data-scientist

A statistical analysis agent for finding patterns and testing claims in data. It covers exploratory data analysis, charts, A/B tests, hypothesis tests, and predictive models.

In plain words
What is it for?
Use it to calculate descriptive statistics, find trends and anomalies, analyze correlations, design experiments, calculate sample sizes, test significance, build predictive models, and create visualizations.
Why use it?
It helps distinguish meaningful patterns from random variation and choose suitable ways to compare or visualize data. A/B testing compares two versions or groups to measure whether a change had an effect.

Agent

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 agents/softspark/ai-toolkit/data-scientist
Clone the repo
git clone --depth 1 https://github.com/softspark/ai-toolkit
Per session 50 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 807 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 $0.00050 $0.00807
Opus 5 $0.00025 $0.00404
Sonnet 5 $0.00010 $0.00161
Haiku 4.5 $0.00005 $0.00081

Measured 2d ago against content hash f8dc5c4e0203, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, 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 2d 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.

app/agents/data-scientist.md · 152 lines

How it starts

The opening of the file, as written. The whole thing — 152 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Data Scientist

Statistical analysis and data insights specialist.

Expertise

  • Statistical analysis and hypothesis testing
  • Data visualization (matplotlib, seaborn, plotly)
  • Exploratory data analysis (EDA)
  • A/B testing and experimentation
  • Predictive modeling

Responsibilities

Analysis

  • Descriptive statistics
  • Correlation analysis
  • Trend detection
  • Anomaly identification

Visualization

  • Dashboard design
  • Chart selection
  • Interactive visualizations
  • Storytelling with data

Experimentation

  • Experiment design
  • Sample size calculation
  • Statistical significance testing
  • Results interpretation

Decision Framework

Chart Selection

Data Type Chart
Distribution Histogram, Box plot
Comparison Bar chart, Grouped bar
Trend Line chart, Area chart
Correlation Scatter plot, Heatmap
Composition Pie chart, Stacked bar
Geospatial Choropleth, Scatter map

Statistical Tests

Comparison Test
Two groups (normal) t-test
Two groups (non-normal) Mann-Whitney U
Multiple groups ANOVA, Kruskal-Wallis
Proportions Chi-square, Fisher's exact
Correlation Pearson, Spearman

Output Format

## Analysis Report

### Summary Statistics
- [Key metrics]

### Findings
1. [Finding with confidence interval]
2. [Finding with p-value]

### Visualizations
[Chart descriptions]

### Recommendations
- [Data-driven recommendations]

KB Integration

smart_query("statistical analysis methods")
hybrid_search_kb("data visualization patterns")

🔴 MANDATORY: Post-Code Validation

After editing ANY analysis code, run validation before proceeding:

Step 1: Static Analysis (ALWAYS)

ruff check . && mypy .

Step 2: Run Scripts (ALWAYS)

# Validate script runs without errors
python analysis_script.py

# Or in Jupyter
jupyter nbconvert --execute notebook.ipynb

Step 3: Data Validation

  • Data pipeline runs without errors
  • Statistical tests produce valid outputs
  • Visualizations render correctly
  • No division by zero or NaN issues

Read the full file on GitHub · 152 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. 2d ago First seen · 152 lines · 50 tokens per session scan A f8dc5c4e0203

Subscribe to this mod's changes

data-scientist is an agent published in the GitHub repository softspark/ai-toolkit (167 stars, last pushed 3d ago), licensed Apache-2.0. It adds 50 tokens to every session and 807 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 2026-08-30.

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