New: 98,000+ skills indexed from GitHub repos with 100+ stars · every skill safety-checkedBrowse top skillsTop skills
Esc to closeBrowse all skills
Submit a skillBrowse skills
Submit a skillBrowse skills

Agent skill

Data Transformer

by alibaba in alibaba/skill-up

Triggered when the user needs to convert data formats, such as CSV to JSON, JSON to YAML, or XML to JSON.

Apache-2.0Auto-check passedDocuments & Office

Install Data Transformer

skills CLI
$ npx skills add alibaba/skill-up --skill data-transformer -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install alibaba/skill-up data-transformer --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/alibaba/skill-up.git skills-src && mkdir -p .claude/skills && cp -r skills-src/e2e/testdata/script-judge-eval .claude/skills/data-transformer && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
data-transformer
GitHub stars
1.1k
Token cost
~332 tokens
SKILL.md length
131 words
Files
11
Skills in repo
7
Repo updated
First seen
Licence
Apache-2.0

At a glance

Triggered when the user needs to convert data formats, such as CSV to JSON, JSON to YAML, or XML to JSON.

  • Works in 5 steps: Read the input file → Parse the source format → Convert to the target format → …
  • Needs to convert data formats
  • SKILL.md covers Supported Conversions, Workflow, CSV → JSON Conversion Rules and Notes
  • Runs Shell scripts from its folder

What it does

Data Transformer is an agent skill from alibaba/skill-up. Triggered when the user needs to convert data formats, such as CSV to JSON, JSON to YAML, or XML to JSON. Automatically performs the conversion and verifies the output format. Trigger phrases include "convert format", "CSV to JSON", "help me convert this data".

Its SKILL.md is about 330 tokens, which your agent loads only when the skill is triggered. The skill folder holds 19 other files (for example `README.md`, `evals/cases/csv-to-json.yaml` and `evals/eval.yaml`).

It sits in Documents & Office, covering CSV and tabular files. The repository describes itself as: An evaluation and evolution tool for Agent Skills. The licence is Apache-2.0.

When your agent uses it

  • Needs to convert data formats
  • Such as CSV to JSON
  • Phrases include convert format
  • Help me convert this data

Example prompts

  • “convert format”
  • “CSV to JSON”
  • “help me convert this data”
  • “/data-transformer”

Requirements

  • A Bash shell

Workflow steps

5 steps, taken from the first numbered list in SKILL.md.

  1. Read the input file
  2. Parse the source format
  3. Convert to the target format
  4. Write the output file
  5. Verify the output file format is correct

What it can do on your machine

Read from SKILL.md and the folder at commit 9d85640. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    Ships script files (Shell), which the agent can run.

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Data Transformer loads about 332 tokens when it runs. Until then it costs about 70 tokens; SKILL.md has 131 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~70
When it runs · the whole SKILL.md, loaded when a task matches
~332

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from alibaba/skill-up at commit 9d85640, republished under its Apache-2.0 licence (© alibaba). 131 words, ~332 tokens.

Download SKILL.mdSave it as .claude/skills/data-transformer/SKILL.md (or your agent's skills folder). This skill also uses 10 other files; get the full folder from GitHub.
name
data-transformer
description
Triggered when the user needs to convert data formats, such as CSV to JSON, JSON to YAML, or XML to JSON. Automatically performs the conversion and verifies the output format. Trigger phrases include "convert format", "CSV to JSON", "help me convert this data".

Data Transformer

You are a data format conversion expert capable of accurately converting between various common data formats.

Supported Conversions

  • CSV → JSON
  • JSON → YAML
  • XML → JSON
  • TSV → JSON

Workflow

  1. Read the input file
  2. Parse the source format
  3. Convert to the target format
  4. Write the output file
  5. Verify the output file format is correct

CSV → JSON Conversion Rules

  • The first row of the CSV becomes the JSON field names
  • Each data row is converted to a JSON object
  • Numeric fields are automatically converted to number types
  • Empty fields are converted to null
  • Output is a formatted JSON array
Example

Input CSV:

csv
name,age,city
Alice,30,Beijing
Bob,25,Shanghai

Output JSON:

json
[
  {"name": "Alice", "age": 30, "city": "Beijing"},
  {"name": "Bob", "age": 25, "city": "Shanghai"}
]

Notes

  • Preserve data integrity — do not lose any fields
  • Correctly handle CSV fields containing commas or quotes
  • Use 2-space indentation in the output JSON

© alibaba, Apache-2.0. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

SKILL.md and 10 other files in e2e/testdata/script-judge-eval of alibaba/skill-up.

  • SKILL.md
  • README.md
  • evals/cases/csv-to-json.yaml
  • evals/eval.yaml
  • evals/evals.json
  • evals/fixtures/workspace/input.csv
  • fixtures/expected/csv-to-json-grading.json
  • fixtures/judge-inputs/csv-to-json.json
  • fixtures/scripts/check-transform.sh
  • fixtures/workspace/input.csv
  • fixtures/workspace/output.json

Open the folder on GitHubat commit 9d85640

Compare with similar skills

Data Transformer next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Data Transformer compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Data Transformer this skillalibaba/skill-up1.1k—~332Automated safety check: PassApache-2.0
Data Table Managern8n-io/n8n207k—~2.3kAutomated safety check: PassCustom licence
Instrument Data To Allotropeaws-samples/amazon-bedrock-agents-healthcare-lifesciences2742 repos~2.7kAutomated safety check: PassApache-2.0
Abuse Hunternexu-io/harness-engineering-guide663—~1.9kAutomated safety check: PassMIT
Markitshift-labs-ai/markit1.3k—~299Automated safety check: PassMIT
Sector Analysttradermonty/claude-trading-skills3k1 repos~2.3kAutomated safety check: PassMIT

Similar skills

  • Data Table Manager

    n8n-io/n8n

    Official

    Load before calling data-tables or parse-file. An agent skill from n8n-io/n8n.

    207k GitHub stars~2.3k tokensUpdated today
    Documents & OfficeAuto-check passed

  • Instrument Data To Allotrope

    aws-samples/amazon-bedrock-agents-healthcare-lifesciences

    Official

    Convert laboratory instrument output files (PDF, CSV, Excel, TXT) to Allotrope Simple Model (ASM) JSON format or flattened 2D CSV.

    274 GitHub starsUsed in 2 repos~2.7k tokens
    Documents & OfficeAuto-check passed

  • Abuse Hunter

    nexu-io/harness-engineering-guide

    Detect and investigate bulk registration abuse on SaaS platforms.

    663 GitHub stars~1.9k tokensUpdated 5 mo ago
    Documents & OfficeAuto-check passed

  • Markit

    shift-labs-ai/markit

    Convert files and URLs to Markdown. An agent skill from shift-labs-ai/markit.

    1.3k GitHub stars~299 tokensUpdated 1 mo ago
    Documents & OfficeAuto-check passed

  • Sector Analyst

    tradermonty/claude-trading-skills

    This skill should be used when analyzing sector rotation patterns and market cycle positioning.

    3k GitHub starsUsed in 1 repo~2.3k tokens
    Documents & OfficeAuto-check passed

  • Uap Release Analyzer

    ckpxgfnksd-max/uap-release-analyzer

    Inventory, extract, and analyze tranches of declassified UAP/UFO files — including war.gov/UFO/ "PURSUE" releases, FBI Vault, NARA boxes, and AARO publications.

    155 GitHub stars~2.6k tokensUpdated 5 mo ago
    Documents & OfficeAuto-check passed

More from alibaba/skill-up

  • Code Review Assistant

    alibaba/skill-up

    Triggered when the user submits code or requests a code review.

    1.1k GitHub stars~505 tokensUpdated today
    Auto-check passed

  • File Organizer

    alibaba/skill-up

    Triggered when the user needs to organize project files, analyze directory structure, or generate a project report.

    1.1k GitHub stars~374 tokensUpdated today
    Auto-check passed

  • Quick Calculator

    alibaba/skill-up

    Quickly produces accurate calculation results when a user needs arithmetic, unit conversion, or mathematical formula solving.

    1.1k GitHub stars~252 tokensUpdated today
    Auto-check passed

  • Code Quality Analyzer

    alibaba/skill-up

    Triggered when the user submits code or requests a comprehensive code quality analysis.

    1.1k GitHub stars~306 tokensUpdated today
    Auto-check passed

  • Mood Booster

    alibaba/skill-up

    Triggered when the user expresses boredom, low mood, frustration, irritation, or a need to relax.

    1.1k GitHub stars~372 tokensUpdated today
    Auto-check passed

  • Sdd Riper

    alibaba/skill-up

    SDD-RIPER workflow executor with phase gating. An agent skill from alibaba/skill-up.

    1.1k GitHub stars~117 tokensUpdated today
    Auto-check passed

Categories

Questions about Data Transformer

What does Data Transformer do?

Triggered when the user needs to convert data formats, such as CSV to JSON, JSON to YAML, or XML to JSON. Data Transformer is an agent skill from alibaba/skill-up. Triggered when the user needs to convert data formats, such as CSV to JSON, JSON to YAML, or XML to JSON.

When should I use Data Transformer?

Data Transformer fits situations like: needs to convert data formats; such as CSV to JSON; phrases include convert format; help me convert this data.

How do I install Data Transformer in Claude Code?

Run `npx skills add alibaba/skill-up --skill data-transformer -a claude-code`. Or copy the skill folder (e2e/testdata/script-judge-eval in alibaba/skill-up) into .claude/skills/data-transformer in your project. Claude Code loads it when a task matches its description.

How do I install Data Transformer in Codex?

Run `npx skills add alibaba/skill-up --skill data-transformer -a codex`. Or copy the skill folder (e2e/testdata/script-judge-eval in alibaba/skill-up) into .agents/skills/data-transformer in your project. Codex loads it when a task matches its description.

Can I use Data Transformer in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add alibaba/skill-up --skill data-transformer -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/data-transformer, .gemini/skills/data-transformer, .github/skills/data-transformer and .opencode/skills/data-transformer in your project.

What does Data Transformer need to run?

Going by SKILL.md and its folder, Data Transformer needs a shell for the scripts in its folder. Our summary lists: A Bash shell.

Does Data Transformer access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Data Transformer safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Data Transformer use?

Data Transformer is published under the Apache-2.0 licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Data Transformer use?

About 332 tokens (SKILL.md is roughly 1.3k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Data Transformer?

Skills that share tags, products or a category with Data Transformer: Data Table Manager (n8n-io/n8n, 207k stars), Instrument Data To Allotrope (aws-samples/amazon-bedrock-agents-healthcare-lifesciences, 274 stars), Abuse Hunter (nexu-io/harness-engineering-guide, 663 stars) and Markit (shift-labs-ai/markit, 1.3k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Data Transformer?

alibaba (a GitHub organization) maintains it in alibaba/skill-up, which has 1,148 GitHub stars. The repository holds 7 skills in this directory. The repository was last updated on October 8, 2026.

Source: alibaba/skill-up on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.