chore: Migrate to Ultracite

.oxfmtrc.jsonc

@@ -1,11 +1,29 @@
+// Ultracite oxfmt Configuration
+// https://oxc.rs/docs/guide/usage/formatter/config-file-reference.html
 {
   "$schema": "./node_modules/oxfmt/configuration_schema.json",
-  // Use Prettier v2 defaults (the repo was on v2.8.7)
   "printWidth": 80,
-  // No trailing commas - required for JSON compatibility
+  "tabWidth": 2,
+  "useTabs": false,
+  "semi": true,
+  "singleQuote": false,
+  "quoteProps": "as-needed",
+  "jsxSingleQuote": false,
   "trailingComma": "none",
-  // Disable formatting of embedded code blocks (JSON in markdown)
-  "embeddedLanguageFormatting": "off",
-  // Disable features that differ from Prettier defaults
-  "experimentalSortPackageJson": false
+  "bracketSpacing": true,
+  "bracketSameLine": false,
+  "arrowParens": "always",
+  "endOfLine": "lf",
+  "ignorePatterns": [
+    "build/",
+    "crates/",
+    "cli/",
+    "examples/",
+    "packages/eslint-plugin-turbo/__fixtures__",
+    "packages/create-turbo/templates",
+    "turborepo-tests/",
+    "buildcontainer/",
+    "scripts/",
+    "apps/docs"
+  ]
 }

.oxlintrc.json

@@ -1,5 +1,6 @@
 {
-  "$schema": "https://raw.githubusercontent.com/oxc-project/oxlint/main/npm/oxlint/configuration_schema.json",
+  "$schema": "./node_modules/oxlint/configuration_schema.json",
+  "extends": ["./node_modules/ultracite/config/oxlint/core/.oxlintrc.json"],
   "ignorePatterns": [
     "build/",
     "crates/",
@@ -10,41 +11,139 @@
     "turborepo-tests/",
     "buildcontainer/",
     "scripts/",
-    ".github/",
-    ".devcontainer/",
-    ".cargo/",
-    ".config/",
-    ".cursor/",
-    ".vscode/",
-    ".husky/",
-    ".conductor/"
+    "apps/docs"
   ],
   "rules": {
-    "no-unused-vars": [
-      "warn",
-      {
-        "vars": "all",
-        "varsIgnorePattern": "^_",
-        "args": "after-used",
-        "argsIgnorePattern": "^_",
-        "caughtErrors": "none",
-        "destructuredArrayIgnorePattern": "^_"
-      }
-    ],
-    "unicorn/no-empty-file": "off"
-  },
-  "overrides": [
-    {
-      "files": ["**/__fixtures__/**/*", "**/fixtures/**/*"],
-      "rules": {
-        "no-unused-expressions": "off"
-      }
-    },
-    {
-      "files": ["**/next-env.d.ts"],
-      "rules": {
-        "@typescript-eslint/triple-slash-reference": "off"
-      }
-    }
-  ]
+    "jest/no-confusing-set-timeout": "off",
+    "jest/no-untyped-mock-factory": "off",
+    "func-style": "off",
+    "sort-keys": "off",
+    "import/no-relative-parent-imports": "off",
+    "import/no-nodejs-modules": "off",
+    "max-statements": "off",
+    "jest/no-conditional-in-test": "off",
+    "jest/require-hook": "off",
+    "no-inline-comments": "off",
+    "unicorn/numeric-separators-style": "off",
+    "typescript/consistent-type-definitions": "off",
+    "no-use-before-define": "off",
+    "promise/prefer-await-to-then": "off",
+    "jsdoc/check-tag-names": "off",
+    "jest/no-conditional-expect": "off",
+    "promise/prefer-await-to-callbacks": "off",
+    "require-await": "off",
+    "jest/valid-title": "off",
+    "jest/max-expects": "off",
+    "jest/no-hooks": "off",
+    "typescript/no-explicit-any": "off",
+    "no-unused-vars": "off",
+    "no-plusplus": "off",
+    "prefer-template": "off",
+    "prefer-destructuring": "off",
+    "no-shadow": "off",
+    "no-negated-condition": "off",
+    "typescript/no-non-null-assertion": "off",
+    "unicorn/consistent-function-scoping": "off",
+    "vitest/no-import-node-test": "off",
+    "no-useless-return": "off",
+    "no-unused-expressions": "off",
+    "promise/avoid-new": "off",
+    "class-methods-use-this": "off",
+    "no-empty-function": "off",
+    "no-new": "off",
+    "unicorn/no-empty-file": "off",
+    "default-case": "off",
+    "typescript/consistent-type-imports": "off",
+    "unicorn/prefer-spread": "off",
+    "no-alert": "off",
+    "vitest/consistent-test-filename": "off",
+    "jest/require-top-level-describe": "off",
+    "import/no-named-as-default-member": "off",
+    "complexity": "off",
+    "no-void": "off",
+    "no-warning-comments": "off",
+    "unicorn/prefer-logical-operator-over-ternary": "off",
+    "unicorn/no-await-expression-member": "off",
+    "unicorn/prefer-add-event-listener": "off",
+    "unicorn/no-immediate-mutation": "off",
+    "import/no-named-as-default": "off",
+    "no-nested-ternary": "off",
+    "unicorn/no-array-reduce": "off",
+    "jsdoc/require-param-type": "off",
+    "typescript/ban-types": "off",
+    "import/no-absolute-path": "off",
+    "unicorn/new-for-builtins": "off",
+    "promise/no-nesting": "off",
+    "typescript/parameter-properties": "off",
+    "no-promise-executor-return": "off",
+    "jest/prefer-each": "off",
+    "unicorn/no-useless-error-capture-stack-trace": "off",
+    "unicorn/no-abusive-eslint-disable": "off",
+    "unicorn/no-object-as-default-parameter": "off",
+    "oxc/no-accumulating-spread": "off",
+    "jsdoc/require-returns-type": "off",
+    "promise/param-names": "off",
+    "typescript/no-unsafe-function-type": "off",
+    "node/global-require": "off",
+    "jest/expect-expect": "off",
+    "import/default": "off",
+    "import/no-cycle": "off",
+    "import/no-duplicates": "off",
+    "no-duplicate-imports": "off",
+    "typescript/no-extraneous-class": "off",
+    "unicorn/no-lonely-if": "off",
+    "typescript/no-empty-object-type": "off",
+    "eqeqeq": "off",
+    "unicorn/prefer-response-static-json": "off",
+    "array-callback-return": "off",
+    "import/no-webpack-loader-syntax": "off",
+    "unicorn/prefer-object-from-entries": "off",
+    "unicorn/prefer-array-find": "off",
+    "promise/no-multiple-resolved": "off",
+    "unicorn/prefer-modern-math-apis": "off",
+    "unicorn/no-useless-switch-case": "off",
+    "typescript/no-inferrable-types": "off",
+    "func-names": "off",
+    "guard-for-in": "off",
+    "typescript/ban-ts-comment": "off",
+    "jest/no-done-callback": "off",
+    "no-eq-null": "off",
+    "no-param-reassign": "off",
+    "unicorn/no-document-cookie": "off",
+    "unicorn/no-useless-collection-argument": "off",
+    "oxc/no-barrel-file": "off",
+    "unicorn/require-post-message-target-origin": "off",
+    "jest/prefer-to-be": "off",
+    "unicorn/prefer-string-replace-all": "off",
+    "vitest/prefer-to-be-truthy": "off",
+    "typescript/array-type": "off",
+    "jest/consistent-test-it": "off",
+    "unicorn/text-encoding-identifier-case": "off",
+    "unicorn/no-nested-ternary": "off",
+    "unicorn/no-array-sort": "off",
+    "arrow-body-style": "off",
+    "curly": "off",
+    "unicorn/no-useless-undefined": "off",
+    "unicorn/catch-error-name": "off",
+    "unicorn/prefer-optional-catch-binding": "off",
+    "import/consistent-type-specifier-style": "off",
+    "typescript/no-import-type-side-effects": "off",
+    "typescript/consistent-indexed-object-style": "off",
+    "unicorn/prefer-set-has": "off",
+    "vars-on-top": "off",
+    "unicorn/throw-new-error": "off",
+    "typescript/prefer-ts-expect-error": "off",
+    "unicorn/no-console-spaces": "off",
+    "preserve-caught-error": "off",
+    "vitest/prefer-to-be-falsy": "off",
+    "typescript/prefer-function-type": "off",
+    "jest/prefer-strict-equal": "off",
+    "vitest/prefer-called-once": "off",
+    "vitest/prefer-describe-function-title": "off",
+    "jest/prefer-called-with": "off",
+    "vitest/prefer-import-in-mock": "off",
+    "jest/prefer-lowercase-title": "off",
+    "unicorn/prefer-string-slice": "off",
+    "typescript/ban-tslint-comment": "off"
+  }
 }

.prettierignore

@@ -33,3 +33,6 @@ __generated__/
 *.toml
 
 apps/docs/content/openapi/**/*.mdx
+
+# oxfmt parse error
+packages/turbo-utils/__tests__/convertCase.test.ts

.vscode/settings.json

@@ -1,11 +1,4 @@
 {
-  "eslint.validate": [
-    "javascript",
-    "javascriptreact",
-    "typescript",
-    "typescriptreact"
-  ],
-  "eslint.workingDirectories": [{ "mode": "auto" }],
   "debug.javascript.unmapMissingSources": true,
   "files.associations": {
     "libturbo.h": "c",
@@ -18,11 +11,66 @@
     "files.insertFinalNewline": false,
     "files.trimTrailingWhitespace": false
   },
+  "editor.defaultFormatter": "esbenp.prettier-vscode",
   "typescript.tsdk": "node_modules/typescript/lib",
   "json.schemas": [
     {
       "fileMatch": ["turbo.json"],
       "url": "./packages/turbo-types/schemas/schema.json"
     }
-  ]
+  ],
+  "editor.formatOnSave": true,
+  "editor.formatOnPaste": true,
+  "emmet.showExpandedAbbreviation": "never",
+  "[javascript]": {
+    "editor.defaultFormatter": "oxc.oxc-vscode"
+  },
+  "[javascriptreact]": {
+    "editor.defaultFormatter": "oxc.oxc-vscode"
+  },
+  "[typescript]": {
+    "editor.defaultFormatter": "oxc.oxc-vscode"
+  },
+  "[typescriptreact]": {
+    "editor.defaultFormatter": "oxc.oxc-vscode"
+  },
+  "[json]": {
+    "editor.defaultFormatter": "oxc.oxc-vscode"
+  },
+  "[jsonc]": {
+    "editor.defaultFormatter": "oxc.oxc-vscode"
+  },
+  "[yaml]": {
+    "editor.defaultFormatter": "oxc.oxc-vscode"
+  },
+  "[html]": {
+    "editor.defaultFormatter": "oxc.oxc-vscode"
+  },
+  "[vue]": {
+    "editor.defaultFormatter": "oxc.oxc-vscode"
+  },
+  "[vue-html]": {
+    "editor.defaultFormatter": "oxc.oxc-vscode"
+  },
+  "[handlebars]": {
+    "editor.defaultFormatter": "oxc.oxc-vscode"
+  },
+  "[css]": {
+    "editor.defaultFormatter": "oxc.oxc-vscode"
+  },
+  "[scss]": {
+    "editor.defaultFormatter": "oxc.oxc-vscode"
+  },
+  "[less]": {
+    "editor.defaultFormatter": "oxc.oxc-vscode"
+  },
+  "[graphql]": {
+    "editor.defaultFormatter": "oxc.oxc-vscode"
+  },
+  "[markdown]": {
+    "editor.defaultFormatter": "oxc.oxc-vscode"
+  },
+  "editor.codeActionsOnSave": {
+    "source.fixAll.oxc": "explicit"
+  }
 }

apps/agents/app/api/slack/actions/route.ts

@@ -38,7 +38,7 @@ export async function POST(request: Request) {
 
   switch (action.action_id) {
     case "approve_repro_request": {
-      const issueNumber = parseInt(action.value ?? "0", 10);
+      const issueNumber = Number.parseInt(action.value ?? "0", 10);
       if (!issueNumber) break;
 
       await addComment(issueNumber, REPRODUCTION_REQUEST);
@@ -51,7 +51,7 @@ export async function POST(request: Request) {
     }
 
     case "repro_dismiss": {
-      const issueNumber = parseInt(action.value ?? "0", 10);
+      const issueNumber = Number.parseInt(action.value ?? "0", 10);
       const issueRef = issueNumber
         ? ` for <https://github.com/vercel/turborepo/issues/${issueNumber}|#${issueNumber}>`
         : "";
@@ -63,8 +63,9 @@ export async function POST(request: Request) {
       break;
     }
 
-    default:
+    default: {
       break;
+    }
   }
 
   return new Response("OK", { status: 200 });

apps/agents/lib/slack.ts

@@ -22,7 +22,7 @@ export async function verifySlackRequest(
   }
 
   const fiveMinutesAgo = Math.floor(Date.now() / 1000) - 60 * 5;
-  if (parseInt(timestamp, 10) < fiveMinutesAgo) {
+  if (Number.parseInt(timestamp, 10) < fiveMinutesAgo) {
     throw new Error("Slack request too old");
   }
 

apps/agents/sandbox/audit-fix-agent.mjs

@@ -115,7 +115,7 @@ const agent = new ToolLoopAgent({
       ),
       execute: async function ({ command, cwd, allowFailure }) {
         console.log("$ " + command);
-        var output = shell(command, {
+        const output = shell(command, {
           cwd: cwd ?? REPO_DIR,
           allowFailure: allowFailure ?? false
         });
@@ -131,7 +131,7 @@ const agent = new ToolLoopAgent({
         })
       ),
       execute: async function ({ path }) {
-        var fullPath = REPO_DIR + "/" + path;
+        const fullPath = REPO_DIR + "/" + path;
         if (!existsSync(fullPath)) {
           return "File not found: " + path;
         }
@@ -148,7 +148,7 @@ const agent = new ToolLoopAgent({
         })
       ),
       execute: async function ({ path, content }) {
-        var fullPath = REPO_DIR + "/" + path;
+        const fullPath = REPO_DIR + "/" + path;
         writeFileSync(fullPath, content, "utf-8");
         return "Wrote " + content.length + " bytes to " + path;
       }
@@ -164,7 +164,7 @@ const agent = new ToolLoopAgent({
         })
       ),
       execute: async function ({ pattern }) {
-        var output = shell("find . -path './" + pattern + "' | head -50", {
+        const output = shell("find . -path './" + pattern + "' | head -50", {
           allowFailure: true
         });
         return output || "(no matches)";
@@ -201,14 +201,14 @@ async function main() {
   console.log("Starting audit fix agent...");
 
   try {
-    var result = await agent.generate({
+    const result = await agent.generate({
       prompt:
         "Run security audits on this repo and fix the vulnerabilities. Follow the strategy in your instructions exactly — audit, fix manifests, reinstall, verify, report. Do not over-analyze. Act quickly."
     });
 
     console.log("\nAgent finished.");
 
-    var reportCall = result.steps
+    const reportCall = result.steps
       .flatMap(function (s) {
         return s.toolCalls ?? [];
       })