Excel Parser
Harryoung/efka
Smart Excel/CSV file parsing with intelligent routing based on file complexity analysis.
Auto-generates a Markdown codebook from a dataset (CSV, DTA, Excel, Parquet) with types and summary statistics.
Install Codebook
$ npx skills add brycewang-stanford/Auto-Empirical-Research-Skills --skill codebook -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install brycewang-stanford/Auto-Empirical-Research-Skills codebook --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ 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/29-quarcs-lab-project20XXy/dot-claude/skills/codebook .claude/skills/codebook && rm -rf skills-srcUse ~/.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/
Install the "codebook" agent skill from https://github.com/brycewang-stanford/Auto-Empirical-Research-Skills/tree/main/skills/29-quarcs-lab-project20XXy/dot-claude/skills/codebook into .claude/skills/codebook/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "codebook", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/brycewang-stanford/Auto-Empirical-Research-Skills/tree/main/skills/29-quarcs-lab-project20XXy/dot-claude/skills/codebookType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add brycewang-stanford/Auto-Empirical-Research-Skills --skill codebook -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install brycewang-stanford/Auto-Empirical-Research-Skills codebook --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/brycewang-stanford/Auto-Empirical-Research-Skills.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/29-quarcs-lab-project20XXy/dot-claude/skills/codebook .agents/skills/codebook && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "codebook" agent skill from https://github.com/brycewang-stanford/Auto-Empirical-Research-Skills/tree/main/skills/29-quarcs-lab-project20XXy/dot-claude/skills/codebook into .agents/skills/codebook/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "codebook", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add brycewang-stanford/Auto-Empirical-Research-Skills --skill codebook -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install brycewang-stanford/Auto-Empirical-Research-Skills codebook --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/brycewang-stanford/Auto-Empirical-Research-Skills.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/29-quarcs-lab-project20XXy/dot-claude/skills/codebook .cursor/skills/codebook && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "codebook" agent skill from https://github.com/brycewang-stanford/Auto-Empirical-Research-Skills/tree/main/skills/29-quarcs-lab-project20XXy/dot-claude/skills/codebook into .cursor/skills/codebook/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "codebook", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/brycewang-stanford/Auto-Empirical-Research-Skills.git --path skills/29-quarcs-lab-project20XXy/dot-claude/skills/codebook--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add brycewang-stanford/Auto-Empirical-Research-Skills --skill codebook -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install brycewang-stanford/Auto-Empirical-Research-Skills codebook --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/brycewang-stanford/Auto-Empirical-Research-Skills.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/29-quarcs-lab-project20XXy/dot-claude/skills/codebook .gemini/skills/codebook && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "codebook" agent skill from https://github.com/brycewang-stanford/Auto-Empirical-Research-Skills/tree/main/skills/29-quarcs-lab-project20XXy/dot-claude/skills/codebook into .gemini/skills/codebook/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "codebook", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install brycewang-stanford/Auto-Empirical-Research-Skills codebookInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add brycewang-stanford/Auto-Empirical-Research-Skills --skill codebook -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/brycewang-stanford/Auto-Empirical-Research-Skills.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/29-quarcs-lab-project20XXy/dot-claude/skills/codebook .github/skills/codebook && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "codebook" agent skill from https://github.com/brycewang-stanford/Auto-Empirical-Research-Skills/tree/main/skills/29-quarcs-lab-project20XXy/dot-claude/skills/codebook into .github/skills/codebook/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "codebook", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add brycewang-stanford/Auto-Empirical-Research-Skills --skill codebook -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install brycewang-stanford/Auto-Empirical-Research-Skills codebook --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/brycewang-stanford/Auto-Empirical-Research-Skills.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/29-quarcs-lab-project20XXy/dot-claude/skills/codebook .opencode/skills/codebook && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "codebook" agent skill from https://github.com/brycewang-stanford/Auto-Empirical-Research-Skills/tree/main/skills/29-quarcs-lab-project20XXy/dot-claude/skills/codebook into .opencode/skills/codebook/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "codebook", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
codebook- GitHub stars
- 4.5k
- Token cost
- ~527 tokens
- SKILL.md length
- 238 words
- Files
- 1
- Skills in repo
- 364
- Repo updated
- First seen
- Licence
- Custom licence
At a glance
Auto-generates a Markdown codebook from a dataset (CSV, DTA, Excel, Parquet) with types and summary statistics.
- Works in 6 steps: Determine the file format from the… → Load the dataset using uv run python and… → Generate a Markdown codebook with → …
- Documenting variables
- SKILL.md covers Arguments, Steps and Error handling
- Calls uv
What it does
Codebook is an agent skill from brycewang-stanford/Auto-Empirical-Research-Skills. Auto-generates a Markdown codebook from a dataset (CSV, DTA, Excel, Parquet) with types and summary statistics. Use when documenting variables.
Its SKILL.md is about 530 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.
It sits in Documents & Office, covering DataFrames, Excel spreadsheets and Data analysis. It works with Microsoft Excel and pandas. 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
- Documenting variables
- Tasks that involve DataFrames
- Tasks that involve Excel spreadsheets
Example prompts
- “/codebook”
Requirements
- Pre-approved tools (allowed-tools): Bash, Read, Write, Glob, Grep
Workflow steps
6 steps, taken from the first numbered list in SKILL.md.
- Determine the file format from the extension
- Load the dataset using uv run python and extract metadata for each variable
- Generate a Markdown codebook with
- Derive the output filename from the dataset name
- Save to references/-codebook.md
- Report the file path and the number of variables documented.
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 these tools, so the agent can use them without asking each time:
BashReadWriteGlobGrep
From allowed-tools in the SKILL.md frontmatter.
Runs code
Shell commands in SKILL.md call:
uv
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md. Its commands use uv, which can reach the network depending on how they are called.
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
Codebook loads about 527 tokens when it runs. Until then it costs about 38 tokens; SKILL.md has 238 words of instructions outside code blocks.
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: notes
The automated check noted patterns worth knowing about, such as sudo or a known installer.
- NotePre-approves every shell command (allowed-tools: Bash)SKILL.md
allowed-tools: Bash, Read, Write, Glob, Grep
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 238 words (~527 tokens).
“Auto-generate a Markdown codebook documenting all variables in a dataset.”
- name
- codebook
- allowed-tools
- Bash, Read, Write, Glob, Grep
- argument-hint
- <path to dataset>
Files
Just SKILL.md in skills/29-quarcs-lab-project20XXy/dot-claude/skills/codebook of brycewang-stanford/Auto-Empirical-Research-Skills.
Open the folder on GitHubat commit 9fa87d8
Compare with similar skills
Codebook 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.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Codebook this skillbrycewang-stanford/Auto-Empirical-Research-Skills | 4.5k | — | ~527 | Automated safety check: Notes | Custom licence | |
| Excel ParserHarryoung/efka | 104 | — | ~2.3k | Automated safety check: Pass | Apache-2.0 | |
| CSV and Excel MergerOneWave-AI/claude-skills | 323 | — | ~1.6k | Automated safety check: Pass | MIT | |
| Sn Da Image CaptionMichaelYang-lyx/AIDABench | 111 | 1 repos | ~2k | Automated safety check: Pass | None | |
| Sn Da Excel WorkflowMichaelYang-lyx/AIDABench | 111 | 1 repos | ~2.5k | Automated safety check: Pass | None | |
| Tabular Cleanupgaasher/Agent-Loop-Skills | 174 | — | ~4k | Automated safety check: Pass | MIT |
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Works with
Categories
Questions about Codebook
What does Codebook do?
Auto-generates a Markdown codebook from a dataset (CSV, DTA, Excel, Parquet) with types and summary statistics. Codebook is an agent skill from brycewang-stanford/Auto-Empirical-Research-Skills. Auto-generates a Markdown codebook from a dataset (CSV, DTA, Excel, Parquet) with types and summary statistics.
When should I use Codebook?
Codebook fits situations like: documenting variables; tasks that involve DataFrames; tasks that involve Excel spreadsheets.
How do I install Codebook in Claude Code?
Run `npx skills add brycewang-stanford/Auto-Empirical-Research-Skills --skill codebook -a claude-code`. Or copy the skill folder (skills/29-quarcs-lab-project20XXy/dot-claude/skills/codebook in brycewang-stanford/Auto-Empirical-Research-Skills) into .claude/skills/codebook in your project. Claude Code loads it when a task matches its description.
How do I install Codebook in Codex?
Run `npx skills add brycewang-stanford/Auto-Empirical-Research-Skills --skill codebook -a codex`. Or copy the skill folder (skills/29-quarcs-lab-project20XXy/dot-claude/skills/codebook in brycewang-stanford/Auto-Empirical-Research-Skills) into .agents/skills/codebook in your project. Codex loads it when a task matches its description.
Can I use Codebook 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 codebook -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/codebook, .gemini/skills/codebook, .github/skills/codebook and .opencode/skills/codebook in your project.
What does Codebook need to run?
Going by SKILL.md and its folder, Codebook needs the command-line tools its instructions call (uv). Its frontmatter pre-approves these tools: Bash, Read, Write, Glob, Grep.
Does Codebook access the network?
SKILL.md contains no URLs. Its commands use uv, which can reach the network depending on how they are called. This is read from the text; nothing was executed.
Is Codebook safe to install?
Our automated static check of SKILL.md found notes only (pre-approves every shell command (allowed-tools: bash)), nothing it rates as a warning. It is not a guarantee. Review the folder before installing.
What licence does Codebook use?
Codebook 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 Codebook use?
About 527 tokens (SKILL.md is roughly 2.1k 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 Codebook?
Skills that share tags, products or a category with Codebook: Excel Parser (Harryoung/efka, 104 stars), CSV and Excel Merger (OneWave-AI/claude-skills, 323 stars), Sn Da Image Caption (MichaelYang-lyx/AIDABench, 111 stars) and Sn Da Excel Workflow (MichaelYang-lyx/AIDABench, 111 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Codebook?
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.