bigquery-data

A collection of tools for exploring and managing large datasets in BigQuery, Google's cloud data warehouse.

In plain words
What is it for?
It supports dataset discovery, metadata lookup, SQL dry runs, query execution, and large-scale data exploration.
Why use it?
It helps developers find data assets, inspect dataset information, validate SQL, and run queries without handling every warehouse step manually.

Skill for Claude CodeCodex

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add skills/gemini-cli-extensions/bigquery-data-analytics/bigquery-data
Any agent
npx skills add gemini-cli-extensions/bigquery-data-analytics --skill bigquery-data
Clone the repo
git clone --depth 1 https://github.com/gemini-cli-extensions/bigquery-data-analytics

Made for: Claude Code, Codex.

Per session 45 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 755 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5 $0.00045 $0.00755
Opus 5 $0.00023 $0.00378
Sonnet 5 $0.00009 $0.00151
Haiku 4.5 $0.00005 $0.00076

Measured 2d ago against content hash 157ad7b823e3, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

bigquery-data scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2d ago.

The scan reads SKILL.md. This mod also ships 6 executable files (scripts/execute_sql.js, scripts/get_dataset_info.js, scripts/get_table_info.js, …), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

skills/bigquery-data/SKILL.md · 109 lines

How it starts

The opening of the file, as written. The whole thing — 109 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Usage

All scripts can be executed using Node.js. Replace <param_name> and <param_value> with actual values.

Bash: node <skill_dir>/scripts/<script_name>.js '{"<param_name>": "<param_value>"}'

PowerShell: node <skill_dir>/scripts/<script_name>.js '{\"<param_name>\": \"<param_value>\"}'

Note: The scripts automatically load the environment variables from various .env files. Do not ask the user to set vars unless skill executions fails due to env var absence.

Scripts

execute_sql

Use this skill to execute sql statement.

Parameters
Name Type Description Required Default
sql string The SQL to execute. Yes
dry_run boolean If set to true, the query will be validated and information about the execution will be returned without running the query. Defaults to false. No false

get_dataset_info

Use this skill to get dataset metadata.

Parameters
Name Type Description Required Default
project string The Google Cloud project ID containing the dataset. No
dataset string The dataset to get metadata information. Can be in project.dataset format. Yes

get_table_info

Use this skill to get table metadata.

Parameters
Name Type Description Required Default
project string The Google Cloud project ID containing the dataset and table. No
dataset string The table's parent dataset. Yes
table string The table to get metadata information. Yes

list_dataset_ids

Use this skill to list datasets.

Parameters
Name Type Description Required Default
project string The Google Cloud project to list dataset ids. No

list_table_ids

Use this skill to list tables.

Parameters
Name Type Description Required Default
project string The Google Cloud project ID containing the dataset. No
dataset string The dataset to list table ids. Yes

Read the full file on GitHub · 109 lines

Files

What ships with it

6 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 2d ago First seen · 109 lines · 45 tokens per session scan A 157ad7b823e3

Subscribe to this mod's changes

bigquery-data is a skill published in the GitHub repository gemini-cli-extensions/bigquery-data-analytics (49 stars, last pushed 4d ago), licensed Apache-2.0. It adds 45 tokens to every session and 755 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.