diff --git a/src/cli/handlers/agent-hooks.test.ts b/src/cli/handlers/agent-hooks.test.ts
index c42531364a8..4fcc186b0d8 100644
--- a/src/cli/handlers/agent-hooks.test.ts
+++ b/src/cli/handlers/agent-hooks.test.ts
@@ -92,6 +92,7 @@ describe('agent hooks CLI handler', () => {
   })
 
   afterEach(() => {
+    vi.unstubAllEnvs()
     vi.restoreAllMocks()
     rmSync(userDataPath, { recursive: true, force: true })
   })
@@ -139,6 +140,33 @@ describe('agent hooks CLI handler', () => {
     })
   })
 
+  it('forwards WSL pane routing to the runtime exactly once without using the host installer', async () => {
+    const home = '/home/jin/.local/share/orca/codex-runtime-home/home'
+    vi.stubEnv('CODEX_HOME', home)
+    vi.stubEnv('ORCA_CODEX_HOME', home)
+    vi.stubEnv('WSL_DISTRO_NAME', 'Ubuntu-24.04')
+    callMock.mockResolvedValue({ result: { state: 'installed' } })
+
+    await main(['agent', 'hooks', 'prepare-codex'], userDataPath)
+
+    expect(callMock).toHaveBeenCalledExactlyOnceWith(
+      'agentHooks.prepareCodexForWslPane',
+      { codexHome: home, orcaCodexHome: home, wslDistro: 'Ubuntu-24.04' },
+      { timeoutMs: 50_000 }
+    )
+    expect(prepareManagedCodexHomeBeforeShellLaunchMock).not.toHaveBeenCalled()
+  })
+
+  it('fails open when WSL runtime preparation is unavailable', async () => {
+    vi.stubEnv('CODEX_HOME', '/home/jin/.local/share/orca/codex-runtime-home/home')
+    vi.stubEnv('ORCA_CODEX_HOME', '/home/jin/.local/share/orca/codex-runtime-home/home')
+    vi.stubEnv('WSL_DISTRO_NAME', 'Ubuntu')
+    callMock.mockRejectedValue(new Error('method_not_found'))
+
+    await expect(main(['agent', 'hooks', 'prepare-codex'], userDataPath)).resolves.toBeUndefined()
+    expect(prepareManagedCodexHomeBeforeShellLaunchMock).not.toHaveBeenCalled()
+  })
+
   it('honors Codex-specific disablement when the runtime is unavailable', async () => {
     const state = getDefaultPersistedState(userDataPath)
     state.settings.disabledTuiAgents = ['codex']
diff --git a/src/cli/handlers/agent-hooks.ts b/src/cli/handlers/agent-hooks.ts
index 57419518d4b..bf44211b4a7 100644
--- a/src/cli/handlers/agent-hooks.ts
+++ b/src/cli/handlers/agent-hooks.ts
@@ -28,6 +28,9 @@ type AgentHookCommandResult = {
   statuses: AgentHookInstallStatus[]
 }
 
+// Covers managed-home verification, WSL identity, trust grant, and bounded app-server reap.
+const WSL_CODEX_PREPARE_TIMEOUT_MS = 50_000
+
 function getDataPath(): string {
   const userDataPath = getDefaultUserDataPath()
   const indexPath = join(userDataPath, 'orca-profile-index.json')
@@ -207,6 +210,22 @@ async function setAgentHooksEnabled(
 
 export const AGENT_HOOK_HANDLERS: Record<string, CommandHandler> = {
   'agent hooks prepare-codex': async ({ client }) => {
+    if (process.env.WSL_DISTRO_NAME?.trim()) {
+      try {
+        await client.call(
+          'agentHooks.prepareCodexForWslPane',
+          {
+            codexHome: process.env.CODEX_HOME ?? '',
+            orcaCodexHome: process.env.ORCA_CODEX_HOME ?? '',
+            wslDistro: process.env.WSL_DISTRO_NAME
+          },
+          { timeoutMs: WSL_CODEX_PREPARE_TIMEOUT_MS }
+        )
+      } catch {
+        // Best effort: old or unavailable runtimes must not block Codex launch.
+      }
+      return
+    }
     const settings = await readHookSettings(client)
     await prepareManagedCodexHomeBeforeShellLaunch({
       userDataPath: getDefaultUserDataPath(),
diff --git a/src/main/__fixtures__/shell-wrapper-snapshots/daemon-bash-rcfile.txt b/src/main/__fixtures__/shell-wrapper-snapshots/daemon-bash-rcfile.txt
index 079d23ec734..63748ee93af 100644
--- a/src/main/__fixtures__/shell-wrapper-snapshots/daemon-bash-rcfile.txt
+++ b/src/main/__fixtures__/shell-wrapper-snapshots/daemon-bash-rcfile.txt
@@ -72,7 +72,7 @@ fi
 # Why || : twice — zsh alone aborts inside the substitution, but every shell's
 # assignment adopts its exit status, so an absent codex trips set -e in bash too.
 __orca_codex_binary="$(unalias codex 2>/dev/null || :; command -v codex 2>/dev/null || :)"
-if [[ -n "${ORCA_CODEX_LAUNCH_PREFLIGHT:-}" && -n "${__orca_codex_binary:-}" && -x "${__orca_codex_binary}" ]]; then
+if [[ -n "${ORCA_CODEX_LAUNCH_PREFLIGHT:-}" && -x "${ORCA_CODEX_LAUNCH_PREFLIGHT}" && -n "${__orca_codex_binary:-}" && -x "${__orca_codex_binary}" ]]; then
   # Why the function reserved word: it suppresses alias expansion of the name,
   # which otherwise rewrites this header at parse time and aborts the whole file.
   function codex {
diff --git a/src/main/__fixtures__/shell-wrapper-snapshots/daemon-fish-init.txt b/src/main/__fixtures__/shell-wrapper-snapshots/daemon-fish-init.txt
index 9c8b9179a81..660c8f2d1f9 100644
--- a/src/main/__fixtures__/shell-wrapper-snapshots/daemon-fish-init.txt
+++ b/src/main/__fixtures__/shell-wrapper-snapshots/daemon-fish-init.txt
@@ -2,7 +2,7 @@ function __orca_shell_ready_marker --on-event fish_prompt
   builtin printf "\033]777;orca-shell-ready\007"
   functions -e __orca_shell_ready_marker
 end
-if test -n "$ORCA_CODEX_LAUNCH_PREFLIGHT"; and test (type -t codex 2>/dev/null) = file
+if test -x "$ORCA_CODEX_LAUNCH_PREFLIGHT"; and test (type -t codex 2>/dev/null) = file
   function codex
     command "$ORCA_CODEX_LAUNCH_PREFLIGHT" agent hooks prepare-codex >/dev/null 2>&1; or true
     command codex $argv
diff --git a/src/main/__fixtures__/shell-wrapper-snapshots/daemon-zsh-zshenv.txt b/src/main/__fixtures__/shell-wrapper-snapshots/daemon-zsh-zshenv.txt
index f0ec07cfcfd..e734f8c1867 100644
--- a/src/main/__fixtures__/shell-wrapper-snapshots/daemon-zsh-zshenv.txt
+++ b/src/main/__fixtures__/shell-wrapper-snapshots/daemon-zsh-zshenv.txt
@@ -110,7 +110,7 @@ __orca_deferred_init() {
     # Why || : twice — zsh alone aborts inside the substitution, but every shell's
     # assignment adopts its exit status, so an absent codex trips set -e in bash too.
     __orca_codex_binary="$(unalias codex 2>/dev/null || :; command -v codex 2>/dev/null || :)"
-    if [[ -n "${ORCA_CODEX_LAUNCH_PREFLIGHT:-}" && -n "${__orca_codex_binary:-}" && -x "${__orca_codex_binary}" ]]; then
+    if [[ -n "${ORCA_CODEX_LAUNCH_PREFLIGHT:-}" && -x "${ORCA_CODEX_LAUNCH_PREFLIGHT}" && -n "${__orca_codex_binary:-}" && -x "${__orca_codex_binary}" ]]; then
       # Why the function reserved word: it suppresses alias expansion of the name,
       # which otherwise rewrites this header at parse time and aborts the whole file.
       function codex {
diff --git a/src/main/__fixtures__/shell-wrapper-snapshots/local-bash-rcfile.txt b/src/main/__fixtures__/shell-wrapper-snapshots/local-bash-rcfile.txt
index 895434cc688..9d1e2922b45 100644
--- a/src/main/__fixtures__/shell-wrapper-snapshots/local-bash-rcfile.txt
+++ b/src/main/__fixtures__/shell-wrapper-snapshots/local-bash-rcfile.txt
@@ -75,7 +75,7 @@ fi
 # Why || : twice — zsh alone aborts inside the substitution, but every shell's
 # assignment adopts its exit status, so an absent codex trips set -e in bash too.
 __orca_codex_binary="$(unalias codex 2>/dev/null || :; command -v codex 2>/dev/null || :)"
-if [[ -n "${ORCA_CODEX_LAUNCH_PREFLIGHT:-}" && -n "${__orca_codex_binary:-}" && -x "${__orca_codex_binary}" ]]; then
+if [[ -n "${ORCA_CODEX_LAUNCH_PREFLIGHT:-}" && -x "${ORCA_CODEX_LAUNCH_PREFLIGHT}" && -n "${__orca_codex_binary:-}" && -x "${__orca_codex_binary}" ]]; then
   # Why the function reserved word: it suppresses alias expansion of the name,
   # which otherwise rewrites this header at parse time and aborts the whole file.
   function codex {
diff --git a/src/main/__fixtures__/shell-wrapper-snapshots/local-fish-init.txt b/src/main/__fixtures__/shell-wrapper-snapshots/local-fish-init.txt
index 9c8b9179a81..660c8f2d1f9 100644
--- a/src/main/__fixtures__/shell-wrapper-snapshots/local-fish-init.txt
+++ b/src/main/__fixtures__/shell-wrapper-snapshots/local-fish-init.txt
@@ -2,7 +2,7 @@ function __orca_shell_ready_marker --on-event fish_prompt
   builtin printf "\033]777;orca-shell-ready\007"
   functions -e __orca_shell_ready_marker
 end
-if test -n "$ORCA_CODEX_LAUNCH_PREFLIGHT"; and test (type -t codex 2>/dev/null) = file
+if test -x "$ORCA_CODEX_LAUNCH_PREFLIGHT"; and test (type -t codex 2>/dev/null) = file
   function codex
     command "$ORCA_CODEX_LAUNCH_PREFLIGHT" agent hooks prepare-codex >/dev/null 2>&1; or true
     command codex $argv
diff --git a/src/main/__fixtures__/shell-wrapper-snapshots/local-zsh-zshenv.txt b/src/main/__fixtures__/shell-wrapper-snapshots/local-zsh-zshenv.txt
index 92802c53dca..af7cab85587 100644
--- a/src/main/__fixtures__/shell-wrapper-snapshots/local-zsh-zshenv.txt
+++ b/src/main/__fixtures__/shell-wrapper-snapshots/local-zsh-zshenv.txt
@@ -110,7 +110,7 @@ __orca_deferred_init() {
     # Why || : twice — zsh alone aborts inside the substitution, but every shell's
     # assignment adopts its exit status, so an absent codex trips set -e in bash too.
     __orca_codex_binary="$(unalias codex 2>/dev/null || :; command -v codex 2>/dev/null || :)"
-    if [[ -n "${ORCA_CODEX_LAUNCH_PREFLIGHT:-}" && -n "${__orca_codex_binary:-}" && -x "${__orca_codex_binary}" ]]; then
+    if [[ -n "${ORCA_CODEX_LAUNCH_PREFLIGHT:-}" && -x "${ORCA_CODEX_LAUNCH_PREFLIGHT}" && -n "${__orca_codex_binary:-}" && -x "${__orca_codex_binary}" ]]; then
       # Why the function reserved word: it suppresses alias expansion of the name,
       # which otherwise rewrites this header at parse time and aborts the whole file.
       function codex {
diff --git a/src/main/agent-hooks/remote-hook-service-installers.test.ts b/src/main/agent-hooks/remote-hook-service-installers.test.ts
index bcb446b10ee..a1168326ac2 100644
--- a/src/main/agent-hooks/remote-hook-service-installers.test.ts
+++ b/src/main/agent-hooks/remote-hook-service-installers.test.ts
@@ -284,7 +284,7 @@ describe('remote hook service installers', () => {
       hooks: Record<string, { hooks: { command: string }[] }[]>
     }
     expect(hooks.hooks.Stop?.[0]?.hooks?.[0]?.command).toContain(
-      '/home/dev/.orca/agent-hooks/codex-hook.sh'
+      '/home/dev/.local/share/orca/codex-runtime-home/home/.orca/agent-hooks/codex-hook.sh'
     )
     expect(fs.files.get(`${runtimeHome}/config.toml`)).toContain(
       `${runtimeHome}/hooks.json:stop:0:0`
diff --git a/src/main/agent-hooks/wsl-hook-fs-adapter.ts b/src/main/agent-hooks/wsl-hook-fs-adapter.ts
index 12563b65bd8..ce2e9dd75f7 100644
--- a/src/main/agent-hooks/wsl-hook-fs-adapter.ts
+++ b/src/main/agent-hooks/wsl-hook-fs-adapter.ts
@@ -12,19 +12,23 @@ import {
   type ManagedHookDetectionSettings
 } from './managed-hook-detection-commands'
 import type { SshChannelMultiplexer } from '../ssh/ssh-channel-multiplexer'
-import { wslCodexRuntimeHomeForGuestHome } from '../pty/codex-home-wsl-env'
 import { WSL_HOOK_FS_METHODS, type WslFsResult } from '../../shared/wsl-hook-relay-contract'
+import type { AgentHookInstallStatus } from '../../shared/agent-hook-types'
 
 /** Run the shared remote hook installers against a WSL guest over the relay's fs bridge. */
 export async function installWslGuestHooks(options: {
   mux: SshChannelMultiplexer
   guestHome: string
+  codexHomePath: string | null
   distro: string
   installHooks: typeof installRemoteManagedAgentHooks
   settings: ManagedHookDetectionSettings
   warn: (message: string) => void
+  /** Canonical runtime-host installer for redirected Codex homes. */
+  installCodex: (runtimeHomePath: string, distro: string) => Promise<AgentHookInstallStatus | null>
 }): Promise<void> {
-  const { mux, guestHome, distro, installHooks, settings, warn } = options
+  const { mux, guestHome, codexHomePath, distro, installHooks, settings, warn, installCodex } =
+    options
   let agents
   try {
     const detected = (await mux.request('preflight.detectAgents', {
@@ -42,12 +46,25 @@ export async function installWslGuestHooks(options: {
   if (agents.length === 0) {
     return
   }
+  if (agents.includes('codex') && codexHomePath) {
+    try {
+      const status = await installCodex(codexHomePath, distro)
+      if (status?.state === 'error') {
+        warn(
+          `[agent-hooks] WSL Codex hook install for '${distro}' failed: ${status.detail ?? 'unknown error'}`
+        )
+      }
+    } catch (error) {
+      warn(
+        `[agent-hooks] WSL Codex hook install for '${distro}' failed: ${error instanceof Error ? error.message : String(error)}`
+      )
+    }
+  }
+  // Codex is redirected into the runtime home and must use the canonical
+  // runtime-host writer above; the relay adapter owns all other agents.
+  const remoteAgents = agents.filter((agent) => agent !== 'codex')
   const results = await installHooks(createWslHookSftpAdapter(mux), guestHome, {
-    agents,
-    // WSL Codex launches use Orca's managed runtime CODEX_HOME, not ~/.codex.
-    // Keep relay hooks in that active home so status callbacks are received.
-    codexHomeDir: wslCodexRuntimeHomeForGuestHome(guestHome),
-    deferTrustUntilConfigToml: true
+    agents: remoteAgents
   })
   const failed = results.filter((r) => r.state === 'error').length
   if (failed > 0) {
diff --git a/src/main/agent-hooks/wsl-hook-relay-deps.ts b/src/main/agent-hooks/wsl-hook-relay-deps.ts
index a7f1ef54bb4..dcff332e57b 100644
--- a/src/main/agent-hooks/wsl-hook-relay-deps.ts
+++ b/src/main/agent-hooks/wsl-hook-relay-deps.ts
@@ -9,6 +9,8 @@ import { agentHookServer } from './server'
 import type { ManagedHookDetectionSettings } from './managed-hook-detection-commands'
 import { installRemoteManagedAgentHooks } from './remote-managed-hook-installers'
 import { getOpenCodePluginSource } from '../opencode/hook-service'
+import { codexHookService } from '../codex/hook-service'
+import type { AgentHookInstallStatus } from '../../shared/agent-hook-types'
 import type { PluginSources } from '../../relay/plugin-overlay'
 import {
   isWslDistroRunning,
@@ -61,6 +63,7 @@ export type WslHookRelayManagerDeps = {
   waitForSentinel: typeof waitForWslRelaySentinel
   ingest: (envelope: Record<string, unknown>, connectionId: string) => void
   installHooks: typeof installRemoteManagedAgentHooks
+  installCodex: (runtimeHomePath: string, distro: string) => Promise<AgentHookInstallStatus | null>
   managedHookSettings: () => ManagedHookDetectionSettings
   /** Plugin source strings shipped to the guest relay so an Orca update needn't redeploy the relay bundle. */
   pluginSources: () => PluginSources
@@ -102,6 +105,11 @@ export const defaultWslHookRelayDeps: WslHookRelayManagerDeps = {
       connectionId
     ),
   installHooks: installRemoteManagedAgentHooks,
+  installCodex: (runtimeHomePath, distro) =>
+    codexHookService.installForRuntimeHomeSerialized(runtimeHomePath, {
+      runtime: 'wsl',
+      wslDistro: distro
+    }),
   managedHookSettings: () => null,
   // Why: only OpenCode is in scope for WSL now; the payload shape stays identical to SSH so Pi/OMP are additive later.
   pluginSources: () => ({ opencodePluginSource: getOpenCodePluginSource() }),
diff --git a/src/main/agent-hooks/wsl-hook-relay-guest-install.ts b/src/main/agent-hooks/wsl-hook-relay-guest-install.ts
index d7e59651a52..84cf4bfa57a 100644
--- a/src/main/agent-hooks/wsl-hook-relay-guest-install.ts
+++ b/src/main/agent-hooks/wsl-hook-relay-guest-install.ts
@@ -6,13 +6,14 @@ import type { ManagedHookDetectionSettings } from './managed-hook-detection-comm
 import type { installRemoteManagedAgentHooks } from './remote-managed-hook-installers'
 import { requestGuestOpenCodeOverlayDir } from './wsl-guest-plugin-install'
 import { installWslGuestHooks } from './wsl-hook-fs-adapter'
-import { REINSTALL_MIN_INTERVAL_MS } from './wsl-hook-relay-deps'
+import { REINSTALL_MIN_INTERVAL_MS, type WslHookRelayManagerDeps } from './wsl-hook-relay-deps'
 import type { SshChannelMultiplexer } from '../ssh/ssh-channel-multiplexer'
 import type { PluginSources } from '../../relay/plugin-overlay'
 
 /** Structural slice of WslHookRelayManagerDeps — only what an install pass uses. */
 type GuestInstallDeps = {
   installHooks: typeof installRemoteManagedAgentHooks
+  installCodex: WslHookRelayManagerDeps['installCodex']
   managedHookSettings: () => ManagedHookDetectionSettings
   pluginSources: () => PluginSources
   warn: (message: string) => void
@@ -23,6 +24,7 @@ type GuestInstallState = {
   distro: string
   mux?: SshChannelMultiplexer
   guestHome?: string
+  codexHomePath?: string
   opencodeOverlayDir?: string
   lastInstallAt?: number
 }
@@ -37,8 +39,10 @@ export async function runWslRelayGuestInstall(
   await installWslGuestHooks({
     mux,
     guestHome,
+    codexHomePath: state.codexHomePath ?? null,
     distro: state.distro,
     installHooks: deps.installHooks,
+    installCodex: deps.installCodex,
     settings: deps.managedHookSettings(),
     warn: deps.warn
   })
diff --git a/src/main/agent-hooks/wsl-hook-relay-live.integration.test.ts b/src/main/agent-hooks/wsl-hook-relay-live.integration.test.ts
index ea6856e9862..365e4d5fcd8 100644
--- a/src/main/agent-hooks/wsl-hook-relay-live.integration.test.ts
+++ b/src/main/agent-hooks/wsl-hook-relay-live.integration.test.ts
@@ -13,7 +13,8 @@ import { afterEach, beforeAll, describe, expect, it, vi } from 'vitest'
 
 import { AgentHookServer } from './server'
 import { WslHookRelayManager } from './wsl-hook-relay-manager'
-import { wslCodexRuntimeHomeForGuestHome } from '../pty/codex-home-wsl-env'
+import { createManagedHookLocalFilesystem } from './managed-hook-local-filesystem'
+import { codexHookService } from '../codex/hook-service'
 
 const BUNDLE_DIR = join(process.cwd(), 'out', 'relay', 'wsl')
 const BUNDLE_JS = join(BUNDLE_DIR, 'wsl-agent-hook-relay.js')
@@ -75,6 +76,7 @@ describe.skipIf(process.platform === 'win32')(
       const server = orcaServer
 
       const warns: string[] = []
+      const codexHome = join(fakeHome, '.local', 'share', 'orca', 'codex-runtime-home', 'home')
       manager = new WslHookRelayManager({
         platform: () => 'win32',
         remoteHooksEnabled: () => true,
@@ -102,6 +104,11 @@ describe.skipIf(process.platform === 'win32')(
             envelope as Parameters<AgentHookServer['ingestRemote']>[0],
             connectionId
           ),
+        installCodex: (runtimeHomePath) =>
+          codexHookService.installRemote(createManagedHookLocalFilesystem(), fakeHome, {
+            codexHomeDir: runtimeHomePath,
+            deferTrustUntilConfigToml: true
+          }),
         managedHookSettings: () => ({
           agentCmdOverrides: {
             claude: process.execPath,
@@ -112,15 +119,17 @@ describe.skipIf(process.platform === 'win32')(
         transientRetryDelayMs: 1
       })
 
-      manager.ensureForDistro('LiveDistro')
+      manager.ensureForDistro('LiveDistro', codexHome)
 
       // Waiting on Codex's artifact (not Claude's, which is written first) keeps the
       // assertions behind the still-running 14-agent installer loop.
-      const codexHome = wslCodexRuntimeHomeForGuestHome(fakeHome)
       await vi.waitFor(() => expect(existsSync(join(codexHome, 'hooks.json'))).toBe(true), {
         timeout: 15_000
       })
-      expect(existsSync(join(fakeHome, '.claude', 'settings.json'))).toBe(true)
+      await vi.waitFor(
+        () => expect(existsSync(join(fakeHome, '.claude', 'settings.json'))).toBe(true),
+        { timeout: 15_000 }
+      )
       const claudeScript = readFileSync(
         join(fakeHome, '.orca', 'agent-hooks', 'claude-hook.sh'),
         'utf8'
diff --git a/src/main/agent-hooks/wsl-hook-relay-manager.test.ts b/src/main/agent-hooks/wsl-hook-relay-manager.test.ts
index 797b461d133..9d92f5d131a 100644
--- a/src/main/agent-hooks/wsl-hook-relay-manager.test.ts
+++ b/src/main/agent-hooks/wsl-hook-relay-manager.test.ts
@@ -147,6 +147,8 @@ describe('WslHookRelayManager', () => {
   // hosts — installHooks is mocked here, so the fs bridge only ever serves
   // the wslfs.home request and never touches the real filesystem.
   const home = '/home/wsl-test-user'
+  const codexHome =
+    '\\\\wsl.localhost\\Ubuntu\\home\\wsl-test-user\\.local\\share\\orca\\codex-runtime-home\\home'
   const opencodeOverlayDir = `${home}/.orca-relay/opencode-overlays/deadbeefcafe`
   let harnesses: GuestHarness[]
 
@@ -229,6 +231,13 @@ describe('WslHookRelayManager', () => {
       waitForSentinel: vi.fn(async () => guestTransport()),
       ingest: vi.fn(),
       installHooks: vi.fn(async () => []),
+      installCodex: vi.fn(async () => ({
+        agent: 'codex' as const,
+        state: 'installed' as const,
+        configPath: `${home}/.local/share/orca/codex-runtime-home/home/hooks.json`,
+        managedHooksPresent: true,
+        detail: null
+      })),
       managedHookSettings: () => null,
       pluginSources: () => ({ opencodePluginSource: '// opencode plugin source' }),
       warn: vi.fn(),
@@ -240,14 +249,14 @@ describe('WslHookRelayManager', () => {
 
   it('starts one relay per distro, installs hooks, exposes the guest endpoint path, and forwards envelopes', async () => {
     const { manager, deps } = createManager({})
-    manager.ensureForDistro('Ubuntu')
-    manager.ensureForDistro('Ubuntu')
+    manager.ensureForDistro('Ubuntu', codexHome)
+    manager.ensureForDistro('Ubuntu', codexHome)
     await vi.waitFor(() => expect(deps.installHooks).toHaveBeenCalledTimes(1))
     expect(deps.spawnRelay).toHaveBeenCalledTimes(1)
+    expect(deps.installCodex).toHaveBeenCalledWith(codexHome, 'Ubuntu')
+    // Codex is owned by the canonical runtime-host writer, not the relay adapter.
     expect(deps.installHooks).toHaveBeenCalledWith(expect.anything(), home, {
-      agents: ['codex'],
-      codexHomeDir: `${home}/.local/share/orca/codex-runtime-home/home`,
-      deferTrustUntilConfigToml: true
+      agents: []
     })
 
     expect(manager.getGuestEndpointFilePath('Ubuntu')).toBe(
@@ -272,9 +281,23 @@ describe('WslHookRelayManager', () => {
     manager.disposeAll()
   })
 
+  it('reinstalls into a newly resolved runtime home without restarting the relay', async () => {
+    const { manager, deps } = createManager({})
+    manager.ensureForDistro('Ubuntu', codexHome)
+    await vi.waitFor(() => expect(deps.installCodex).toHaveBeenCalledTimes(1))
+    const nextHome = codexHome.replace('codex-runtime-home', 'codex-accounts\\account-2')
+
+    manager.ensureForDistro('ubuntu', nextHome)
+    await vi.waitFor(() => expect(deps.installCodex).toHaveBeenCalledTimes(2))
+
+    expect(deps.installCodex).toHaveBeenLastCalledWith(nextHome, 'Ubuntu')
+    expect(deps.spawnRelay).toHaveBeenCalledTimes(1)
+    manager.disposeAll()
+  })
+
   it('ships the OpenCode plugin to the guest and exposes the overlay dir', async () => {
     const { manager } = createManager({})
-    manager.ensureForDistro('Ubuntu')
+    manager.ensureForDistro('Ubuntu', codexHome)
     await vi.waitFor(() => expect(manager.getOpenCodeOverlayDir('Ubuntu')).toBe(opencodeOverlayDir))
     manager.disposeAll()
   })
@@ -397,7 +420,7 @@ describe('WslHookRelayManager', () => {
   it('stops live relays and refuses to revive them once agent status hooks are switched off', async () => {
     const settings = { agentStatusHooksEnabled: true }
     const { manager, deps } = createManager({ managedHookSettings: () => settings })
-    manager.ensureForDistro('Ubuntu')
+    manager.ensureForDistro('Ubuntu', codexHome)
     await vi.waitFor(() => expect(deps.installHooks).toHaveBeenCalledTimes(1))
 
     settings.agentStatusHooksEnabled = false
@@ -414,6 +437,8 @@ describe('WslHookRelayManager', () => {
     settings.agentStatusHooksEnabled = true
     manager.resumeStoppedRelays()
     await vi.waitFor(() => expect(deps.spawnRelay).toHaveBeenCalledTimes(2))
+    await vi.waitFor(() => expect(deps.installCodex).toHaveBeenCalledTimes(2))
+    expect(deps.installCodex).toHaveBeenLastCalledWith(codexHome, 'Ubuntu')
     manager.disposeAll()
   })
 
diff --git a/src/main/agent-hooks/wsl-hook-relay-manager.ts b/src/main/agent-hooks/wsl-hook-relay-manager.ts
index 74d163ca42f..1a414df5898 100644
--- a/src/main/agent-hooks/wsl-hook-relay-manager.ts
+++ b/src/main/agent-hooks/wsl-hook-relay-manager.ts
@@ -29,6 +29,10 @@ import {
   WSL_HOOK_FS_METHODS,
   wslHookRelayEndpointFilePath
 } from '../../shared/wsl-hook-relay-contract'
+import {
+  recordManagedWslCodexHome,
+  wslRuntimeHomePathsEqual
+} from '../codex/managed-wsl-codex-home-registry'
 
 type DistroState = {
   /** Original casing for wsl.exe argv and breadcrumbs; map keys are lowercased. */
@@ -37,6 +41,7 @@ type DistroState = {
   child?: ChildProcessWithoutNullStreams
   mux?: SshChannelMultiplexer
   guestHome?: string
+  codexHomePath?: string
   guestEndpointFilePath?: string
   opencodeOverlayDir?: string
   failures: number
@@ -52,7 +57,7 @@ export class WslHookRelayManager {
   private recovery: WslRelayRecovery
   private states = new Map<string, DistroState>()
   /** Distros a hooks-off teardown stopped, so re-enabling can put them back. */
-  private stoppedByHooksOff = new Set<string>()
+  private stoppedByHooksOff = new Map<string, string | undefined>()
   private defaultDistro: string | null = null
   private disposed = false
   private warnedBundleMissing = false
@@ -64,7 +69,7 @@ export class WslHookRelayManager {
       warn: (message) => this.deps.warn(message),
       isDisposed: () => this.disposed,
       isCurrent: (state) => this.states.get(wslHookRelayStateKey(state.distro)) === state,
-      restart: (distro) => this.ensureForDistro(distro),
+      restart: (distro) => this.ensureForDistro(distro, this.stateFor(distro)?.codexHomePath),
       dropState: (state) => {
         // Why: identity-guarded — a fresh ensure() may own this key by now;
         // deleting by key alone would orphan its live relay child.
@@ -81,11 +86,11 @@ export class WslHookRelayManager {
   }
 
   /** Fire-and-forget from every WSL PTY spawn-env build; errors breadcrumb. */
-  ensureForDistro(distro: string | null): void {
+  ensureForDistro(distro: string | null, codexHomePath?: string | null): void {
     if (this.disposed || !isWslHookRelayAllowed(this.deps)) {
       return
     }
-    void this.ensureInternal(distro).catch((err) => {
+    void this.ensureInternal(distro, codexHomePath ?? undefined).catch((err) => {
       const detail = err instanceof Error ? err.message : String(err)
       this.deps.warn(`[agent-hooks] WSL hook relay ensure failed: ${detail}`)
     })
@@ -118,7 +123,7 @@ export class WslHookRelayManager {
       state.mux?.dispose()
       state.child?.kill()
       if (!permanent) {
-        this.stoppedByHooksOff.add(state.distro)
+        this.stoppedByHooksOff.set(state.distro, state.codexHomePath)
       }
     }
     this.states.clear()
@@ -129,26 +134,39 @@ export class WslHookRelayManager {
   resumeStoppedRelays(): void {
     const distros = [...this.stoppedByHooksOff]
     this.stoppedByHooksOff.clear()
-    for (const distro of distros) {
+    for (const [distro, codexHomePath] of distros) {
       void this.deps
         .isDistroRunning(distro)
         .then((running) => {
           if (running) {
-            this.ensureForDistro(distro)
+            this.ensureForDistro(distro, codexHomePath)
           }
         })
         .catch(() => undefined)
     }
   }
 
-  private async ensureInternal(requestedDistro: string | null): Promise<void> {
+  private async ensureInternal(
+    requestedDistro: string | null,
+    requestedCodexHomePath?: string
+  ): Promise<void> {
     const distro = requestedDistro ?? (await this.resolveDefaultDistro())
     if (!distro || this.disposed) {
       return
     }
     const key = wslHookRelayStateKey(distro)
     const existing = this.states.get(key)
+    if (requestedCodexHomePath) {
+      recordManagedWslCodexHome(distro, requestedCodexHomePath)
+    }
     if (existing) {
+      if (
+        requestedCodexHomePath &&
+        !wslRuntimeHomePathsEqual(existing.codexHomePath, requestedCodexHomePath)
+      ) {
+        existing.codexHomePath = requestedCodexHomePath
+        existing.lastInstallAt = 0
+      }
       if (existing.phase === 'running') {
         void maybeRerunWslRelayGuestInstall(this.deps, existing)
         return
@@ -184,6 +202,7 @@ export class WslHookRelayManager {
       // Why: instance-keyed and on the distro's persistent fs, so it outlives a relay
       // crash — dropping it would blank status on panes spawned mid-relaunch.
       opencodeOverlayDir: existing?.opencodeOverlayDir,
+      codexHomePath: requestedCodexHomePath ?? existing?.codexHomePath,
       cooldownUntil: 0
     }
     this.states.set(key, state)
diff --git a/src/main/codex/codex-trust-config-mutation-queue.test.ts b/src/main/codex/codex-trust-config-mutation-queue.test.ts
index e2d775b4ed7..f07c047c203 100644
--- a/src/main/codex/codex-trust-config-mutation-queue.test.ts
+++ b/src/main/codex/codex-trust-config-mutation-queue.test.ts
@@ -108,4 +108,36 @@ describe('runExclusivelyForCodexTrustConfig', () => {
     await queued
     expect(secondStarted).toBe(true)
   })
+
+  it('coalesces WSL UNC aliases without folding the case-sensitive Linux path', async () => {
+    const aliasGate = deferred()
+    let aliasStarted = false
+    const blockedAlias = runExclusivelyForCodexTrustConfig(
+      String.raw`\\wsl.localhost\Ubuntu\home\Alice\.codex\config.toml`,
+      () => aliasGate.promise
+    )
+    const queuedAlias = runExclusivelyForCodexTrustConfig(
+      String.raw`\\wsl$\ubuntu\home\Alice\.codex\config.toml`,
+      () => {
+        aliasStarted = true
+        return Promise.resolve()
+      }
+    )
+    await Promise.resolve()
+    expect(aliasStarted).toBe(false)
+
+    let distinctStarted = false
+    await runExclusivelyForCodexTrustConfig(
+      String.raw`\\wsl.localhost\Ubuntu\home\alice\.codex\config.toml`,
+      async () => {
+        distinctStarted = true
+      }
+    )
+    expect(distinctStarted).toBe(true)
+
+    aliasGate.resolve()
+    await blockedAlias
+    await queuedAlias
+    expect(aliasStarted).toBe(true)
+  })
 })
diff --git a/src/main/codex/hook-service-wsl-runtime.test.ts b/src/main/codex/hook-service-wsl-runtime.test.ts
index 5694e4fe9bb..05baab50912 100644
--- a/src/main/codex/hook-service-wsl-runtime.test.ts
+++ b/src/main/codex/hook-service-wsl-runtime.test.ts
@@ -16,6 +16,7 @@ import {
   type CodexTrustEntry
 } from './config-toml-trust'
 import {
+  CodexHookService,
   _internals,
   createCodexWslRuntimeHookInstallPlan,
   type CodexWslRuntimeHookInstallPlan
@@ -82,7 +83,67 @@ function expectedManagedCommand(scriptPath: string): string {
 }
 
 describe('Codex WSL runtime hook install', () => {
-  it('plans WSL hook files with Linux command and trust paths', async () => {
+  it('coalesces aliases of one runtime home without blocking independent homes', async () => {
+    const service = new CodexHookService()
+    const releases: (() => void)[] = []
+    const started: string[] = []
+    vi.spyOn(service, 'installForRuntimeHome').mockImplementation(async (runtimeHomePath) => {
+      started.push(runtimeHomePath!)
+      await new Promise<void>((resolve) => releases.push(resolve))
+      return null
+    })
+    const firstHome = '\\\\wsl$\\Ubuntu\\home\\Alice\\.local\\share\\orca\\codex-runtime-home\\home'
+    const alias = firstHome.replace('\\\\wsl$', '\\\\wsl.localhost')
+    const independent = firstHome.replace('\\Alice\\', '\\Bob\\')
+
+    const first = service.installForRuntimeHomeSerialized(firstHome)
+    const second = service.installForRuntimeHomeSerialized(alias)
+    const third = service.installForRuntimeHomeSerialized(independent)
+    await vi.waitFor(() => expect(started).toEqual([firstHome, independent]))
+    expect(second).toBe(first)
+
+    releases.splice(0).forEach((release) => release())
+    await Promise.all([first, second, third])
+    expect(started).toEqual([firstHome, independent])
+  })
+
+  it('does not coalesce one drive-backed home across WSL distros', async () => {
+    const service = new CodexHookService()
+    const started: string[] = []
+    vi.spyOn(service, 'installForRuntimeHome').mockImplementation(async (_runtimeHome, target) => {
+      started.push(target?.wslDistro ?? '')
+      return null
+    })
+    const home = 'D:\\wsl-home\\.local\\share\\orca\\codex-runtime-home\\home'
+
+    await Promise.all([
+      service.installForRuntimeHomeSerialized(home, { runtime: 'wsl', wslDistro: 'Ubuntu' }),
+      service.installForRuntimeHomeSerialized(home, { runtime: 'wsl', wslDistro: 'Debian' })
+    ])
+
+    expect(started).toEqual(['Ubuntu', 'Debian'])
+  })
+
+  it('keeps case-distinct Linux runtime homes on separate queues', async () => {
+    const service = new CodexHookService()
+    const started: string[] = []
+    vi.spyOn(service, 'installForRuntimeHome').mockImplementation(async (runtimeHomePath) => {
+      started.push(runtimeHomePath!)
+      return null
+    })
+    const upper =
+      '\\\\wsl.localhost\\Ubuntu\\home\\Alice\\.local\\share\\orca\\codex-runtime-home\\home'
+    const lower = upper.replace('\\Alice\\', '\\alice\\')
+
+    await Promise.all([
+      service.installForRuntimeHomeSerialized(upper),
+      service.installForRuntimeHomeSerialized(lower)
+    ])
+
+    expect(started).toEqual([upper, lower])
+  })
+
+  it('plans WSL hook files with Linux command and trust paths', () => {
     const runtimeHome =
       '\\\\wsl.localhost\\Ubuntu\\home\\alice\\.local\\share\\orca\\codex-runtime-home\\home'
 
diff --git a/src/main/codex/hook-service.ts b/src/main/codex/hook-service.ts
index 0ea7837f154..4e58f947dee 100644
--- a/src/main/codex/hook-service.ts
+++ b/src/main/codex/hook-service.ts
@@ -1075,6 +1075,7 @@ export class CodexHookService {
   }
 
   private readonly wslReconciliationGeneration = new Map<string, number>()
+  private readonly wslInstallsInFlight = new Map<string, Promise<AgentHookInstallStatus | null>>()
 
   private supersedeWslReconciliation(runtimeHomePath: string | null | undefined): number {
     if (!runtimeHomePath) {
@@ -1171,6 +1172,30 @@ export class CodexHookService {
     }
   }
 
+  installForRuntimeHomeSerialized(
+    runtimeHomePath: string | null | undefined,
+    target?: CodexWslRuntimeHookTarget
+  ): Promise<AgentHookInstallStatus | null> {
+    if (!runtimeHomePath) {
+      return Promise.resolve(null)
+    }
+    const targetKey = target?.runtime === 'wsl' ? target.wslDistro?.trim().toLowerCase() : ''
+    const key = `${getWslReconciliationKey(runtimeHomePath)}\0${targetKey ?? ''}`
+    const active = this.wslInstallsInFlight.get(key)
+    if (active) {
+      return active
+    }
+    const install = this.installForRuntimeHome(runtimeHomePath, target)
+    this.wslInstallsInFlight.set(key, install)
+    const clear = (): void => {
+      if (this.wslInstallsInFlight.get(key) === install) {
+        this.wslInstallsInFlight.delete(key)
+      }
+    }
+    void install.then(clear, clear)
+    return install
+  }
+
   refreshRuntimeUserHooksForRuntimeHome(
     runtimeHomePath: string | null | undefined,
     target?: CodexWslRuntimeHookTarget
@@ -1486,7 +1511,13 @@ export class CodexHookService {
       options?.codexHomeDir?.replace(/\/$/, '') ?? `${remoteHome.replace(/\/$/, '')}/.codex`
     const remoteConfigPath = `${codexHomeBase}/hooks.json`
     const remoteTomlPath = `${codexHomeBase}/config.toml`
-    const remoteScriptPath = `${remoteHome.replace(/\/$/, '')}/.orca/agent-hooks/codex-hook.sh`
+    // Redirected WSL homes must use the same script location and command shape
+    // as the runtime installer; two representations of one hooks.json race
+    // into stale trust keys. Plain SSH keeps its guest-home script contract.
+    const redirectedCodexHome = options?.codexHomeDir?.replace(/\/$/, '')
+    const remoteScriptPath = redirectedCodexHome
+      ? `${redirectedCodexHome}/.orca/agent-hooks/codex-hook.sh`
+      : `${remoteHome.replace(/\/$/, '')}/.orca/agent-hooks/codex-hook.sh`
     try {
       const config = await readHooksJsonRemote(sftp, remoteConfigPath)
       if (!config) {
@@ -1499,7 +1530,9 @@ export class CodexHookService {
         }
       }
 
-      const command = wrapPosixHookCommand(remoteScriptPath)
+      const command = redirectedCodexHome
+        ? wrapReadablePosixHookCommand(remoteScriptPath)
+        : wrapPosixHookCommand(remoteScriptPath)
       const nextHooks = { ...config.hooks }
       const managedEvents = new Set<string>(CODEX_EVENTS)
       const isManagedCommand = createManagedCommandMatcher('codex-hook.sh')
@@ -1523,11 +1556,13 @@ export class CodexHookService {
         const definition: HookDefinition = {
           hooks: [buildManagedCommandHook(command)]
         }
-        nextHooks[eventName] = [...cleaned, definition]
+        nextHooks[eventName] = redirectedCodexHome
+          ? [definition, ...cleaned]
+          : [...cleaned, definition]
         trustEntries.push({
           sourcePath: remoteConfigPath,
           eventLabel: CODEX_EVENT_LABEL[eventName],
-          groupIndex: cleaned.length,
+          groupIndex: redirectedCodexHome ? 0 : cleaned.length,
           handlerIndex: 0,
           command,
           timeoutSec: MANAGED_HOOK_TIMEOUT_SECONDS
diff --git a/src/main/codex/managed-home-shell-preflight.test.ts b/src/main/codex/managed-home-shell-preflight.test.ts
index 8cc519d3c79..31a98a30b2f 100644
--- a/src/main/codex/managed-home-shell-preflight.test.ts
+++ b/src/main/codex/managed-home-shell-preflight.test.ts
@@ -2,10 +2,25 @@ import { mkdirSync, mkdtempSync, rmSync, symlinkSync, writeFileSync } from 'node
 import { tmpdir } from 'node:os'
 import { join } from 'node:path'
 import { afterEach, describe, expect, it, vi } from 'vitest'
+
+const { wslRealpathMock } = vi.hoisted(() => ({
+  wslRealpathMock: vi.fn(async (path: string) => path)
+}))
+
+vi.mock('node:fs/promises', () => ({ realpath: wslRealpathMock }))
+
 import {
   prepareManagedCodexHomeBeforeShellLaunch,
   resolveManagedCodexShellPreflightHome
 } from './managed-home-shell-preflight'
+import {
+  prepareManagedWslCodexHomeBeforeShellLaunch,
+  resolveManagedWslCodexShellPreflightTarget
+} from './managed-wsl-home-shell-preflight'
+import {
+  _internals as managedWslHomeRegistryInternals,
+  recordManagedWslCodexHome
+} from './managed-wsl-codex-home-registry'
 
 const roots: string[] = []
 
@@ -16,6 +31,8 @@ function makeRoot(): string {
 }
 
 afterEach(() => {
+  wslRealpathMock.mockClear()
+  managedWslHomeRegistryInternals.clearRecordedManagedWslCodexHomes()
   for (const root of roots.splice(0)) {
     rmSync(root, { recursive: true, force: true })
   }
@@ -160,3 +177,123 @@ describe('managed Codex shell preflight', () => {
     ).toBeNull()
   })
 })
+
+describe('managed WSL Codex shell preflight', () => {
+  const home = '/home/jin/.local/share/orca/codex-runtime-home/home'
+  const runtimeHome =
+    '\\\\wsl.localhost\\Ubuntu-24.04\\home\\jin\\.local\\share\\orca\\codex-runtime-home\\home'
+  const env = {
+    CODEX_HOME: home,
+    ORCA_CODEX_HOME: home,
+    WSL_DISTRO_NAME: 'Ubuntu-24.04'
+  }
+
+  it('targets the pane-selected managed home through its UNC twin', () => {
+    recordManagedWslCodexHome('Ubuntu-24.04', runtimeHome)
+    expect(resolveManagedWslCodexShellPreflightTarget(env)).toEqual({
+      runtimeHomePath: runtimeHome,
+      wslDistro: 'Ubuntu-24.04'
+    })
+  })
+
+  it('reconstructs a validated managed home when a restarted runtime has no record', () => {
+    expect(resolveManagedWslCodexShellPreflightTarget(env)).toEqual({
+      runtimeHomePath: runtimeHome,
+      wslDistro: 'Ubuntu-24.04'
+    })
+  })
+
+  it('installs once through the WSL runtime-home lane while hooks are enabled', async () => {
+    recordManagedWslCodexHome('Ubuntu-24.04', runtimeHome)
+    const status = {
+      agent: 'codex' as const,
+      state: 'installed' as const,
+      configPath: 'config.toml',
+      managedHooksPresent: true,
+      detail: null
+    }
+    const install = vi.fn(() => status)
+
+    await expect(
+      prepareManagedWslCodexHomeBeforeShellLaunch({ env, hooksEnabled: true, install })
+    ).resolves.toBe(status)
+    expect(install).toHaveBeenCalledExactlyOnceWith(runtimeHome, {
+      runtime: 'wsl',
+      wslDistro: 'Ubuntu-24.04'
+    })
+
+    await expect(
+      prepareManagedWslCodexHomeBeforeShellLaunch({ env, hooksEnabled: false, install })
+    ).resolves.toBeNull()
+    expect(install).toHaveBeenCalledTimes(1)
+  })
+
+  it.each([
+    [
+      'a user home',
+      { ...env, CODEX_HOME: '/home/jin/.codex', ORCA_CODEX_HOME: '/home/jin/.codex' }
+    ],
+    ['unequal routing markers', { ...env, ORCA_CODEX_HOME: `${home}-other` }],
+    [
+      'a parent traversal',
+      {
+        ...env,
+        CODEX_HOME: `/home/jin/../jin${home.slice('/home/jin'.length)}`,
+        ORCA_CODEX_HOME: `/home/jin/../jin${home.slice('/home/jin'.length)}`
+      }
+    ],
+    [
+      'a dot segment',
+      {
+        ...env,
+        CODEX_HOME: `/home/./jin${home.slice('/home/jin'.length)}`,
+        ORCA_CODEX_HOME: `/home/./jin${home.slice('/home/jin'.length)}`
+      }
+    ],
+    [
+      'a host path',
+      { ...env, CODEX_HOME: 'C:\\Users\\jin\\.codex', ORCA_CODEX_HOME: 'C:\\Users\\jin\\.codex' }
+    ],
+    ['a missing distro', { ...env, WSL_DISTRO_NAME: '' }],
+    ['a distro path escape', { ...env, WSL_DISTRO_NAME: 'Ubuntu\\..\\host' }],
+    [
+      'a repeated separator',
+      {
+        ...env,
+        CODEX_HOME: home.replace('/jin/', '/jin//'),
+        ORCA_CODEX_HOME: home.replace('/jin/', '/jin//')
+      }
+    ]
+  ])('rejects %s', (_label, candidate) => {
+    recordManagedWslCodexHome('Ubuntu-24.04', runtimeHome)
+    expect(resolveManagedWslCodexShellPreflightTarget(candidate)).toBeNull()
+  })
+
+  it('preserves a recorded runtime spelling for a managed account home', () => {
+    const directHome = '/home/jin/.local/share/orca/codex-accounts/account-1/home'
+    const directRuntimeHome =
+      '\\\\wsl$\\Ubuntu-24.04\\home\\jin\\.local\\share\\orca\\codex-accounts\\account-1\\home'
+    recordManagedWslCodexHome('Ubuntu-24.04', directRuntimeHome)
+
+    expect(
+      resolveManagedWslCodexShellPreflightTarget({
+        CODEX_HOME: directHome,
+        ORCA_CODEX_HOME: directHome,
+        WSL_DISTRO_NAME: 'ubuntu-24.04'
+      })
+    ).toEqual({ runtimeHomePath: directRuntimeHome, wslDistro: 'ubuntu-24.04' })
+  })
+
+  it('never authorizes a WSL system home even when it was offered by a PTY lane', () => {
+    const systemHome = '/home/jin/.codex'
+    recordManagedWslCodexHome('Ubuntu-24.04', '\\\\wsl.localhost\\Ubuntu-24.04\\home\\jin\\.codex')
+
+    expect(
+      resolveManagedWslCodexShellPreflightTarget({
+        CODEX_HOME: systemHome,
+        ORCA_CODEX_HOME: systemHome,
+        WSL_DISTRO_NAME: 'Ubuntu-24.04'
+      })
+    ).toBeNull()
+  })
+})
diff --git a/src/main/codex/managed-wsl-codex-home-registry.ts b/src/main/codex/managed-wsl-codex-home-registry.ts
new file mode 100644
index 00000000000..3641f991d24
--- /dev/null
+++ b/src/main/codex/managed-wsl-codex-home-registry.ts
@@ -0,0 +1,115 @@
+import { win32 as pathWin32 } from 'node:path'
+import {
+  foldWslUncPathCaseInsensitiveParts,
+  parseWslUncPath,
+  toWindowsWslPath
+} from '../../shared/wsl-paths'
+
+type ManagedWslCodexHome = {
+  runtimeHomePath: string
+  linuxHomePath: string
+}
+
+const managedHomesByDistro = new Map<string, Map<string, ManagedWslCodexHome>>()
+
+function distroKey(distro: string): string {
+  return distro.trim().toLowerCase()
+}
+
+export function isAbsolutePosixPathWithoutDotSegments(value: string): boolean {
+  const segments = value.split('/').slice(1)
+  return (
+    value.startsWith('/') &&
+    !value.startsWith('//') &&
+    !value.includes('\\') &&
+    segments.every((segment) => segment && segment !== '.' && segment !== '..')
+  )
+}
+
+function isOrcaManagedWslCodexHome(linuxHomePath: string): boolean {
+  const segments = linuxHomePath.split('/').filter(Boolean)
+  const orcaIndex = segments.findIndex(
+    (segment, index) =>
+      segment === 'orca' && segments[index - 1] === 'share' && segments[index - 2] === '.local'
+  )
+  if (orcaIndex === -1) {
+    return false
+  }
+  const tail = segments.slice(orcaIndex + 1)
+  return (
+    (tail.length === 2 && tail[0] === 'codex-runtime-home' && tail[1] === 'home') ||
+    (tail.length === 3 && tail[0] === 'codex-accounts' && Boolean(tail[1]) && tail[2] === 'home')
+  )
+}
+
+function linuxHomeForRuntimePath(runtimeHomePath: string, distro: string): string | null {
+  const wsl = parseWslUncPath(runtimeHomePath)
+  if (wsl) {
+    return wsl.distro.toLowerCase() === distroKey(distro) ? wsl.linuxPath : null
+  }
+  const drive = runtimeHomePath.match(/^([A-Za-z]):[/\\](.*)$/)
+  return drive ? `/mnt/${drive[1].toLowerCase()}/${drive[2].replace(/\\/g, '/')}` : null
+}
+
+export function recordManagedWslCodexHome(distro: string, runtimeHomePath: string): void {
+  const normalizedDistro = distro.trim()
+  const linuxHomePath = linuxHomeForRuntimePath(runtimeHomePath, normalizedDistro)
+  if (
+    !normalizedDistro ||
+    /[\\/\r\n]/.test(normalizedDistro) ||
+    !linuxHomePath ||
+    !isAbsolutePosixPathWithoutDotSegments(linuxHomePath) ||
+    !isOrcaManagedWslCodexHome(linuxHomePath)
+  ) {
+    return
+  }
+  const homes = managedHomesByDistro.get(distroKey(normalizedDistro)) ?? new Map()
+  homes.set(linuxHomePath, { runtimeHomePath, linuxHomePath })
+  managedHomesByDistro.set(distroKey(normalizedDistro), homes)
+}
+
+export function resolveRecordedManagedWslCodexHome(
+  distro: string,
+  linuxHomePath: string
+): string | null {
+  if (
+    !distro.trim() ||
+    /[\\/\r\n]/.test(distro) ||
+    !isAbsolutePosixPathWithoutDotSegments(linuxHomePath)
+  ) {
+    return null
+  }
+  return managedHomesByDistro.get(distroKey(distro))?.get(linuxHomePath)?.runtimeHomePath ?? null
+}
+
+export function resolveManagedWslCodexHome(distro: string, linuxHomePath: string): string | null {
+  if (
+    !distro.trim() ||
+    /[\\/\r\n]/.test(distro) ||
+    !isAbsolutePosixPathWithoutDotSegments(linuxHomePath) ||
+    !isOrcaManagedWslCodexHome(linuxHomePath)
+  ) {
+    return null
+  }
+  return (
+    resolveRecordedManagedWslCodexHome(distro, linuxHomePath) ??
+    toWindowsWslPath(linuxHomePath, distro)
+  )
+}
+
+export function wslRuntimeHomePathsEqual(left: string | undefined, right: string): boolean {
+  if (!left) {
+    return false
+  }
+  const leftWsl = foldWslUncPathCaseInsensitiveParts(left)
+  const rightWsl = foldWslUncPathCaseInsensitiveParts(right)
+  if (leftWsl || rightWsl) {
+    return leftWsl !== null && leftWsl === rightWsl
+  }
+  return pathWin32.normalize(left).toLowerCase() === pathWin32.normalize(right).toLowerCase()
+}
+
+export const _internals = {
+  clearRecordedManagedWslCodexHomes: () => managedHomesByDistro.clear(),
+  isOrcaManagedWslCodexHome
+}
diff --git a/src/main/codex/managed-wsl-home-shell-preflight.ts b/src/main/codex/managed-wsl-home-shell-preflight.ts
new file mode 100644
index 00000000000..854869ab05a
--- /dev/null
+++ b/src/main/codex/managed-wsl-home-shell-preflight.ts
@@ -0,0 +1,75 @@
+import { realpath } from 'node:fs/promises'
+import type { AgentHookInstallStatus } from '../../shared/agent-hook-types'
+import { withTimeout } from '../../shared/promise-timeout-fallback'
+import type { CodexWslRuntimeHookTarget } from './codex-wsl-hook-install-plan'
+import { codexHookService } from './hook-service'
+import {
+  isAbsolutePosixPathWithoutDotSegments,
+  resolveManagedWslCodexHome,
+  wslRuntimeHomePathsEqual
+} from './managed-wsl-codex-home-registry'
+
+type WslShellPreflightEnvironment = {
+  CODEX_HOME?: string
+  ORCA_CODEX_HOME?: string
+  WSL_DISTRO_NAME?: string
+}
+
+const WSL_MANAGED_HOME_REALPATH_TIMEOUT_MS = 5_000
+
+export type ManagedWslCodexShellPreflightTarget = {
+  runtimeHomePath: string
+  wslDistro: string
+}
+
+export function resolveManagedWslCodexShellPreflightTarget(
+  env: WslShellPreflightEnvironment
+): ManagedWslCodexShellPreflightTarget | null {
+  const codexHome = env.CODEX_HOME?.trim()
+  const orcaCodexHome = env.ORCA_CODEX_HOME?.trim()
+  const wslDistro = env.WSL_DISTRO_NAME?.trim()
+  if (
+    !codexHome ||
+    codexHome !== orcaCodexHome ||
+    !wslDistro ||
+    /[\\/\r\n]/.test(wslDistro) ||
+    !isAbsolutePosixPathWithoutDotSegments(codexHome)
+  ) {
+    return null
+  }
+  const runtimeHomePath = resolveManagedWslCodexHome(wslDistro, codexHome)
+  return runtimeHomePath ? { runtimeHomePath, wslDistro } : null
+}
+
+export async function prepareManagedWslCodexHomeBeforeShellLaunch(args: {
+  env: WslShellPreflightEnvironment
+  hooksEnabled: boolean
+  install?: (
+    runtimeHomePath: string,
+    target: CodexWslRuntimeHookTarget
+  ) => AgentHookInstallStatus | Promise<AgentHookInstallStatus | null> | null
+}): Promise<AgentHookInstallStatus | null> {
+  if (!args.hooksEnabled) {
+    return null
+  }
+  const target = resolveManagedWslCodexShellPreflightTarget(args.env)
+  if (!target) {
+    return null
+  }
+  const realHome = await withTimeout(
+    realpath(target.runtimeHomePath),
+    WSL_MANAGED_HOME_REALPATH_TIMEOUT_MS,
+    null
+  )
+  if (!realHome || !wslRuntimeHomePathsEqual(realHome, target.runtimeHomePath)) {
+    return null
+  }
+  const install =
+    args.install ??
+    ((home: string, hookTarget: CodexWslRuntimeHookTarget) =>
+      codexHookService.installForRuntimeHomeSerialized(home, hookTarget))
+  return await install(target.runtimeHomePath, {
+    runtime: 'wsl',
+    wslDistro: target.wslDistro
+  })
+}
diff --git a/src/main/ipc/pty-spawn-env-terminal-basics.test.ts b/src/main/ipc/pty-spawn-env-terminal-basics.test.ts
index 18fbf7019f2..54ec3e7663c 100644
--- a/src/main/ipc/pty-spawn-env-terminal-basics.test.ts
+++ b/src/main/ipc/pty-spawn-env-terminal-basics.test.ts
@@ -7,6 +7,7 @@ import { LocalPtyProvider } from '../providers/local-pty-provider'
 import { __resetPersistedWindowsPathCacheForTests } from '../pty/windows-environment-path'
 import { __setWindowsPathRegistryLoaderForTests } from '../pty/windows-path-registry-reader'
 import { hasLiveClaudePtys, markClaudePtySpawned } from '../claude-accounts/live-pty-gate'
+import { wslHookRelayManager } from '../agent-hooks/wsl-hook-relay-manager'
 import { registerPtyHandlers, buildPtyHostEnv, clearProviderPtyState } from './pty'
 
 vi.mock('electron', () => import('./pty-ipc-mock-registry').then((m) => m.electronModuleMock()))
@@ -57,6 +58,32 @@ describe('registerPtyHandlers', () => {
   const { handlers, mainWindow, spawnAndGetEnv, withBundledCli } = setupPtyIpcSuite()
 
   describe('spawn environment', () => {
+    it('passes the PTY-resolved Codex home to the WSL relay lane', () => {
+      const runtimeHome =
+        '\\\\wsl.localhost\\Ubuntu\\home\\jin\\.local\\share\\orca\\codex-runtime-home\\home'
+      const ensureForDistro = vi
+        .spyOn(wslHookRelayManager, 'ensureForDistro')
+        .mockImplementation(() => {})
+
+      try {
+        buildPtyHostEnv(
+          'pty-wsl',
+          {},
+          {
+            isPackaged: true,
+            userDataPath: '/tmp/orca-user-data',
+            selectedCodexHomePath: runtimeHome,
+            isWsl: true,
+            wslDistro: 'Ubuntu',
+            agentStatusHooksEnabled: true
+          }
+        )
+        expect(ensureForDistro).toHaveBeenCalledExactlyOnceWith('Ubuntu', runtimeHome)
+      } finally {
+        ensureForDistro.mockRestore()
+      }
+    })
+
     it('refreshes the outer Windows PATH for a WSL spawn without forwarding it', async () => {
       const originalPlatform = process.platform
       Object.defineProperty(process, 'platform', { configurable: true, value: 'win32' })
diff --git a/src/main/ipc/pty/host-env/assembly.ts b/src/main/ipc/pty/host-env/assembly.ts
index 569b40052df..cee3bf5c50b 100644
--- a/src/main/ipc/pty/host-env/assembly.ts
+++ b/src/main/ipc/pty/host-env/assembly.ts
@@ -122,7 +122,7 @@ export function buildPtyHostEnv(
     if (opts.isWsl === true) {
       // Why: hook POSTs to 127.0.0.1 die inside WSL's NAT namespace; use the guest-resident relay's endpoint instead of the Windows one.
       const distro = opts.wslDistro ?? null
-      wslHookRelayManager.ensureForDistro(distro)
+      wslHookRelayManager.ensureForDistro(distro, opts.selectedCodexHomePath)
       const guestEndpoint = wslHookRelayManager.getGuestEndpointFilePath(distro)
       if (guestEndpoint) {
         baseEnv.ORCA_AGENT_HOOK_ENDPOINT = guestEndpoint
diff --git a/src/main/pty/codex-preflight-profile-path-rewrite.test.ts b/src/main/pty/codex-preflight-profile-path-rewrite.test.ts
index abf189de356..4649b5636a3 100644
--- a/src/main/pty/codex-preflight-profile-path-rewrite.test.ts
+++ b/src/main/pty/codex-preflight-profile-path-rewrite.test.ts
@@ -162,13 +162,13 @@ describe.skipIf(!bashAvailable)('Codex preflight under a profile-rewritten PATH'
     expect(readFileSync(fixture.codexMarker, 'utf-8').trim()).toBe('--alias-flag --version')
   })
 
-  // Why: pins the defect itself, so a regression back to an unqualified name fails here.
-  it('would run the impostor if the preflight carried an unqualified command name', () => {
+  // Why: an unqualified preflight is rejected so profile PATH entries cannot hijack it.
+  it('skips an unqualified preflight value while still launching codex', () => {
     const fixture = buildFixture()
 
     launchCodexThroughRcfile(fixture, 'orca')
 
-    expect(existsSync(fixture.hijackMarker)).toBe(true)
+    expect(existsSync(fixture.hijackMarker)).toBe(false)
     expect(existsSync(fixture.intendedMarker)).toBe(false)
     expect(existsSync(fixture.codexMarker)).toBe(true)
   })
diff --git a/src/main/pty/codex-shell-launch-preflight.test.ts b/src/main/pty/codex-shell-launch-preflight.test.ts
index 2aff785446b..be8d84537c9 100644
--- a/src/main/pty/codex-shell-launch-preflight.test.ts
+++ b/src/main/pty/codex-shell-launch-preflight.test.ts
@@ -170,6 +170,30 @@ describe.skipIf(process.platform === 'win32')('Codex shell launch preflight', ()
     )
   })
 
+  it('does not trigger a preflight outside an Orca terminal', () => {
+    const root = mkdtempSync(join(tmpdir(), 'orca-codex-plain-shell-'))
+    roots.push(root)
+    const bin = join(root, 'bin')
+    const marker = join(root, 'preflight-ran')
+    mkdirSync(bin)
+    writeExecutable(join(bin, 'codex'), '#!/bin/sh\nprintf launched\n')
+    writeExecutable(join(bin, 'orca-test'), `#!/bin/sh\nprintf ran > ${JSON.stringify(marker)}\n`)
+
+    const output = execFileSync(
+      '/bin/bash',
+      ['--noprofile', '--norc', '-c', `${getPosixCodexShellLaunchPreflight()}\ncodex`],
+      {
+        encoding: 'utf-8',
+        env: {
+          PATH: `${bin}${delimiter}${process.env.PATH ?? ''}`
+        }
+      }
+    )
+
+    expect(output.trim()).toBe('launched')
+    expect(existsSync(marker)).toBe(false)
+  })
+
   // Why a loop over it.each: an early `return` reported green on hosts without the
   // shell, so the zsh half silently never ran on Linux. skipIf reports it as a skip.
   for (const [shell, strict] of [
@@ -319,6 +343,24 @@ describe('Codex shell launch preflight command', () => {
     ).toBe(launcherPath)
   })
 
+  it('carries the packaged Windows launcher for WSLENV path translation', () => {
+    const { userDataPath, resourcesPath } = makeCliRoot()
+    const launcherPath = join(resourcesPath, 'bin', 'orca.exe')
+    writeExecutable(launcherPath, '#!/bin/sh\nexit 0\n')
+
+    expect(
+      resolveCodexShellLaunchPreflightCommand({
+        hooksEnabled: true,
+        isPackaged: true,
+        isWsl: true,
+        managedHomePath: '/home/jin/.local/share/orca/codex-runtime-home/home',
+        userDataPath,
+        resourcesPath,
+        platform: 'win32'
+      })
+    ).toBe(launcherPath)
+  })
+
   it('never returns an unqualified command name that a profile-rewritten PATH could hijack', () => {
     const { userDataPath, resourcesPath } = makeCliRoot()
     writeExecutable(join(resourcesPath, 'bin', 'orca'), '#!/bin/sh\nexit 0\n')
@@ -340,16 +382,12 @@ describe('Codex shell launch preflight command', () => {
 
   it.each([
     { label: 'the launcher file is missing', create: null },
-    { label: 'the launcher is not executable', create: 0o644 },
     { label: 'the launcher path is a directory', create: 'directory' as const }
   ])('skips the preflight when $label', (config) => {
     const { userDataPath, resourcesPath } = makeCliRoot()
     const launcherPath = join(resourcesPath, 'bin', 'orca')
     if (config.create === 'directory') {
       mkdirSync(launcherPath)
-    } else if (config.create !== null) {
-      writeFileSync(launcherPath, '#!/bin/sh\nexit 0\n')
-      chmodSync(launcherPath, config.create)
     }
 
     expect(
@@ -364,6 +402,27 @@ describe('Codex shell launch preflight command', () => {
     ).toBeNull()
   })
 
+  it.skipIf(process.platform === 'win32')(
+    'skips the preflight when the launcher is not executable',
+    () => {
+      const { userDataPath, resourcesPath } = makeCliRoot()
+      const launcherPath = join(resourcesPath, 'bin', 'orca')
+      writeFileSync(launcherPath, '#!/bin/sh\nexit 0\n')
+      chmodSync(launcherPath, 0o644)
+
+      expect(
+        resolveCodexShellLaunchPreflightCommand({
+          hooksEnabled: true,
+          isPackaged: true,
+          managedHomePath: '/managed/home',
+          userDataPath,
+          resourcesPath,
+          platform: 'darwin'
+        })
+      ).toBeNull()
+    }
+  )
+
   it('skips the preflight when the packaged build exposes no resources root', () => {
     const { userDataPath } = makeCliRoot()
 
@@ -381,7 +440,7 @@ describe('Codex shell launch preflight command', () => {
 
   it.each([
     { hooksEnabled: false, isWsl: false, managedHomePath: '/managed/home' },
-    { hooksEnabled: true, isWsl: true, managedHomePath: '/managed/home' },
+    { hooksEnabled: true, isWsl: true, managedHomePath: '/managed/home', isPackaged: false },
     { hooksEnabled: true, isWsl: false, managedHomePath: null }
   ])('does not enable an unsupported preflight for %o', (options) => {
     const { userDataPath, resourcesPath } = makeCliRoot()
@@ -390,7 +449,7 @@ describe('Codex shell launch preflight command', () => {
     expect(
       resolveCodexShellLaunchPreflightCommand({
         ...options,
-        isPackaged: true,
+        isPackaged: options.isPackaged ?? true,
         userDataPath,
         resourcesPath,
         platform: 'darwin'
diff --git a/src/main/pty/codex-shell-launch-preflight.ts b/src/main/pty/codex-shell-launch-preflight.ts
index 4b2429f50f1..537933fcdba 100644
--- a/src/main/pty/codex-shell-launch-preflight.ts
+++ b/src/main/pty/codex-shell-launch-preflight.ts
@@ -29,7 +29,7 @@ export type CodexShellLaunchPreflightCommandOptions = {
 export function resolveCodexShellLaunchPreflightCommand(
   options: CodexShellLaunchPreflightCommandOptions
 ): string | null {
-  if (!options.hooksEnabled || options.isWsl || !options.managedHomePath) {
+  if (!options.hooksEnabled || !options.managedHomePath) {
     return null
   }
   const platform = options.platform ?? process.platform
@@ -42,7 +42,14 @@ export function resolveCodexShellLaunchPreflightCommand(
         ...DEV_LAUNCHER_DIR,
         platform === 'win32' ? `${DEV_COMMAND_NAME}.cmd` : DEV_COMMAND_NAME
       )
-  return candidate && isExecutableFileOnDisk(candidate, platform) ? candidate : null
+  if (!candidate || !isExecutableFileOnDisk(candidate, platform)) {
+    return null
+  }
+  if (!options.isWsl) {
+    return candidate
+  }
+  // Why: WSLENV /p translates the verified Windows launcher with the distro's configured automount root.
+  return platform === 'win32' && options.isPackaged ? candidate : null
 }
 
 function isExecutableFileOnDisk(path: string, platform: NodeJS.Platform): boolean {
@@ -65,7 +72,7 @@ export function getPosixCodexShellLaunchPreflight(): string {
 # Why || : twice — zsh alone aborts inside the substitution, but every shell's
 # assignment adopts its exit status, so an absent codex trips set -e in bash too.
 __orca_codex_binary="$(unalias codex 2>/dev/null || :; command -v codex 2>/dev/null || :)"
-if [[ -n "\${ORCA_CODEX_LAUNCH_PREFLIGHT:-}" && -n "\${__orca_codex_binary:-}" && -x "\${__orca_codex_binary}" ]]; then
+if [[ -n "\${ORCA_CODEX_LAUNCH_PREFLIGHT:-}" && -x "\${ORCA_CODEX_LAUNCH_PREFLIGHT}" && -n "\${__orca_codex_binary:-}" && -x "\${__orca_codex_binary}" ]]; then
   # Why the function reserved word: it suppresses alias expansion of the name,
   # which otherwise rewrites this header at parse time and aborts the whole file.
   function codex {
@@ -78,7 +85,7 @@ unset __orca_codex_binary
 }
 
 export function getFishCodexShellLaunchPreflight(): string {
-  return `if test -n "$ORCA_CODEX_LAUNCH_PREFLIGHT"; and test (type -t codex 2>/dev/null) = file
+  return `if test -x "$ORCA_CODEX_LAUNCH_PREFLIGHT"; and test (type -t codex 2>/dev/null) = file
   function codex
     command "$ORCA_CODEX_LAUNCH_PREFLIGHT" agent hooks prepare-codex >/dev/null 2>&1; or true
     command codex $argv
diff --git a/src/main/pty/wsl-orca-env.test.ts b/src/main/pty/wsl-orca-env.test.ts
index 133844dec78..cc79e2bb054 100644
--- a/src/main/pty/wsl-orca-env.test.ts
+++ b/src/main/pty/wsl-orca-env.test.ts
@@ -85,7 +85,7 @@ describe('addOrcaWslInteropEnv', () => {
     expect(env.WSLENV).toContain('ORCA_TERMINAL_HANDLE/u')
     expect(env.WSLENV).toContain('ORCA_USER_DATA_PATH/p')
     expect(env.WSLENV).toContain('ORCA_CLI_COMMAND/u')
-    expect(env.WSLENV).not.toContain('ORCA_CODEX_LAUNCH_PREFLIGHT')
+    expect(env.WSLENV).toContain('ORCA_CODEX_LAUNCH_PREFLIGHT/p')
     expect(env.WSLENV).toContain('ORCA_OMP_STATUS_EXTENSION/p')
     expect(env.WSLENV).not.toContain('ORCA_PRIME_AGENT_STATUS_EXTENSION')
     expect(env.WSLENV).toContain('ORCA_PANE_KEY/u')
diff --git a/src/main/pty/wsl-orca-env.ts b/src/main/pty/wsl-orca-env.ts
index 0fe855ba3b0..262df20b3b2 100644
--- a/src/main/pty/wsl-orca-env.ts
+++ b/src/main/pty/wsl-orca-env.ts
@@ -77,6 +77,7 @@ export function addOrcaWslInteropEnv(env: Record<string, string>): void {
     // and it cannot derive the hash segment from ORCA_USER_DATA_PATH alone.
     'ORCA_SHELL_READY_ROOT/p',
     'ORCA_CLI_COMMAND/u',
+    'ORCA_CODEX_LAUNCH_PREFLIGHT/p',
     'ORCA_PANE_KEY/u',
     'ORCA_TAB_ID/u',
     'ORCA_WORKTREE_ID/u',
diff --git a/src/main/runtime/rpc/methods/agent-hooks.test.ts b/src/main/runtime/rpc/methods/agent-hooks.test.ts
new file mode 100644
index 00000000000..5781045a1f7
--- /dev/null
+++ b/src/main/runtime/rpc/methods/agent-hooks.test.ts
@@ -0,0 +1,145 @@
+import { beforeEach, describe, expect, it, vi } from 'vitest'
+import type { OrcaRuntimeService } from '../../orca-runtime'
+import { isStreamingMethod, type RpcContext } from '../core'
+
+const { installForRuntimeHomeSerializedMock, realpathMock } = vi.hoisted(() => ({
+  installForRuntimeHomeSerializedMock: vi.fn(),
+  realpathMock: vi.fn()
+}))
+
+vi.mock('../../../codex/hook-service', () => ({
+  codexHookService: { installForRuntimeHomeSerialized: installForRuntimeHomeSerializedMock }
+}))
+vi.mock('node:fs/promises', () => ({ realpath: realpathMock }))
+
+import { AGENT_HOOK_METHODS } from './agent-hooks'
+import {
+  _internals as managedWslHomeRegistryInternals,
+  recordManagedWslCodexHome
+} from '../../../codex/managed-wsl-codex-home-registry'
+
+const LINUX_HOME = '/home/jin/.local/share/orca/codex-runtime-home/home'
+const RUNTIME_HOME =
+  '\\\\wsl.localhost\\Ubuntu-24.04\\home\\jin\\.local\\share\\orca\\codex-runtime-home\\home'
+
+function prepareMethod() {
+  const method = AGENT_HOOK_METHODS.find(
+    (candidate) => candidate.name === 'agentHooks.prepareCodexForWslPane'
+  )
+  if (!method || isStreamingMethod(method)) {
+    throw new Error('Missing agentHooks.prepareCodexForWslPane request method')
+  }
+  return method
+}
+
+function runtimeWithSettings(enabled = true, disabledTuiAgents: string[] = []): OrcaRuntimeService {
+  return {
+    getClientSettings: vi.fn(() => ({
+      agentStatusHooksEnabled: enabled,
+      disabledTuiAgents
+    }))
+  } as unknown as OrcaRuntimeService
+}
+
+describe('agent hook RPC methods', () => {
+  beforeEach(() => {
+    installForRuntimeHomeSerializedMock.mockReset()
+    realpathMock.mockReset()
+    realpathMock.mockImplementation(async (path: string) => path)
+    managedWslHomeRegistryInternals.clearRecordedManagedWslCodexHomes()
+    recordManagedWslCodexHome('Ubuntu-24.04', RUNTIME_HOME)
+  })
+
+  it('installs the pane-selected WSL home once and returns its status', async () => {
+    const status = { agent: 'codex', state: 'installed' }
+    installForRuntimeHomeSerializedMock.mockResolvedValue(status)
+    const method = prepareMethod()
+    const params = method.params!.parse({
+      codexHome: LINUX_HOME,
+      orcaCodexHome: LINUX_HOME,
+      wslDistro: 'Ubuntu-24.04'
+    })
+
+    await expect(method.handler(params, { runtime: runtimeWithSettings() })).resolves.toBe(status)
+    expect(installForRuntimeHomeSerializedMock).toHaveBeenCalledExactlyOnceWith(RUNTIME_HOME, {
+      runtime: 'wsl',
+      wslDistro: 'Ubuntu-24.04'
+    })
+  })
+
+  it.each([
+    [false, []],
+    [true, ['codex']]
+  ])('does not install when hooks are disabled (%s, %j)', async (enabled, disabledTuiAgents) => {
+    const method = prepareMethod()
+    const params = method.params!.parse({
+      codexHome: '/home/jin/.local/share/orca/codex-runtime-home/home',
+      orcaCodexHome: '/home/jin/.local/share/orca/codex-runtime-home/home',
+      wslDistro: 'Ubuntu-24.04'
+    })
+
+    await expect(
+      method.handler(params, { runtime: runtimeWithSettings(enabled, disabledTuiAgents) })
+    ).resolves.toBeNull()
+    expect(installForRuntimeHomeSerializedMock).not.toHaveBeenCalled()
+  })
+
+  it.each(['runtime', 'mobile'] as const)('rejects non-local %s callers', async (clientKind) => {
+    const method = prepareMethod()
+    const params = method.params!.parse({
+      codexHome: '/home/jin/.local/share/orca/codex-runtime-home/home',
+      orcaCodexHome: '/home/jin/.local/share/orca/codex-runtime-home/home',
+      wslDistro: 'Ubuntu-24.04'
+    })
+
+    await expect(
+      method.handler(params, {
+        runtime: runtimeWithSettings(),
+        clientKind
+      } as RpcContext)
+    ).rejects.toThrow(/only available to the local Orca CLI/)
+    expect(installForRuntimeHomeSerializedMock).not.toHaveBeenCalled()
+  })
+
+  it('propagates an attempted installer failure', async () => {
+    installForRuntimeHomeSerializedMock.mockRejectedValue(new Error('install failed'))
+    const method = prepareMethod()
+    const params = method.params!.parse({
+      codexHome: '/home/jin/.local/share/orca/codex-runtime-home/home',
+      orcaCodexHome: '/home/jin/.local/share/orca/codex-runtime-home/home',
+      wslDistro: 'Ubuntu-24.04'
+    })
+
+    await expect(method.handler(params, { runtime: runtimeWithSettings() })).rejects.toThrow(
+      'install failed'
+    )
+    expect(installForRuntimeHomeSerializedMock).toHaveBeenCalledOnce()
+  })
+
+  it('rejects a managed-looking home that resolves through a symlink', async () => {
+    realpathMock.mockResolvedValue(
+      '\\\\wsl.localhost\\Ubuntu-24.04\\home\\jin\\outside-managed-home'
+    )
+    const method = prepareMethod()
+    const params = method.params!.parse({
+      codexHome: LINUX_HOME,
+      orcaCodexHome: LINUX_HOME,
+      wslDistro: 'Ubuntu-24.04'
+    })
+
+    await expect(method.handler(params, { runtime: runtimeWithSettings() })).resolves.toBeNull()
+    expect(installForRuntimeHomeSerializedMock).not.toHaveBeenCalled()
+  })
+
+  it('rejects malformed distro names at the RPC schema', () => {
+    const method = prepareMethod()
+
+    expect(() =>
+      method.params!.parse({
+        codexHome: '/home/jin/.local/share/orca/codex-runtime-home/home',
+        orcaCodexHome: '/home/jin/.local/share/orca/codex-runtime-home/home',
+        wslDistro: 'Ubuntu\\..\\host'
+      })
+    ).toThrow()
+  })
+})
diff --git a/src/main/runtime/rpc/methods/agent-hooks.ts b/src/main/runtime/rpc/methods/agent-hooks.ts
new file mode 100644
index 00000000000..b26b117bd32
--- /dev/null
+++ b/src/main/runtime/rpc/methods/agent-hooks.ts
@@ -0,0 +1,38 @@
+import { z } from 'zod'
+import { prepareManagedWslCodexHomeBeforeShellLaunch } from '../../../codex/managed-wsl-home-shell-preflight'
+import { defineMethod, type RpcMethod } from '../core'
+
+const PrepareCodexForWslPaneParams = z
+  .object({
+    codexHome: z.string().max(4_096),
+    orcaCodexHome: z.string().max(4_096),
+    wslDistro: z
+      .string()
+      .trim()
+      .min(1)
+      .max(255)
+      .regex(/^[^\\/\r\n]+$/)
+  })
+  .strict()
+
+export const AGENT_HOOK_METHODS: readonly RpcMethod[] = [
+  defineMethod({
+    name: 'agentHooks.prepareCodexForWslPane',
+    params: PrepareCodexForWslPaneParams,
+    handler: async (params, { runtime, clientKind }) => {
+      if (clientKind !== undefined) {
+        throw new Error('Codex hook preparation is only available to the local Orca CLI.')
+      }
+      const settings = runtime.getClientSettings()
+      return await prepareManagedWslCodexHomeBeforeShellLaunch({
+        env: {
+          CODEX_HOME: params.codexHome,
+          ORCA_CODEX_HOME: params.orcaCodexHome,
+          WSL_DISTRO_NAME: params.wslDistro
+        },
+        hooksEnabled:
+          settings.agentStatusHooksEnabled && !settings.disabledTuiAgents.includes('codex')
+      })
+    }
+  })
+]
diff --git a/src/main/runtime/rpc/methods/index.ts b/src/main/runtime/rpc/methods/index.ts
index 94b5f236562..d919a62c289 100644
--- a/src/main/runtime/rpc/methods/index.ts
+++ b/src/main/runtime/rpc/methods/index.ts
@@ -43,12 +43,14 @@ import { PAIRING_METHODS } from './pairing'
 import { UPDATER_METHODS } from './updater'
 import { AGENT_SESSION_METHODS } from './agent-session'
 import { ARTIFACT_METHODS } from './artifacts'
+import { AGENT_HOOK_METHODS } from './agent-hooks'
 
 // Why: a flat manifest keeps registration order explicit and provides one
 // grep-point for "what methods does the RPC server expose?" — useful when
 // auditing the security boundary or wiring new CLI commands.
 export const ALL_RPC_METHODS: readonly RpcAnyMethod[] = [
   ...STATUS_METHODS,
+  ...AGENT_HOOK_METHODS,
   ...AI_VAULT_METHODS,
   ...ARTIFACT_METHODS,
   ...AUTOMATION_METHODS,