# madrobby/scriptaculous

script.aculo.us is an open-source JavaScript framework for visual effects and interface behaviours.

Repository: https://github.com/madrobby/scriptaculous
Canonical: https://ross.abutalabs.com/products/scriptaculous
Homepage: http://script.aculo.us/
Language: HTML
License: MIT
License Family: permissive
Last push: 2023-04-26T22:14:14+00:00

## Health v2 (maintenance only)
Score: 32/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 0, release rhythm 35, longevity 100
- inputs: {"age_days": 6728, "days_push": 1225, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases, no_readme
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 2312, forks 497 (observed 2026-08-28T04:06:36.600488+00:00)

## What it is
script.aculo.us is an open-source JavaScript library providing visual effects, animation, drag-and-drop, and interface behaviors, built as an add-on to the Prototype framework. It also includes DOM utilities and a unit testing framework, and was widely used in the Web 2.0 era.

## Use cases
- add visual effects and animations to a website
- implement drag-and-drop interfaces in the browser
- build Ajax-powered controls on top of Prototype
- run JavaScript unit tests in the browser
- maintain a legacy Rails-era web application using Prototype

## When to choose
- maintaining or extending an existing legacy codebase that already uses Prototype and script.aculo.us
- you need battle-tested cross-browser effects for very old browser targets

## When to avoid
- starting a new modern web project - use contemporary frameworks or the Web Animations API instead
- you need framework-agnostic or dependency-free animation tooling
- you require active development, modern security practices, or ES module support

## Facets
- artifact type: library
- maturity: maintenance
- function: animation, ui-components, testing, http-client
- domain: web-development, frontend
- platform: browser
- tags: prototype-addon, drag-and-drop, visual-effects, legacy-javascript, ajax, javascript

## Member repositories
- madrobby/scriptaculous (main) score 32

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:06:36.600488+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T02:39:31.197361+00:00, confidence not recorded.
  - homepage: http://script.aculo.us/ (fetched 2026-08-29T10:19:33.922223+00:00, sha 0d2ecb691af9)
- Data as of 2026-08-30T08:39:29.467469+00:00.