diff --git a/README.md b/README.md
index 46d017a..4147360 100644
--- a/README.md
+++ b/README.md
@@ -65,7 +65,15 @@ No extra Python packages are required.
 
 ## GitHub Sync
 
-Use these commands on another computer for first-time setup:
+### First-time setup on another computer
+
+Install these tools first:
+
+- [Git for Windows](https://git-scm.com/download/win)
+- Python 3.10 or newer
+- Node.js, optional but recommended for frontend syntax checks
+
+Clone the project into ComfyUI's `custom_nodes` folder:
 
 ```powershell
 cd path\to\ComfyUI\custom_nodes
@@ -73,6 +81,35 @@ git clone https://github.com/mclaughlinrosemary927/ComfyUI_FindModels.git
 cd ComfyUI_FindModels
 ```
 
+Run the local development check:
+
+```powershell
+.\scripts\setup-dev.bat
+```
+
+Restart ComfyUI after the clone. If the browser already has ComfyUI open, press
+`Ctrl+F5` once so the frontend extension is loaded fresh.
+
+### Daily workflow
+
+Before editing on a computer, pull the latest code:
+
+```powershell
+.\scripts\pull.bat
+```
+
+After editing, run the environment check:
+
+```powershell
+.\scripts\setup-dev.bat
+```
+
+Then upload your changes:
+
+```powershell
+.\scripts\push.bat
+```
+
 Daily pull from GitHub:
 
 ```powershell
@@ -94,6 +131,8 @@ powershell -ExecutionPolicy Bypass -File .\scripts\push.ps1 "Fix model detection
 The upload script runs the Python tests, checks `web/find_models.js`, stages all tracked
 and untracked project files, commits, and pushes. The pull script refuses to pull when
 there are local uncommitted changes, so work on another computer is not overwritten.
+The setup script checks Git, Python, optional Node.js, Python tests, frontend syntax,
+Python syntax, and whitespace.
 
 Local runtime files such as `models/`, `external_model_folder.json`, `quark_auth.json`,
 `__pycache__/`, and `.pytest_cache/` are intentionally ignored and are not uploaded.
diff --git a/scripts/setup-dev.bat b/scripts/setup-dev.bat
new file mode 100644
index 0000000..dd09728
--- /dev/null
+++ b/scripts/setup-dev.bat
@@ -0,0 +1,12 @@
+@echo off
+setlocal
+powershell -NoProfile -ExecutionPolicy Bypass -File "%~dp0setup-dev.ps1" %*
+if errorlevel 1 (
+  echo.
+  echo Development environment check failed. Check the messages above.
+  pause
+  exit /b 1
+)
+echo.
+echo Development environment check complete.
+pause
diff --git a/scripts/setup-dev.ps1 b/scripts/setup-dev.ps1
new file mode 100644
index 0000000..9cf7ae2
--- /dev/null
+++ b/scripts/setup-dev.ps1
@@ -0,0 +1,72 @@
+$ErrorActionPreference = "Stop"
+$repo = Resolve-Path (Join-Path $PSScriptRoot "..")
+Set-Location $repo
+
+function Test-Command {
+    param([string]$Name)
+    $command = Get-Command $Name -ErrorAction SilentlyContinue
+    if ($command) {
+        Write-Host "[OK] $Name -> $($command.Source)"
+        return $true
+    }
+    Write-Host "[MISSING] $Name is not available in PATH" -ForegroundColor Yellow
+    return $false
+}
+
+Write-Host "ComfyUI_FindModels development environment check"
+Write-Host "Repository: $repo"
+Write-Host ""
+
+$ok = $true
+$ok = (Test-Command "git") -and $ok
+$ok = (Test-Command "python") -and $ok
+$nodeOk = Test-Command "node"
+
+Write-Host ""
+Write-Host "Git status:"
+git status --short --branch
+
+Write-Host ""
+Write-Host "Python version:"
+python --version
+
+if ($nodeOk) {
+    Write-Host ""
+    Write-Host "Node version:"
+    node --version
+} else {
+    Write-Host ""
+    Write-Host "Node.js is optional for running the ComfyUI plugin, but required for 'node --check web\\find_models.js'." -ForegroundColor Yellow
+}
+
+Write-Host ""
+Write-Host "Running Python tests..."
+python -m unittest discover -s tests
+
+if ($nodeOk) {
+    Write-Host ""
+    Write-Host "Checking frontend syntax..."
+    node --check web\find_models.js
+}
+
+Write-Host ""
+Write-Host "Checking Python syntax..."
+python -B -c "import ast, pathlib; [ast.parse(p.read_text(encoding='utf-8')) for p in map(pathlib.Path, ['model_finder.py','find_models.py','node_installer.py','__init__.py'])]; print('python syntax ok')"
+
+Write-Host ""
+Write-Host "Checking whitespace..."
+git diff --check
+
+if (-not $ok) {
+    Write-Host ""
+    Write-Host "Required tools are missing. Install Git and Python, then run this script again." -ForegroundColor Red
+    exit 1
+}
+
+Write-Host ""
+Write-Host "Development environment check complete."
+Write-Host "Next steps:"
+Write-Host "  1. Restart ComfyUI after changing Python or frontend files."
+Write-Host "  2. Press Ctrl+F5 in the browser after changing web/find_models.js."
+Write-Host "  3. Use scripts\\pull.bat before editing on another computer."
+Write-Host "  4. Use scripts\\push.bat after testing your changes."