diff --git a/Guide.md b/Guide.md
new file mode 100644
index 0000000..1ab1c79
--- /dev/null
+++ b/Guide.md
@@ -0,0 +1,66 @@
+# Site Guide
+
+A quick guide for creators keeping their packs and models compatible with the site.
+
+## 1. Pick the right category
+
+Every project belongs to one of: **NoN Pack**, **Model**, **Skin**, **Mod**, **Modpack**, or **Guide**. The site auto-detects compatibility from what you upload, so choosing the right category is the most important step.
+
+## 2. NoN Packs
+
+- Include a `pack.mcmeta` with an `animationframework` block:
+  ```json
+  {
+    "pack": { "pack_format": 64, "description": "..." },
+    "animationframework": { "id": "yournamespace:yourpack" }
+  }
+  ```
+- Pack content goes under `assets/<namespace>/` and `data/<namespace>/afw_animdefs/`, using the `afw_*` model keys.
+- The `id` is what the in-game auto-updater queries (`/api/packs/<namespace>/<pack_id>/latest`), so make it stable.
+
+## 3. Models
+
+- Build in **Blockbench** with **GeckoLib 5+**.
+- Upload `.bbmodel`, `.geo.json`, or `.jem` — these render in the viewer.
+- `.gltf` / `.glb` are recognized but **cannot be previewed** (the import is desktop-only).
+- Species auto-tagging only recognizes vanilla mobs.
+
+## 4. Plugins
+
+If a Model upload contains a `plugins/` folder with `.js` plugin files, the Models tab gains a **Plugins** tab that can **hotload** them. A `plugins/autoload.txt` lists the plugins loaded automatically.
+
+## 5. Skins
+
+- Use **64×32, 64×64, or 128×128** PNGs.
+- Pick **Steve (wide)** or **Alex (slim)** when rendering.
+
+## 6. Mods
+
+- Upload the `.jar` file(s), or a zip with the jars at its **root** — subfolders are ignored.
+- Loader (`fabric`, `quilt`, `neoforge`, `forge`) and the Minecraft version are auto-detected from the mod metadata.
+
+## 7. Modpacks
+
+- Upload a `.zip` (CurseForge/Modrinth folder or instance export) or a `.mrpack`.
+- Loader and Minecraft version are inferred from the embedded mods.
+
+## 8. Guides
+
+- Upload `.md` files, or a zip containing `.md` files plus their images.
+- Image and file links are **auto-rewritten** to the served files, so relative paths just work.
+- **Tip:** the site's textareas are plain inputs — write your guide in a Markdown editor (e.g. any Markdown editor with live preview, or GitHub's editor) and copy all the text with syntax onto the site.
+
+## 9. Tags
+
+- Tags use e621 style: `category:tag` (e.g. `loader:fabric`, `species:dragon`).
+- The site auto-tags loader, version, format, and species — you can add manual tags too.
+
+## 10. Upload flow
+
+My Projects → **New Project** (the draft autosaves as you type) → add the version file(s), a thumbnail, and gallery media. Each file is classified by its extension.
+
+## 11. Compatibility checklist
+
+- Zip multi-file uploads before uploading.
+- Include the Minecraft version in mod metadata.
+- Use clear, stable filenames and pack ids.
diff --git a/nonpacks/library/tests.py b/nonpacks/library/tests.py
index e39779c..514e1b9 100644
--- a/nonpacks/library/tests.py
+++ b/nonpacks/library/tests.py
@@ -135,6 +135,27 @@ class UGCProjectTests(UGCMediaTestCase, UGCGatedTestCase):
         creator_cat = TagCategory.objects.get(slug='creator')
         self.assertTrue(Tag.objects.filter(name='alice', category=creator_cat).exists())
 
+    def test_create_links_auto_tags(self):
+        """Auto tags (from version metadata) must be linked to the project on
+        creation, not just created as orphan Tag rows."""
+        self.gate()
+        self.client.login(username='Alice', password='pw')
+        uuid = self.client.get(reverse('library:project_create_new')).url.rstrip('/').split('/')[-1]
+        self._upload_temp(
+            'version', 'testmod.jar',
+            _zip_bytes({'META-INF/mods.toml': 'modLoader="javafml"\nloaderVersion="[1,)"\n[[mods]]\nmodId="testmod"\nversion="1.0.0"\ndisplayName="Test Mod"\n'}),
+            'application/java-archive',
+            draft_uuid=uuid,
+        )
+        self.client.post(reverse('library:project_create', args=[uuid]), {
+            'title': 'Auto Tag Mod', 'category': 'mod', 'version_name': '1.0.0',
+        })
+        project = Project.objects.get(slug='auto-tag-mod')
+        loader_links = TagList.objects.filter(
+            project=project, tag__category__slug='loader',
+        )
+        self.assertTrue(loader_links.exists(), 'auto loader tag should be linked to the project')
+
     def test_create_requires_version_file(self):
         self.gate()
         self.client.login(username='Alice', password='pw')
diff --git a/nonpacks/library/views.py b/nonpacks/library/views.py
index e1723d6..7115ca8 100644
--- a/nonpacks/library/views.py
+++ b/nonpacks/library/views.py
@@ -1279,6 +1279,7 @@ def project_create(request, uuid):
 
                 _apply_tags(project, data['tags'], request.user)
                 project.sync_creator_tags(actor=request.user)
+                _sync_auto_tags(project, request.user)
                 draft.delete()
                 messages.success(request, 'Project created.')
                 return redirect('library:project_detail', slug=project.slug)