Xan
DocumentsxanXan is an Agent Skill for documents published in the foryourhealth111-pixel/Vibe-Skills repository on GitHub: a SKILL.md instruction file an AI agent can load to do this task.
High-performance CSV processing with xan CLI for large tabular datasets, streaming transformations, and low-memory pipelines.
QUICK START
How to use this skill
Bring this guide into your coding agent with a prompt tailored to the tool you use.
- Open your project in Codex.
- Copy and paste the prompt below.
- Review files and risks before approving any action.
Prompt to paste
Inspect the Agent Skill at https://github.com/foryourhealth111-pixel/Vibe-Skills/blob/HEAD/bundled/skills/xan/SKILL.md and all supporting files. Report provenance, permissions, scripts, dependencies, and security risks. Propose an exact installation into .agents/skills/xan, but wait for my approval before writing files or running scripts.
Copying this prompt does not install or run the skill. Review third-party files before use.
xan
Use this skill when tabular work involves large CSV-like files and shell-oriented data pipelines.
When to Use
- CSV/TSV files are large (size or rows) and Python/pandas style processing is too heavy.
- You need fast CLI operations such as
filter,sort,dedup,groupby,frequency,join. - You want low-memory streaming workflows in terminal pipelines.
Boundaries
- Not for workbook semantics (
.xlsxformula/layout preservation) — usexlsxorexcel-analysis. - Not for ML model training pipelines — use
data-mlskills. - This skill is a thin CLI wrapper; it does not implement custom parsing logic itself.
Script
- Path:
scripts/xan.ps1
Examples
powershell -ExecutionPolicy Bypass -File "$env:USERPROFILE\.codex\skills\xan\scripts\xan.ps1" count data.csv
powershell -ExecutionPolicy Bypass -File "$env:USERPROFILE\.codex\skills\xan\scripts\xan.ps1" filter "score > 0.8" data.csv
powershell -ExecutionPolicy Bypass -File "$env:USERPROFILE\.codex\skills\xan\scripts\xan.ps1" groupby category "sum(amount) as total" sales.csv