anomalyco
diff --git a/bun.lock b/bun.lock
diff --git a/nix/hashes.json b/nix/hashes.json
@@ -1,6 +1,6 @@
 {
   "nodeModules": {
-    "x86_64-linux": "sha256-1l4twtOi/7YYy1KFJME1XazAgTETAfbxB3EOv2qQeVs=",
-    "aarch64-darwin": "sha256-jdZI3BA/v35er4xgWkI2rHo54D1TDNVhMX83b5BcIvk="
+    "x86_64-linux": "sha256-GKdu7nan/9ioBtgL3cUeuVLNKUDio10LeQrn7BPgbng=",
+    "aarch64-darwin": "sha256-STLB1J65VjauvPM+BqCyTQQkHPoVmUhDvVEdH3WTJP4="
   }
 }
diff --git a/package.json b/package.json
@@ -4,7 +4,7 @@
   "description": "AI-powered development tool",
   "private": true,
   "type": "module",
-  "packageManager": "bun@1.3.5",
+  "packageManager": "bun@1.3.6",
   "scripts": {
     "dev": "bun run --cwd packages/opencode --conditions=browser src/index.ts",
     "typecheck": "bun turbo typecheck",
@@ -21,7 +21,7 @@
       "packages/slack"
     ],
     "catalog": {
-      "@types/bun": "1.3.4",
+      "@types/bun": "1.3.6",
       "@octokit/rest": "22.0.0",
       "@hono/zod-validator": "0.4.2",
       "ulid": "3.0.1",

diff --git a/packages/opencode/src/skill/skill.ts b/packages/opencode/src/skill/skill.ts
@@ -6,7 +6,6 @@ import { ConfigMarkdown } from "../config/markdown"
 import { Log } from "../util/log"
 import { Global } from "@/global"
 import { Filesystem } from "@/util/filesystem"
-import { exists } from "fs/promises"
 import { Flag } from "@/flag/flag"
 
 export namespace Skill {
@@ -77,7 +76,7 @@ export namespace Skill {
     )
     // Also include global ~/.claude/skills/
     const globalClaude = `${Global.Path.home}/.claude`
-    if (await exists(globalClaude)) {
+    if (await Filesystem.isDir(globalClaude)) {
       claudeDirs.push(globalClaude)
     }
 

diff --git a/packages/opencode/src/storage/storage.ts b/packages/opencode/src/storage/storage.ts
@@ -2,6 +2,7 @@ import { Log } from "../util/log"
 import path from "path"
 import fs from "fs/promises"
 import { Global } from "../global"
+import { Filesystem } from "../util/filesystem"
 import { lazy } from "../util/lazy"
 import { Lock } from "../util/lock"
 import { $ } from "bun"
@@ -23,7 +24,7 @@ export namespace Storage {
   const MIGRATIONS: Migration[] = [
     async (dir) => {
       const project = path.resolve(dir, "../project")
-      if (!fs.exists(project)) return
+      if (!(await Filesystem.isDir(project))) return
       for await (const projectDir of new Bun.Glob("*").scan({
         cwd: project,
         onlyFiles: false,
@@ -43,7 +44,7 @@ export namespace Storage {
             if (worktree) break
           }
           if (!worktree) continue
-          if (!(await fs.exists(worktree))) continue
+          if (!(await Filesystem.isDir(worktree))) continue
           const [id] = await $`git rev-list --max-parents=0 --all`
             .quiet()
             .nothrow()

diff --git a/packages/opencode/src/util/filesystem.ts b/packages/opencode/src/util/filesystem.ts
@@ -1,8 +1,18 @@
 import { realpathSync } from "fs"
-import { exists } from "fs/promises"
 import { dirname, join, relative } from "path"
 
 export namespace Filesystem {
+  export const exists = (p: string) =>
+    Bun.file(p)
+      .stat()
+      .then(() => true)
+      .catch(() => false)
+
+  export const isDir = (p: string) =>
+    Bun.file(p)
+      .stat()
+      .then((s) => s.isDirectory())
+      .catch(() => false)
   /**
    * On Windows, normalize a path to its canonical casing using the filesystem.
    * This is needed because Windows paths are case-insensitive but LSP servers
@@ -31,7 +41,7 @@ export namespace Filesystem {
     const result = []
     while (true) {
       const search = join(current, target)
-      if (await exists(search).catch(() => false)) result.push(search)
+      if (await exists(search)) result.push(search)
       if (stop === current) break
       const parent = dirname(current)
       if (parent === current) break
@@ -46,7 +56,7 @@ export namespace Filesystem {
     while (true) {
       for (const target of targets) {
         const search = join(current, target)
-        if (await exists(search).catch(() => false)) yield search
+        if (await exists(search)) yield search
       }
       if (stop === current) break
       const parent = dirname(current)

diff --git a/packages/opencode/test/util/filesystem.test.ts b/packages/opencode/test/util/filesystem.test.ts
@@ -0,0 +1,39 @@
+import { describe, expect, test } from "bun:test"
+import os from "node:os"
+import path from "node:path"
+import { mkdtemp, mkdir, rm } from "node:fs/promises"
+import { Filesystem } from "../../src/util/filesystem"
+
+describe("util.filesystem", () => {
+  test("exists() is true for files and directories", async () => {
+    const tmp = await mkdtemp(path.join(os.tmpdir(), "opencode-filesystem-"))
+    const dir = path.join(tmp, "dir")
+    const file = path.join(tmp, "file.txt")
+    const missing = path.join(tmp, "missing")
+
+    await mkdir(dir, { recursive: true })
+    await Bun.write(file, "hello")
+
+    const cases = await Promise.all([Filesystem.exists(dir), Filesystem.exists(file), Filesystem.exists(missing)])
+
+    expect(cases).toEqual([true, true, false])
+
+    await rm(tmp, { recursive: true, force: true })
+  })
+
+  test("isDir() is true only for directories", async () => {
+    const tmp = await mkdtemp(path.join(os.tmpdir(), "opencode-filesystem-"))
+    const dir = path.join(tmp, "dir")
+    const file = path.join(tmp, "file.txt")
+    const missing = path.join(tmp, "missing")
+
+    await mkdir(dir, { recursive: true })
+    await Bun.write(file, "hello")
+
+    const cases = await Promise.all([Filesystem.isDir(dir), Filesystem.isDir(file), Filesystem.isDir(missing)])
+
+    expect(cases).toEqual([true, false, false])
+
+    await rm(tmp, { recursive: true, force: true })
+  })
+})