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fix: sync local SDK build into node_modules for examples (#504)

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npm workspaces hoists example dependencies to the root node_modules,
but installs the published registry copy of @modelcontextprotocol/ext-apps
instead of linking to the local source. This causes type-check failures
when examples use features not yet published to npm.

Add scripts/link-self.mjs which copies the freshly-built dist/ and
package.json into the hoisted node_modules copy after each SDK build,
ensuring examples always type-check against the latest local types.

See: https://github.com/npm/feedback/discussions/774
This commit is contained in:
Olivier Chafik 2026-02-24 21:20:59 +00:00 • committed by GitHub
commit 02737db779
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2 changed files with 15 additions and 1 deletions
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2
package.json
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@ -48,7 +48,7 @@
"start": "npm run examples:dev",
"generate:schemas": "tsx scripts/generate-schemas.ts && prettier --write \"src/generated/**/*\"",
"sync:snippets": "bun scripts/sync-snippets.ts",
"build": "npm run generate:schemas && npm run sync:snippets && node scripts/run-bun.mjs build.bun.ts",
"build": "npm run generate:schemas && npm run sync:snippets && node scripts/run-bun.mjs build.bun.ts && node scripts/link-self.mjs",
"prepack": "npm run build",
"build:all": "npm run examples:build",
"test": "bun test src",

14
scripts/link-self.mjs Normal file
View file

@ -0,0 +1,14 @@
/**
* Workaround: npm workspaces don't symlink the root package into node_modules
* when child workspaces depend on it — it installs a stale registry copy instead.
* This script syncs the freshly-built dist/ and package.json into that copy
* so examples always type-check against the latest local types.
* See: https://github.com/npm/feedback/discussions/774
*/
import { cpSync, existsSync } from "fs";
const target = "node_modules/@modelcontextprotocol/ext-apps";
if (!existsSync(target)) process.exit(0);
cpSync("dist", `${target}/dist`, { recursive: true });
cpSync("package.json", `${target}/package.json`);