Synthetic Data Engineer AI Skill - Thibaut
Build trustworthy eval and training data: representative sampling, annotation quality, synthetic generation with real gates.
Claude skill package instant downloadthibaut-eval-dataset-synthetic-data-engineer.skill
Cancel anytime before day 7 and you pay nothing. We e-mail you 2 days before the trial ends.
Example
You: Our eval scores are 94% but users complain constantly. Rebuild our eval dataset so it actually predicts production.
AI: Thibaut returns a gap analysis between the current eval set and production traffic, a stratified resampling plan by failure mode, annotation guidelines with a measured...
This is not an app. It's an expert you add to your own AI.
Included in your plan
Ask your AI for it by name, or pick it in your dashboard. No need to buy the file.
Use it in your AIPay once, keep foreverInstant download30-day money-back guarantee
As featured onProduct HuntFazierKittyLaunch
Secure checkout by Stripe
Trademarks of their respective owners. KissMySkills is not affiliated with or endorsed by them.
Ask it something hard.
Or have every skill inside your AI.
Questions before you buy? A person answers, usually the same day: hello@kissmyskills.com
// the file itself
The first lines of the file your AI will read, exactly as delivered. Nothing rewritten for the page.
You are Thibaut, a Senior Eval Dataset and Synthetic Data Engineer who writes the sampling frame first and generates synthetic cases against an attribute grid. You have been activated to build a golden set with measured agreement and a contamination check.
// what's inside
Teams whose eval scores look great but do not predict production behavior at all.
// two ways to get it
$12/mo cancel anytime, or $99 a year
$19 one payment
Already on Library or Both? This one is included, no need to buy the file.
// ask your assistant
Go to kissmyskills.com/pages/connector and set up the "Synthetic Data Engineer AI Skill - Thibaut" skill (handle: thibaut-eval-dataset-synthetic-data-engineer) for me
Paste it into Claude, ChatGPT, Claude Code, Cursor or Codex. Your AI walks you through connecting KissMySkills (about 3 minutes, 7-day free trial) and loads the skill. What your AI will read →
Drop Thibaut into Claude and get a data engineer who builds the eval set your scores are only as trustworthy as.
Thibaut builds and curates the datasets underneath every eval and every fine-tune: sampling a held-out set that actually represents production traffic, stratifying by the failure modes you care about, annotation guidelines and inter-annotator agreement, synthetic data generation with diversity and label-noise gates, contamination and leakage checks between train and eval, dataset versioning and provenance, golden-set maintenance as the product changes, and knowing when a synthetic batch should be thrown away rather than shipped.
What you get
How to install
Download the .skill package, open Claude, paste SKILL.md into your Project Instructions or system prompt, describe your requirement, and Thibaut builds the answer. Includes a full worked example so you see exactly what you get.
After checkout, the download link lands in your inbox. Save the .skill file: Claude takes it as it is.
Any AI chat you already use: Claude, ChatGPT, Gemini, Grok, Copilot or another.
Claude: turn on code execution in Settings → Capabilities, then Customize → Skills → + → Create skill → Upload a skill and pick the .skill file. ChatGPT, Gemini and others: open the .skill file like a .zip archive and paste SKILL.md into custom instructions or Project instructions.
Your AI is now configured as a specialist. Ask it anything inside its domain.
No technical knowledge required.
Build trustworthy eval and training data: representative sampling, annotation quality, synthetic generation with real gates. Load it once into Claude Projects and you get a configured Eval Dataset & Synthetic Data Engineer without re-explaining context at the start of every session. Validate changes against a held-out eval set and real production traces before rolling out to all traffic.
Download the .skill package (it contains SKILL.md), then, in Claude, turn on code execution in Settings → Capabilities and add it under Customize → Skills → + → Create skill → Upload a skill (in ChatGPT, Gemini or another AI, open it as a .zip and paste SKILL.md into Project instructions or custom instructions), add your own context and start your first session. Works with Claude, ChatGPT, or any AI chat that accepts system prompts.
Works with Claude (recommended), ChatGPT, Gemini, Perplexity and Copilot, and any AI chat that accepts system prompts. Claude Projects gives the best results.
Without a skill file your AI starts every session as a general assistant. With Thibaut loaded it applies Eval Dataset & Synthetic Data Engineer methodology from the first message, with consistent quality every time. Validate changes against a held-out eval set and real production traces before rolling out to all traffic.
This one and 2,500+ others, inside Claude, ChatGPT, Claude Code, Codex or Cursor. Cancel anytime.
7 days free, every skill