# com-lihaoyi/Ammonite

Scala Scripting

Repository: https://github.com/com-lihaoyi/Ammonite
Canonical: https://ross.abutalabs.com/products/ammonite
Homepage: http://ammonite.io
Language: Scala
License: MIT
License Family: permissive
Last push: 2026-06-22T01:22:39+00:00

## Health v2 (maintenance only)
Score: 82/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 88, release rhythm 65, longevity 100
- inputs: {"age_days": 4250, "days_push": 73, "days_rel": 159, "gap_med": 37, "n_releases_24m": 10}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 2630, forks 366 (observed 2026-08-28T04:07:05.607739+00:00)

## What it is
Ammonite is a Scala REPL and script runner that lets developers use Scala for lightweight scripting and interactive exploration without setting up a build project. It offers a modernized REPL with syntax highlighting, multi-line editing, and dynamic loading of Maven dependencies, plus a command-line script runner as an alternative to slow sbt startup. The project is now deprecated, with its features ported to the Mill build tool and the upstream Scala 3 REPL.

## Use cases
- run scala scripts from the command line without setting up a project
- scala repl with syntax highlighting and multiline editing
- load maven dependencies dynamically in a scala repl
- scripting in scala instead of python or bash
- interactive scala shell for exploring libraries
- avoid slow sbt startup for quick scala programs

## When to choose
- you maintain an existing codebase that already depends on Ammonite scripts or its REPL
- you are on an older Scala 2.x setup where the upstream REPL lacks Ammonite's features
- you are following tutorials or the Hands-on Scala book that use Ammonite

## When to avoid
- starting a new Scala scripting project - use the Mill build tool's scripting support instead
- you want a modern Scala REPL - use the upstream Scala 3.8.2+ REPL which absorbed most features
- you need long-term support or bug fixes - the project is deprecated and unmaintained

## Facets
- artifact type: cli-tool
- maturity: abandoned
- function: interpreter, cli, terminal-ui, developer-tools
- domain: programming-languages, developer-tools
- platform: jvm, cli, cross-platform
- tags: scala, repl, scripting, script-runner, deprecated, jline, maven-dependencies, command-line

## Member repositories
- com-lihaoyi/Ammonite (main) score 82

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:07:05.607739+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 2026-08-30T02:19:38.560113+00:00, confidence not recorded.
  - readme: https://github.com/com-lihaoyi/Ammonite (fetched 2026-08-28T04:07:05.607739+00:00, sha 3a828b791843)
  - homepage: http://ammonite.io (fetched 2026-08-29T10:02:26.542408+00:00, sha c4a4a623f5a8)
- Data as of 2026-08-30T08:39:29.467469+00:00.