Start of a PR reviewer workflow

Author: derekmisler

.github/workflows/pr-review-command.yml

@@ -0,0 +1,115 @@
+name: PR Review on Command
+
+on:
+  issue_comment:
+    types: [created]
+  workflow_dispatch:
+    inputs:
+      pr_number:
+        description: "PR number to review"
+        required: true
+        type: number
+
+permissions:
+  contents: read
+  pull-requests: write
+  issues: write
+
+jobs:
+  check-trigger:
+    if: |
+      (github.event_name == 'issue_comment' && github.event.issue.pull_request && contains(github.event.comment.body, '/review')) ||
+      github.event_name == 'workflow_dispatch'
+    runs-on: ubuntu-latest
+    outputs:
+      pr_number: ${{ steps.get-pr.outputs.pr_number }}
+    steps:
+      - name: Get PR number
+        id: get-pr
+        run: |
+          if [ "${{ github.event_name }}" == "issue_comment" ]; then
+            echo "pr_number=${{ github.event.issue.number }}" >> $GITHUB_OUTPUT
+          else
+            echo "pr_number=${{ inputs.pr_number }}" >> $GITHUB_OUTPUT
+          fi
+
+      - name: Add eyes reaction
+        if: github.event_name == 'issue_comment'
+        uses: actions/github-script@v7
+        with:
+          script: |
+            await github.rest.reactions.createForIssueComment({
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+              comment_id: context.payload.comment.id,
+              content: 'eyes'
+            });
+
+  run-review:
+    needs: [check-trigger]
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout PR
+        uses: actions/checkout@v4
+
+      - name: Get PR details
+        id: pr-details
+        uses: actions/github-script@v7
+        with:
+          script: |
+            const prNumber = ${{ needs.check-trigger.outputs.pr_number }};
+            const { data: pr } = await github.rest.pulls.get({
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+              pull_number: prNumber
+            });
+            const { data: files } = await github.rest.pulls.listFiles({
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+              pull_number: prNumber
+            });
+            core.setOutput('pr_title', pr.title);
+            core.setOutput('pr_author', pr.user.login);
+            core.setOutput('files_changed', files.length);
+            core.setOutput('head_ref', pr.head.ref);
+
+      - name: Checkout PR branch
+        run: |
+          git fetch origin ${{ steps.pr-details.outputs.head_ref }}
+          git checkout ${{ steps.pr-details.outputs.head_ref }}
+
+      - name: Run PR Reviewer Agent
+        uses: docker/cagent-action@1f7ec0445e138a587639fc9c046076e22d184349
+        with:
+          agent: agentcatalog/github-action-pr-reviewer:2.0.0
+          mcp-gateway: true
+          anthropic-api-key: ${{ secrets.ANTHROPIC_API_KEY }}
+          github-token: ${{ secrets.GITHUB_TOKEN }}
+        env:
+          ANTHROPIC_API_KEY: ${{ secrets.ANTHROPIC_API_KEY }}
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        continue-on-error: true
+
+      - name: Add success reaction
+        if: success() && github.event_name == 'issue_comment'
+        uses: actions/github-script@v7
+        with:
+          script: |
+            await github.rest.reactions.createForIssueComment({
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+              comment_id: context.payload.comment.id,
+              content: 'rocket'
+            });
+
+      - name: Add failure reaction
+        if: failure() && github.event_name == 'issue_comment'
+        uses: actions/github-script@v7
+        with:
+          script: |
+            await github.rest.reactions.createForIssueComment({
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+              comment_id: context.payload.comment.id,
+              content: 'confused'
+            });