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The package.json declares "type": "module" but esbuild was configured with format: 'cjs', producing a CommonJS bundle that fails at runtime in ESM projects with "module is not defined in ES module scope". Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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Summary
format: 'cjs'→format: 'esm'inesbuild.jsThe package.json declares
"type": "module"but esbuild was producing a CommonJS bundle (module.exports), causing a runtime error in ESM consumers:Test plan
npm run buildproduces ESM output (importstatements instead ofmodule.exports)🤖 Generated with Claude Code