RuleLoadError

The Cause

A rule module was loaded but does not export its rule using a default export. Thymian rules and rule sets must be exported using export default (ES modules) or module.exports = (CommonJS).

The Solution

Make sure your rule file exports the rule or rule set as the default export.

For example, if you have a rule file my-rule.ts:

// ❌ Incorrect - named export
export const myRule = {
  /* rule definition */
};

// ✅ Correct - default export
export default {
  /* rule definition */
};