# AI Tools

This topic describes global settings for AI access to database data and schema. When enabled, these settings allow AI agents and LLMs to read or modify database data and schema in all databases without confirmation.

These permissions can be required for the [database-specific tools](mcp-server.html#database_specific_tools) to work properly.

Read database data
: Allows running commands that read database data, and send the results to an AI agent. For example, the client can run `SELECT` queries.

Modify database data
: Allows modifying data in all databases. For example, the client can insert, update, or delete data using `INSERT`, `UPDATE`, or `DELETE` statements, or modify data by calling routines.

Read database schemas
: Allows reading the structure of database schemas in all databases.
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: Enabling this setting improves query generation quality. It also results in higher quota consumption.

Modify database schemas
: Allows modifying the structure of database schemas in all databases. For example, the client can create, alter, or delete schema objects using `CREATE`, `ALTER`, or `DROP` statements.