Feat: integrate code review extension in PR workflow instead of using customized review prompt

.github/workflows/gemini-review.yml

@@ -51,6 +51,7 @@ jobs:
           PULL_REQUEST_NUMBER: '${{ github.event.pull_request.number || github.event.issue.number }}'
           REPOSITORY: '${{ github.repository }}'
           ADDITIONAL_CONTEXT: '${{ inputs.additional_context }}'
+          GEMINI_API_KEY: '${{ secrets.GEMINI_API_KEY }}'
         with:
           gcp_location: '${{ vars.GOOGLE_CLOUD_LOCATION }}'
           gcp_project_id: '${{ vars.GOOGLE_CLOUD_PROJECT }}'
@@ -106,4 +107,8 @@ jobs:
                 ]
               }
             }
-          prompt: '/gemini-review'
+          extensions: |
+            [
+              "https://github.com/gemini-cli-extensions/code-review"
+            ]
+          prompt: '/code-review pr-review'

evals/pr-review.eval.ts

@@ -1,6 +1,6 @@
 import { describe, expect, it } from 'vitest';
 import { TestRig } from './test-rig';
-import { mkdirSync, copyFileSync, readFileSync } from 'node:fs';
+import { mkdirSync, readFileSync, writeFileSync } from 'node:fs';
 import { join } from 'node:path';
 import { execSync } from 'node:child_process';
 
@@ -13,6 +13,8 @@ interface ReviewCase {
 
 const datasetPath = join(__dirname, 'data/pr-review.json');
 const dataset: ReviewCase[] = JSON.parse(readFileSync(datasetPath, 'utf-8'));
+const REVIEW_TOML_URL =
+  'https://raw.githubusercontent.com/gemini-cli-extensions/code-review/main/commands/code-review.toml';
 
 describe('PR Review Workflow', () => {
   for (const item of dataset) {
@@ -22,14 +24,17 @@ describe('PR Review Workflow', () => {
         const rig = new TestRig(`review-${item.id}`);
         try {
           rig.setupMockMcp();
-          mkdirSync(join(rig.testDir, '.gemini/commands'), { recursive: true });
-          copyFileSync(
-            '.github/commands/gemini-review.toml',
-            join(rig.testDir, '.gemini/commands/gemini-review.toml'),
-          );
+          const commandDir = join(rig.testDir, '.gemini/commands');
+          mkdirSync(commandDir, { recursive: true });
+
+          const response = await fetch(REVIEW_TOML_URL);
+          if (!response.ok)
+            throw new Error(`Failed to fetch TOML: ${response.statusText}`);
+          const tomlContent = await response.text();
+          writeFileSync(join(commandDir, 'code-review.toml'), tomlContent);
 
           const stdout = await rig.run(
-            ['--prompt', '/gemini-review', '--yolo'],
+            ['--prompt', '"/code-review pr-review"', '--yolo'],
             item.inputs,
           );
 

examples/workflows/pr-review/README.md

@@ -34,7 +34,7 @@ This document explains how to use the Gemini CLI on GitHub to automatically revi
 
 ## Overview
 
-The PR Review workflow uses Google's Gemini AI to provide comprehensive code reviews for pull requests. It analyzes code quality, security, performance, and maintainability while providing constructive feedback in a structured format.
+The PR Review workflow uses Google's Gemini AI and [code review extension](https://github.com/gemini-cli-extensions/code-review) to provide comprehensive code reviews for pull requests. It analyzes code quality, security, performance, and maintainability while providing constructive feedback in a structured format.
 
 ## Features
 
@@ -178,16 +178,15 @@ After posting all inline comments, the action submits the review with a final su
 The action provides specific, actionable feedback directly on the relevant lines of code in the pull request. Each comment includes:
 
 - **Priority**: An emoji indicating the severity of the feedback.
-  - 🔴 **Critical**: Must be fixed before merging (e.g., security vulnerabilities, breaking changes).
-  - 🟠 **High**: Should be addressed (e.g., performance issues, design flaws).
-  - 🟡 **Medium**: Recommended improvements (e.g., code quality, style).
-  - 🟢 **Low**: Nice-to-have suggestions (e.g., documentation, minor refactoring).
-  - 🔵 **Unclear**: Priority is not determined.
+  - **Critical**: Must be fixed before merging (e.g., security vulnerabilities, breaking changes).
+  - **High**: Should be addressed (e.g., performance issues, design flaws).
+  - **Medium**: Recommended improvements (e.g., code quality, style).
+  - **Low**: Nice-to-have suggestions (e.g., documentation, minor refactoring).
 - **Suggestion**: A code block with a suggested change, where applicable.
 
 **Example Inline Comment:**
 
-> 🟢 Use camelCase for function names
+> Use camelCase for function names
 >
 > ```suggestion
 > myFunction
@@ -216,15 +215,15 @@ You can customize the workflow by modifying:
 
 ### Review Prompt Customization
 
-The review prompt is defined in the `gemini-review.toml` file. The action automatically copies this file from `.github/commands/` to `.gemini/commands/` during execution.
+The review prompt utilizes [code review extension](https://github.com/gemini-cli-extensions/code-review) and its defined prompt.
 
 **To customize the review prompt:**
 
 1. Copy the TOML file to your repository:
 
    ```bash
    mkdir -p .gemini/commands
-   curl -o .gemini/commands/gemini-review.toml https://raw.githubusercontent.com/google-github-actions/run-gemini-cli/main/examples/workflows/pr-review/gemini-review.toml
+   curl -o .gemini/commands/gemini-review.toml https://raw.githubusercontent.com/gemini-cli-extensions/code-review/main/commands/code-review.toml
    ```
 
 2. Edit `.gemini/commands/gemini-review.toml` to customize:
@@ -233,7 +232,14 @@ The review prompt is defined in the `gemini-review.toml` file. The action automa
    - Include project-specific guidelines
    - Adjust review depth and focus areas
 
-3. Commit the file to your repository:
+3. Edit `.github/workflows/gemini-review.yml` to use the customized prompt:
+
+   ```yml
+   - prompt: '/code-review pr-review'
+   + prompt: '/gemini-review pr-review'
+   ```
+
+4. Commit the file to your repository:
    ```bash
    git add .gemini/commands/gemini-review.toml
    git commit -m "feat: customize PR review prompt"

examples/workflows/pr-review/gemini-review.yml

@@ -51,6 +51,7 @@ jobs:
           PULL_REQUEST_NUMBER: '${{ github.event.pull_request.number || github.event.issue.number }}'
           REPOSITORY: '${{ github.repository }}'
           ADDITIONAL_CONTEXT: '${{ inputs.additional_context }}'
+          GEMINI_API_KEY: '${{ secrets.GEMINI_API_KEY }}'
         with:
           gcp_location: '${{ vars.GOOGLE_CLOUD_LOCATION }}'
           gcp_project_id: '${{ vars.GOOGLE_CLOUD_PROJECT }}'
@@ -106,4 +107,8 @@ jobs:
                 ]
               }
             }
-          prompt: '/gemini-review'
+          extensions: |
+            [
+              "https://github.com/gemini-cli-extensions/code-review"
+            ]
+          prompt: '/code-review pr-review'