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update-node-version

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Use when updating major Node.js versions across ng-mocks projects, including CI/CD, .nvmrc, Docker images, npm compatibility, @types/node, and wrapper-based validation.

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How to use this skill

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Source SKILL.md: https://github.com/help-me-mom/ng-mocks/blob/HEAD/.agents/skills/update-node-version/SKILL.md

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Copying this prompt does not install or run the skill. Review third-party files before use. Codex skill guide

Update Node Version

Use this skill when the request is to update major Node.js version across some or all of the repository.

Task List

Begin with a plain Markdown checklist that works in AI Agent:

- [ ] Identify which projects should move to the new Node line
- [ ] Inspect all current Node, npm, Docker, and type-version declarations
- [ ] Update the affected config and package files together
- [ ] Re-bootstrap dependencies with wrapper commands
- [ ] Run wrapper-based validation on every changed target
- [ ] Summarize the new version mapping and any compatibility limits

Workflow

  1. Determine the scope:
    • projects which don't belong to a particular angular major version,
    • specific versioned Angular fixtures,
    • or the whole repo.
  2. Inspect the current version mapping in:
    • root .nvmrc, docs/.nvmrc, tests-e2e/.nvmrc, and affected e2e/*/.nvmrc
    • compose.yml
    • .circleci/config.yml and any CI workflow that pins a Node version
    • root, docs, tests-e2e, and affected e2e package.json files
  3. Keep related version declarations aligned:
    • Docker image tag
    • .nvmrc
    • npm version
    • engines.npm
    • @types/node where applicable
  4. Do not assume every Angular fixture can move to the newest Node major. Preserve per-target compatibility unless the task explicitly changes that support boundary.
  5. Re-bootstrap changed targets with sh compose.sh <target>.
  6. Validate with sh test.sh for root, e2e, and every changed target.
  7. If changing dependency metadata requires a lockfile refresh, use the update-package-locks skill instead of an ad-hoc npm command.

Commands

# Bootstrap changed targets with a unique compose namespace.
COMPOSE_PROJECT_NAME=ngmocks_node_<unique> sh compose.sh root
COMPOSE_PROJECT_NAME=ngmocks_node_<unique> sh compose.sh e2e
COMPOSE_PROJECT_NAME=ngmocks_node_<unique> sh compose.sh <target>
COMPOSE_PROJECT_NAME=ngmocks_node_<unique> sh compose.sh docs

# Validate changed targets.
COMPOSE_PROJECT_NAME=ngmocks_node_<unique> sh test.sh root
COMPOSE_PROJECT_NAME=ngmocks_node_<unique> sh test.sh e2e
COMPOSE_PROJECT_NAME=ngmocks_node_<unique> sh test.sh <target>
COMPOSE_PROJECT_NAME=ngmocks_node_<unique> docker compose run --rm docs npm run build

Validation

  • COMPOSE_PROJECT_NAME=ngmocks_node_<unique> sh test.sh root
  • COMPOSE_PROJECT_NAME=ngmocks_node_<unique> sh test.sh e2e
  • COMPOSE_PROJECT_NAME=ngmocks_node_<unique> sh test.sh <target> for each target whose Node line changed
  • COMPOSE_PROJECT_NAME=ngmocks_node_<unique> docker compose run --rm docs npm run build when the docs Node line changed

Guardrails

  • Never assume the root Node version should also be used by every legacy Angular fixture.
  • Never use local npm install, npm update, or ad-hoc node commands for validation when wrapper commands exist.
  • Keep npm compatibility aligned with the chosen Node version.
  • Use one unique COMPOSE_PROJECT_NAME for all commands in the same worktree.
  • If a commit is requested for a pure Node-image update, use chore(docker): updating node images.