Agent skill

nodejs-package-json

Patch a Node.js project's package.json for standard build automation. Use when asked to add/standardize package.json scripts like prebuild/postbuild for TypeScript builds (rimraf dist + tsc-alias), adjust prebuild for Next.js (rimraf dist .next), or ensure an existing package.json pkg config includes required scripts/assets/targets/outputPath.

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Install this agent skill to your Project

npx add-skill https://github.com/shaowei-g/codex-skills/tree/main/skills/nodejs-package-json

SKILL.md

Node.js package.json

Goal

Quickly and safely update package.json to include:

  • scripts.prebuild: rimraf dist (or rimraf dist .next for Next.js)
  • scripts.postbuild: tsc-alias
  • If pkg config exists: ensure scripts/assets/targets/outputPath contain required entries

Workflow

  1. Run the patcher (auto-detects Next.js):

    • python3 "${CODEX_HOME:-$HOME/.codex}/skills/nodejs-package-json/scripts/patch_package_json.py" --path package.json

  2. If Next.js auto-detection is wrong, force it:

    • Force Next.js: --nextjs true
    • Force non-Next.js: --nextjs false

  3. If prebuild or postbuild already exist with different values:

    • Re-run with --force to overwrite to the recommended defaults.

Notes

  • This skill edits package.json only; it does not install dependencies. Ensure rimraf and tsc-alias are available (typically as devDependencies).
  • The patcher only edits pkg settings if a top-level pkg object already exists (it does not add one).

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