About absolute-upgrade
absolute-upgrade is a development skill for teams maintaining outdated project dependencies. It groups upgrades into risk-ranked waves, verifies each with the project's tests and build, and treats major version changes separately.
Key features
- 01Scan outdated dependencies across ecosystems
- 02Group upgrades by semantic-version risk
- 03Review major-version changes individually
- 04Regenerate lockfiles and run tests and builds
- 05Revert a wave that cannot pass verification
Use cases
- 01Perform routine dependency updates
- 02Work through a dependency upgrade backlog
- 03Move to a specified version or replace a deprecated package
Install
Copy the command and run it in a terminal.
npx skills add https:/After installing, type/absolute-upgradein Claude Code to confirm it loaded.
Details
From the project READMEStart your first response with the ⬆️ emoji.
Absolute Upgrade
Bring dependencies current — safely, in risk-ranked waves, with tests green after each.
Not a blind npm update: outdated and vulnerable deps are grouped by blast radius
(patch/minor → safe wave; major/breaking → gated, one at a time, changelog-read), applied
incrementally, and verified against the project's own test suite.
Runs the shared engine in references/health-engine.md — read it for the
DETECT → SCAN → TRIAGE → FIX → VERIFY → REPORT loop and the safety contract. This file
covers only what's specific to dependency upgrades.
When to use
- Routine "bring deps up to date" / "upgrade our dependencies".
- A specific bump: "upgrade React to 19", "move off the deprecated X package".
- Clearing
npm outdated/ Dependabot backlog without 40 separate PRs.
Not for: adding a new dependency (that's a work/feature decision), or auditing
vulnerabilities specifically → use /absolute audit (it triages CVEs; upgrade
moves versions).
What it scans
Per ecosystem, list outdated deps with current → wanted → latest and the jump type:
| Ecosystem | Detect outdated | Lockfile / manifest |
|---|---|---|
| npm | npm outdated --json | package-lock.json |
| pnpm | pnpm outdated --format json | pnpm-lock.yaml |
| yarn | yarn outdated --json | yarn.lock |
| Python (pip) | pip list --outdated --format=json | requirements*.txt |
| Python (poetry/uv) | poetry show --outdated / uv pip list --outdated | pyproject.toml + lock |
| Go | go list -u -m -json all | go.mod / go.sum |
Also flag: deps with known deprecations, duplicate/multiple versions of the same package, and direct vs transitive (only direct deps are upgrade targets; transitives follow).
Risk ranking (TRIAGE)
Group the upgrade plan into waves by semver jump — safest first:
| Wave | Jump | Default |
|---|---|---|
| 1 | patch (x.y.Z) | batch together, fix now |
| 2 | minor (x.Y.z) | batch by package family, fix now |
| 3 | major (X.y.z) / pre-1.0 minor | one at a time, gated — read the changelog/migration guide first, list breaking changes |
For every major bump: locate breaking changes (CHANGELOG, release notes, codemod if the package ships one), inventory call sites that touch the changed API, and state the migration before applying. Peer-dependency conflicts get resolved in the same wave as their driver.
Fix & verify
- Apply a wave, regenerate the lockfile, run the project's full test + build (a passing install is not a passing upgrade).
- Majors: apply the version bump and the required code migration in the same wave, or the build breaks. Use the package's codemod where one exists.
- A wave that can't go green within reason → revert it, report it as blocked with the error,
keep the green waves. Never
--force/--legacy-peer-depsto mask a real conflict.
Gotchas
- Lockfile-only "upgrade". Bumping the manifest without regenerating + committing the lockfile ships untested transitive versions. Always regenerate.
- Batching a major in with patches. One breaking bump fails the whole wave and hides which change broke it. Majors are always solo.
- Green install ≠ green project.
npm installsucceeding proves nothing — run tests. - Pinning around a failure. If a bump breaks something, fix or defer it; don't pin the dependency tree to dodge it silently.
Companion commands
/absolute audit— if the goal is fixing vulnerabilities, start there; it'll route back here for the version moves./absolute deflake— flaky tests can mask whether an upgrade truly passed./absolute work— if an upgrade needs real feature-level migration work, hand off.