Is That GitHub Repo Abandoned? Nine Signals of an Unmaintained Dependency

Open-source projects almost never announce that they are dead. The maintainer does not archive the repo, write a farewell post, or mark the package deprecated — they just stop showing up. The repository keeps its stars, keeps its download count, keeps appearing in “awesome” lists, and quietly stops being maintained underneath all of it.

That gap between looking alive and being alive is where teams get hurt: you adopt the library, the first breaking ecosystem change arrives, and you discover the issue you filed is sitting on top of two hundred others nobody will ever read. Here are nine signals — all public, all checkable in minutes — that tell you before you commit.

## The direct signals

• -1. Default-branch silence. No pushes to the default branch for 6–12 months. The single strongest signal for libraries that sit under moving ecosystems: browsers, runtimes, and APIs change under a frozen repo until it breaks.
• -2. The commit/release gap. Commits continue but the last release is years old — the maintainer tinkers but has stopped shipping. Or the inverse: releases exist but are pure version-bumps with no code changes.
• -3. Unanswered issues. Not the count — the response behavior. Sort issues by newest and check whether a maintainer has replied to anything in the last quarter. Two hundred open issues with active triage is a popular project; twenty open issues with total silence is an abandoned one.
• -4. Rotting pull requests. External contributors are offering free labor and nobody merges it. When good PRs go stale for months, contributors give up — and the project loses its only succession path.

## The indirect signals

• -5. CI decay. The build badge is red and has been for months, or the CI configuration targets runtimes that reached end-of-life. Nobody fixes CI on a project nobody maintains.
• -6. Stale dependencies.The project's own lockfile pins versions with known vulnerabilities or years of drift. Maintainers who have left stop running dependency updates first.
• -7. The maintainer went dark everywhere.Check the maintainer's global GitHub activity, not just this repo. If they are active elsewhere, the project was deprioritized — a fork or successor may already exist. If they vanished entirely, this is a bus-factor event that already happened.
• -8. The community has moved.A fork with growing activity, a “maintained fork here” issue pinned by users, or ecosystem tutorials all pointing at a successor project. The crowd usually figures it out before the README does.
• -9. Ecosystem drift. No support for the current major version of the platform it serves — the framework plugin stuck two majors behind, the client library missing an API the vendor shipped last year.

## The false positive: stable is not abandoned

Low activity is only a death signal when there is unanswered demand. A small utility that does one thing, has done it correctly for eight years, and has an empty issue tracker is not abandoned — it is finished.

This is why “last commit date” alone misleads in both directions. The discriminating question is: are users asking for things and getting silence? A quiet repo with a quiet issue tracker is stable. A quiet repo with a loud issue tracker is dead.

## Check all nine in one pass

TrustOSS folds these signals into its health score: the activity dimension covers last push, 90-day commit frequency, and release cadence; maintenance covers median issue-close time, open-issue pressure, and archived status; and the deep scan checks CI health, dependency freshness, and whether real dependent packages still rely on the project. Paste the repo into the analyzer — and if you are deciding between a possibly-dead incumbent and an active alternative, the full evaluation checklist will settle it.