diff --git a/install.ps1 b/install.ps1
index 9eee3dc..d5d4253 100755
--- a/install.ps1
+++ b/install.ps1
@@ -41,9 +41,12 @@ $MarketplacePlugins = @("simplicio", "simplicio-loop", "simplicio-prompt", "simp
 $Target = "windows-x64"
 $Asset = "simplicio-windows-x64.exe"
 $Ed25519PublicKey = "2RoVWAoqA/DtDkT5PZdzQYIP82zFskQqJx4S1w06Wok="
-$Ed25519HelperUrl = "https://raw.githubusercontent.com/wesleysimplicio/simplicio/master/scripts/verify_ed25519.py"
-$Ed25519HelperSha256 = "f03a0719dd557ddea27dc4cf1456d6f06a47b9056505e4d4b8453090697600d0"
-$PinnedPublicKey = ([string]$Ed25519PublicKey).Trim()
+$Ed25519HelperUrl = "https://raw.githubusercontent.com/wesleysimplicio/simplicio/master/scripts/verify_ed25519.py"
+$Ed25519HelperSha256 = "f03a0719dd557ddea27dc4cf1456d6f06a47b9056505e4d4b8453090697600d0"
+$PublicRouteRef = "cc9950025baf823cdecc657228ff1e89d7701e7e"
+$PublicRouteUrl = "https://raw.githubusercontent.com/$Repo/$PublicRouteRef/codex/mcp-route.ps1"
+$PublicRouteSha256 = "fea2b06c95c9f75bf17fc46b603c8e3817aa6f680af468fa73c066210970c89c"
+$PinnedPublicKey = ([string]$Ed25519PublicKey).Trim()
 $script:Ed25519VerifyError = ""
 $SimplicioMcpUrl = if ($env:SIMPLICIO_MCP_URL) { $env:SIMPLICIO_MCP_URL } else { "http://127.0.0.1:8787/mcp" }
 
@@ -189,7 +192,7 @@ function Report-LoginState {
   Write-Warning "Google login missing or entitlement inactive; run: `"$DestPath`" auth login"
 }
 
-function Test-McpToolSurface([string]$BinaryPath) {
+function Test-McpToolSurface([string]$BinaryPath) {
   if (-not (Test-Path $BinaryPath)) { return $false }
   try {
     $env:SIMPLICIO_MCP_URL = $SimplicioMcpUrl
@@ -209,6 +212,33 @@ function Invoke-NativeHostCommand([string]$Command, [string[]]$Arguments) {
   }
 }
 
+function Sync-PublicRouteOverlay {
+  $hookDir = Join-Path $PurgeDir "hooks"
+  $hookPath = Join-Path $hookDir "mcp-route.ps1"
+  if (Test-Path $hookPath) {
+    $currentHash = (Get-FileHash -Algorithm SHA256 -Path $hookPath).Hash.ToLowerInvariant()
+    if ($currentHash -eq $PublicRouteSha256) { return $true }
+  }
+
+  New-Item -ItemType Directory -Force -Path $hookDir | Out-Null
+  $hookTemp = Join-Path $hookDir (".mcp-route.ps1.download-$PID")
+  try {
+    Invoke-WebRequest -Uri $PublicRouteUrl -OutFile $hookTemp -UseBasicParsing
+    $downloadHash = (Get-FileHash -Algorithm SHA256 -Path $hookTemp).Hash.ToLowerInvariant()
+    $downloadText = Get-Content -Raw -Path $hookTemp
+    if ($downloadHash -ne $PublicRouteSha256 -or
+        $downloadText -notmatch 'simplicio-hook-version: 3240-v11') {
+      return $false
+    }
+    Move-Item -Force -Path $hookTemp -Destination $hookPath
+    return $true
+  } catch {
+    return $false
+  } finally {
+    if (Test-Path $hookTemp) { Remove-Item -Force $hookTemp -ErrorAction SilentlyContinue }
+  }
+}
+
 function Test-AnyPath([string[]]$Paths) {
   foreach ($path in $Paths) {
     if (-not [string]::IsNullOrWhiteSpace($path) -and (Test-Path $path)) { return $true }
@@ -650,12 +680,18 @@ if (-not (Test-RuntimeReleaseContract $DestPath)) {
 Write-Host "  ✓ Runtime release contract verified"
 
 # ─── Register MCP and native hooks for every detected client ──────────────
-if (Test-McpToolSurface $DestPath) {
-  Write-Host "  ✓ MCP and hooks registered automatically for detected clients"
-} else {
-  Write-Error "Runtime installed, but automatic MCP/hooks registration failed: $DestPath mcp register --binary $DestPath --json"
-  exit 1
-}
+if (Test-McpToolSurface $DestPath) {
+  Write-Host "  ✓ MCP and hooks registered automatically for detected clients"
+} else {
+  Write-Error "Runtime installed, but automatic MCP/hooks registration failed: $DestPath mcp register --binary $DestPath --json"
+  exit 1
+}
+if (Sync-PublicRouteOverlay) {
+  Write-Host "  ✓ verified public v11 hook reconciled after Runtime registration"
+} else {
+  Write-Error "Runtime registered MCP, but the public v11 hook could not be verified and activated"
+  exit 1
+}
 
 # Host packages add skills, commands and host-specific lifecycle behavior on
 # top of Runtime MCP registration. Every detected host with a documented
diff --git a/install.sh b/install.sh
index e7e386b..793eb38 100755
--- a/install.sh
+++ b/install.sh
@@ -36,6 +36,9 @@ GITHUB="https://github.com/$REPO"
 ED25519_PUBLIC_KEY="2RoVWAoqA/DtDkT5PZdzQYIP82zFskQqJx4S1w06Wok="
 ED25519_HELPER_URL="https://raw.githubusercontent.com/$REPO/master/scripts/verify_ed25519.py"
 ED25519_HELPER_SHA256="f03a0719dd557ddea27dc4cf1456d6f06a47b9056505e4d4b8453090697600d0"
+PUBLIC_ROUTE_REF="cc9950025baf823cdecc657228ff1e89d7701e7e"
+PUBLIC_ROUTE_URL="https://raw.githubusercontent.com/$REPO/$PUBLIC_ROUTE_REF/codex/mcp-route.sh"
+PUBLIC_ROUTE_SHA256="0f3a6a32c6f224fb3aedea5336f60c5c63917b134113d4c4e524e8ae7b4a31a4"
 BIN_NAME="simplicio"
 MARKETPLACE_PLUGINS="simplicio simplicio-loop simplicio-prompt simplicio-sprint simplicio-hermes"
 
@@ -98,6 +101,33 @@ sha256_of() {
   fi
 }
 
+reconcile_public_route_overlay() {
+  hook_dir="$PURGE_DIR/hooks"
+  hook_path="$hook_dir/mcp-route.sh"
+
+  if [ -f "$hook_path" ] && [ "$(sha256_of "$hook_path")" = "$PUBLIC_ROUTE_SHA256" ]; then
+    return 0
+  fi
+
+  mkdir -p "$hook_dir" || return 1
+  hook_tmp="$hook_dir/.mcp-route.sh.download-$$"
+  if command -v curl >/dev/null 2>&1; then
+    curl -fsSL "$PUBLIC_ROUTE_URL" -o "$hook_tmp" || { rm -f "$hook_tmp"; return 1; }
+  elif command -v wget >/dev/null 2>&1; then
+    wget -q "$PUBLIC_ROUTE_URL" -O "$hook_tmp" || { rm -f "$hook_tmp"; return 1; }
+  else
+    return 1
+  fi
+
+  if [ "$(sha256_of "$hook_tmp")" != "$PUBLIC_ROUTE_SHA256" ] ||
+     ! grep -q 'simplicio-hook-version: 3240-v11' "$hook_tmp"; then
+    rm -f "$hook_tmp"
+    return 1
+  fi
+  chmod 0755 "$hook_tmp" || { rm -f "$hook_tmp"; return 1; }
+  mv -f "$hook_tmp" "$hook_path"
+}
+
 verify_ed25519_signature() {
   binary_path="$1"
   signature="$2"
@@ -740,6 +770,11 @@ if verify_mcp_tools "$DEST_PATH"; then
 else
   err "o Runtime foi instalado, mas o registro automático de MCP/hooks falhou: $DEST_PATH mcp register --binary $DEST_PATH --json"
 fi
+if reconcile_public_route_overlay; then
+  ok "hook público v11 verificado e reconciliado após o registro do Runtime"
+else
+  err "o Runtime registrou o MCP, mas o hook público v11 não pôde ser verificado e ativado"
+fi
 
 # Host packages add skills, commands and host-specific lifecycle behavior on
 # top of Runtime MCP registration. Every detected host with a documented
diff --git a/tests/test_codex_install_contract.py b/tests/test_codex_install_contract.py
index 71c3607..783a0e7 100644
--- a/tests/test_codex_install_contract.py
+++ b/tests/test_codex_install_contract.py
@@ -1,5 +1,6 @@
 """Static contract checks for the public Codex integration."""
 
+import hashlib
 import json
 import os
 from pathlib import Path
@@ -70,18 +71,29 @@ def test_installers_preserve_stable_login_state_during_upgrades():
     assert "auth login" in powershell
 
 
-def test_windows_installer_migrates_legacy_unix_hooks():
+def test_windows_installer_reconciles_the_pinned_public_hook_after_runtime_registration():
     powershell = (ROOT / "install.ps1").read_text(encoding="utf-8")
+    hook_digest = hashlib.sha256((ROOT / "codex" / "mcp-route.ps1").read_bytes()).hexdigest()
     assert "Install-CodexRouteHook" not in powershell
     assert "SIMPLICIO_CODEX_HOOK_REF" not in powershell
     assert "mcp register --binary $BinaryPath --json" in powershell
+    assert '$PublicRouteRef = "cc9950025baf823cdecc657228ff1e89d7701e7e"' in powershell
+    assert f'$PublicRouteSha256 = "{hook_digest}"' in powershell
+    assert "Sync-PublicRouteOverlay" in powershell
+    assert powershell.index("Test-McpToolSurface $DestPath") < powershell.index("if (Sync-PublicRouteOverlay)")
 
-def test_unix_installer_migrates_legacy_hook_events():
+
+def test_unix_installer_reconciles_the_pinned_public_hook_after_runtime_registration():
     shell = (ROOT / "install.sh").read_text(encoding="utf-8")
+    hook_digest = hashlib.sha256((ROOT / "codex" / "mcp-route.sh").read_bytes()).hexdigest()
     assert "CODEX_ROUTE_HOOK_URL" not in shell
     assert "install_codex_route_hook" not in shell
     assert "SIMPLICIO_CODEX_HOOK_REF" not in shell
     assert 'mcp register --binary "$binary_path" --json' in shell
+    assert 'PUBLIC_ROUTE_REF="cc9950025baf823cdecc657228ff1e89d7701e7e"' in shell
+    assert f'PUBLIC_ROUTE_SHA256="{hook_digest}"' in shell
+    assert "reconcile_public_route_overlay" in shell
+    assert shell.index('if verify_mcp_tools "$DEST_PATH"') < shell.index("if reconcile_public_route_overlay")
 
 def test_unix_installer_accepts_release_manifest_target_aliases():
     shell = (ROOT / "install.sh").read_text(encoding="utf-8")