diff --git a/biome.json b/biome.json
index d1f6db5..4b9c699 100644
--- a/biome.json
+++ b/biome.json
@@ -1,5 +1,5 @@
 {
-  "$schema": "https://biomejs.dev/schemas/2.1.2/schema.json",
+  "$schema": "https://biomejs.dev/schemas/2.5.13/schema.json",
   "files": {
     "includes": ["src/**/*.ts", "tests/**/*.ts", "scripts/**/*.ts"]
   },
diff --git a/package-lock.json b/package-lock.json
index 589d9a1..cc64f2e 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -18,7 +18,7 @@
         "asana-command-mcp": "dist/index.js"
       },
       "devDependencies": {
-        "@biomejs/biome": "2.1.2",
+        "@biomejs/biome": "2.5.13",
         "@types/node": "26.5.0",
         "tsup": "8.5.1",
         "typescript": "7.0.2",
@@ -298,9 +298,9 @@
       }
     },
     "node_modules/@biomejs/biome": {
-      "version": "2.1.2",
-      "resolved": "https://registry.npmjs.org/@biomejs/biome/-/biome-2.1.2.tgz",
-      "integrity": "sha512-yq8ZZuKuBVDgAS76LWCfFKHSYIAgqkxVB3mGVVpOe2vSkUTs7xG46zXZeNPRNVjiJuw0SZ3+J2rXiYx0RUpfGg==",
+      "version": "2.5.13",
+      "resolved": "https://registry.npmjs.org/@biomejs/biome/-/biome-2.5.13.tgz",
+      "integrity": "sha512-+SEC/mFk1a+5mvUANZgbZTaiZXs1nj4iMhL/PHiqDT5TPUEPFIlliEtkKKZB4N862yylHC3UI+/Sj2I0HJEqhA==",
       "dev": true,
       "license": "MIT OR Apache-2.0",
       "bin": {
@@ -314,20 +314,20 @@
         "url": "https://opencollective.com/biome"
       },
       "optionalDependencies": {
-        "@biomejs/cli-darwin-arm64": "2.1.2",
-        "@biomejs/cli-darwin-x64": "2.1.2",
-        "@biomejs/cli-linux-arm64": "2.1.2",
-        "@biomejs/cli-linux-arm64-musl": "2.1.2",
-        "@biomejs/cli-linux-x64": "2.1.2",
-        "@biomejs/cli-linux-x64-musl": "2.1.2",
-        "@biomejs/cli-win32-arm64": "2.1.2",
-        "@biomejs/cli-win32-x64": "2.1.2"
+        "@biomejs/cli-darwin-arm64": "2.5.13",
+        "@biomejs/cli-darwin-x64": "2.5.13",
+        "@biomejs/cli-linux-arm64": "2.5.13",
+        "@biomejs/cli-linux-arm64-musl": "2.5.13",
+        "@biomejs/cli-linux-x64": "2.5.13",
+        "@biomejs/cli-linux-x64-musl": "2.5.13",
+        "@biomejs/cli-win32-arm64": "2.5.13",
+        "@biomejs/cli-win32-x64": "2.5.13"
       }
     },
     "node_modules/@biomejs/cli-darwin-arm64": {
-      "version": "2.1.2",
-      "resolved": "https://registry.npmjs.org/@biomejs/cli-darwin-arm64/-/cli-darwin-arm64-2.1.2.tgz",
-      "integrity": "sha512-leFAks64PEIjc7MY/cLjE8u5OcfBKkcDB0szxsWUB4aDfemBep1WVKt0qrEyqZBOW8LPHzrFMyDl3FhuuA0E7g==",
+      "version": "2.5.13",
+      "resolved": "https://registry.npmjs.org/@biomejs/cli-darwin-arm64/-/cli-darwin-arm64-2.5.13.tgz",
+      "integrity": "sha512-nYSuDJ6zgVqZUkAkJkvhXxsF2PYIrUk/g638K4voCXz7foI9f7b6C2/7+oAihsHQlivZNMUrm/y8ywlcHQtZOw==",
       "cpu": [
         "arm64"
       ],
@@ -342,9 +342,9 @@
       }
     },
     "node_modules/@biomejs/cli-darwin-x64": {
-      "version": "2.1.2",
-      "resolved": "https://registry.npmjs.org/@biomejs/cli-darwin-x64/-/cli-darwin-x64-2.1.2.tgz",
-      "integrity": "sha512-Nmmv7wRX5Nj7lGmz0FjnWdflJg4zii8Ivruas6PBKzw5SJX/q+Zh2RfnO+bBnuKLXpj8kiI2x2X12otpH6a32A==",
+      "version": "2.5.13",
+      "resolved": "https://registry.npmjs.org/@biomejs/cli-darwin-x64/-/cli-darwin-x64-2.5.13.tgz",
+      "integrity": "sha512-KVy1ceEDuJ3AzFxjT9kkxbVy+UANw1pjEMUS6lvKfxjJ+fmkRvc7sQn1Xo6ETgseEI7wUQoV03KSga3XfE8YRQ==",
       "cpu": [
         "x64"
       ],
@@ -359,13 +359,16 @@
       }
     },
     "node_modules/@biomejs/cli-linux-arm64": {
-      "version": "2.1.2",
-      "resolved": "https://registry.npmjs.org/@biomejs/cli-linux-arm64/-/cli-linux-arm64-2.1.2.tgz",
-      "integrity": "sha512-NWNy2Diocav61HZiv2enTQykbPP/KrA/baS7JsLSojC7Xxh2nl9IczuvE5UID7+ksRy2e7yH7klm/WkA72G1dw==",
+      "version": "2.5.13",
+      "resolved": "https://registry.npmjs.org/@biomejs/cli-linux-arm64/-/cli-linux-arm64-2.5.13.tgz",
+      "integrity": "sha512-VlNMtoxOqs0dUR6drxxHr18SNUvI7xxAuHZlH4s/dstYSf3g6RaqVgo8JRnhcOhKz9afWrvtJTboNG1JuYlIDQ==",
       "cpu": [
         "arm64"
       ],
       "dev": true,
+      "libc": [
+        "glibc"
+      ],
       "license": "MIT OR Apache-2.0",
       "optional": true,
       "os": [
@@ -376,13 +379,16 @@
       }
     },
     "node_modules/@biomejs/cli-linux-arm64-musl": {
-      "version": "2.1.2",
-      "resolved": "https://registry.npmjs.org/@biomejs/cli-linux-arm64-musl/-/cli-linux-arm64-musl-2.1.2.tgz",
-      "integrity": "sha512-qgHvafhjH7Oca114FdOScmIKf1DlXT1LqbOrrbR30kQDLFPEOpBG0uzx6MhmsrmhGiCFCr2obDamu+czk+X0HQ==",
+      "version": "2.5.13",
+      "resolved": "https://registry.npmjs.org/@biomejs/cli-linux-arm64-musl/-/cli-linux-arm64-musl-2.5.13.tgz",
+      "integrity": "sha512-CH32xpep3dNS5EVJpAHlYchkBYznxyVZQrx0b6YYYlPL9u9ZeD2NtqiK/6s64+HFS2a7hGnryLlqqZAOh8ax5g==",
       "cpu": [
         "arm64"
       ],
       "dev": true,
+      "libc": [
+        "musl"
+      ],
       "license": "MIT OR Apache-2.0",
       "optional": true,
       "os": [
@@ -393,13 +399,16 @@
       }
     },
     "node_modules/@biomejs/cli-linux-x64": {
-      "version": "2.1.2",
-      "resolved": "https://registry.npmjs.org/@biomejs/cli-linux-x64/-/cli-linux-x64-2.1.2.tgz",
-      "integrity": "sha512-Km/UYeVowygTjpX6sGBzlizjakLoMQkxWbruVZSNE6osuSI63i4uCeIL+6q2AJlD3dxoiBJX70dn1enjQnQqwA==",
+      "version": "2.5.13",
+      "resolved": "https://registry.npmjs.org/@biomejs/cli-linux-x64/-/cli-linux-x64-2.5.13.tgz",
+      "integrity": "sha512-Fi6gIxbUaJ3ZCIXeG3ggIBPF76O2DjDN67WrPX/ODRv54GeXPm2gbEPC96Yb0yrJoiH0Eax1JLx1Pi0XbsNFZQ==",
       "cpu": [
         "x64"
       ],
       "dev": true,
+      "libc": [
+        "glibc"
+      ],
       "license": "MIT OR Apache-2.0",
       "optional": true,
       "os": [
@@ -410,13 +419,16 @@
       }
     },
     "node_modules/@biomejs/cli-linux-x64-musl": {
-      "version": "2.1.2",
-      "resolved": "https://registry.npmjs.org/@biomejs/cli-linux-x64-musl/-/cli-linux-x64-musl-2.1.2.tgz",
-      "integrity": "sha512-xlB3mU14ZUa3wzLtXfmk2IMOGL+S0aHFhSix/nssWS/2XlD27q+S6f0dlQ8WOCbYoXcuz8BCM7rCn2lxdTrlQA==",
+      "version": "2.5.13",
+      "resolved": "https://registry.npmjs.org/@biomejs/cli-linux-x64-musl/-/cli-linux-x64-musl-2.5.13.tgz",
+      "integrity": "sha512-F3pmwl+VHoUuVJN/tbNLKeLt0SVK3EIyN1jXlMcNyQGYRQQTVqXF+GgkP0/CjGXFN87e/mv0sBfUnWqWza5PKQ==",
       "cpu": [
         "x64"
       ],
       "dev": true,
+      "libc": [
+        "musl"
+      ],
       "license": "MIT OR Apache-2.0",
       "optional": true,
       "os": [
@@ -427,9 +439,9 @@
       }
     },
     "node_modules/@biomejs/cli-win32-arm64": {
-      "version": "2.1.2",
-      "resolved": "https://registry.npmjs.org/@biomejs/cli-win32-arm64/-/cli-win32-arm64-2.1.2.tgz",
-      "integrity": "sha512-G8KWZli5ASOXA3yUQgx+M4pZRv3ND16h77UsdunUL17uYpcL/UC7RkWTdkfvMQvogVsAuz5JUcBDjgZHXxlKoA==",
+      "version": "2.5.13",
+      "resolved": "https://registry.npmjs.org/@biomejs/cli-win32-arm64/-/cli-win32-arm64-2.5.13.tgz",
+      "integrity": "sha512-+WD13qshXrr0Icv4BfsAdzm8Fs3TL+nZ59zEQxsYNd8lcgZJ0A5+OrlwsL1PipVCmWeRpxgIPD6DAcEd7smkCQ==",
       "cpu": [
         "arm64"
       ],
@@ -444,9 +456,9 @@
       }
     },
     "node_modules/@biomejs/cli-win32-x64": {
-      "version": "2.1.2",
-      "resolved": "https://registry.npmjs.org/@biomejs/cli-win32-x64/-/cli-win32-x64-2.1.2.tgz",
-      "integrity": "sha512-9zajnk59PMpjBkty3bK2IrjUsUHvqe9HWwyAWQBjGLE7MIBjbX2vwv1XPEhmO2RRuGoTkVx3WCanHrjAytICLA==",
+      "version": "2.5.13",
+      "resolved": "https://registry.npmjs.org/@biomejs/cli-win32-x64/-/cli-win32-x64-2.5.13.tgz",
+      "integrity": "sha512-VOofU/nW761XWzUeUNE8zzYNyPrxuMuNFMizL0qz7J75yeV8N7WFheUlk1/K6dOkaFpH9wJ+lDKlwjAbw0346w==",
       "cpu": [
         "x64"
       ],
diff --git a/package.json b/package.json
index a4465e7..789673d 100644
--- a/package.json
+++ b/package.json
@@ -33,7 +33,7 @@
     "zod": "4.5.4"
   },
   "devDependencies": {
-    "@biomejs/biome": "2.1.2",
+    "@biomejs/biome": "2.5.13",
     "@types/node": "26.5.0",
     "tsup": "8.5.1",
     "typescript": "7.0.2",
diff --git a/src/mutation_envelope.ts b/src/mutation_envelope.ts
index 8e63852..023f354 100644
--- a/src/mutation_envelope.ts
+++ b/src/mutation_envelope.ts
@@ -67,17 +67,14 @@ function zodUnionFromSchemas(schemas: readonly z.ZodTypeAny[]): z.ZodTypeAny {
   return z.union([first, second, ...rest]);
 }
 
-type MutationVariantOutput<V> = V extends MutationVariant<
-  infer TStatus,
-  infer TOutcome,
-  infer TDataSchema
->
-  ? MutationMetadata & {
-      status: TStatus;
-      outcome: TOutcome;
-      data: z.infer<TDataSchema>;
-    }
-  : never;
+type MutationVariantOutput<V> =
+  V extends MutationVariant<infer TStatus, infer TOutcome, infer TDataSchema>
+    ? MutationMetadata & {
+        status: TStatus;
+        outcome: TOutcome;
+        data: z.infer<TDataSchema>;
+      }
+    : never;
 
 export function mutationVariantsToSchemas<
   const TVariants extends readonly MutationVariant<string, string, z.ZodTypeAny>[],