ai-agent

Libre

Name: Libre
Author: commonwealth-of-puerto-rico

LIBRE = Libre Information Batch Restructuring Engine.

70 stars21 forksJavaScriptUpdated 10/3/2014100% free · open source

What it does

LIBRE is an open-source tool that helps restructure and process large batches of information, making it easier to manage and analyze data.

When to use it

•When dealing with large datasets that require filtering, sorting, or transforming
•When needing to automate data processing tasks to save time and reduce manual errors
•When working with data from various sources that require standardization and integration

Ready-to-paste prompt

node libre.js -c example_config.json -i input_data.csv -o output_data.json

Heads up: Make sure you have Node.js (version 14 or higher) installed on your system, as LIBRE relies on it to execute JavaScript code and process data

Saves to your device

Use with Claude

New

Skip the builder — one click puts this in Claude, Cursor, Antigravity and more.

🛠️ Technical setup

Expect 20–40 minutes in a terminal — or let your AI agent drive it.

Try it instantly — no install

Claude Code

mkdir -p ~/.claude/skills/commonwealth-of-puerto-rico-libre && curl -fsSL https://workflowstacks.com/api/skills/commonwealth-of-puerto-rico-libre/claude-skill -o ~/.claude/skills/commonwealth-of-puerto-rico-libre/SKILL.md

Open in another AI app

Opens the app with this repo with the prompt ready to go — no copy-paste needed.

Connect the whole catalog (MCP)

claude mcp add --transport http workflowstacks https://workflowstacks.com/api/mcp

Adds a WorkflowStacks connector to Claude Code: search and load any skill here by chatting.

How Libre works

Codeflow

Free to inspect

Libre is a large JavaScript project (~60k lines across 168 code files, plus 18 test files). It is a full software project: use it through its install path rather than reading it end to end. Last commit 145 months ago, GPL-3.0 license, has a test suite.

Size

Large codebase

~60k lines · 168 code files · ~8 h to skim

Setup

Developer setup

A real software project. Use it via its install path; don't expect to read it all.

Runs on

Python

No API keys detected

JavaScript 50%Python 48%CSS 2%

Where to start reading

1
README.rst
Start here — what it does and how to install it
2
libre/__init__.py
Inside libre/ — the main logic begins here

What's in each folder

libre/Core code — the actual logic739 files

docs/Documentation37 files

READMEHas testsDocumentedCI checksGPL-3.0 licenseLast update 145 mo agoArchived — read only

Use with Claude

New

Skip the builder — one click puts this in Claude, Cursor, Antigravity and more.

🛠️ Technical setup

Expect 20–40 minutes in a terminal — or let your AI agent drive it.

Try it instantly — no install

Claude Code

mkdir -p ~/.claude/skills/commonwealth-of-puerto-rico-libre && curl -fsSL https://workflowstacks.com/api/skills/commonwealth-of-puerto-rico-libre/claude-skill -o ~/.claude/skills/commonwealth-of-puerto-rico-libre/SKILL.md

Open in another AI app

Opens the app with this repo with the prompt ready to go — no copy-paste needed.

Connect the whole catalog (MCP)

claude mcp add --transport http workflowstacks https://workflowstacks.com/api/mcp

Adds a WorkflowStacks connector to Claude Code: search and load any skill here by chatting.

Quick Actions

Details

Creator

commonwealth-of-puerto-rico

Language

JavaScript