exports rules

Validate the exports field in package.json — condition ordering, file existence, format matching, and more.

Rules (28)

Rule	Description	Severity	Fixable
type-module	Check that type: "module" is set appropriately	🔴 error	🔧
exports-field	Check that exports field exists in package.json	🔴 error	⚠️
dot-entry	Check that exports has a "." entry	🔴 error	⚠️
types-order	Check that types condition comes before default in exports	🔴 error	🔧
import-condition	Check that exports has an import condition	🔴 error	⚠️
file-exists	Check that files referenced in exports exist on disk	🟡 warning
value-invalid	Check that every string value in exports starts with ./	🔴 error
default-last	Check that "default" is the last key in every condition map	🔴 error	🔧
module-before-require	Check that "module" comes before "require" in condition maps	🟡 warning	🔧
imports-field	Validate package.json imports field	🔴 error
jsx-extensions	Check that exports don't use invalid JSX extensions	🔴 error
format-mismatch	Check that export file contents match the expected module format	🟡 warning
module-esm-only	Check that "module" condition in exports points to ESM content	🟡 warning
fallback-array	Warn against fallback arrays in exports	🟡 warning
types-format	Check that types conditions use the correct .d.mts/.d.cts extensions for dual packages	🟡 warning
condition-types	Check that export conditions with JS entries have sibling types	🟡 warning
no-deprecated-subpath	Warn on trailing / in exports keys (use /* instead)	🟡 warning
imports-key-invalid	Check that all imports field keys start with #	🔴 error
browser-conflict	Warn when both top-level browser field and exports exist	🟡 warning
browser-value-conflict	Detect when exports values are remapped by the browser field	🟡 warning
file-not-published	Check that files referenced in exports/main/bin are included in the published package	🔴 error
glob-matched-files	Validate that wildcard patterns in exports match at least one file	🟡 warning
cjs-esmodule-interop	Detect CJS files using __esModule interop pattern that may cause inconsistent bundler behavior	🟡 warning
cjs-default-export	Detect CJS-only packages with only a default export and no named exports	:blue_circle: info
types-first	Check that "types" is the first condition in every condition map	🔴 error	🔧
esm-main-no-exports	Warn when "main" is ESM but "exports" is missing	🟡 warning
module-no-exports	Warn when "module" field exists but "exports" is missing	🟡 warning
types-not-exported	Check that "types" field is also represented in exports conditions	🟡 warning