Files
copilotkit__copilotkit/packages/react-core/package.json
Alem Tuzlak d4a9bc3355 fix(react): resolve package types under bundler/node16/nodenext (#5264)
## Problem

The published declaration files for `@copilotkit/react-core`,
`@copilotkit/react-ui`, and `@copilotkit/react-textarea` contain imports
that TypeScript cannot resolve, so **`attw` (Are The Types Wrong)
reports `InternalResolutionError` across every resolution mode**
(`node10` / `node16` / `bundler`). In `@copilotkit/react-core` this was
being **masked in CI** by `--ignore-rules internal-resolution-error` on
the package's `attw` script — so the existing `check:packages` gate
looked green while consumers under `moduleResolution:
bundler`/`node16`/`nodenext` got broken types (the symptom reported in
#3324: `has no exported member 'useAgent'`, etc.).

Two distinct artifacts leaked into the emitted `.d.ts` / `.d.cts` /
`.d.mts` (neither affects the JS bundles):

1. **Side-effect CSS imports** — `import "./index.css"` is intentionally
kept in the JS so styles auto-load for bundler consumers, but
`rolldown-plugin-dts` also left it in the declarations, where TypeScript
can't resolve a `.css` as a typed module.
2. **Extensionless relative `./context` import** —
`@copilotkit/react-core/v2/headless` re-exports the externalized context
module; the JS bundle correctly externalizes it to
`@copilotkit/react-core/v2/context`, but the declaration kept the
relative `./context`, which is invalid in ESM declarations.

> Note: this is **not** the missing-`exports.types`-condition theory
from #3324. tsdown deliberately relies on co-located `.d.mts`/`.d.cts`
siblings; `@copilotkit/core` already resolves cleanly. The real defects
are the two leaked imports above.

## Fix

A small tsdown `build:done` hook post-processes the emitted declarations
**on disk** (after every format is written, so it catches both `.d.mts`
and `.d.cts`):

- strips side-effect CSS imports from declarations (JS keeps them);
- rewrites the relative `./context` import to the
`@copilotkit/react-core/v2/context` package path (matching how the JS
bundle externalizes it).

Also:
- **Removed the `--ignore-rules internal-resolution-error` band-aid**
from `react-core`'s `attw` script so the existing CI gate validates for
real.
- **Dropped the dead `codeSplitting` option** from the UMD configs —
tsdown never reads it (it's a rolldown-only key), and it was failing
`tsc` in the configs that type-check themselves. UMD output is unchanged
(single file).

## Verification

- All three packages build; **no CSS or relative-`./context` imports
remain in any declaration**, while the JS bundles still contain them
(styles auto-load preserved).
- `attw` + `publint` pass for all packages **with no suppression**
(`react-core`'s `/v2`, `/v2/headless`, `/v2/context` are green for
node16-cjs/esm/bundler).
- Unit tests pass.
- A standalone consumer project (real tarball install, `skipLibCheck:
false`) type-checks the public APIs — including `useAgent` /
`useFrontendTool` / `useConfigureSuggestions` — cleanly under **both
`bundler` and `nodenext`**, and the headless↔context class is nominally
identical.

## Out of scope (follow-ups)

- `@copilotkit/react-native`: its `--ignore-rules
internal-resolution-error` currently suppresses nothing (no IRE) and it
has a separate `NoResolution` flag.
- `@copilotkit/vue`: a large, genuine set of `.vue`/relative-import
declaration errors unrelated to this change.

Relates to #3324.

🤖 Generated with [Claude Code](https://claude.com/claude-code)
2026-07-09 18:42:07 +02:00

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JSON

{
"name": "@copilotkit/react-core",
"version": "1.62.3",
"private": false,
"keywords": [
"ai",
"assistant",
"automation",
"copilot",
"copilotkit",
"javascript",
"nextjs",
"nodejs",
"react",
"tanstack-intent",
"textarea"
],
"homepage": "https://github.com/CopilotKit/CopilotKit",
"license": "MIT",
"repository": {
"type": "git",
"url": "https://github.com/CopilotKit/CopilotKit.git"
},
"files": [
"dist",
"skills"
],
"type": "module",
"sideEffects": [
"**/*.css"
],
"main": "./dist/index.cjs",
"module": "./dist/index.mjs",
"types": "./dist/index.d.cts",
"unpkg": "./dist/index.umd.js",
"jsdelivr": "./dist/index.umd.js",
"exports": {
".": {
"import": "./dist/index.mjs",
"require": "./dist/index.cjs"
},
"./v2": {
"import": "./dist/v2/index.mjs",
"require": "./dist/v2/index.cjs"
},
"./package.json": "./package.json",
"./v2/context": {
"import": "./dist/v2/context.mjs",
"require": "./dist/v2/context.cjs"
},
"./v2/headless": {
"import": "./dist/v2/headless.mjs",
"require": "./dist/v2/headless.cjs"
},
"./v2/styles.css": "./dist/v2/index.css"
},
"publishConfig": {
"access": "public"
},
"scripts": {
"build:css": "tailwindcss -i ./src/v2/styles/globals.css -o ./dist/v2/index.css -m && node scripts/scope-preflight.mjs ./dist/v2/index.css",
"build": "tsdown && pnpm run build:css",
"size": "size-limit",
"size:headline": "node scripts/measure-copilotchat.mjs",
"compat-check": "es-check es2022 --module 'dist/**/!(*.umd).{mjs,cjs,js}' && es-check es2020 'dist/**/*.umd.js'",
"dev": "tsdown --watch",
"test": "vitest run && pnpm run test:scripts",
"test:scripts": "node --test scripts/__tests__/measure-copilotchat.test.mjs",
"test:watch": "vitest",
"check-types": "tsc --noEmit",
"link:global": "pnpm link --global",
"unlink:global": "pnpm unlink --global",
"publint": "publint .",
"attw": "attw --pack . --profile node16"
},
"dependencies": {
"@ag-ui/client": "0.0.57",
"@ag-ui/core": "0.0.57",
"@copilotkit/a2ui-renderer": "workspace:*",
"@copilotkit/core": "workspace:*",
"@copilotkit/runtime-client-gql": "workspace:*",
"@copilotkit/shared": "workspace:*",
"@copilotkit/web-components": "workspace:*",
"@copilotkit/web-inspector": "workspace:*",
"@jetbrains/websandbox": "^1.1.3",
"@lit-labs/react": "^2.0.2",
"@radix-ui/react-dropdown-menu": "^2.1.15",
"@radix-ui/react-slot": "^1.2.3",
"@radix-ui/react-tooltip": "^1.2.7",
"@scarf/scarf": "^1.3.0",
"@tanstack/react-virtual": "^3.13.0",
"class-variance-authority": "^0.7.1",
"clsx": "^2.1.1",
"katex": "^0.16.22",
"lit": "^3.3.2",
"lucide-react": "^0.525.0",
"react-markdown": "^8.0.7",
"rxjs": "7.8.1",
"streamdown": "^1.3.0",
"tailwind-merge": "^3.3.1",
"tw-animate-css": "^1.3.5",
"untruncate-json": "^0.0.1",
"use-stick-to-bottom": "^1.1.1",
"zod-to-json-schema": "^3.24.5"
},
"devDependencies": {
"@tailwindcss/cli": "^4.1.11",
"esbuild": "^0.27.0",
"@tailwindcss/postcss": "^4.1.11",
"@tailwindcss/typography": "^0.5.16",
"@tanstack/intent": "^0.0.29",
"@testing-library/jest-dom": "^6.0.0",
"@testing-library/react": "^16.3.0",
"@testing-library/react-hooks": "^8.0.1",
"@testing-library/user-event": "^14.0.0",
"@types/react": "^19.1.0",
"@types/react-dom": "^19.0.2",
"@valibot/to-json-schema": "^1.5.0",
"arktype": "^2.1.29",
"autoprefixer": "^10.4.20",
"concurrently": "^9.1.0",
"eslint": "^8.56.0",
"jsdom": "^26.1.0",
"phoenix": "^1.8.4",
"postcss": "^8.5.6",
"react": "^19.1.0",
"react-dom": "^19.2.0",
"tailwindcss": "^4.0.8",
"tsconfig": "workspace:*",
"tsdown": "^0.20.3",
"typescript": "^5.2.3",
"valibot": "^1.2.0",
"vitest": "^3.2.4",
"zod": ">=3.0.0"
},
"peerDependencies": {
"react": "^18 || ^19 || ^19.0.0-rc",
"react-dom": "^18 || ^19 || ^19.0.0-rc",
"zod": ">=3.0.0"
}
}