Universal-Commerce-Protocol · wry-ry · Mar 22, 2026 · Mar 17, 2026 · Mar 18, 2026 · Mar 18, 2026
@@ -0,0 +1,40 @@
+name: 'Setup Docs Build Environment'
+description: 'Installs dependencies needed to build the UCP documentation'
+runs:
+  using: "composite"
+  steps:
+    - name: Install system dependencies
+      shell: bash
+      run: sudo apt-get update && sudo apt-get install -y libcairo2-dev libfreetype6-dev libffi-dev libjpeg-dev libpng-dev libz-dev
+
+    - name: Install uv
+      uses: astral-sh/setup-uv@v7
+      with:
+        enable-cache: true
+
+    - name: Install documentation dependencies
+      shell: bash
+      run: uv sync
+
+    - name: Get latest ucp-schema version
+      id: get-version
+      shell: bash
+      run: |
+        VERSION=$(curl -s https://crates.io/api/v1/crates/ucp-schema | jq -r '.crate.max_version')
+        echo "version=$VERSION" >> $GITHUB_OUTPUT
+
+    - name: Cache ucp-schema binary
+      id: cache-ucp-schema
+      uses: actions/cache@v4
+      with:
+        path: ~/.cargo/bin/ucp-schema
+        key: ${{ runner.os }}-ucp-schema-${{ steps.get-version.outputs.version }}
+
+    - name: Install ucp-schema
+      if: steps.cache-ucp-schema.outputs.cache-hit != 'true'
+      shell: bash
+      run: cargo install ucp-schema
+
+    - name: Add cargo to PATH
+      shell: bash
+      run: echo "$HOME/.cargo/bin" >> $GITHUB_PATH
@@ -35,35 +35,15 @@ on:
       - "source/**"
 
 jobs:
-  build_and_deploy:
+  lint:
     runs-on: ubuntu-latest
-    permissions:
-      contents: write
-      actions: read
-      pages: read
-
     steps:
       - name: Checkout Code
         uses: actions/checkout@v5
         with:
-          token: ${{ secrets.GITHUB_TOKEN }}
           fetch-depth: 0
 
-      - name: Configure Git Credentials
-        run: |
-          git config --global user.name github-actions[bot]
-          git config --global user.email 41898282+github-actions[bot]@users.noreply.github.com
-
-      - name: Install system dependencies
-        run: |
-          sudo apt-get update
-          sudo apt-get install -y libcairo2-dev libfreetype6-dev libffi-dev libjpeg-dev libpng-dev libz-dev
-
-      - name: Install the latest version of uv
-        uses: astral-sh/setup-uv@v7
-
-      - name: Install documentation dependencies
-        run: uv sync
+      - uses: ./.github/actions/setup-build-env
 
       - name: Lint YAML files
         run: uv run yamllint -c .github/linters/.yamllint.yml .
@@ -74,75 +54,126 @@ jobs:
         with:
           files: source/**
 
-      - name: Install ucp-schema for runtime resolution
-        run: |
-          cargo install ucp-schema
-          echo "$HOME/.cargo/bin" >> $GITHUB_PATH
-
       - name: Lint source schemas
-        if: steps.source_files_changed.outputs.any_changed == 'true'
+        if: steps.source_files_changed.outputs.any_changed == 'true' || github.event_name == 'workflow_dispatch'
         run: ucp-schema lint source/
 
-      - name: Create folders for JSON publishing
+  build_and_verify_main:
+    needs: lint
+    runs-on: ubuntu-latest
+    if: github.ref == 'refs/heads/main' || github.event.pull_request.base.ref == 'main'
+    steps:
+      - name: Checkout Code
+        uses: actions/checkout@v5
+        with:
+          fetch-depth: 0
+
+      - name: Configure Git Credentials
         run: |
-          mkdir -p site/schemas
-          mkdir -p site/services
-          mkdir -p site/handlers
-          mkdir -p site/discovery
+          git config --global user.name github-actions[bot]
+          git config --global user.email 41898282+github-actions[bot]@users.noreply.github.com
+
+      - uses: ./.github/actions/setup-build-env
 
       - name: Configure Site URL
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         run: |
-          # Fetch the Pages URL. Fails safely if not enabled.
           PAGES_URL=$(gh api "repos/${{ github.repository }}/pages" --jq '.html_url' 2>/dev/null || true)
-
-          if [ -z "$PAGES_URL" ]; then
-            echo "Pages URL not detected. Falling back to default structure."
-            PAGES_URL="https://${{ github.repository_owner }}.github.io/${{ github.event.repository.name }}"
-          fi
-
-          # Ensure trailing slash
-          if [[ "$PAGES_URL" != */ ]]; then
-            PAGES_URL="${PAGES_URL}/"
-          fi
-
-          echo "Set SITE_URL to $PAGES_URL"
+          if [ -z "$PAGES_URL" ]; then PAGES_URL="https://${{ github.repository_owner }}.github.io/${{ github.event.repository.name }}"; fi
+          if [[ "$PAGES_URL" != */ ]]; then PAGES_URL="${PAGES_URL}/"; fi
           echo "SITE_URL=$PAGES_URL" >> $GITHUB_ENV
+          echo "SPEC_URL=${PAGES_URL}latest/specification/overview/" >> $GITHUB_ENV
 
       - name: Build and Verify Documentation Site (Main/PR)
-        if: github.ref == 'refs/heads/main' || github.event.pull_request.base.ref == 'main'
         run: |
-          # Create a full local preview (including mike logic) for validation
           bash scripts/build_local.sh --main-only
           uv run python scripts/check_links.py local_preview
 
+  build_and_verify_release:
+    needs: lint
+    runs-on: ubuntu-latest
+    if: startsWith(github.ref, 'refs/heads/release/') || startsWith(github.event.pull_request.base.ref, 'release/')
+    steps:
+      - name: Checkout Code
+        uses: actions/checkout@v5
+        with:
+          fetch-depth: 0
+
+      - name: Configure Git Credentials
+        run: |
+          git config --global user.name github-actions[bot]
+          git config --global user.email 41898282+github-actions[bot]@users.noreply.github.com
+
+      - uses: ./.github/actions/setup-build-env
+
+      - name: Configure Site URL
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        run: |
+          PAGES_URL=$(gh api "repos/${{ github.repository }}/pages" --jq '.html_url' 2>/dev/null || true)
+          if [ -z "$PAGES_URL" ]; then PAGES_URL="https://${{ github.repository_owner }}.github.io/${{ github.event.repository.name }}"; fi
+          if [[ "$PAGES_URL" != */ ]]; then PAGES_URL="${PAGES_URL}/"; fi
+          echo "SITE_URL=$PAGES_URL" >> $GITHUB_ENV
+          echo "SPEC_URL=${PAGES_URL}latest/specification/overview/" >> $GITHUB_ENV
+
       - name: Build and Verify Specification Docs (Release Branches)
-        if: startsWith(github.ref, 'refs/heads/release/') || startsWith(github.event.pull_request.base.ref, 'release/')
         run: |
           export DOCS_MODE=spec
           uv run mkdocs build --strict
           uv run python scripts/check_links.py site
 
+  deploy_main:
+    needs: build_and_verify_main
+    runs-on: ubuntu-latest
+    if: contains(fromJson('["push", "workflow_dispatch"]'), github.event_name) && github.ref == 'refs/heads/main'
+    permissions:
+      contents: write
+      pages: read
+    steps:
+      - name: Checkout Code
+        uses: actions/checkout@v5
+        with:
+          token: ${{ secrets.GITHUB_TOKEN }}
+          fetch-depth: 0
+
+      - name: Configure Git Credentials
+        run: |
+          git config --global user.name github-actions[bot]
+          git config --global user.email 41898282+github-actions[bot]@users.noreply.github.com
+
+      - uses: ./.github/actions/setup-build-env
+
+      - name: Configure Site URL
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        run: |
+          PAGES_URL=$(gh api "repos/${{ github.repository }}/pages" --jq '.html_url' 2>/dev/null || true)
+          if [ -z "$PAGES_URL" ]; then PAGES_URL="https://${{ github.repository_owner }}.github.io/${{ github.event.repository.name }}"; fi
+          if [[ "$PAGES_URL" != */ ]]; then PAGES_URL="${PAGES_URL}/"; fi
+          echo "SITE_URL=$PAGES_URL" >> $GITHUB_ENV
+          echo "SPEC_URL=${PAGES_URL}latest/specification/overview/" >> $GITHUB_ENV
+
       - name: Deploy development version from main branch
-        if: github.event_name == 'push' && github.ref == 'refs/heads/main'
         run: |
-          # 1. Deploy Specification Site using mike (DOCS_MODE=spec)
           export DOCS_MODE=spec
           uv run mike deploy --push draft
 
-          # 2. Build Root Site (DOCS_MODE=root)
           export DOCS_MODE=root
           uv run mkdocs build --strict
 
-          # 3. Deploy Root Site to gh-pages root
-          # Fetch and checkout gh-pages
-          git fetch origin gh-pages
-          git checkout gh-pages
+          # Checkout gh-pages into a separate directory to avoid overwriting the workspace
+          # and causing GitHub Actions post-run hooks to fail (as they need .github/actions)
+          git clone --branch gh-pages "https://x-access-token:${{ secrets.GITHUB_TOKEN }}@github.com/${{ github.repository }}.git" gh-pages-branch
+          cd gh-pages-branch
+
+          # Remove existing root files except versions and git metadata
+          git ls-files | grep -vE "^(\.nojekyll|draft|latest|[0-9]{4}-[0-9]{2}-[0-9]{2}|versions\.json|\.git)" | xargs -r rm -f
+          find . -maxdepth 1 -type d -empty -not -path "./.git*" -delete
 
           # Copy build artifacts to root
-          cp -r site/* .
-          rm -rf site
+          cp -r ../site/* .
+          rm -rf ../site
 
           # Add redirects for all specification files
           rm -rf specification
@@ -153,43 +184,72 @@ jobs:
           git commit -m "Deploy root site from main" --allow-empty
           git push origin gh-pages
 
+  deploy_release:
+    needs: build_and_verify_release
+    runs-on: ubuntu-latest
+    if: contains(fromJson('["push", "workflow_dispatch"]'), github.event_name) && startsWith(github.ref, 'refs/heads/release/')
+    permissions:
+      contents: write
+      pages: read
+    steps:
+      - name: Checkout Code
+        uses: actions/checkout@v5
+        with:
+          token: ${{ secrets.GITHUB_TOKEN }}
+          fetch-depth: 0
+
+      - name: Configure Git Credentials
+        run: |
+          git config --global user.name github-actions[bot]
+          git config --global user.email 41898282+github-actions[bot]@users.noreply.github.com
+
+      - uses: ./.github/actions/setup-build-env
+
+      - name: Configure Site URL
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        run: |
+          PAGES_URL=$(gh api "repos/${{ github.repository }}/pages" --jq '.html_url' 2>/dev/null || true)
+          if [ -z "$PAGES_URL" ]; then PAGES_URL="https://${{ github.repository_owner }}.github.io/${{ github.event.repository.name }}"; fi
+          if [[ "$PAGES_URL" != */ ]]; then PAGES_URL="${PAGES_URL}/"; fi
+          echo "SITE_URL=$PAGES_URL" >> $GITHUB_ENV
+          echo "SPEC_URL=${PAGES_URL}latest/specification/overview/" >> $GITHUB_ENV
+
       - name: Deploy release version
-        if: startsWith(github.ref, 'refs/heads/release/')
         run: |
           export DOCS_MODE=spec
-          # Extract the date (e.g., release/2026-01-11 -> 2026-01-11)
           VERSION_NAME=${GITHUB_REF#refs/heads/release/}
-
-          # Fetch all release branches to determine if this is the latest
           git fetch origin "+refs/heads/release/*:refs/remotes/origin/release/*"
-
-          # Find the highest version number among all release branches
           LATEST_VERSION=$(git branch -r --list "origin/release/*" | sed 's|origin/release/||' | sort -V | tail -n 1 | tr -d ' ')
 
-          echo "Deploying version: $VERSION_NAME"
-          echo "Latest detected version: $LATEST_VERSION"
-
           if [ "$VERSION_NAME" = "$LATEST_VERSION" ]; then
-            echo "This is the latest version. Updating 'latest' alias."
             uv run mike deploy --push --update-aliases "$VERSION_NAME" latest
           else
-            echo "This is NOT the latest version. Deploying without updating 'latest' alias."
             uv run mike deploy --push "$VERSION_NAME"
           fi
 
+  create_release:
+    needs: deploy_release
+    runs-on: ubuntu-latest
+    if: contains(fromJson('["push", "workflow_dispatch"]'), github.event_name) && startsWith(github.ref, 'refs/heads/release/')
+    permissions:
+      contents: write
+    steps:
+      - name: Checkout Code
+        uses: actions/checkout@v5
+        with:
+          token: ${{ secrets.GITHUB_TOKEN }}
+          fetch-depth: 0
+
       - name: Create GitHub Release and Tag
-        if: startsWith(github.ref, 'refs/heads/release/')
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         run: |
           VERSION_DATE=${GITHUB_REF#refs/heads/release/}
           TAG_NAME="v$VERSION_DATE"
 
-          # Create Release (This implicitly creates the git tag)
-          # The '|| true' ensures the workflow doesn't fail if you
-          # push updates to this branch later (re-running the build).
           gh release create "$TAG_NAME" \
             --title "Release $TAG_NAME" \
             --generate-notes \
             --target "$GITHUB_REF_NAME" \
-            || echo "Release $TAG_NAME already exists, skipping creation."
+            || echo "Release $TAG_NAME already exists, skipping creation."
@@ -822,3 +822,16 @@ p.hero-description {
   letter-spacing: -0.5px;
   font-family: "Google Sans", sans-serif;
 }
+
+/* Prevent the site title and version selector from being hidden on scroll */
+[class~="md-header__title"] [class~="md-header__topic"]:first-child {
+  opacity: 1 !important;
+  transform: none !important;
+  z-index: 1 !important;
+  pointer-events: auto !important;
+}
+
+/* Hide the page title that replaces the site title on scroll */
+[class~="md-header__title"] [class~="md-header__topic"]:nth-child(2) {
+  display: none !important;
+}
@@ -15,7 +15,7 @@
 
 
 site_name: Universal Commerce Protocol (UCP)
-site_url: https://ucp.dev/  # Required for the llmstxt plugin to work.
+site_url: !ENV [SITE_URL, "https://ucp.dev/"]  # Required for the llmstxt plugin to work.
 site_description: >
   The Universal Commerce Protocol (UCP) is a solution for enabling gen AI agents
   to make payments on behalf of users, safely, securely, and in a decentralized
@@ -30,7 +30,7 @@ nav:
   - Overview:
       - Home: index.md
       - Core Concepts: documentation/core-concepts.md
-      - Specification: /latest/specification/overview/
+      - Specification: !ENV [SPEC_URL, "https://ucp.dev/latest/specification/overview/"]
       - UCP and AP2: documentation/ucp-and-ap2.md
       - Roadmap: documentation/roadmap.md
       - Schema Authoring: documentation/schema-authoring.md
@@ -142,8 +142,8 @@ theme:
     # - navigation.expand
     - navigation.footer
     # - navigation.indexes
-    - navigation.instant
-    - navigation.instant.progress
+    # - navigation.instant
+    # - navigation.instant.progress
     # - navigation.path
     - navigation.top
     - navigation.tracking