docs: add Template-PSModule baseline to v8 skill

Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>

Author: MariusStorhaug

.github/plugin/marketplace.json

@@ -6,13 +6,13 @@
   },
   "metadata": {
     "description": "Agent plugins for the PSModule repository process.",
-    "version": "1.2.0"
+    "version": "1.3.0"
   },
   "plugins": [
     {
       "name": "psmodule",
       "description": "PSModule process guidance and reusable skills for PowerShell module repositories.",
-      "version": "1.2.0",
+      "version": "1.3.0",
       "source": ".github/plugin/psmodule"
     }
   ]

.github/plugin/psmodule/plugin.json

@@ -2,7 +2,7 @@
   "$schema": "https://agent-plugins.org/schemas/1.0.0/plugin.schema.json",
   "name": "psmodule",
   "description": "PSModule process guidance and reusable skills for PowerShell module repositories.",
-  "version": "1.2.0",
+  "version": "1.3.0",
   "author": {
     "name": "PSModule",
     "url": "https://github.com/PSModule"

.github/plugin/psmodule/skills/psmodule-v8-upgrade/SKILL.md

@@ -45,6 +45,89 @@ When a legacy MkDocs configuration exists and documentation migration is in
 scope, migrate its content and design deliberately to Zensical, then remove
 the obsolete configuration only after the generated site validates.
 
+## Template-PSModule baseline
+
+Use [`PSModule/Template-PSModule`](https://github.com/PSModule/Template-PSModule)
+and the [PSModule Repository Standard](https://github.com/PSModule/Process-PSModule/blob/main/docs/content/reference/repository-standard.md)
+as the structural baseline for module repositories. Compare the consumer with
+the template's default files before adding, removing, or relocating anything.
+The template is a starting point, not a reason to overwrite module-specific
+content.
+
+The expected repository anatomy is:
+
+```text
+<ModuleName>/
+├── .github/
+│   ├── CODEOWNERS
+│   ├── dependabot.yml
+│   ├── linters/
+│   │   ├── .markdown-lint.yml
+│   │   ├── .powershell-psscriptanalyzer.psd1
+│   │   └── .textlintrc
+│   ├── PSModule.yml
+│   ├── pull_request_template.md
+│   ├── release.yml
+│   └── workflows/
+│       └── Process-PSModule.yml
+├── docs/
+│   ├── assets/
+│   ├── content/
+│   ├── overrides/
+│   └── zensical.toml
+├── examples/
+├── icon/
+├── src/
+│   ├── classes/
+│   ├── data/
+│   ├── formats/
+│   ├── functions/
+│   │   ├── private/
+│   │   └── public/
+│   ├── init/
+│   ├── modules/
+│   ├── scripts/
+│   ├── types/
+│   └── variables/
+├── tests/
+│   ├── AfterAll.ps1
+│   ├── BeforeAll.ps1
+│   └── <ModuleName>.Tests.ps1
+├── .gitattributes
+├── .gitignore
+├── AGENTS.md
+├── CLAUDE.md
+├── CODE_OF_CONDUCT.md
+├── CONTRIBUTING.md
+├── LICENSE
+├── README.md
+├── SECURITY.md
+└── SUPPORT.md
+```
+
+Treat files and directories as follows:
+
+- Required baseline files should be present in the consumer and remain
+  repository-local; do not rely on organization-level fallback files.
+- `src/`, especially `src/functions/public/` and `src/functions/private/`,
+  along with `tests/`, `examples/`, and `icon/`, is module-owned content.
+  Preserve its intent and only migrate paths when the framework contract
+  requires it.
+- `.github/PSModule.yml`, linters, Dependabot, CODEOWNERS, release metadata,
+  pull-request templates, and repository guidance are configuration surfaces.
+  Inspect and preserve them independently of the caller workflow.
+- `tests/BeforeAll.ps1` and `tests/AfterAll.ps1` are optional root-level
+  module-local phases, not recursively discovered test files.
+- Optional source folders such as `assemblies`, `formats`, `types`, `variables`,
+  `data`, `modules`, and `scripts` are added when the module needs them; do not
+  create empty placeholders solely to match the tree.
+
+If the template revision and the consumer's existing layout disagree, record
+the difference and migrate only the requested integration surface. In
+particular, this v8 skill uses `docs/zensical.toml`, `docs/content/`,
+`docs/overrides/`, and `docs/assets/` as the documentation contract described
+below; do not create a second configuration under `.github/`.
+
 ## Caller workflow contract
 
 Replace `.github/workflows/Process-PSModule.yml` with exactly this template: