data-lake-starter

data-lake-starter is a skill for Claude Code, Codex from pbc-os/smb-starter-kit. It costs 68 tokens per session (4,160 once invoked), scanned A, original, MIT.

A setup guide for creating an empty, secure BigQuery data lake on Google Cloud Platform (GCP), a cloud service for storing and analyzing data. It uses Terraform or an AI agent to configure datasets, identities, views, logs, and budget alerts.

In plain words
What is it for?
Creating the initial BigQuery data-lake foundation, limiting access by role, avoiding downloadable service-account keys, exposing read-only views, recording activity, and setting a spending alert.
Why use it?
It removes the need to design the lake’s security and cloud setup from scratch. Your data sources remain separate until you connect them later.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: reads .claude/ paths; positional $N argument; mentions Claude Code.

Good fit Creating the initial BigQuery data-lake foundation, limiting access by role, avoiding downloadable service-account keys, exposing read-only views, recording activity, and setting a spending alert.

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Install with agentmods
npx agentmods add skills/pbc-os/smb-starter-kit/data-lake-starter
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.

Any agent
npx skills add pbc-os/smb-starter-kit --skill data-lake-starter
Clone the repo
git clone --depth 1 https://github.com/pbc-os/smb-starter-kit

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for data-lake-starter

README.md
[![agentmods](https://agentmods.dev/badge/skills/pbc-os/smb-starter-kit/data-lake-starter/github.svg)](https://agentmods.dev/skills/pbc-os/smb-starter-kit/data-lake-starter)
Your own site
<a href="https://agentmods.dev/skills/pbc-os/smb-starter-kit/data-lake-starter"><img src="https://agentmods.dev/badge/skills/pbc-os/smb-starter-kit/data-lake-starter/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for data-lake-starter

Your own site · 80×15
<a href="https://agentmods.dev/skills/pbc-os/smb-starter-kit/data-lake-starter"><img src="https://agentmods.dev/badge/skills/pbc-os/smb-starter-kit/data-lake-starter.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 68 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 4,160 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
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 5.1 $0.00068 $0.04160
Opus 5 $0.00034 $0.02080
Sonnet 5 $0.00014 $0.00832
Haiku 4.5 $0.00007 $0.00416

Measured 9d ago against content hash dc87851eecdd, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

data-lake-starter 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 9d ago.

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/tier-1-foundation/data-lake-starter/SKILL.md · 279 lines

How it starts

The opening of the file, as written. The whole thing — 279 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Data Lake Starter — A Secure Home for All Your Business Data

Start here. This is the first skill in the foundation tier. It builds the secure, empty lake that every other skill in this kit reads from and writes to.

How to use this skill

Don't run these steps by hand. Hand them to an AI agent and let it drive.

This skill is written to be run by an agent on your behalfClaude Code or Claude Desktop — not copy-pasted into a terminal by you. That's not just easier; it's how the lake gets set up securely: the agent runs each gcloud / terraform command with judgment, explains every security choice as it goes, checks its own work, and never writes a secret to disk.

Getting started (about 5 minutes):

  1. Install an agent. Claude Desktop is the no-terminal option; Claude Code is the CLI version.
  2. Add this skill. Clone the kit and copy this folder into your agent's skills directory:
    git clone https://github.com/pbc-os/smb-starter-kit.git
    cp -r smb-starter-kit/skills/tier-1-foundation/data-lake-starter ~/.claude/skills/data-lake-starter
    
    (Not comfortable with git? Download the repo as a ZIP from GitHub and copy the folder. On Windows the skills directory is %APPDATA%\Claude\skills\.)
  3. Ask the agent to run it. Open the agent and say: "Use the data-lake-starter skill to build my data lake — walk me through it."

New to all of this? Start with the repo README. The rest of this document is written for the agent — you're welcome to read along, but you don't have to run anything yourself.

1. The Vision: You Already Have the Data

Every small business is already generating enterprise amounts of data. Your POS, your accounting, your email tool, your ad accounts, your reviews — each one is quietly piling up thousands of rows about your business. The problem was never having the data. It's that the data lives in twenty different tools that don't talk to each other, and stitching it together used to require a data team only big companies could afford.

Read the full file on GitHub · 279 lines

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. 9d ago First seen · 279 lines · 68 tokens per session scan A dc87851eecdd

Subscribe to this mod's changes

data-lake-starter is a skill published in the GitHub repository pbc-os/smb-starter-kit (10 stars, last pushed 3mo ago), licensed MIT. It adds 68 tokens to every session and 4,160 once invoked, about $0.0003 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 2026-08-31.

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