# microsoft/scalar

Scalar: A set of tools and extensions for Git to allow very large monorepos to run on Git without a virtualization layer

Repository: https://github.com/microsoft/scalar
Canonical: https://ross.abutalabs.com/products/microsoft-scalar
Language: C#
License: MIT
License Family: permissive
Last push: 2025-02-24T12:09:50+00:00

## Health v2 (maintenance only)
Score: 26/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 8, release rhythm 8, longevity 100
- inputs: {"age_days": 2583, "days_push": 555, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1526, forks 70 (observed 2026-08-28T04:04:58.461809+00:00)

## What it is
Scalar is a set of tools and extensions that configure advanced Git features (partial clone, sparse-checkout, background prefetch, commit-graph, multi-pack-index) so very large monorepos can run on Git without a virtualization layer. It has been ported into the microsoft/git fork as a small CLI and is now maintained there.

## Use cases
- clone and work with a huge monorepo in git
- speed up git fetch on a large repository
- reduce working directory size with sparse-checkout
- make git log and commit walks faster
- manage background maintenance for big git repos

## When to choose
- you work with very large Git repositories or monorepos
- you want Git performance features configured automatically
- you can use the microsoft/git fork

## When to avoid
- your repositories are small or medium-sized
- you need the standalone Scalar executable rather than microsoft/git
- you require a virtualized filesystem like VFS for Git

## Facets
- artifact type: cli-tool
- maturity: maintenance
- function: version-control, developer-tools, cli
- domain: version-control, developer-tools
- platform: windows, cli
- tags: git, monorepo, large-repositories, microsoft, csharp, command-line, macos, linux

## Member repositories
- microsoft/scalar (main) score 26

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:04:58.461809+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 2026-08-30T04:31:37.395257+00:00, confidence not recorded.
  - readme: https://github.com/microsoft/scalar (fetched 2026-08-28T04:04:58.461809+00:00, sha 710e68a52864)
- Data as of 2026-08-30T08:39:29.467469+00:00.