Produce documented data cleaning scripts that log every transformation with N before/after each step, generate a CONSORT-style exclusion flow diagram, create decision log entries for every…

Custom licenceAuto-check passedData & Analytics

Install Data Clean

skills CLI
$ npx skills add brycewang-stanford/Auto-Empirical-Research-Skills --skill data-clean -a claude-code

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

GitHub CLI
$ gh skill install brycewang-stanford/Auto-Empirical-Research-Skills data-clean --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/brycewang-stanford/Auto-Empirical-Research-Skills.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/61-phdemotions-research-methods/skills/data-clean .claude/skills/data-clean && 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-clean
GitHub stars
4.5k
Token cost
~1.1k tokens
SKILL.md length
459 words
Files
4 (incl. references)
Skills in repo
364
Repo updated
First seen
Licence
Custom licence

At a glance

Produce documented data cleaning scripts that log every transformation with N before/after each step, generate a CONSORT-style exclusion flow diagram, create decision log entries for every…

  • Works in 7 steps: Read context → Load principles and rubric → Plan the cleaning pipeline → …
  • The user says clean data
  • SKILL.md covers How to run cleaning, Voice and Argument handling
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Data Clean is an agent skill from brycewang-stanford/Auto-Empirical-Research-Skills. Produce documented data cleaning scripts that log every transformation with N before/after each step, generate a CONSORT-style exclusion flow diagram, create decision log entries for every subjective choice, compute scale reliability and composites, and write cleaned data to data/processed/. Never modifies raw data. Use when the user says "clean data," "prepare data," "apply exclusion criteria," "handle missing data," "create composites," "data preprocessing," or when /data-validate found issues to address…

Its SKILL.md is about 1.1k tokens, which your agent loads only when the skill is triggered. The skill folder holds 5 other files, including reference files (for example `references/criteria.md`, `references/principles.md` and `references/templates/consort-flow.md`).

It sits in Data & Analytics, covering Data cleaning, Architecture decision records and Machine learning. The repository describes itself as: 🔬 A curated collection of 23,000+ agent skills for empirical research across 8 social science disciplines. | 精选 23,000+ AI Agent 技能库,覆盖8大社会科学学科的实证研究。CoPaper.AI…

When your agent uses it

  • The user says clean data
  • Apply exclusion criteria
  • Handle missing data
  • Create composites

Example prompts

  • “clean data,”
  • “prepare data,”
  • “apply exclusion criteria,”
  • “/data-clean”

Requirements

  • Python 3

Workflow steps

7 steps, taken from the step headings in SKILL.md.

  1. Read context
  2. Load principles and rubric
  3. Plan the cleaning pipeline
  4. Write the cleaning functions
  5. Generate CONSORT-style exclusion flow
  6. Write cleaned data
  7. Summary and next steps

What it can do on your machine

Read from SKILL.md and the folder at commit 9fa87d8. 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

    No scripts in the folder and no shell commands in SKILL.md.

    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 Clean loads about 1.1k tokens when it runs, and up to ~3.7k if it reads all its reference files. Until then it costs about 155 tokens; SKILL.md has 459 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~155
When it runs · the whole SKILL.md, loaded when a task matches
~1.1k
With references · SKILL.md plus every file in references/, read only if the agent opens them
~3.7k

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

Its licence (Custom licence) doesn't allow us to republish the file, so here is its outline and opening line. It has 459 words (~1,114 tokens).

“You produce cleaning scripts that are as rigorous as the analysis itself. Every transformation is logged. Every exclusion is counted. Every subjective choice is documented. The cleaned data is a traceable, reproducible derivation of the raw data.”

— opening of SKILL.md by brycewang-stanford, Custom licence
name
data-clean
argument-hint
<path to raw data or validation report — defaults to data/raw/>

Read the full SKILL.md on GitHub

Files

SKILL.md and 3 other files (references) in skills/61-phdemotions-research-methods/skills/data-clean of brycewang-stanford/Auto-Empirical-Research-Skills.

  • SKILL.md
  • references/criteria.md
  • references/principles.md
  • references/templates/consort-flow.md

Open the folder on GitHubat commit 9fa87d8

Compare with similar skills

Data Clean 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 Clean compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Data Clean this skillbrycewang-stanford/Auto-Empirical-Research-Skills4.5k—~1.1kAutomated safety check: PassCustom licence
Splitting Datasetsjeremylongshore/tons-of-skills-marketplace2.8k1 repos~836Automated safety check: PassMIT
Sap Hana Cloud Data Intelligencesecondsky/sap-skills462—~3.2kAutomated safety check: PassGPL-3.0
Rf Model Importance Analysisaipoch/medical-research-skills2k—~2.7kAutomated safety check: PassMIT
Scientific Data Preprocessingforyourhealth111-pixel/Vibe-Skills3.6k—~5kAutomated safety check: PassApache-2.0
Nan Safe Correlationjaechang-hits/SciAgent-Skills3701 repos~2.9kAutomated safety check: PassCC-BY-4.0

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Questions about Data Clean

What does Data Clean do?

Produce documented data cleaning scripts that log every transformation with N before/after each step, generate a CONSORT-style exclusion flow diagram, create decision log entries for every…. Data Clean is an agent skill from brycewang-stanford/Auto-Empirical-Research-Skills. Produce documented data cleaning scripts that log every transformation with N before/after each step, generate a CONSORT-style exclusion flow diagram, create decision log entries for every subjective choice, compute scale reliability and composites, and write cleaned data to data/processed/.

When should I use Data Clean?

Data Clean fits situations like: the user says clean data; apply exclusion criteria; handle missing data; create composites.

How do I install Data Clean in Claude Code?

Run `npx skills add brycewang-stanford/Auto-Empirical-Research-Skills --skill data-clean -a claude-code`. Or copy the skill folder (skills/61-phdemotions-research-methods/skills/data-clean in brycewang-stanford/Auto-Empirical-Research-Skills) into .claude/skills/data-clean in your project. Claude Code loads it when a task matches its description.

How do I install Data Clean in Codex?

Run `npx skills add brycewang-stanford/Auto-Empirical-Research-Skills --skill data-clean -a codex`. Or copy the skill folder (skills/61-phdemotions-research-methods/skills/data-clean in brycewang-stanford/Auto-Empirical-Research-Skills) into .agents/skills/data-clean in your project. Codex loads it when a task matches its description.

Can I use Data Clean 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 brycewang-stanford/Auto-Empirical-Research-Skills --skill data-clean -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-clean, .gemini/skills/data-clean, .github/skills/data-clean and .opencode/skills/data-clean in your project.

What does Data Clean need to run?

SKILL.md names no scripts, command-line tools or credentials: Data Clean is instructions for the agent only. Our summary lists: Python 3.

Does Data Clean 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 Clean 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 Clean use?

Data Clean has a licence file (the repository's licence) that doesn't match a standard licence. Read it on GitHub before reusing the skill.

How many tokens does Data Clean use?

About 1.1k tokens (SKILL.md is roughly 4.5k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 2.6k tokens, read only when the agent opens those files.

What are the alternatives to Data Clean?

Skills that share tags, products or a category with Data Clean: Splitting Datasets (jeremylongshore/tons-of-skills-marketplace, 2.8k stars), Sap Hana Cloud Data Intelligence (secondsky/sap-skills, 462 stars), Rf Model Importance Analysis (aipoch/medical-research-skills, 2k stars) and Scientific Data Preprocessing (foryourhealth111-pixel/Vibe-Skills, 3.6k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Data Clean?

brycewang-stanford (a GitHub user) maintains it in brycewang-stanford/Auto-Empirical-Research-Skills, which has 4,529 GitHub stars. The repository holds 364 skills in this directory. The repository was last updated on October 5, 2026.

Source: brycewang-stanford/Auto-Empirical-Research-Skills on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.