current user. It is categorised as a Read tool in the Mssql Mcp Node MCP Server, which means it retrieves data without modifying state.
describe_database accepts 1 parameter: dbKey. The full parameter table on this page comes from the server's own tool schema.
Register the Mssql Mcp Node MCP server in PolicyLayer and add a rule for describe_database: 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 Mssql Mcp Node. Nothing to install.
describe_database 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 describe_database 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 describe_database. 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.
describe_database is provided by the Mssql Mcp Node MCP server (mssql-mcp-node). 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 →