diff --git a/packaging/openai/build_skills_package.py b/packaging/openai/build_skills_package.py
new file mode 100644
index 0000000..57a1898
--- /dev/null
+++ b/packaging/openai/build_skills_package.py
@@ -0,0 +1,74 @@
+"""Build the skills-only package the OpenAI plugin portal uploads.
+
+The portal's Skills step takes a ZIP whose root holds a portable Agent Plugins
+manifest and a skills/ directory. Everything inside comes from the canonical
+source, so this package can never describe workflows we do not ship. The build
+is byte-reproducible: entries are sorted and timestamps fixed, which lets
+scripts/validate.py fail when the committed ZIP drifts from the skills.
+
+Usage: python3 packaging/openai/build_skills_package.py [--check]
+"""
+import io, json, sys, zipfile
+from pathlib import Path
+
+ROOT = Path(__file__).resolve().parents[2]
+CANONICAL = ROOT / 'plugins/dreamlayer/skills'
+PACKAGE = Path(__file__).resolve().parent / 'dreamlayer-skills-1.0.0.zip'
+# Fixed so two builds of the same skills produce the same bytes.
+TIMESTAMP = (2026, 1, 1, 0, 0, 0)
+IGNORED = {'.DS_Store', '__pycache__'}
+MANIFEST = {
+    '$schema': 'https://agent-plugins.org/schemas/1.0.0/plugin.schema.json',
+    'name': 'dreamlayer',
+    'version': '1.0.0',
+    'description': (
+        'Generate and edit images, remove backgrounds, upscale, and build sprite-sheet '
+        'animations, with the credit cost quoted before each job.'
+    ),
+    'author': {'name': 'Mackenzie Derival', 'email': 'Mackenzie@dreamlayer.io', 'url': 'https://dreamlayer.io'},
+    'homepage': 'https://dreamlayer.io/agent',
+    'repository': 'https://github.com/TheDesignFounder/dreamlayer-agent-plugin',
+    'license': 'MIT',
+    'keywords': ['image-generation', 'image-editing', 'sprite-sheets', 'logo-concepts', 'product-images'],
+}
+
+
+def contents():
+    """The exact file map the package carries, sorted for reproducibility."""
+    files = {'plugin.json': (json.dumps(MANIFEST, indent=2) + '\n').encode()}
+    for path in sorted(CANONICAL.rglob('*')):
+        relative = path.relative_to(CANONICAL)
+        if path.is_file() and not IGNORED & set(relative.parts):
+            files[f'skills/{relative.as_posix()}'] = path.read_bytes()
+    return files
+
+
+def build():
+    buffer = io.BytesIO()
+    with zipfile.ZipFile(buffer, 'w', zipfile.ZIP_DEFLATED) as archive:
+        for name, data in sorted(contents().items()):
+            info = zipfile.ZipInfo(name, date_time=TIMESTAMP)
+            info.compress_type = zipfile.ZIP_DEFLATED
+            info.external_attr = 0o644 << 16
+            archive.writestr(info, data)
+    return buffer.getvalue()
+
+
+def main(argv):
+    built = build()
+    if '--check' in argv:
+        if not PACKAGE.exists():
+            print(f'MISSING: {PACKAGE.relative_to(ROOT)}; run python3 packaging/openai/build_skills_package.py')
+            return 1
+        if PACKAGE.read_bytes() != built:
+            print(f'DRIFT: {PACKAGE.relative_to(ROOT)} does not match the canonical skills; rebuild it')
+            return 1
+        print(f'{PACKAGE.name} matches {len(contents()) - 1} canonical files')
+        return 0
+    PACKAGE.write_bytes(built)
+    print(f'wrote {PACKAGE.relative_to(ROOT)} ({len(built)} bytes, {len(contents())} entries)')
+    return 0
+
+
+if __name__ == '__main__':
+    sys.exit(main(sys.argv[1:]))
diff --git a/packaging/openai/dreamlayer-skills-1.0.0.zip b/packaging/openai/dreamlayer-skills-1.0.0.zip
new file mode 100644
index 0000000..59716f6
Binary files /dev/null and b/packaging/openai/dreamlayer-skills-1.0.0.zip differ
diff --git a/scripts/validate.py b/scripts/validate.py
index bfc8fb2..951c769 100644
--- a/scripts/validate.py
+++ b/scripts/validate.py
@@ -28,6 +28,10 @@
 assert 'dreamlayer_cancel' not in text
 for folder in skills:
     assert folder.name in text, f'ClawHub entry point does not route to {folder.name}'
+spec=importlib.util.spec_from_file_location('skills_package',ROOT/'packaging/openai/build_skills_package.py')
+skills_package=importlib.util.module_from_spec(spec);spec.loader.exec_module(skills_package)
+assert skills_package.PACKAGE.exists(),'the OpenAI skills package is missing; run packaging/openai/build_skills_package.py'
+assert skills_package.PACKAGE.read_bytes()==skills_package.build(),'the OpenAI skills package has drifted from the canonical skills'
 for doc in ('docs/copilot-setup.md','docs/cline-setup.md'):
     body=(ROOT/doc).read_text()
     for folder in skills: