Get Base SQL tables, columns, and best practices
AI agents call get_schema to retrieve information from BaseQL MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves schema information (tables, columns, documentation) from the Base blockchain's SQL API. It is purely informational—no data is modified, deleted, or executed.
From the tool's definition Tool name 'get_schema' and description 'Get Base SQL tables, columns, and best practices' indicate retrieval of metadata about database structure with no modification or execution capability.
Attacks that exploit this kind of access
Get Base SQL tables, columns, and best practices. It is categorised as a Read tool in the BaseQL MCP Server MCP Server, which means it retrieves data without modifying state.
Register the BaseQL MCP Server MCP server in PolicyLayer and add a rule for get_schema: 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 BaseQL MCP Server. Nothing to install.
get_schema 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 get_schema 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 get_schema. 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.
get_schema is provided by the BaseQL MCP Server MCP server (jnix2007/baseql-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
get_schema is one line of BaseQL MCP Server's registry record.
The record carries the whole server: verified identity, auth posture, risk grade, every tool classified, recommended policy — re-checked continuously.
Teams ship this data inside their own products. See what a licence covers →