eslint.config.mjs

import eslint from '@eslint/js';
import tseslint from 'typescript-eslint';
import eslintConfigPrettier from 'eslint-config-prettier';

export default tseslint.config(
  {
    ignores: [
      '**/dist/**',
      '**/node_modules/**',
      '**/coverage/**',
      '**/.turbo/**',
    ],
  },
  eslint.configs.recommended,
  ...tseslint.configs.recommended,
  {
    rules: {
      '@typescript-eslint/no-explicit-any': 'warn',
      '@typescript-eslint/no-unused-vars': [
        'warn',
        { argsIgnorePattern: '^_' },
      ],
    },
  },
  {
    // Store/algorithm tests commonly do `let state; ...process(state)...; state = result.state;`
    // to thread reducer state through a stateful sequence of calls - a deliberate pattern the
    // mutation-tracking rules below misread as dead/reassignable code.
    files: [
      '**/__tests__/**/*.ts',
      '**/tests/**/*.ts',
      '**/*.test.ts',
      '**/*.spec.ts',
    ],
    rules: {
      'prefer-const': 'off',
      'no-useless-assignment': 'off',
      'no-unassigned-vars': 'off',
    },
  },
  {
    // Build/test tooling and Claude Code hooks are plain Node CommonJS scripts,
    // unlike the ESM library source under packages/*/src.
    files: ['**/jest.config.js', '**/build.js', '.claude/hooks/**/*.js'],
    languageOptions: {
      sourceType: 'commonjs',
      globals: {
        module: 'writable',
        require: 'readonly',
        process: 'readonly',
        console: 'readonly',
        __dirname: 'readonly',
        __filename: 'readonly',
      },
    },
    rules: {
      '@typescript-eslint/no-require-imports': 'off',
    },
  },
  eslintConfigPrettier,
);