[dreamwasp]

Overview

First PR in the split of #28. Adds the @skillsoft/gamut-codemods package with an empty scope-swap preset. Each breaking change brings its own migration in a stacked PR.

Stack (split from #28, merge in order):

1. feat(gamut-codemods): add the codemods CLI and an empty scope-swap preset #38 Scaffold, based on main 👈 this PR
2. feat(gamut-codemods): rename packages and replace gamut-kit in scope-swap #39 Package scope rename and gamut-kit removal, based on feat(gamut-codemods): add the codemods CLI and an empty scope-swap preset #38
3. feat(gamut-codemods): move Video imports and add Markdown video overrides #40 Video and Markdown, based on feat(gamut-codemods): rename packages and replace gamut-kit in scope-swap #39
4. feat(gamut)!: promote deep imports to the root, renaming Menu and SelectDropdown elements #41 Deep imports and Menu/SelectDropdown renames, based on feat(gamut-codemods): rename packages and replace gamut-kit in scope-swap #39
5. feat(gamut-codemods): rename the ESLint plugin prefix in scope-swap #42 ESLint plugin prefix, based on feat(gamut-codemods): rename packages and replace gamut-kit in scope-swap #39
6. feat(gamut-codemods): warn about esmExternals: false in next.config #43 Next.js esmExternals warning, based on feat(gamut-codemods): rename packages and replace gamut-kit in scope-swap #39
7. build(deps): make @skillsoft packages easier to install #44 Simpler dependencies (independent), based on main
8. feat(gamut-agent-tools): add the gamut-scope-swap skill #45 gamut-scope-swap skill (open last), based on feat(gamut-codemods): rename packages and replace gamut-kit in scope-swap #39, includes feat(gamut-codemods): move Video imports and add Markdown video overrides #40–feat(gamut-codemods): warn about esmExternals: false in next.config #43

• CLI: npx @skillsoft/gamut-codemods <preset> <path...>, plus list. Supports --dry, --only=a,b, --no-report, and --force. It refuses to write outside git or into a dirty tree, so git checkout . always undoes a run.
• Runner: three migration kinds: ast (recast reprints), splice (offset edits on the original text), and file (raw text for package.json, configs, .mdx). validatePreset enforces that every ast migration comes before any splice one.
• Shared helpers: finding every place a file names a module, the leftovers report, version-range checks, and flat ESLint config detection.
• Preset: the scope-swap manifest has the package rename map and the ESLint plugin prefix, but no migrations. A run reports every line that still names an old package and prints next steps.
• Tests: the fixture harness (<case>.input / .output / .warnings.json, plus an idempotence check), CLI tests, and manifest.test.ts. manifest.test.ts type-checks manifest rows against the built packages.
• Versioning: gamut-codemods, gamut-illustrations, and gamut-tests join the changesets fixed group.

PR Checklist

• Related to designs: N/A
• Related to JIRA ticket: GMT-1790
• Changeset added
• I have run this code to verify it works
• This PR includes unit tests for the code change
• This PR includes testing instructions for the code change
• Package previews from this PR are passing end-to-end tests in all relevant consuming repositories

Testing Instructions

1. yarn nx test gamut-codemods. Expect 48 tests to pass.

2. Build the CLI and run it on a throwaway repo:

   yarn nx build gamut-codemods
   mkdir -p /tmp/swap && cd /tmp/swap && git init -q
   printf "import { Box } from '@codecademy/gamut';\n" > a.tsx
   echo '{ "dependencies": { "@codecademy/gamut": "^73.0.0" } }' > package.json
   git add -A && git commit -qm init
   node <repo>/packages/gamut-codemods/dist/bin.js scope-swap .

   Nothing is rewritten. The leftovers list should show a.tsx:1 and package.json:1, followed by the three standing next steps.

3. Edit a.tsx without committing, then rerun. It should refuse and mention --force.

4. node <repo>/packages/gamut-codemods/dist/bin.js list prints scope-swap.

PR Links and Envs

Repository	PR Link
Mono	N/A

🤖 Generated with Claude Code

[pkg-pr-new]

Open in StackBlitz

@skillsoft/eslint-plugin-gamut

npm i https://pkg.pr.new/Codecademy/skillsoft-gamut/@skillsoft/eslint-plugin-gamut@38

yarn add https://pkg.pr.new/Codecademy/skillsoft-gamut/@skillsoft/eslint-plugin-gamut@38.tgz

@skillsoft/gamut

npm i https://pkg.pr.new/Codecademy/skillsoft-gamut/@skillsoft/gamut@38

yarn add https://pkg.pr.new/Codecademy/skillsoft-gamut/@skillsoft/gamut@38.tgz

@skillsoft/gamut-agent-tools

npm i https://pkg.pr.new/Codecademy/skillsoft-gamut/@skillsoft/gamut-agent-tools@38

yarn add https://pkg.pr.new/Codecademy/skillsoft-gamut/@skillsoft/gamut-agent-tools@38.tgz

@skillsoft/gamut-codemods

npm i https://pkg.pr.new/Codecademy/skillsoft-gamut/@skillsoft/gamut-codemods@38

yarn add https://pkg.pr.new/Codecademy/skillsoft-gamut/@skillsoft/gamut-codemods@38.tgz

@skillsoft/gamut-icons

npm i https://pkg.pr.new/Codecademy/skillsoft-gamut/@skillsoft/gamut-icons@38

yarn add https://pkg.pr.new/Codecademy/skillsoft-gamut/@skillsoft/gamut-icons@38.tgz

@skillsoft/gamut-illustrations

npm i https://pkg.pr.new/Codecademy/skillsoft-gamut/@skillsoft/gamut-illustrations@38

yarn add https://pkg.pr.new/Codecademy/skillsoft-gamut/@skillsoft/gamut-illustrations@38.tgz

@skillsoft/gamut-patterns

npm i https://pkg.pr.new/Codecademy/skillsoft-gamut/@skillsoft/gamut-patterns@38

yarn add https://pkg.pr.new/Codecademy/skillsoft-gamut/@skillsoft/gamut-patterns@38.tgz

@skillsoft/gamut-styles

npm i https://pkg.pr.new/Codecademy/skillsoft-gamut/@skillsoft/gamut-styles@38

yarn add https://pkg.pr.new/Codecademy/skillsoft-gamut/@skillsoft/gamut-styles@38.tgz

@skillsoft/gamut-tests

npm i https://pkg.pr.new/Codecademy/skillsoft-gamut/@skillsoft/gamut-tests@38

yarn add https://pkg.pr.new/Codecademy/skillsoft-gamut/@skillsoft/gamut-tests@38.tgz

@skillsoft/variance

npm i https://pkg.pr.new/Codecademy/skillsoft-gamut/@skillsoft/variance@38

yarn add https://pkg.pr.new/Codecademy/skillsoft-gamut/@skillsoft/variance@38.tgz

commit: e6923f5

[codecov]

Codecov Report

❌ Patch coverage is 80.96677% with 63 lines in your changes missing coverage. Please review.
⚠️ Please upload report for BASE (main@b3b7251). Learn more about missing BASE report.
✅ All tests successful. No failed tests found.

Files with missing lines	Patch %	Lines
packages/gamut-codemods/src/cli.ts	76.63%	25 Missing ⚠️
packages/gamut-codemods/src/lib/run-source.ts	47.05%	18 Missing ⚠️
packages/gamut-codemods/src/lib/manifest.ts	70.00%	9 Missing ⚠️
packages/gamut-codemods/src/transform.ts	70.00%	6 Missing ⚠️
packages/gamut-codemods/src/lib/module-strings.ts	85.71%	5 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##             main      #38   +/-   ##
=======================================
  Coverage        ?   80.96%           
=======================================
  Files           ?       11           
  Lines           ?      331           
  Branches        ?       94           
=======================================
  Hits            ?      268           
  Misses          ?       63           
  Partials        ?        0           

Flag	Coverage Δ
pull-request	80.96% <80.96%> (?)

Flags with carried forward coverage won't be shown. Click here to find out more.

☔ View full report in Codecov by Harness.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.