ai-ml-data-science

ai-ml-data-science is a skill for Codex from vasilyu1983/AI-Agents-public. It costs 40 tokens per session (2,935 once invoked), scanned A, original, MIT.

A structured workflow for data science and machine learning, from defining the question and exploring data to evaluating a model and preparing the result for use. It emphasizes reproducible analysis and features that work safely in both training and real use.

In plain words
What is it for?
Use it for exploratory data analysis, feature creation, baseline and candidate models, validation, interpretation, uncertainty checks, and production handoff.
Why use it?
It reduces common problems such as unclear goals, unreliable data, information leaking into training, weak comparisons, and results that cannot be handed off.

Skill for Codex

Written for Codex: agents/openai.yaml present. Also seen: mentions Claude Code; mentions Codex.

Good fit Use it for exploratory data analysis, feature creation, baseline and candidate models, validation, interpretation, uncertainty checks, and production handoff.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/vasilyu1983/ai-agents-public/ai-ml-data-science
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 vasilyu1983/AI-Agents-public --skill ai-ml-data-science
Clone the repo
git clone --depth 1 https://github.com/vasilyu1983/AI-Agents-public

Made for: 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 ai-ml-data-science

README.md
[![agentmods](https://agentmods.dev/badge/skills/vasilyu1983/ai-agents-public/ai-ml-data-science/github.svg)](https://agentmods.dev/skills/vasilyu1983/ai-agents-public/ai-ml-data-science)
Your own site
<a href="https://agentmods.dev/skills/vasilyu1983/ai-agents-public/ai-ml-data-science"><img src="https://agentmods.dev/badge/skills/vasilyu1983/ai-agents-public/ai-ml-data-science/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 ai-ml-data-science

Your own site · 80×15
<a href="https://agentmods.dev/skills/vasilyu1983/ai-agents-public/ai-ml-data-science"><img src="https://agentmods.dev/badge/skills/vasilyu1983/ai-agents-public/ai-ml-data-science.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 40 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,935 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. Third-party audits
  • Socket pass 18 Mar 2026
  • Snyk pass 13 Mar 2026
  • NVIDIA SkillSpector warn 7 Sept 2026
SkillSpector: 2 findings, up to medium

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

  • medium Excessive Agency · line 99
    Skill enables autonomous high-impact decisions without human-in-the-loop verification. Critical operations (destructive commands, financial transactions, data deletion) should require explicit user confirmation.
    Fix: Add human-in-the-loop confirmation for destructive, irreversible, or high-impact operations. Never auto-execute commands that modify files, send data, or alter system state.
  • medium Excessive Agency · line 104
    Skill enables autonomous high-impact decisions without human-in-the-loop verification. Critical operations (destructive commands, financial transactions, data deletion) should require explicit user confirmation.
    Fix: Add human-in-the-loop confirmation for destructive, irreversible, or high-impact operations. Never auto-execute commands that modify files, send data, or alter system state.
How audits are shown
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 $0.00040 $0.02935
Opus 5 $0.00020 $0.01468
Sonnet 5 $0.00008 $0.00587
Haiku 4.5 $0.00004 $0.00294

Measured 8d ago against content hash 141f03413635, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

ai-ml-data-science 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 8d ago.

The scan reads SKILL.md. This mod also ships 2 executable files (scripts/leakage_scan.py, scripts/ml_toolkit.py), 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.

frameworks/shared-skills/skills/ai-ml-data-science/SKILL.md · 237 lines

How it starts

The opening of the file, as written. The whole thing — 237 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Data Science Engineering Suite

Use this skill for reproducible data-science work from problem framing through evaluation and handoff. The center of gravity is not "pick the fanciest model." It is framing the decision, building train-serve-safe features, and producing decision-ready evidence.

ASCII Flow

data question
  |
  v
problem framing
  target + unit of analysis + leakage risks + decision/use case
  |
  v
data work
  source checks + EDA + feature logic + split strategy + baseline
  |
  v
model/evidence
  train or analyze + validate + interpret + quantify uncertainty
  |
  v
handoff
  report, notebook, model candidate, or production path to MLOps

Quick Reference

Need Default Direction
reproducible Python workflow uv plus scripts or git-friendly notebooks (marimo for reactive/diffable notebooks)
fast local analysis DuckDB plus Polars (v1.x stable API as of 2026; pre-1.0 API-churn concerns no longer apply)
data contracts Pandera or GX Core at dataset boundaries
tabular baseline linear or logistic model plus tree-based candidate
feature engineering explicit train-serve-safe transforms
unlabeled text corpus embed -> UMAP -> HDBSCAN -> c-TF-IDF; LLM labels once per topic, never per document
tuning Optuna only after the baseline is stable
evaluation slices, threshold, calibration, uncertainty
handoff model card, evaluation report, failure modes, monitoring expectations

When To Use This Skill

  • exploring datasets and checking modelling feasibility
  • designing feature pipelines and leakage controls
  • choosing and comparing model families
  • clustering unlabeled text and discovering topics before a taxonomy or labeling effort exists
  • building reproducible experiment workflows
  • producing evaluation reports, model cards, and handoff artifacts
  • reviewing whether an experiment is genuinely ready for production handoff
  • explaining responsible-AI modelling mechanics: fairness and intersectionality, privacy, interpretability, poisoning, memorization, human oversight, and environmental trade-offs
  • designing general multimodal models: contrastive image-text learning, fusion, VQA/document/video systems, diffusion control, adaptation, and quality-latency trade-offs

Read the full file on GitHub · 237 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. 8d ago Changed · +11 lines · +4 tokens per session 141f03413635
  2. 12d ago First seen · 226 lines · 36 tokens per session scan A 7e5c2f26d03e

Subscribe to this mod's changes

ai-ml-data-science is a skill published in the GitHub repository vasilyu1983/AI-Agents-public (87 stars, last pushed 9d ago), licensed MIT. It adds 40 tokens to every session and 2,935 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.

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