docs: provide guidance on site_url setting

great_docs/config.py

@@ -28,8 +28,9 @@
     "pypi": True,
     # GitHub integration
     "repo": None,  # GitHub repository URL override (e.g., "https://github.com/owner/repo")
-    # Site URL for subdirectory deployments (sets website.site-url in _quarto.yml)
-    # e.g., "http://myserver:3838/data-team/mypackage/"
+    # Site URL: the canonical address of the deployed documentation site.
+    # Used for skills page install commands, .well-known/ discovery, sitemaps,
+    # and subdirectory deployments. Also sets website.site-url in _quarto.yml.
     "site_url": None,
     "github_style": "widget",  # "widget" (shows stars) or "icon"
     # Source link configuration

great_docs/core.py

@@ -8707,6 +8707,13 @@ def _generate_minimal_config(
 # To show the text title alongside the logo, add: show_title: true
 {authors_section}
 {funding_yaml}
+# Site URL
+# --------
+# Canonical address of the deployed documentation site.
+# Required for subdirectory deployments, skills page install commands,
+# .well-known/ discovery, and sitemaps.
+# site_url: "https://your-org.github.io/your-package/"
+
 {site_yaml}
 # Jupyter Kernel
 # --------------
@@ -8924,10 +8931,17 @@ def _generate_config_with_reference(
                 lines.append(f"      - {name}")
             has_prev_section = True
 
-        # Add trailing sections for site settings (default templates)
+        # Add trailing sections for site URL and site settings (default templates)
         lines.extend(
             [
                 "",
+                "# Site URL",
+                "# --------",
+                "# Canonical address of the deployed documentation site.",
+                "# Required for subdirectory deployments, skills page install commands,",
+                "# .well-known/ discovery, and sitemaps.",
+                '# site_url: "https://your-org.github.io/your-package/"',
+                "",
             ]
         )
         lines.extend(site_yaml.rstrip("\n").splitlines())

user_guide/05-configuration.qmd

@@ -368,6 +368,52 @@ pypi: "https://packages.example.com/simple/my-package"
 When `pypi` is `true` (the default), the link is auto-generated as
 `https://pypi.org/project/{package_name}/`.
 
+## Site URL
+
+Set `site_url` to the canonical URL where your documentation site is (or will be) hosted.
+This value is used in several places:
+
+- **Skills page** install instructions (e.g., `npx skills add <url>`)
+- **`.well-known/` discovery** endpoints for agent skills
+- **Quarto's `website.site-url`** (canonical links, sitemaps)
+- **Subdirectory deployments** where the site lives at a path other than `/`
+  (e.g., `https://internal.example.com/docs/mypackage/`)
+
+Without it, the Skills page renders literal `<site-url>` placeholders instead of working
+install commands, and subdirectory-hosted sites will have broken asset paths.
+
+```{.yaml filename="great-docs.yml"}
+# Site URL: the canonical address of the deployed documentation site.
+# Used for skills page install commands, .well-known/ discovery, and sitemaps.
+site_url: "https://your-org.github.io/your-package/"
+```
+
+Alternatively, you can set a `Documentation` entry in `pyproject.toml`:
+
+```{.toml filename="pyproject.toml"}
+[project.urls]
+Documentation = "https://your-org.github.io/your-package/"
+```
+
+Great Docs checks these sources in order:
+
+1. `site_url` in `great-docs.yml`
+2. `Documentation` URL in `[project.urls]` (pyproject.toml)
+3. `website.site-url` already present in `_quarto.yml`
+
+If none are found, the build emits a warning:
+
+```
+⚠ No site URL found — skills page will show <site-url> placeholders.
+  Set site_url in great-docs.yml or add a Documentation URL to
+  [project.urls] in pyproject.toml.
+```
+
+::: {.callout-tip}
+Set `site_url` even before your site is deployed. Once the site goes live at that address, all
+generated install commands will already be correct.
+:::
+
 ## Sidebar Filter
 
 The API reference sidebar includes a search filter for large APIs. Configure it:
@@ -858,8 +904,9 @@ exclude:
 repo: https://github.com/your-org/your-package  # Override auto-detect
 github_style: widget
 
-# Site URL (for subdirectory deployments)
-# site_url: "https://internal.example.com/docs/mypackage/"
+# Site URL — canonical address of the deployed documentation site.
+# Used for skills page install commands, .well-known/ discovery, and sitemaps.
+# site_url: "https://your-org.github.io/your-package/"
 
 # Source Links
 source: