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xan — measured AI agent skill | DecimalAI

foryourhealth111-pixel/xan

SkillScore100Maintained

High-performance CSV processing with xan CLI for large tabular datasets, streaming transformations, and low-memory pipelines.

Databy foryourhealth111-pixel

Links this skill to your agents and keeps it current with the author’s updates.

Automatic

Data Engineer pack

decimalai skills pull foryourhealth111-pixel-xan

Get this skill — curl · raw file

curl -fsSL https://app.decimal.ai/s/foryourhealth111-pixel-xan/SKILL.md

Raw file: /s/foryourhealth111-pixel-xan/SKILL.md ↗ · machine-readable summary at /s/foryourhealth111-pixel-xan.json ↗

In productionGlobal

how this skill behaves on real traffic · last 30 days

No production data for this skill yet — usage numbers appear here once agents start running it.

Anonymized aggregate across every org using this skill — proof from real production use, not a demo.

Does this skill help? · Benchmark: with vs. withoutsign in to run this on your agents

25 test cases from the publisher’s eval.yaml · each run twice on gemini-3.6-flash — with the skill injected, then without · last run 3h ago

Yes — +88% lift-54% tokens0% turns100% of whole cases pass with skill (25/25)

Test case	Without → With	Effect	Δ tokens	Δ turns
case-09	✗→✓	▲ Improved	-50%	0%
case-01	✗→✓	▲ Improved	-66%	0%
case-02	✗→✓	▲ Improved	-63%	0%
case-03	✗→✓	▲ Improved	-55%	0%
case-04	✗→✓	▲ Improved	-50%	0%

Showing 5 of 25 cases

SkillSafety

✓ 3 of 3 passed

Code scan15 of 15 checks clean

0 critical · 0 warning · 0 info — scanner v4 — 8/3/2026

live_secretremote_code_executionreverse_shelldata_exfiltrationssrf_metadataagent_snoopinganti_refusaldestructive_commandsobfuscated_unicodeunicode_homoglyphopaque_blobsuspicious_urltool_overreachtrigger_abuseprompt_injection_phrasing

IntentSafe

LLM judge · does the skill do what it claims

ContentClean

LLM judge · policy & harmful-content review

Source

Imported

foryourhealth111-pixel / vibe-skills

bundled/skills/xan/SKILL.md

View on GitHub ↗

License Apache-2.0Imported 8/3/2026Version v1Bundled 1 file · scripts

Skill contents

scripts/

SKILL.md

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 (.xlsx formula/layout preservation) — use xlsx or excel-analysis.
Not for ML model training pipelines — use data-ml skills.
This skill is a thin CLI wrapper; it does not implement custom parsing logic itself.

Script

Path: scripts/xan.ps1

Examples

powershell
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

Want to see if foryourhealth111-pixel/xan would activate on your phrasing? Try it before you install — no LLM call, no signup.

Other measured skills in the registry, with their headline benchmark lift.