diff --git a/biome.json b/biome.json
index e22c8ad..77a2361 100644
--- a/biome.json
+++ b/biome.json
@@ -1,5 +1,5 @@
 {
-  "$schema": "https://biomejs.dev/schemas/2.5.14/schema.json",
+  "$schema": "https://biomejs.dev/schemas/2.6.2/schema.json",
   "vcs": {
     "enabled": true,
     "clientKind": "git",
@@ -45,5 +45,10 @@
       "semicolons": "always",
       "trailingCommas": "all"
     }
+  },
+  "markdown": {
+    "formatter": {
+      "enabled": false
+    }
   }
 }
diff --git a/bun.lock b/bun.lock
index 3ef51f3..fba4411 100644
--- a/bun.lock
+++ b/bun.lock
@@ -11,7 +11,7 @@
         "@actions/tool-cache": "4.0.0",
       },
       "devDependencies": {
-        "@biomejs/biome": "2.5.15",
+        "@biomejs/biome": "2.6.2",
         "@semantic-release/commit-analyzer": "13.0.1",
         "@semantic-release/github": "12.0.10",
         "@semantic-release/release-notes-generator": "14.1.1",
@@ -71,23 +71,27 @@
 
     "@babel/helper-validator-identifier": ["@babel/helper-validator-identifier@7.29.7", "", {}, "sha512-qehxGkRj55h/ff8EMaJ+cYhyaKlHIxqYDn682wQD7RNp9UujOQsHog2uS0r2vzr4pW+sXf90NeeayjcNaX3fFg=="],
 
-    "@biomejs/biome": ["@biomejs/biome@2.5.15", "", { "optionalDependencies": { "@biomejs/cli-darwin-arm64": "2.5.15", "@biomejs/cli-darwin-x64": "2.5.15", "@biomejs/cli-linux-arm64": "2.5.15", "@biomejs/cli-linux-arm64-musl": "2.5.15", "@biomejs/cli-linux-x64": "2.5.15", "@biomejs/cli-linux-x64-musl": "2.5.15", "@biomejs/cli-win32-arm64": "2.5.15", "@biomejs/cli-win32-x64": "2.5.15" }, "bin": { "biome": "bin/biome" } }, "sha512-WZTW4slm/pdkh92K6t/3aEN++44JD1PQ7squ7RCMLI1flHGl43DVOIGXvCjHiZgBMO1V4uYxoFNtqrIA4qGuIQ=="],
+    "@biomejs/biome": ["@biomejs/biome@2.6.2", "", { "optionalDependencies": { "@biomejs/cli-android-arm64": "2.6.2", "@biomejs/cli-android-x64": "2.6.2", "@biomejs/cli-darwin-arm64": "2.6.2", "@biomejs/cli-darwin-x64": "2.6.2", "@biomejs/cli-linux-arm64": "2.6.2", "@biomejs/cli-linux-arm64-musl": "2.6.2", "@biomejs/cli-linux-x64": "2.6.2", "@biomejs/cli-linux-x64-musl": "2.6.2", "@biomejs/cli-win32-arm64": "2.6.2", "@biomejs/cli-win32-x64": "2.6.2" }, "bin": { "biome": "bin/biome" } }, "sha512-JLTFAFF9vfJcWwLhwuL4ZHflLg+XfTEC4IUnAlJRX1cMRt57++Xd1Ysb9Fdmlh9YUrvyCXfPEHjjEIqKJGdPKw=="],
 
-    "@biomejs/cli-darwin-arm64": ["@biomejs/cli-darwin-arm64@2.5.15", "", { "os": "darwin", "cpu": "arm64" }, "sha512-BZVzFhJ/mUvTLMYbc9x6el0o2Uv5zP7bACYyhFb6fSc1giroXm7PL0a5KqMJ9F+/BnkYRjagD/ROSDVOZ6eapg=="],
+    "@biomejs/cli-android-arm64": ["@biomejs/cli-android-arm64@2.6.2", "", { "os": "android", "cpu": "arm64" }, "sha512-dMpdpH7zFEL5FxuIA9LJW+RoNyC3oeDB7PJyjqVVwtMNoKB5uo8OZYmrVSBikn71txzYwy/3xga7UME6bJQZ6A=="],
 
-    "@biomejs/cli-darwin-x64": ["@biomejs/cli-darwin-x64@2.5.15", "", { "os": "darwin", "cpu": "x64" }, "sha512-V5Kw63V+fVGNFhFrizDxMbGXAzZCh8kYzJpy3GI6gTapWDg7bZK9oYC9CbVgQSEdTnupz0U5Efz8Ev+5vdBBXw=="],
+    "@biomejs/cli-android-x64": ["@biomejs/cli-android-x64@2.6.2", "", { "os": "android", "cpu": "x64" }, "sha512-XCwEhPBGYzuRA502dRkCcQ+5cefQwuxQR7f9wa4do92dvIcuBL6VMLMFB/fL9hlpZ4dGSfHdpGFSIDlp52mg0A=="],
 
-    "@biomejs/cli-linux-arm64": ["@biomejs/cli-linux-arm64@2.5.15", "", { "os": "linux", "cpu": "arm64" }, "sha512-XaG7P7eeSLYETD3K9grfB0mQmpLQZjygdbsxekWBJAg4am79fGAtRpfRyNnTvXB2fZFNnJZG3nXm7HBat0+VUw=="],
+    "@biomejs/cli-darwin-arm64": ["@biomejs/cli-darwin-arm64@2.6.2", "", { "os": "darwin", "cpu": "arm64" }, "sha512-rpXtabRgyZNz3aCjd/cRoSZGYi92R9eAXdUUe1sigIsRDyfMwgThaa98Yxt1fiZ7mxquqkAyIHIo08N/e1ToBA=="],
 
-    "@biomejs/cli-linux-arm64-musl": ["@biomejs/cli-linux-arm64-musl@2.5.15", "", { "os": "linux", "cpu": "arm64" }, "sha512-tGzZUTcJCV7tj5Adh/Gn6nR4MycqA3iohq2LEcrarAgRBkU0h0OKd2UzCRkOsOYOuUGaUJb4YmqRqyy2feGGSw=="],
+    "@biomejs/cli-darwin-x64": ["@biomejs/cli-darwin-x64@2.6.2", "", { "os": "darwin", "cpu": "x64" }, "sha512-7GGzlm1GxUKoQ9CNV8tQZ+XXad4sz+v+uzNsWlhaGjsnZqUOVBw1OmAMpG3uNV/Mr0UrCpRJvSK0qvfuqSQOjg=="],
 
-    "@biomejs/cli-linux-x64": ["@biomejs/cli-linux-x64@2.5.15", "", { "os": "linux", "cpu": "x64" }, "sha512-xE4iEW/3LqlYj9GFgGrFsFSH51dEEpUbYWBfeOv0q87WkUDxK2o/HhreSb7qMJqck70RVM6Lg96hgedcAYcOkA=="],
+    "@biomejs/cli-linux-arm64": ["@biomejs/cli-linux-arm64@2.6.2", "", { "os": "linux", "cpu": "arm64" }, "sha512-Qs4CofCE8MdkjZFfEjswh2NAcbyQ7IVYtGSzQBvLqFlla/CSXroGbktUFndWG/kVSTywadauzAspYWtSfqAc2g=="],
 
-    "@biomejs/cli-linux-x64-musl": ["@biomejs/cli-linux-x64-musl@2.5.15", "", { "os": "linux", "cpu": "x64" }, "sha512-IlxUcyxilVGPsE008x13pWdkTbU3nQpP2i9b5UrbOYj6goBkKsRX1XB7yJLcV+O1H9LBchIIm4adOaVLZBX0ZQ=="],
+    "@biomejs/cli-linux-arm64-musl": ["@biomejs/cli-linux-arm64-musl@2.6.2", "", { "os": "linux", "cpu": "arm64" }, "sha512-I+FYCLVSmR3cYfKcQ+KNeLOZ5w0wRd9fQFlw3JbSvy7bkegvTqdHaBRRcJzHQB/1ldldTLIcG21ka6X2cTWmJw=="],
 
-    "@biomejs/cli-win32-arm64": ["@biomejs/cli-win32-arm64@2.5.15", "", { "os": "win32", "cpu": "arm64" }, "sha512-2kPKzhNlm8C+Ru3GcO0Me2ODkCBLrVOUNuyi84RJyWDVKAA4+Kjj3jMjL938lF6BRfvltC4vB2nPY9SvN51Ovg=="],
+    "@biomejs/cli-linux-x64": ["@biomejs/cli-linux-x64@2.6.2", "", { "os": "linux", "cpu": "x64" }, "sha512-FJKsb95418139xDdbv9XnNJsIIwvsgR21Of0aE9B9U+nQlOtRq5gJl2ps0jZUmYBxTaOlP9BKo8N+Ff8+Rui1g=="],
 
-    "@biomejs/cli-win32-x64": ["@biomejs/cli-win32-x64@2.5.15", "", { "os": "win32", "cpu": "x64" }, "sha512-yAzh4UqEImV6Hcy0zjUqNfJAsUhoD64FBQCdTG8Md/Z2wQeVP/ZmJ3XRYAs1g8J9fjTFyl2fCtc5FB5til47+g=="],
+    "@biomejs/cli-linux-x64-musl": ["@biomejs/cli-linux-x64-musl@2.6.2", "", { "os": "linux", "cpu": "x64" }, "sha512-wnjEXAK2pDd2j8r9gKI3L+44sIxjkYzS5aHmD1+K57RNJ3sFyT4n22NH6QFPqqeVdRBxN54H3kckUUCrFKCcJw=="],
+
+    "@biomejs/cli-win32-arm64": ["@biomejs/cli-win32-arm64@2.6.2", "", { "os": "win32", "cpu": "arm64" }, "sha512-/PEOo6evlgrQOfKhMNtC/4Gk8ai3hySXXEtjUzCqZe/4iAbMdqelpp7qvZEDyLxlZS+BjOMQFpq2gXI/BPaAqw=="],
+
+    "@biomejs/cli-win32-x64": ["@biomejs/cli-win32-x64@2.6.2", "", { "os": "win32", "cpu": "x64" }, "sha512-FVlWD+mDDz8nN5LWKRWUhhb7wKIK0VE3oXQvQBX7Fwwj00CvqMVhMyiz1iz8O5aZGmnkhFlKSwJPrUvMh5prQw=="],
 
     "@colors/colors": ["@colors/colors@1.5.0", "", {}, "sha512-ooWCrlZP11i8GImSjTHYHLkvFDP48nS4+204nGb1RiX/WXYHmJA2III9/e2DWVabCESdW7hBAEzHRqUn9OUVvQ=="],
 
diff --git a/docs/engineering/toolchain-policy.md b/docs/engineering/toolchain-policy.md
index f5c5eb2..f98dbb7 100644
--- a/docs/engineering/toolchain-policy.md
+++ b/docs/engineering/toolchain-policy.md
@@ -9,7 +9,7 @@ Exclude prereleases, nightly builds, abandoned packages, and combinations whose
 ## Active foundation toolchain
 
 `package.json`, `bun.lock`, workflow SHAs, and CI checks are source of truth. The
-current foundation pins Bun 1.4.0, TypeScript 7.0.2, Biome 2.5.14, Bun types
+current foundation pins Bun 1.4.0, TypeScript 7.0.2, Biome 2.6.2, Bun types
 1.4.0, Gitleaks 8.30.1, and actionlint 1.7.12. Release automation pins
 semantic-release 25.0.9 with `@semantic-release/commit-analyzer` 13.0.1,
 `@semantic-release/release-notes-generator` 14.1.1, `@semantic-release/github`
diff --git a/package.json b/package.json
index 089a5e1..c42db09 100644
--- a/package.json
+++ b/package.json
@@ -36,7 +36,7 @@
     "@actions/tool-cache": "4.0.0"
   },
   "devDependencies": {
-    "@biomejs/biome": "2.5.15",
+    "@biomejs/biome": "2.6.2",
     "@semantic-release/commit-analyzer": "13.0.1",
     "@semantic-release/github": "12.0.10",
     "@semantic-release/release-notes-generator": "14.1.1",