`src` holds 321 TypeScript files and no JavaScript, so four settings that
existed only to let the two coexist have nothing left to act on. Each was
removed on its own and validated before the next.
allowJs / checkJs Removed together, because they are coupled: `checkJs`
without `allowJs` is TS5052, a configuration error
rather than a code one. Verified first that nothing
under `src` imports a `.js` module. The program still
resolves the same 321 files and still reports 0 errors.
This also closes a door. With `allowJs` on, a `.js`
file added under `src` would be compiled and bundled
silently; now it is a resolution failure, which is the
right outcome for a codebase that has finished
migrating.
jsconfig.json Deleted. It had been inert since `tsconfig.json`
appeared — TypeScript ignores a jsconfig wherever a
tsconfig sits beside it — and it still carried the old
`types: []` and the three stale excludes. A second,
unread copy of the options is an invitation to edit the
wrong file.
components.json `"tsx": false` -> `true`, so `npx shadcn add` emits
TSX. No runtime effect; it would have quietly
reintroduced `.jsx` into a repository that has none.
`README.md` documented `npm run typecheck` as `tsc -p ./jsconfig.json`
with `checkJs`, which named a file that no longer exists. Corrected, along
with a stale assertion count in the same table (835, against 1691 today).
No file under `src` changed, so there is nothing for a per-file emitted-JS
comparison to compare; the bundle hash is the check that matters and it is
unmoved.
typecheck 0 errors, 321 files in the program
lint exit 0
npm test 1684/1691, the same 7 failures
owliver unchanged; baselines still pinned, not recaptured
build exit 0, bundle 74d17e2d… identical
Left in place deliberately, reported rather than removed:
`scripts/ssr-resolve.mjs`. Its own comment says it can go once `src` holds
no `.js`, but that is only half the condition — the 203 literal `.js`
paths inside `skill-check.mjs` would all have to be renamed first, and
that is a large diff against the file that guards this migration.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01HBG1wnuRfJKCstGB8Fekr8
