biome.jsonc

{
  "$schema": "https://biomejs.dev/schemas/2.5.2/schema.json",
  "vcs": { "enabled": true, "clientKind": "git", "useIgnoreFile": true },
  "files": {
    // Generated files (edit the source + `npm run gen:*` instead), goldens, and
    // formats Biome has no business linting (.svg brand art / compiled examples,
    // .vue SFCs where <script setup> imports are used by the template).
    "includes": [
      "**",
      "!editors/archlang.tmLanguage.json",
      "!editors/archlang.language-configuration.json",
      "!playground/src/arch-language.js",
      "!docs-site/.vitepress/theme/arch-highlight.js",
      "!spec.llm.md",
      "!docs/error-codes.md",
      "!schemas/plan.schema.json",
      "!schemas/intent.schema.json",
      // …and their docs-site copies (sync-docs.mjs copyFileSync — must stay byte-identical
      // to the generated sources, so the formatter must not touch them either):
      "!docs-site/public/plan.schema.json",
      "!docs-site/public/intent.schema.json",
      "!bench/baseline.json",
      "!test/__snapshots__",
      "!test/__goldens__",
      "!docs-site/.vitepress/cache",
      "!docs-site/.vitepress/theme/shims.d.ts",
      "!**/*.svg",
      "!**/*.vue"
    ]
  },
  "formatter": {
    "enabled": true,
    "indentStyle": "space",
    "indentWidth": 2,
    "lineWidth": 120
  },
  "javascript": {
    "formatter": {
      "quoteStyle": "double",
      "semicolons": "always",
      "trailingCommas": "all"
    }
  },
  "linter": {
    "enabled": true,
    "rules": {
      "preset": "recommended",
      "style": {
        // Deliberate idiom: `!` asserts structural invariants the code just checked.
        "noNonNullAssertion": "off",
        // String concat vs template literal is pure preference; not worth the churn.
        "useTemplate": "off"
      },
      // `any` is confined to the untyped optional-dep seam (pdfkit).
      "suspicious": { "noExplicitAny": "off" },
      // Existing site CSS uses !important on purpose in a few overrides.
      "complexity": { "noImportantStyles": "off" },
      // Deferred: playground/index.html button types get fixed in the playground
      // TypeScript migration; brand SVGs are art assets, not documents.
      "a11y": "off"
    }
  },
  "assist": {
    "actions": { "source": { "organizeImports": "off" } }
  }
}