BigQuery

CRITICAL: BigQuery is a Native Agent Tool

bigquery is available directly in the agent's tool list as a native callable tool.

• If you see bigquery in your available tools — call it directly with your SQL. Do not use HTTP workarounds, web-request hacks, or scripts as a substitute.
• The server/lib/bigquery.ts description below is the underlying implementation. It does not mean BigQuery is only accessible via terminal commands or scripts.
• When uncertain if the tool works, call it — don't reason your way to "it won't work". Empirically test by calling the tool.

Data-Dictionary-First Discipline

Before writing any SQL, verify the metric definition and exact table/column names.

1. Call list-data-dictionary with a focused search first; dictionary definitions are loaded on demand rather than injected into every chat request.
2. Use search-bigquery-schema to confirm exact dataset, table, and column names.
3. Only write SQL after you know the correct table and columns. Do not guess.