diff --git a/.config/dotnet-tools.json b/.config/dotnet-tools.json
new file mode 100644
index 00000000..7f363e6f
--- /dev/null
+++ b/.config/dotnet-tools.json
@@ -0,0 +1,13 @@
+{
+  "version": 1,
+  "isRoot": true,
+  "tools": {
+    "libmentor": {
+      "version": "0.1.0",
+      "commands": [
+        "libmentor"
+      ],
+      "rollForward": false
+    }
+  }
+}
diff --git a/.github/actions/libmentor/action.yml b/.github/actions/libmentor/action.yml
new file mode 100644
index 00000000..39b61a02
--- /dev/null
+++ b/.github/actions/libmentor/action.yml
@@ -0,0 +1,19 @@
+name: Generate LibMentor documentation
+description: Build validated AI documentation from a versioned source snapshot
+runs:
+  using: composite
+  steps:
+    - uses: actions/setup-dotnet@v4
+      with:
+        dotnet-version: 10.0.x
+    - name: Restore pinned CLI
+      shell: bash
+      working-directory: ${{ github.workspace }}
+      run: dotnet tool restore
+    - name: Generate and verify
+      shell: bash
+      working-directory: ${{ github.workspace }}
+      run: |
+        version="$(python3 .github/scripts/libmentor-version.py)"
+        dotnet tool run libmentor -- generate --revision "$GITHUB_SHA" --library-version "$version"
+        dotnet tool run libmentor -- generate --check --revision "$GITHUB_SHA" --library-version "$version"
diff --git a/.github/scripts/libmentor-version.py b/.github/scripts/libmentor-version.py
new file mode 100644
index 00000000..77c740cb
--- /dev/null
+++ b/.github/scripts/libmentor-version.py
@@ -0,0 +1,11 @@
+import json
+import os
+from pathlib import Path
+import xml.etree.ElementTree as ET
+
+version = ET.parse("Version.props").findtext(".//PackageVersion")
+if not version:
+    raise SystemExit("Library version could not be resolved.")
+revision = os.environ.get("GITHUB_SHA", "local")[:12]
+base = version.split("+", 1)[0]
+print(base + (".source." if "-" in base else "-source.") + revision)
diff --git a/.github/workflows/libmentor.yml b/.github/workflows/libmentor.yml
new file mode 100644
index 00000000..27036ad9
--- /dev/null
+++ b/.github/workflows/libmentor.yml
@@ -0,0 +1,19 @@
+name: LibMentor validation
+on:
+  pull_request:
+  push:
+    branches: [main]
+  workflow_dispatch:
+permissions:
+  contents: read
+jobs:
+  validate:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: ./.github/actions/libmentor
+      - uses: actions/upload-artifact@v4
+        with:
+          name: libmentor-documentation
+          path: .libmentor
+          include-hidden-files: true
diff --git a/.github/workflows/pages.yml b/.github/workflows/pages.yml
index f85af7a8..fca74aec 100644
--- a/.github/workflows/pages.yml
+++ b/.github/workflows/pages.yml
@@ -12,6 +12,13 @@ on:
     branches: [main]
     paths:
       - 'docs/**'
+      - 'Nextended.*/**'
+      - 'Version.props'
+      - 'README.md'
+      - 'libmentor.json'
+      - '.config/dotnet-tools.json'
+      - '.github/actions/libmentor/**'
+      - '.github/scripts/libmentor-version.py'
       - 'icon.png'
       - '.github/workflows/pages.yml'
   workflow_dispatch:
@@ -52,6 +59,11 @@ jobs:
         working-directory: docs
         run: npm run build
 
+      - uses: ./.github/actions/libmentor
+
+      - name: Include AI documentation
+        run: cp -R .libmentor docs/.vitepress/dist/ai
+
       - uses: actions/configure-pages@v5
 
       - uses: actions/upload-pages-artifact@v3
diff --git a/.gitignore b/.gitignore
index ac874631..9cc102c0 100644
--- a/.gitignore
+++ b/.gitignore
@@ -364,3 +364,6 @@ MigrationBackup/
 docs/node_modules/
 docs/.vitepress/dist/
 docs/.vitepress/cache/
+
+.libmentor/
+.libmentor-inputs/
diff --git a/LIBMENTOR.md b/LIBMENTOR.md
new file mode 100644
index 00000000..fcd33581
--- /dev/null
+++ b/LIBMENTOR.md
@@ -0,0 +1,11 @@
+# AI documentation
+
+LibMentor generates versioned documentation from this repository. Restore the pinned tool with `dotnet tool restore`, then run `dotnet tool run libmentor -- generate`.
+
+CI resolves the library version from its existing metadata and adds a source revision suffix. This describes the source snapshot, rather than claiming that a package with the same version has already been released. Files are generated under `.libmentor/`; repository contributor instructions are preserved.
+
+The consumer entry point after deployment is [llms.txt](https://fgilde.github.io/Nextended/ai/llms.txt). The same output is available as the `libmentor-documentation` workflow artifact. The first LibMentor 0.1.0 NuGet release must exist before tool restore can succeed.
+
+The published skill is under `ai/skills/`. Copy the complete library folder, including its references, to your client's skills directory.
+
+Generation validates local Markdown links and explicit API-symbol links. C# source declarations are parsed without a project build; see extraction evidence in `knowledge.json`. Compiled Razor APIs require compiler XML input. Markdown code fences are not compiled automatically.
diff --git a/README.md b/README.md
index e0f22692..c3d728c5 100644
--- a/README.md
+++ b/README.md
@@ -34,7 +34,7 @@
 | **Documentation portal** | [fgilde.github.io/Nextended](https://fgilde.github.io/Nextended/) | [Dokumentationsportal](docs/de/index.md) |
 | **Getting started** | [Installation](docs/guides/installation.md) | [Installation](docs/de/guides/installation.md) |
 | **Architecture** | [Overview](docs/guides/architecture.md) | [Überblick](docs/de/guides/architecture.md) |
-| **Per-package guides** | [Projects](docs/projects/README.md) | [Projekte](docs/de/projects/README.md) |
+| **Per-package guides** | [Projects](docs/projects/index.md) | [Projekte](docs/de/projects/index.md) |
 | **Examples** | [Common use cases](docs/examples/common-use-cases.md) | [Typische Anwendungsfälle](docs/de/examples/common-use-cases.md) |
 
 ## Packages
diff --git a/libmentor.json b/libmentor.json
new file mode 100644
index 00000000..deac4062
--- /dev/null
+++ b/libmentor.json
@@ -0,0 +1,33 @@
+{
+  "schemaVersion": 1,
+  "name": "Nextended",
+  "repository": "https://github.com/fgilde/Nextended",
+  "revision": "main",
+  "output": ".libmentor",
+  "exclude": [
+    "**/*.de.md",
+    "docs/de/**",
+    "**/node_modules/**"
+  ],
+  "examples": [],
+  "guidance": [
+    "This is a source snapshot. Check the installed package version and API evidence before suggesting code."
+  ],
+  "description": "Extension packages for .NET, Blazor, EF Core and Aspire.",
+  "version": "10.1.51-source",
+  "documents": [
+    "README.md",
+    "Nextended.*/README.md",
+    "docs/**/*.md"
+  ],
+  "sources": [
+    "Nextended.*/**/*.cs"
+  ],
+  "packages": [
+    "Nextended.Core",
+    "Nextended.Blazor",
+    "Nextended.EF",
+    "Nextended.Aspire"
+  ],
+  "baseUrl": "https://fgilde.github.io/Nextended/ai"
+}