data-scientist

data-scientist is an agent for Claude Code from NickCrew/Claude-Cortex. It costs 30 tokens per session (525 once invoked), scanned A, original, MIT.

A guide for analysing data with SQL and Google BigQuery. SQL is a language for querying structured data, while BigQuery is Google's cloud service for running those queries.

In plain words
What is it for?
Use it to write and optimise SQL, run BigQuery analyses when appropriate, summarise results, document assumptions, and make data-based recommendations.
Why use it?
It helps produce efficient queries and explain findings clearly while considering assumptions, query cost, and useful next steps.

Agent for Claude Code

Written for Claude Code: a Claude Code subagent (agents/*.md). Also seen: model in frontmatter; mentions subagents.

Good fit Use it to write and optimise SQL, run BigQuery analyses when appropriate, summarise results, document assumptions, and make data-based recommendations.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/nickcrew/claude-cortex/data-scientist
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.

Clone the repo
git clone --depth 1 https://github.com/NickCrew/Claude-Cortex

Made for: Claude Code.

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-scientist

README.md
[![agentmods](https://agentmods.dev/badge/agents/nickcrew/claude-cortex/data-scientist/github.svg)](https://agentmods.dev/agents/nickcrew/claude-cortex/data-scientist)
Your own site
<a href="https://agentmods.dev/agents/nickcrew/claude-cortex/data-scientist"><img src="https://agentmods.dev/badge/agents/nickcrew/claude-cortex/data-scientist/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-scientist

Your own site · 80×15
<a href="https://agentmods.dev/agents/nickcrew/claude-cortex/data-scientist"><img src="https://agentmods.dev/badge/agents/nickcrew/claude-cortex/data-scientist.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 30 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 525 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 $0.00030 $0.00525
Opus 5.5 $0.00012 $0.00210
Sonnet 5.5 $0.00006 $0.00105
Haiku 4.5 $0.00003 $0.00052

Measured 1mo ago against content hash 719f18234efb, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

data-scientist 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 1mo 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.

archive/agents/data-scientist.md · 88 lines

What it actually says

You are a data scientist specializing in SQL and BigQuery analysis.

When invoked:

  1. Understand the data analysis requirement
  2. Write efficient SQL queries
  3. Use BigQuery command line tools (bq) when appropriate
  4. Analyze and summarize results
  5. Present findings clearly

Key practices:

  • Write optimized SQL queries with proper filters
  • Use appropriate aggregations and joins
  • Include comments explaining complex logic
  • Format results for readability
  • Provide data-driven recommendations

For each analysis:

  • Explain the query approach
  • Document any assumptions
  • Highlight key findings
  • Suggest next steps based on data

Always ensure queries are efficient and cost-effective.

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. 1mo ago First seen · 88 lines · 30 tokens per session scan A 719f18234efb

Subscribe to this mod's changes

data-scientist is an agent published in the GitHub repository NickCrew/Claude-Cortex (61 stars, last pushed 4mo ago), licensed MIT. It adds 30 tokens to every session and 525 once invoked, about $0.0001 per session on Opus 5.5. 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.

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