preconstruct/preconstruct

Some data may be outdated — see provenance labels.

🎁 Dev and build your code painlessly in monorepos observed · 2026-09-25

github.com/preconstruct/preconstruct · homepage · TypeScript · MIT (permissive) observed · 2026-09-25

Health v2 · maintenance only

84/100

Activity 90
Release rhythm 66
Longevity 100

How is this computed?

round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-10-22. Adoption (stars, forks) is never an input.

gap_med: 105.5
age_days: 2907
days_rel: 65
days_push: 65
n_releases_24m: 5

Full methodology

Adoption not part of the score

1190 stars · 65 forks observed · 2026-09-25

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

Preconstruct is a CLI tool that simplifies developing and building JavaScript/TypeScript packages in monorepos. It generates dev-mode entrypoint files so packages can be imported without rebuilding, and builds production bundles with Rollup before publishing.

Use cases

set up npm package builds in a monorepo
import workspace packages without rebuilding on every change
add multiple entrypoints to a package for publishing
build flat bundles with rollup before publishing to npm
validate package entrypoint configuration in CI
develop a single-package repo with production-like dev behavior

When to choose

you maintain a JavaScript or TypeScript monorepo with packages published to npm
you want dev mode that mirrors production package resolution without rebuilds
you need multiple entrypoints per package with correct dist files

When to avoid

you build non-JavaScript projects
you need bundling features beyond rollup-based package builds, like full app bundling
you prefer a zero-config bundler like tsup or unbuild for simple packages

Facets

cli-tool · maturity active

build-tool cli developer-tools developer-tools web-development cli cross-platform monorepo rollup babel npm-packages package-publishing entrypoints typescript javascript nodejs

3 sources

readme: https://github.com/preconstruct/preconstruct · fetched 2026-09-25 · 86fbfca492f6
homepage: https://preconstruct.tools · fetched 2026-08-29 · f1564bc5d799
site_page: https://preconstruct.tools/commands · fetched 2026-08-29 · 999303843eed

Member repositories

Repository	Role	Health v2
preconstruct/preconstruct	main	84

For agents

markdown · JSON · MCP: product_card(name="preconstruct/preconstruct")

Data as of 2026-10-19T08:05:51.212177+00:00 · Report a problem