github-actions[bot] commented on code in PR #40561:
URL: https://github.com/apache/beam/pull/40561#discussion_r4264152430


##########
.github/workflows/gemini_code_review.yml:
##########
@@ -0,0 +1,212 @@
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+name: Gemini Enterprise Code Review
+
+on:
+  pull_request:
+    paths:
+      - '.github/workflows/gemini_code_review.yml'

Review Comment:
   **🟡 Medium**: The `pull_request` trigger (lines 19-21) was re-added for 
testing on this PR. Before merging, remove the `pull_request` block so PRs from 
forks modifying this workflow do not fail on `pulls.createReview` due to 
read-only `GITHUB_TOKEN` permissions on `pull_request` events, and branch PRs 
do not trigger duplicate runs alongside `pull_request_target`.



##########
.github/workflows/gemini_code_review.yml:
##########
@@ -0,0 +1,212 @@
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+name: Gemini Enterprise Code Review
+
+on:
+  pull_request:
+    paths:
+      - '.github/workflows/gemini_code_review.yml'
+  pull_request_target:
+    types: [opened, reopened, ready_for_review]
+  workflow_dispatch:
+    inputs:
+      pr_number:
+        description: 'Pull Request number to review'
+        required: true
+        type: number
+
+permissions: read-all
+
+concurrency:
+  group: gemini-code-review-${{ github.event.pull_request.number || 
inputs.pr_number }}
+  cancel-in-progress: true
+
+jobs:
+  gemini-review:
+    name: Gemini Enterprise PR Review
+    if: github.repository == 'apache/beam'

Review Comment:
   **🟡 Medium**: Restore the `!github.event.pull_request.draft` guard before 
merging so `opened` and `reopened` events on draft PRs do not trigger premature 
reviews before `ready_for_review`.
   
   ```suggestion
       if: github.repository == 'apache/beam' && 
!github.event.pull_request.draft
   ```



##########
.github/workflows/gemini_code_review.yml:
##########
@@ -0,0 +1,212 @@
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+name: Gemini Enterprise Code Review
+
+on:
+  pull_request:
+    paths:
+      - '.github/workflows/gemini_code_review.yml'
+  pull_request_target:
+    types: [opened, reopened, ready_for_review]
+  workflow_dispatch:
+    inputs:
+      pr_number:
+        description: 'Pull Request number to review'
+        required: true
+        type: number
+
+permissions: read-all
+
+concurrency:
+  group: gemini-code-review-${{ github.event.pull_request.number || 
inputs.pr_number }}
+  cancel-in-progress: true
+
+jobs:
+  gemini-review:
+    name: Gemini Enterprise PR Review
+    if: github.repository == 'apache/beam'
+    runs-on: [self-hosted, ubuntu-24.04, main]
+    timeout-minutes: 15
+    permissions:
+      contents: read
+      pull-requests: write
+
+    steps:
+      - name: Setup Node.js
+        uses: actions/setup-node@v7
+        with:
+          node-version: '20'
+
+      - name: Run Gemini Enterprise Code Review Agent
+        id: gemini_review
+        shell: bash
+        env:
+          GEMINI_CLI_TRUST_WORKSPACE: 'true'
+          GEMINI_FORCE_FILE_STORAGE: 'true'
+          GOOGLE_GENAI_USE_VERTEXAI: 'true'
+          GOOGLE_CLOUD_PROJECT: ${{ secrets.GCP_PROJECT_ID || 
'apache-beam-testing' }}
+          GOOGLE_CLOUD_LOCATION: 'global'
+          GEMINI_MODEL: ${{ vars.GEMINI_MODEL || 'gemini-4-argon' }}
+          PR_NUMBER: ${{ github.event.pull_request.number || inputs.pr_number 
}}
+          REPOSITORY: ${{ github.repository }}
+        run: |
+          set -euo pipefail
+
+          PR_URL="https://github.com/${REPOSITORY}/pull/${PR_NUMBER}";
+
+          mkdir -p .gemini
+          cat << 'EOF' > .gemini/settings.json
+          {
+            "model": {
+              "maxSessionTurns": 25
+            },
+            "experimental": {
+              "directWebFetch": true
+            },
+            "tools": {
+              "core": [
+                "web_fetch"
+              ]
+            }
+          }
+          EOF
+
+          cat << 'EOF' > prompt_template.txt
+          You are an autonomous Apache Beam code review agent running on the 
Gemini Enterprise Agent Platform.
+          Review Pull Request: __PR_URL__
+
+          Respond with ONLY a single valid JSON object matching this exact 
schema (no markdown prose outside the JSON):
+          {
+            "summary": "## 📋 Review Summary\n\n2-3 sentence high-level 
assessment.\n\n## 🔍 General Feedback\n- Key architectural or cross-file 
observations.",
+            "comments": [
+              {
+                "path": "relative/path/to/file.ext",
+                "line": 123,
+                "side": "RIGHT",
+                "severity": "🟠 High",
+                "body": "Clear explanation of why this is an issue and how to 
fix it.",
+                "suggestion": "optional exact replacement line(s) without 
backticks, or null"

Review Comment:
   **🟡 Medium**: Because `inlineComments` (lines 172-177) only sends `line` and 
`side` without `start_line`, GitHub treats any `suggestion` fence as a 
replacement for that single line (`line`) only. If the agent outputs a 
replacement intended for a multi-line block, applying the suggestion in GitHub 
will leave the remaining original lines intact. Either instruct the model that 
`suggestion` may only be used when replacing the single target `line`, or add 
optional `start_line` support to the schema and review payload.
   
   ```suggestion
                   "suggestion": "optional exact replacement for the single 
target line without backticks, or null"
   ```



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