diff --git a/.bun-version b/.bun-version
index 428b770e..1c99cf0e 100644
--- a/.bun-version
+++ b/.bun-version
@@ -1 +1 @@
-1.4.3
+1.4.4
diff --git a/.github/repo-platform-manifest.json b/.github/repo-platform-manifest.json
index 6be693fc..b52a6fa1 100644
--- a/.github/repo-platform-manifest.json
+++ b/.github/repo-platform-manifest.json
@@ -1,7 +1,7 @@
 {
   "$comment": "Generated by repo-platform - do not edit. Every platform-written path with its ownership class: managed (rewritten whole; hash is sha256 of the last written content), split (the BEGIN/END-bounded region is rewritten and the repository owns everything outside it; the hash covers the region from the BEGIN line through the END line), starter (written once, repo-owned from then on), mirror (a byte copy of a written file, or with kind symlink a relative symbolic link to it whose hash is sha256 of the link target, declared in files.yml or .repo-platform.yml). This file's own entry names the repo-platform commit the repository is judged against until a sync moves it.",
   "files": {
-    ".bun-version": {"class": "managed", "hash": "bd31e8d9cf8d14a1e9e3fdf3b9f6a524819aed0d1b14627523c6765767c7d8f1"},
+    ".bun-version": {"class": "managed", "hash": "d03d8b268b4171328ac2458ce8ca82d69a1fde38469d4e4faae4f8fa8d8a5e35"},
     ".editorconfig": {"class": "split", "grammar": "managed-region", "begin": "# BEGIN REPO-PLATFORM MANAGED", "end": "# END REPO-PLATFORM MANAGED", "hash": "f630bfb59d725bb4b06f7fa37d969009d77054592c8458585d8783d56b0fb21e"},
     ".gitattributes": {"class": "split", "grammar": "managed-region", "begin": "# BEGIN REPO-PLATFORM MANAGED", "end": "# END REPO-PLATFORM MANAGED", "hash": "be91e6ca04b5008b2d723b46f5434a02cb3c5415d65bc515c97670038ffe8ce8"},
     ".github/CODEOWNERS": {"class": "split", "grammar": "managed-region", "begin": "# BEGIN REPO-PLATFORM MANAGED", "end": "# END REPO-PLATFORM MANAGED", "hash": "9fefb20f64f9978361c0d4a790b3f36a7606a6da4d66106abdbd2a4863a4b2ae"},
@@ -11,7 +11,7 @@
     ".github/copilot-instructions.md": {"class": "mirror", "kind": "symlink", "hash": "79909577a70fc4971a7fcfd3cbec6a1af7182ca2dadc87f2979dce5e28f93ca0"},
     ".github/dependabot.yml": {"class": "managed", "hash": "08797f7ab8d963e4b940fe249ac348e778e16591e7508cbc4e26be57738b7ce8"},
     ".github/instructions/review.instructions.md": {"class": "managed", "hash": "89d5c9bc2bea185a076b37a4cefb5ffea25a37f050c4e39512b875b95e2db380"},
-    ".github/repo-platform-manifest.json": {"class": "managed", "hash": null, "commit": "b0343f64d30923fea312ab9e0ff691d21b0d55f6"},
+    ".github/repo-platform-manifest.json": {"class": "managed", "hash": null, "commit": "1416bea869dc2384ed6e9dc9e888a9a5bf2f71cb"},
     ".github/settings.local.yml": {"class": "starter"},
     ".github/settings.yml": {"class": "managed", "hash": "81223482b2cb3f29ef26883396b8d0313b10bd0f35a5f80151681fd6e54d8311"},
     ".github/workflows/auto-assign.yml": {"class": "managed", "hash": "42534cbfecfcc71acbee7f232d2c2b6c03b523e8158fdbac354d25a27aaf6510"},
@@ -32,9 +32,11 @@
     ".release-please-manifest.json": {"class": "starter"},
     ".typography-allow": {"class": "managed", "hash": "768ce791aa89e0061a7ccce09ee389478c45062d28d0c256e09b9e7160455ac3"},
     ".yamllint": {"class": "managed", "hash": "5a32565bac44b0b6b2bc8741b2962d2b07ff3afcd2c4ea832ec5cab63af5f3ed"},
-    "AGENTS.md": {"class": "split", "grammar": "managed-region", "begin": "<!-- BEGIN REPO-PLATFORM MANAGED -->", "end": "<!-- END REPO-PLATFORM MANAGED -->", "hash": "5835d34305caf2b6a7255f8e518c2afcad3981b8738a3119da6050d0fb669644"},
+    "AGENTS.md": {"class": "split", "grammar": "managed-region", "begin": "<!-- BEGIN REPO-PLATFORM MANAGED -->", "end": "<!-- END REPO-PLATFORM MANAGED -->", "hash": "ffb11b9b0776da11864666fa3dc574385f251765f4a83c4936cebe76c7d8bd9c"},
     "CLAUDE.md": {"class": "mirror", "kind": "symlink", "hash": "a54ff182c7e8acf56acfd6e4b9c3ff41e2c41a31c9b211b2deb9df75d9a478f9"},
     "LICENSE.md": {"class": "split", "grammar": "managed-region", "begin": "<!-- BEGIN REPO-PLATFORM MANAGED -->", "end": "<!-- END REPO-PLATFORM MANAGED -->", "hash": "d0dc0940411f2d6102e0165497daa4e0a00c4b12794796fed35b2c6e3c9e3fd6"},
+    "biome.json": {"class": "managed", "hash": "9409dfcb662acc191da623346272f722cdfe4cffaf7dd22f61384338a55451ef"},
+    "biome.local.jsonc": {"class": "starter"},
     "release-please-config.json": {"class": "starter"}
   }
 }
diff --git a/AGENTS.md b/AGENTS.md
index 50888fa6..55bd93a5 100644
--- a/AGENTS.md
+++ b/AGENTS.md
@@ -26,6 +26,7 @@ GitHub Settings as Code: GitHub Action applying declarative repository settings:
 
 - bun: `bun install`, `bun run <script>` (scripts in `package.json`)
 - `.bun-version` is managed by sync; pin another version in a repo-owned workflow's version input, not in the dotfile.
+- `biome.json` is managed by sync and holds the fleet's lint floor; the repository's own biome settings and per-path exceptions go in `biome.local.jsonc`.
 
 ## Repository-specific guidance