StealIt

Dataset Curation

dataset-curation

Prepare, format, and validate datasets for supervised fine-tuning and preference training. Use when converting raw data into training format, applying chat templates, configuring sequence packing, generating synthetic training data, or writing a dataset card before a run.

Install

Run this in your project folder. It works with Claude Code, Cursor, Codex and dozens of other agents.

$ npx skills add wshobson/agents --skill dataset-curation

Needs Node.js. Add -g to install for every project, or -a claude-code to skip the agent picker.

How to use Dataset Curation

Once it's installed, Claude reads this skill on its own whenever a request matches what it's for, so you don't have to mention it by name. In Claude Code you can also run it directly by typing /dataset-curation.

It contains no scripts, only instructions and reference files, so it can't run code on its own.

What the instructions cover

  1. 1Format Selection
  2. 2Chat Templates and Loss Masking
  3. 3Packing
  4. 4Synthetic Data Rules
  5. 5The Dataset Card
  6. 6References

Section headings from the skill's SKILL.md file.

What's inside · 3 files

  • SKILL.md
  • references/formats-and-templates.md
  • references/synthetic-data.md

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