Fix error handling bug in PyPI version fetch

The previous error handling was broken due to set -e causing
immediate exit, making the $? check unreachable.

Changes:
- Use set -eo pipefail for proper pipeline error handling
- Check command success with if ! command; then pattern
- Separate check for empty version string
- Both checks now properly reachable and functional

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

.github/workflows/release-mcp-server.yml

@@ -3,6 +3,12 @@ name: Release MCP Server
 on:
   push:
     tags: ["mcp-v*.*.*"]
+  workflow_dispatch:
+    inputs:
+      tag:
+        description: 'Existing tag to release (e.g., mcp-v1.0.0) - tag must exist in repo'
+        required: true
+        type: string
 
 env:
   REGISTRY: docker.io
@@ -16,9 +22,26 @@ jobs:
       id-token: write
     environment:
       name: release
+    strategy:
+      matrix:
+        variant:
+          - name: standalone
+            dockerfile: docker/Dockerfile.standalone
+            image_suffix: "-standalone"
+            tag_latest: "standalone"
+            title: "Graphiti MCP Server (Standalone)"
+            description: "Standalone Graphiti MCP server for external Neo4j or FalkorDB"
+          - name: combined
+            dockerfile: docker/Dockerfile
+            image_suffix: ""
+            tag_latest: "latest"
+            title: "FalkorDB + Graphiti MCP Server"
+            description: "Combined FalkorDB graph database with Graphiti MCP server"
     steps:
       - name: Checkout repository
         uses: actions/checkout@v4
+        with:
+          ref: ${{ inputs.tag || github.ref }}
 
       - name: Set up Python 3.11
         uses: actions/setup-python@v5
@@ -28,17 +51,26 @@ jobs:
       - name: Extract and validate version
         id: version
         run: |
-          TAG_VERSION=${GITHUB_REF#refs/tags/mcp-v}
+          # Extract tag from either push event or manual workflow_dispatch input
+          if [ "${{ github.event_name }}" == "workflow_dispatch" ]; then
+            TAG_FULL="${{ inputs.tag }}"
+            TAG_VERSION=${TAG_FULL#mcp-v}
+          else
+            TAG_VERSION=${GITHUB_REF#refs/tags/mcp-v}
+          fi
 
+          # Validate semantic versioning format
           if ! [[ $TAG_VERSION =~ ^[0-9]+\.[0-9]+\.[0-9]+$ ]]; then
-            echo "Tag must follow semantic versioning: mcp-vX.Y.Z"
+            echo "Error: Tag must follow semantic versioning: mcp-vX.Y.Z (e.g., mcp-v1.0.0)"
+            echo "Received: mcp-v$TAG_VERSION"
             exit 1
           fi
 
+          # Validate against pyproject.toml version
           PROJECT_VERSION=$(python -c "import tomllib; print(tomllib.load(open('mcp_server/pyproject.toml', 'rb'))['project']['version'])")
 
           if [ "$TAG_VERSION" != "$PROJECT_VERSION" ]; then
-            echo "Tag version mcp-v$TAG_VERSION does not match mcp_server/pyproject.toml version $PROJECT_VERSION"
+            echo "Error: Tag version mcp-v$TAG_VERSION does not match mcp_server/pyproject.toml version $PROJECT_VERSION"
             exit 1
           fi
 
@@ -57,8 +89,19 @@ jobs:
       - name: Get latest graphiti-core version from PyPI
         id: graphiti
         run: |
-          # Query PyPI for the latest graphiti-core version
-          GRAPHITI_VERSION=$(curl -s https://pypi.org/pypi/graphiti-core/json | python -c "import sys, json; print(json.load(sys.stdin)['info']['version'])")
+          # Query PyPI for the latest graphiti-core version with error handling
+          set -eo pipefail
+
+          if ! GRAPHITI_VERSION=$(curl -sf https://pypi.org/pypi/graphiti-core/json | python -c "import sys, json; data=json.load(sys.stdin); print(data['info']['version'])"); then
+            echo "Error: Failed to fetch graphiti-core version from PyPI"
+            exit 1
+          fi
+
+          if [ -z "$GRAPHITI_VERSION" ]; then
+            echo "Error: Empty version returned from PyPI"
+            exit 1
+          fi
+
           echo "graphiti_version=${GRAPHITI_VERSION}" >> $GITHUB_OUTPUT
           echo "Latest Graphiti Core version from PyPI: ${GRAPHITI_VERSION}"
 
@@ -74,21 +117,22 @@ jobs:
         with:
           images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
           tags: |
-            type=raw,value=${{ steps.version.outputs.version }}
-            type=raw,value=${{ steps.version.outputs.version }}-graphiti-${{ steps.graphiti.outputs.graphiti_version }}
-            type=raw,value=latest
+            type=raw,value=${{ steps.version.outputs.version }}${{ matrix.variant.image_suffix }}
+            type=raw,value=${{ steps.version.outputs.version }}-graphiti-${{ steps.graphiti.outputs.graphiti_version }}${{ matrix.variant.image_suffix }}
+            type=raw,value=${{ matrix.variant.tag_latest }}
           labels: |
-            org.opencontainers.image.title=Graphiti MCP Server
-            org.opencontainers.image.description=MCP server for Graphiti knowledge graph
+            org.opencontainers.image.title=${{ matrix.variant.title }}
+            org.opencontainers.image.description=${{ matrix.variant.description }}
             org.opencontainers.image.version=${{ steps.version.outputs.version }}
             org.opencontainers.image.vendor=Zep AI
             graphiti.core.version=${{ steps.graphiti.outputs.graphiti_version }}
 
-      - name: Build and push Docker image
+      - name: Build and push Docker image (${{ matrix.variant.name }})
         uses: depot/build-push-action@v1
         with:
           project: v9jv1mlpwc
           context: ./mcp_server
+          file: ./mcp_server/${{ matrix.variant.dockerfile }}
           platforms: linux/amd64,linux/arm64
           push: true
           tags: ${{ steps.docker_meta.outputs.tags }}
@@ -101,11 +145,14 @@ jobs:
 
       - name: Create release summary
         run: |
-          echo "## MCP Server Release Summary" >> $GITHUB_STEP_SUMMARY
-          echo "" >> $GITHUB_STEP_SUMMARY
-          echo "**MCP Server Version:** ${{ steps.version.outputs.version }}" >> $GITHUB_STEP_SUMMARY
-          echo "**Graphiti Core Version:** ${{ steps.graphiti.outputs.graphiti_version }}" >> $GITHUB_STEP_SUMMARY
-          echo "**Build Date:** ${{ steps.meta.outputs.build_date }}" >> $GITHUB_STEP_SUMMARY
-          echo "" >> $GITHUB_STEP_SUMMARY
-          echo "### Docker Image Tags" >> $GITHUB_STEP_SUMMARY
-          echo "${{ steps.docker_meta.outputs.tags }}" | tr ',' '\n' | sed 's/^/- /' >> $GITHUB_STEP_SUMMARY
+          {
+            echo "## MCP Server Release Summary - ${{ matrix.variant.title }}"
+            echo ""
+            echo "**MCP Server Version:** ${{ steps.version.outputs.version }}"
+            echo "**Graphiti Core Version:** ${{ steps.graphiti.outputs.graphiti_version }}"
+            echo "**Build Date:** ${{ steps.meta.outputs.build_date }}"
+            echo ""
+            echo "### Docker Image Tags"
+            echo "${{ steps.docker_meta.outputs.tags }}" | tr ',' '\n' | sed 's/^/- /'
+            echo ""
+          } >> $GITHUB_STEP_SUMMARY

mcp_server/docker/docker-compose-falkordb.yml

@@ -17,6 +17,9 @@ services:
 
   graphiti-mcp:
     image: zepai/knowledge-graph-mcp:standalone
+    # For specific versions, replace 'standalone' with a version tag:
+    #   image: zepai/knowledge-graph-mcp:1.0.0-standalone
+    # When building locally, the build section below will be used.
     build:
       context: ..
       dockerfile: docker/Dockerfile.standalone

mcp_server/docker/docker-compose-neo4j.yml

@@ -21,6 +21,9 @@ services:
 
   graphiti-mcp:
     image: zepai/knowledge-graph-mcp:standalone
+    # For specific versions, replace 'standalone' with a version tag:
+    #   image: zepai/knowledge-graph-mcp:1.0.0-standalone
+    # When building locally, the build section below will be used.
     build:
       context: ..
       dockerfile: docker/Dockerfile.standalone

mcp_server/docker/docker-compose.yml

@@ -1,12 +1,12 @@
 services:
   graphiti-falkordb:
-    image: zepai/graphiti-falkordb:latest
+    image: zepai/knowledge-graph-mcp:latest
     build:
       context: ..
       dockerfile: docker/Dockerfile
       args:
         GRAPHITI_CORE_VERSION: ${GRAPHITI_CORE_VERSION:-0.22.0}
-        MCP_SERVER_VERSION: ${MCP_SERVER_VERSION:-1.0.0rc0}
+        MCP_SERVER_VERSION: ${MCP_SERVER_VERSION:-1.0.0}
         BUILD_DATE: ${BUILD_DATE:-}
         VCS_REF: ${VCS_REF:-}
     env_file: