diff --git a/src/hooks/auto-update-checker/cache.test.ts b/src/hooks/auto-update-checker/cache.test.ts
index 7019745f2..4e7e9ba49 100644
--- a/src/hooks/auto-update-checker/cache.test.ts
+++ b/src/hooks/auto-update-checker/cache.test.ts
@@ -10,13 +10,6 @@ mock.module("./constants", () => ({
   CACHE_DIR: TEST_OPENCODE_CACHE_DIR,
   USER_CONFIG_DIR: TEST_USER_CONFIG_DIR,
   PACKAGE_NAME: "oh-my-opencode",
-  NPM_REGISTRY_URL: "https://registry.npmjs.org/-/package/oh-my-opencode/dist-tags",
-  NPM_FETCH_TIMEOUT: 5000,
-  VERSION_FILE: join(TEST_OPENCODE_CACHE_DIR, "version"),
-  USER_OPENCODE_CONFIG: join(TEST_USER_CONFIG_DIR, "opencode.json"),
-  USER_OPENCODE_CONFIG_JSONC: join(TEST_USER_CONFIG_DIR, "opencode.jsonc"),
-  INSTALLED_PACKAGE_JSON: join(TEST_OPENCODE_CACHE_DIR, "node_modules", "oh-my-opencode", "package.json"),
-  getWindowsAppdataDir: () => null,
 }))
 
 mock.module("../../shared/logger", () => ({
diff --git a/src/hooks/auto-update-checker/checker.ts b/src/hooks/auto-update-checker/checker.ts
index 0d3fd310d..014821db6 100644
--- a/src/hooks/auto-update-checker/checker.ts
+++ b/src/hooks/auto-update-checker/checker.ts
@@ -6,4 +6,3 @@ export { getCachedVersion } from "./checker/cached-version"
 export { updatePinnedVersion, revertPinnedVersion } from "./checker/pinned-version-updater"
 export { getLatestVersion } from "./checker/latest-version"
 export { checkForUpdate } from "./checker/check-for-update"
-export { syncCachePackageJsonToIntent } from "./checker/sync-package-json"
diff --git a/src/hooks/auto-update-checker/checker/sync-package-json.test.ts b/src/hooks/auto-update-checker/checker/sync-package-json.test.ts
deleted file mode 100644
index 12f66e213..000000000
--- a/src/hooks/auto-update-checker/checker/sync-package-json.test.ts
+++ /dev/null
@@ -1,193 +0,0 @@
-import { afterEach, beforeEach, describe, expect, it, mock } from "bun:test"
-import { existsSync, mkdirSync, readFileSync, rmSync, writeFileSync } from "node:fs"
-import { join } from "node:path"
-import type { PluginEntryInfo } from "./plugin-entry"
-
-const TEST_CACHE_DIR = join(import.meta.dir, "__test-sync-cache__")
-
-mock.module("../constants", () => ({
-  CACHE_DIR: TEST_CACHE_DIR,
-  PACKAGE_NAME: "oh-my-opencode",
-  NPM_REGISTRY_URL: "https://registry.npmjs.org/-/package/oh-my-opencode/dist-tags",
-  NPM_FETCH_TIMEOUT: 5000,
-  VERSION_FILE: join(TEST_CACHE_DIR, "version"),
-  USER_CONFIG_DIR: "/tmp/opencode-config",
-  USER_OPENCODE_CONFIG: "/tmp/opencode-config/opencode.json",
-  USER_OPENCODE_CONFIG_JSONC: "/tmp/opencode-config/opencode.jsonc",
-  INSTALLED_PACKAGE_JSON: join(TEST_CACHE_DIR, "node_modules", "oh-my-opencode", "package.json"),
-  getWindowsAppdataDir: () => null,
-}))
-
-mock.module("../../../shared/logger", () => ({
-  log: () => {},
-}))
-
-function resetTestCache(currentVersion = "3.10.0"): void {
-  if (existsSync(TEST_CACHE_DIR)) {
-    rmSync(TEST_CACHE_DIR, { recursive: true, force: true })
-  }
-
-  mkdirSync(TEST_CACHE_DIR, { recursive: true })
-  writeFileSync(
-    join(TEST_CACHE_DIR, "package.json"),
-    JSON.stringify({ dependencies: { "oh-my-opencode": currentVersion, other: "1.0.0" } }, null, 2)
-  )
-}
-
-function cleanupTestCache(): void {
-  if (existsSync(TEST_CACHE_DIR)) {
-    rmSync(TEST_CACHE_DIR, { recursive: true, force: true })
-  }
-}
-
-function readCachePackageJsonVersion(): string | undefined {
-  const content = readFileSync(join(TEST_CACHE_DIR, "package.json"), "utf-8")
-  const pkg = JSON.parse(content) as { dependencies?: Record<string, string> }
-  return pkg.dependencies?.["oh-my-opencode"]
-}
-
-describe("syncCachePackageJsonToIntent", () => {
-  beforeEach(() => {
-    resetTestCache()
-  })
-
-  afterEach(() => {
-    cleanupTestCache()
-  })
-
-  describe("#given cache package.json with pinned semver version", () => {
-    describe("#when opencode.json intent is latest tag", () => {
-      it("#then updates package.json to use latest", async () => {
-        const { syncCachePackageJsonToIntent } = await import("./sync-package-json")
-
-        const pluginInfo: PluginEntryInfo = {
-          entry: "oh-my-opencode@latest",
-          isPinned: false,
-          pinnedVersion: "latest",
-          configPath: "/tmp/opencode.json",
-        }
-
-        const result = syncCachePackageJsonToIntent(pluginInfo)
-
-        expect(result).toBe(true)
-        expect(readCachePackageJsonVersion()).toBe("latest")
-      })
-    })
-
-    describe("#when opencode.json intent is next tag", () => {
-      it("#then updates package.json to use next", async () => {
-        const { syncCachePackageJsonToIntent } = await import("./sync-package-json")
-
-        const pluginInfo: PluginEntryInfo = {
-          entry: "oh-my-opencode@next",
-          isPinned: false,
-          pinnedVersion: "next",
-          configPath: "/tmp/opencode.json",
-        }
-
-        const result = syncCachePackageJsonToIntent(pluginInfo)
-
-        expect(result).toBe(true)
-        expect(readCachePackageJsonVersion()).toBe("next")
-      })
-    })
-
-    describe("#when opencode.json has no version (implies latest)", () => {
-      it("#then updates package.json to use latest", async () => {
-        const { syncCachePackageJsonToIntent } = await import("./sync-package-json")
-
-        const pluginInfo: PluginEntryInfo = {
-          entry: "oh-my-opencode",
-          isPinned: false,
-          pinnedVersion: null,
-          configPath: "/tmp/opencode.json",
-        }
-
-        const result = syncCachePackageJsonToIntent(pluginInfo)
-
-        expect(result).toBe(true)
-        expect(readCachePackageJsonVersion()).toBe("latest")
-      })
-    })
-  })
-
-  describe("#given cache package.json already matches intent", () => {
-    it("#then returns false without modifying package.json", async () => {
-      resetTestCache("latest")
-      const { syncCachePackageJsonToIntent } = await import("./sync-package-json")
-
-      const pluginInfo: PluginEntryInfo = {
-        entry: "oh-my-opencode@latest",
-        isPinned: false,
-        pinnedVersion: "latest",
-        configPath: "/tmp/opencode.json",
-      }
-
-      const result = syncCachePackageJsonToIntent(pluginInfo)
-
-      expect(result).toBe(false)
-      expect(readCachePackageJsonVersion()).toBe("latest")
-    })
-  })
-
-  describe("#given cache package.json does not exist", () => {
-    it("#then returns false", async () => {
-      cleanupTestCache()
-      const { syncCachePackageJsonToIntent } = await import("./sync-package-json")
-
-      const pluginInfo: PluginEntryInfo = {
-        entry: "oh-my-opencode@latest",
-        isPinned: false,
-        pinnedVersion: "latest",
-        configPath: "/tmp/opencode.json",
-      }
-
-      const result = syncCachePackageJsonToIntent(pluginInfo)
-
-      expect(result).toBe(false)
-    })
-  })
-
-  describe("#given plugin not in cache package.json dependencies", () => {
-    it("#then returns false", async () => {
-      cleanupTestCache()
-      mkdirSync(TEST_CACHE_DIR, { recursive: true })
-      writeFileSync(
-        join(TEST_CACHE_DIR, "package.json"),
-        JSON.stringify({ dependencies: { other: "1.0.0" } }, null, 2)
-      )
-
-      const { syncCachePackageJsonToIntent } = await import("./sync-package-json")
-
-      const pluginInfo: PluginEntryInfo = {
-        entry: "oh-my-opencode@latest",
-        isPinned: false,
-        pinnedVersion: "latest",
-        configPath: "/tmp/opencode.json",
-      }
-
-      const result = syncCachePackageJsonToIntent(pluginInfo)
-
-      expect(result).toBe(false)
-    })
-  })
-
-  describe("#given user explicitly changed from one semver to another", () => {
-    it("#then updates package.json to new version", async () => {
-      resetTestCache("3.9.0")
-      const { syncCachePackageJsonToIntent } = await import("./sync-package-json")
-
-      const pluginInfo: PluginEntryInfo = {
-        entry: "oh-my-opencode@3.10.0",
-        isPinned: true,
-        pinnedVersion: "3.10.0",
-        configPath: "/tmp/opencode.json",
-      }
-
-      const result = syncCachePackageJsonToIntent(pluginInfo)
-
-      expect(result).toBe(true)
-      expect(readCachePackageJsonVersion()).toBe("3.10.0")
-    })
-  })
-})
diff --git a/src/hooks/auto-update-checker/checker/sync-package-json.ts b/src/hooks/auto-update-checker/checker/sync-package-json.ts
deleted file mode 100644
index db8d5c1e1..000000000
--- a/src/hooks/auto-update-checker/checker/sync-package-json.ts
+++ /dev/null
@@ -1,88 +0,0 @@
-import * as fs from "node:fs"
-import * as path from "node:path"
-import { CACHE_DIR, PACKAGE_NAME } from "../constants"
-import { log } from "../../../shared/logger"
-import type { PluginEntryInfo } from "./plugin-entry"
-
-interface CachePackageJson {
-  dependencies?: Record<string, string>
-}
-
-/**
- * Determine the version specifier to use in cache package.json based on opencode.json intent.
- *
- * - "oh-my-opencode" (no version) → "latest"
- * - "oh-my-opencode@latest" → "latest"
- * - "oh-my-opencode@next" → "next"
- * - "oh-my-opencode@3.10.0" → "3.10.0" (pinned, use as-is)
- */
-function getIntentVersion(pluginInfo: PluginEntryInfo): string {
-  if (!pluginInfo.pinnedVersion) {
-    // No version specified in opencode.json, default to latest
-    return "latest"
-  }
-  return pluginInfo.pinnedVersion
-}
-
-/**
- * Sync the cache package.json to match the opencode.json plugin intent.
- *
- * OpenCode pins resolved versions in cache package.json (e.g., "3.11.0" instead of "latest").
- * This causes issues when users switch from pinned to tag in opencode.json:
- * - User changes opencode.json from "oh-my-opencode@3.10.0" to "oh-my-opencode@latest"
- * - Cache package.json still has "3.10.0"
- * - bun install reinstalls 3.10.0 instead of resolving @latest
- *
- * This function updates cache package.json to match the user's intent before bun install.
- *
- * @returns true if package.json was updated, false otherwise
- */
-export function syncCachePackageJsonToIntent(pluginInfo: PluginEntryInfo): boolean {
-  const cachePackageJsonPath = path.join(CACHE_DIR, "package.json")
-
-  if (!fs.existsSync(cachePackageJsonPath)) {
-    log("[auto-update-checker] Cache package.json not found, nothing to sync")
-    return false
-  }
-
-  try {
-    const content = fs.readFileSync(cachePackageJsonPath, "utf-8")
-    const pkgJson = JSON.parse(content) as CachePackageJson
-
-    if (!pkgJson.dependencies?.[PACKAGE_NAME]) {
-      log("[auto-update-checker] Plugin not in cache package.json dependencies, nothing to sync")
-      return false
-    }
-
-    const currentVersion = pkgJson.dependencies[PACKAGE_NAME]
-    const intentVersion = getIntentVersion(pluginInfo)
-
-    if (currentVersion === intentVersion) {
-      log("[auto-update-checker] Cache package.json already matches intent:", intentVersion)
-      return false
-    }
-
-    // Check if this is a meaningful change:
-    // - If intent is a tag (latest, next, beta) and current is semver, we need to update
-    // - If both are semver but different, user explicitly changed versions
-    const intentIsTag = !/^\d+\.\d+\.\d+/.test(intentVersion)
-    const currentIsSemver = /^\d+\.\d+\.\d+/.test(currentVersion)
-
-    if (intentIsTag && currentIsSemver) {
-      log(
-        `[auto-update-checker] Syncing cache package.json: "${currentVersion}" → "${intentVersion}" (opencode.json intent)`
-      )
-    } else {
-      log(
-        `[auto-update-checker] Updating cache package.json: "${currentVersion}" → "${intentVersion}"`
-      )
-    }
-
-    pkgJson.dependencies[PACKAGE_NAME] = intentVersion
-    fs.writeFileSync(cachePackageJsonPath, JSON.stringify(pkgJson, null, 2))
-    return true
-  } catch (err) {
-    log("[auto-update-checker] Failed to sync cache package.json:", err)
-    return false
-  }
-}
diff --git a/src/hooks/auto-update-checker/hook/background-update-check.ts b/src/hooks/auto-update-checker/hook/background-update-check.ts
index daff89786..161031839 100644
--- a/src/hooks/auto-update-checker/hook/background-update-check.ts
+++ b/src/hooks/auto-update-checker/hook/background-update-check.ts
@@ -4,7 +4,7 @@ import { log } from "../../../shared/logger"
 import { invalidatePackage } from "../cache"
 import { PACKAGE_NAME } from "../constants"
 import { extractChannel } from "../version-channel"
-import { findPluginEntry, getCachedVersion, getLatestVersion, revertPinnedVersion, syncCachePackageJsonToIntent } from "../checker"
+import { findPluginEntry, getCachedVersion, getLatestVersion, revertPinnedVersion } from "../checker"
 import { showAutoUpdatedToast, showUpdateAvailableToast } from "./update-toasts"
 
 function getPinnedVersionToastMessage(latestVersion: string): string {
@@ -65,10 +65,6 @@ export async function runBackgroundUpdateCheck(
     return
   }
 
-  // Sync cache package.json to match opencode.json intent before updating
-  // This handles the case where user switched from pinned version to tag (e.g., 3.10.0 -> @latest)
-  syncCachePackageJsonToIntent(pluginInfo)
-
   invalidatePackage(PACKAGE_NAME)
 
   const installSuccess = await runBunInstallSafe()