bigquery-execute-sql

About

A bigquery-execute-sql tool executes a SQL statement against BigQuery. It’s compatible with the following sources:

• bigquery

bigquery-execute-sql accepts the following parameters:

• sql (required): The GoogleSQL statement to execute.
• dry_run (optional): If set to true, the query is validated but not run, returning information about the execution instead. Defaults to false.

The behavior of this tool is influenced by the writeMode setting on its bigquery source:

• allowed (default): All SQL statements are permitted.
• blocked: Only SELECT statements are allowed. Any other type of statement (e.g., INSERT, UPDATE, CREATE) will be rejected.
• protected: This mode enables session-based execution. SELECT statements can be used on all tables, while write operations are allowed only for the session’s temporary dataset (e.g., CREATE TEMP TABLE ...). This prevents modifications to permanent datasets while allowing stateful, multi-step operations within a secure session.

The tool’s behavior is influenced by the allowedDatasets restriction on the bigquery source. Similar to writeMode, this setting provides an additional layer of security by controlling which datasets can be accessed:

• Without allowedDatasets restriction: The tool can execute any valid GoogleSQL query.
• With allowedDatasets restriction: Before execution, the tool performs a dry run to analyze the query. It will reject the query if it attempts to access any table outside the allowed datasets list. To enforce this restriction, the following operations are also disallowed:
  • Dataset-level operations (e.g., CREATE SCHEMA, ALTER SCHEMA).
  • Unanalyzable operations where the accessed tables cannot be determined statically (e.g., EXECUTE IMMEDIATE, CREATE PROCEDURE, CALL).

Note: This tool is intended for developer assistant workflows with human-in-the-loop and shouldn’t be used for production agents.

Example

tools:
 execute_sql_tool:
    kind: bigquery-execute-sql
    source: my-bigquery-source
    description: Use this tool to execute sql statement.

Reference