AntelopeJS · Upd4ting · Sep 11, 2026 · Sep 7, 2026 · Sep 7, 2026 · Sep 7, 2026
diff --git a/.git-blame-ignore-revs b/.git-blame-ignore-revs
@@ -0,0 +1,2 @@
+# Formatted with oxfmt when the repository moved off Biome.
+66e0e6c27749815c009b9f27b9b492f27465404d
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
@@ -28,4 +28,6 @@ jobs:
       - run: pnpm add --global @antelopejs/core
       - run: pnpm prepack
       - run: pnpm lint
+      - run: pnpm format:check
+      - run: pnpm knip
       - run: pnpm test
diff --git a/.github/workflows/stale.yml b/.github/workflows/stale.yml
@@ -1,8 +1,8 @@
-name: 'Close stale issues'
+name: "Close stale issues"
 
 on:
   schedule:
-    - cron: '30 * * * *'
+    - cron: "30 * * * *"
   workflow_dispatch:
 
 permissions:
@@ -17,8 +17,8 @@ jobs:
       - uses: actions/stale@v9
         with:
           exempt-issue-labels: pending
-          stale-issue-message: 'This issue is stale because it has been open 60 days with no activity. Remove stale label or comment or this will be closed in 30 days.'
-          close-issue-message: 'This issue was closed because it has been stalled for 30 days with no activity.'
+          stale-issue-message: "This issue is stale because it has been open 60 days with no activity. Remove stale label or comment or this will be closed in 30 days."
+          close-issue-message: "This issue was closed because it has been stalled for 30 days with no activity."
           days-before-stale: 60
           days-before-close: 30
           operations-per-run: 200

diff --git a/AGENTS.md b/AGENTS.md
@@ -8,7 +8,7 @@
 | --------------------- | --------------------------------------------------------------------------------------- |
 | English only          | All code must be in English: variable names, function names, comments                   |
 | PNPM only             | Always use pnpm, never npm or yarn                                                      |
-| NO COMMENTS | Code must be self-documenting through clear naming. TSDoc is allowed for public APIs              |
+| NO COMMENTS           | Code must be self-documenting through clear naming. TSDoc is allowed for public APIs    |
 | NO switch/case        | Use objects, maps, or arrays instead                                                    |
 | NO inline types       | Define proper interfaces/types, never use anonymous types like `{a: string, b: number}` |
 | Functions ≤ 40 lines  | Split into subfunctions if longer                                                       |
@@ -35,23 +35,23 @@ Never use `switch/case` or `if param === 'XXX'` chains. Instead:
 // BAD
 function getStatus(code: string) {
   switch (code) {
-    case 'A':
-      return 'Active';
-    case 'I':
-      return 'Inactive';
+    case "A":
+      return "Active";
+    case "I":
+      return "Inactive";
     default:
-      return 'Unknown';
+      return "Unknown";
   }
 }
 
 // GOOD
 const STATUS_MAP: Record<string, string> = {
-  A: 'Active',
-  I: 'Inactive',
+  A: "Active",
+  I: "Inactive",
 };
 
 function getStatus(code: string) {
-  return STATUS_MAP[code] ?? 'Unknown';
+  return STATUS_MAP[code] ?? "Unknown";
 }
 ```
 

diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -1,6 +1,5 @@
 # Changelog
 
-
 ## v0.1.2
 
 [compare changes](https://github.com/AntelopeJS/interface-api-util/compare/v0.1.1...v0.1.2)
@@ -67,12 +66,10 @@
 
 ## v0.0.2
 
-
 ### 🏡 Chore
 
 - Initial commit ([ee1b417](https://github.com/AntelopeJS/interface-api-util/commit/ee1b417))
 
 ### ❤️ Contributors
 
 - Antony Rizzitelli <upd4ting@gmail.com>
-
diff --git a/README.md b/README.md
@@ -23,4 +23,4 @@ Detailed documentation is available in the `docs` directory:
 
 ## License
 
-This project is licensed under the Apache License 2.0 - see the [LICENSE](LICENSE) file for details.
+This project is licensed under the Apache License 2.0 - see the [LICENSE](LICENSE) file for details.
diff --git a/biome.json b/biome.json
diff --git a/docs/1.introduction.md b/docs/1.introduction.md
@@ -17,14 +17,18 @@ npm install @antelopejs/interface-api-util
 The `assert` function checks whether a condition is truthy. If the condition is falsy, it throws an `HTTPResult` with the specified HTTP status code and error message.
 
 ```typescript
-function assert<T>(condition: T, code: number, message: string): asserts condition;
+function assert<T>(
+  condition: T,
+  code: number,
+  message: string,
+): asserts condition;
 ```
 
-| Parameter   | Type     | Description                                          |
-| ----------- | -------- | ---------------------------------------------------- |
-| `condition` | `T`      | The value to check (falsy values trigger the error)  |
-| `code`      | `number` | HTTP status code for the error response              |
-| `message`   | `string` | Error message included in the response body          |
+| Parameter   | Type     | Description                                         |
+| ----------- | -------- | --------------------------------------------------- |
+| `condition` | `T`      | The value to check (falsy values trigger the error) |
+| `code`      | `number` | HTTP status code for the error response             |
+| `message`   | `string` | Error message included in the response body         |
 
 The function uses TypeScript's `asserts` keyword, so the compiler narrows the type of `condition` to truthy after the call.
 
@@ -52,7 +56,11 @@ import { HTTPResult } from "@antelopejs/interface-api";
 async function deletePost(postId: string, currentUserId: string) {
   const post = await findPost(postId);
   assert(post, 404, "Post not found");
-  assert(post.authorId === currentUserId, 403, "Not authorized to delete this post");
+  assert(
+    post.authorId === currentUserId,
+    403,
+    "Not authorized to delete this post",
+  );
 
   await removePost(postId);
   return new HTTPResult(200, { deleted: true });
@@ -72,12 +80,12 @@ function assertValidation<T>(
 ): T;
 ```
 
-| Parameter   | Type                          | Default | Description                                             |
-| ----------- | ----------------------------- | ------- | ------------------------------------------------------- |
-| `body`      | `unknown`                     |         | The input value to validate                             |
-| `validator` | `(body: unknown) => T`        |         | A function that returns the validated value or throws   |
-| `errorFunc` | `(err: unknown) => unknown`   |         | Optional error transformer for customizing the response |
-| `code`      | `number`                      | `400`   | HTTP status code for the error response                 |
+| Parameter   | Type                        | Default | Description                                             |
+| ----------- | --------------------------- | ------- | ------------------------------------------------------- |
+| `body`      | `unknown`                   |         | The input value to validate                             |
+| `validator` | `(body: unknown) => T`      |         | A function that returns the validated value or throws   |
+| `errorFunc` | `(err: unknown) => unknown` |         | Optional error transformer for customizing the response |
+| `code`      | `number`                    | `400`   | HTTP status code for the error response                 |
 
 The function returns the validated value on success. On failure, it throws an `HTTPResult` whose body is either the result of `errorFunc` or the stringified error.
 
@@ -137,11 +145,11 @@ function RateLimit(
 ): MethodDecorator;
 ```
 
-| Parameter  | Type               | Description                                              |
-| ---------- | ------------------ | -------------------------------------------------------- |
-| `limit`    | `number`           | Maximum number of requests allowed per window            |
-| `windowMs` | `number`           | Window duration in milliseconds                          |
-| `options`  | `RateLimitOptions` | Optional custom key function and `429` response body     |
+| Parameter  | Type               | Description                                          |
+| ---------- | ------------------ | ---------------------------------------------------- |
+| `limit`    | `number`           | Maximum number of requests allowed per window        |
+| `windowMs` | `number`           | Window duration in milliseconds                      |
+| `options`  | `RateLimitOptions` | Optional custom key function and `429` response body |
 
 ```typescript
 interface RateLimitOptions {

diff --git a/knip.config.ts b/knip.config.ts
@@ -0,0 +1,14 @@
+import { antelopeKnipConfig } from "@antelopejs/tooling-configs/knip";
+
+export default antelopeKnipConfig({
+  entry: [
+    // `ajs module test` runs the compiled suites out of this tree, and reads
+    // src/antelope.test.ts (package.json antelopeJs.test) to build the test
+    // project; the preset only knows the `src/test/` spelling.
+    "src/tests/**/*.test.ts",
+    "src/antelope.test.ts",
+  ],
+  // `ajs` comes from @antelopejs/core, which CI installs globally rather than
+  // pulling the whole CLI into every module's dependency tree.
+  ignoreBinaries: ["ajs"],
+});
diff --git a/oxfmt.config.ts b/oxfmt.config.ts
@@ -0,0 +1,7 @@
+import { antelopeFmtPreset } from "@antelopejs/tooling-configs/oxc/fmt";
+
+export default antelopeFmtPreset({
+  // Drop once tooling-configs ships the shared ignore (AntelopeJS/tooling-configs#5):
+  // these are Markdown templates with a .yml extension, which oxfmt cannot parse.
+  ignorePatterns: [".github/ISSUE_TEMPLATE/**"],
+});
diff --git a/oxlint.config.ts b/oxlint.config.ts
@@ -0,0 +1,7 @@
+import { defineConfig } from "oxlint";
+import { antelopePreset } from "@antelopejs/tooling-configs/oxc/lint";
+
+export default defineConfig({
+  extends: [antelopePreset()],
+  options: { typeAware: true },
+});
diff --git a/package.json b/package.json
@@ -4,51 +4,55 @@
   "description": "AntelopeJS utility functions for API request validation and error handling",
   "keywords": [
     "antelopejs",
-    "interface",
     "api",
+    "interface",
     "validation"
   ],
+  "license": "Apache-2.0",
   "repository": {
     "type": "git",
     "url": "git+https://github.com/AntelopeJS/interface-api-util.git"
   },
-  "license": "Apache-2.0",
-  "packageManager": "pnpm@10.6.5",
-  "main": "dist/index.js",
-  "types": "dist/index.d.ts",
   "files": [
     "dist",
     "docs",
     "skills"
   ],
+  "main": "dist/index.js",
+  "types": "dist/index.d.ts",
   "exports": {
     ".": {
       "types": "./dist/index.d.ts",
       "default": "./dist/index.js"
     },
     "./package.json": "./package.json"
   },
+  "publishConfig": {
+    "access": "public",
+    "provenance": true
+  },
   "scripts": {
     "build": "rimraf dist && tsc",
-    "format": "biome format --write .",
-    "lint:fix": "biome check --write .",
-    "lint": "biome check .",
+    "format": "oxfmt .",
+    "lint:fix": "oxlint --fix",
+    "lint": "oxlint",
     "prepack": "pnpm run build",
     "release": "pnpm run lint && pnpm run prepack && release-it",
-    "test": "pnpm run build && ajs module test ."
-  },
-  "antelopeJs": {
-    "test": "src/antelope.test.ts",
-    "skills": [
-      "./skills"
-    ]
+    "test": "pnpm run build && ajs module test .",
+    "format:check": "oxfmt --check .",
+    "knip": "knip"
   },
   "devDependencies": {
     "@antelopejs/interface-api": "^0.0.5",
     "@antelopejs/interface-core": "^0.0.5",
-    "@biomejs/biome": "2.3.2",
+    "@antelopejs/tooling-configs": "^0.0.4",
     "@types/mocha": "^10.0.10",
     "@types/node": "^22.19.15",
+    "eslint-plugin-perfectionist": "^5.11.0",
+    "knip": "^6.34.0",
+    "oxfmt": "^0.66.0",
+    "oxlint": "1.81.0",
+    "oxlint-tsgolint": "^7.0.2001",
     "release-it": "^19.2.4",
     "release-it-changelogen": "^0.1.0",
     "rimraf": "^6.1.3",
@@ -58,8 +62,11 @@
     "@antelopejs/interface-api": ">=0.0.3 <1.0.0",
     "@antelopejs/interface-core": ">=0.0.3 <1.0.0"
   },
-  "publishConfig": {
-    "access": "public",
-    "provenance": true
+  "packageManager": "pnpm@10.6.5",
+  "antelopeJs": {
+    "test": "src/antelope.test.ts",
+    "skills": [
+      "./skills"
+    ]
   }
 }
Original file line number	Diff line number	Diff line change
		@@ -0,0 +1,2 @@
		# Formatted with oxfmt when the repository moved off Biome.
		66e0e6c27749815c009b9f27b9b492f27465404d
Original file line number	Diff line number	Diff line change
Expand Up		@@ -23,4 +23,4 @@ Detailed documentation is available in the `docs` directory:

		## License

		This project is licensed under the Apache License 2.0 - see the [LICENSE](LICENSE) file for details.
		This project is licensed under the Apache License 2.0 - see the [LICENSE](LICENSE) file for details.