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Claude PR react on review
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‎.github/workflows/claude-pr-review.yml‎

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name: "Claude PR Review"
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on:
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workflow_call:
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inputs:
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pr_number:
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description: "Pull request number"
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required: true
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type: number
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review_id:
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description: "Pull request review ID"
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required: true
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type: number
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concurrency:
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group: claude-pr-review-${{ inputs.pr_number }}-${{ inputs.review_id }}
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cancel-in-progress: false
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permissions:
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contents: read
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jobs:
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respond:
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runs-on: ubuntu-latest
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timeout-minutes: 30
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permissions:
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contents: write
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pull-requests: write
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steps:
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- name: Harden the runner (Audit all outbound calls)
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uses: step-security/harden-runner@5ef0c079ce82195b2a36a210272d6b661572d83e # v2.14.2
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with:
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egress-policy: audit
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- name: Fetch review details
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id: review
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env:
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GH_TOKEN: ${{ secrets.PHPSTAN_BOT_PR_TOKEN }}
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run: |
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gh api "repos/${{ github.repository }}/pulls/${{ inputs.pr_number }}" > /tmp/pr.json
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gh api "repos/${{ github.repository }}/pulls/${{ inputs.pr_number }}/reviews/${{ inputs.review_id }}" > /tmp/review.json
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gh api "repos/${{ github.repository }}/pulls/${{ inputs.pr_number }}/reviews/${{ inputs.review_id }}/comments" --paginate > /tmp/review-comments.json
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echo "pr_head_ref=$(jq -r '.head.ref' /tmp/pr.json)" >> "$GITHUB_OUTPUT"
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- name: "Checkout"
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uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4.3.1
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with:
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ref: ${{ steps.review.outputs.pr_head_ref }}
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token: ${{ secrets.PHPSTAN_BOT_FORK_TOKEN }}
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fetch-depth: 0
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- name: "Install PHP"
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uses: "shivammathur/setup-php@44454db4f0199b8b9685a5d763dc37cbf79108e1" # v2
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with:
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coverage: "none"
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php-version: "8.4"
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extensions: mbstring
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ini-file: development
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ini-values: memory_limit=-1
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- name: "Install dependencies"
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uses: "ramsey/composer-install@3cf229dc2919194e9e36783941438d17239e8520" # v3
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- name: "Install test dependencies"
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run: composer install --working-dir tests
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- name: Build prompt
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id: prompt
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shell: bash
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run: |
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review_body=$(jq -r '.body // ""' /tmp/review.json)
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review_state=$(jq -r '.state' /tmp/review.json)
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reviewer=$(jq -r '.user.login' /tmp/review.json)
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num_comments=$(jq 'length' /tmp/review-comments.json)
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prompt="A reviewer ($reviewer) submitted a review on PR #${{ inputs.pr_number }} with state: $review_state."
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prompt+=$'\n'
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if [ -n "$review_body" ] && [ "$review_body" != "null" ]; then
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prompt+=$'\n'
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prompt+="## Review body"
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prompt+=$'\n\n'
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prompt+="$review_body"
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prompt+=$'\n'
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fi
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if [ "$num_comments" -gt 0 ]; then
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prompt+=$'\n'
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prompt+="## Review comments"
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prompt+=$'\n'
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for i in $(seq 0 $((num_comments - 1))); do
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file_path=$(jq -r ".[$i].path" /tmp/review-comments.json)
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line=$(jq -r ".[$i].line // .[$i].original_line // \"?\"" /tmp/review-comments.json)
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body=$(jq -r ".[$i].body" /tmp/review-comments.json)
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diff_hunk=$(jq -r ".[$i].diff_hunk // \"\"" /tmp/review-comments.json)
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prompt+=$'\n'
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prompt+="### $file_path (line $line)"
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prompt+=$'\n\n'
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if [ -n "$diff_hunk" ] && [ "$diff_hunk" != "null" ]; then
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prompt+='```diff'
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prompt+=$'\n'
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prompt+="$diff_hunk"
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prompt+=$'\n'
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prompt+='```'
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prompt+=$'\n\n'
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fi
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prompt+="$body"
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prompt+=$'\n'
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done
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fi
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prompt+=$'\n'
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prompt+="## Instructions"
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prompt+=$'\n\n'
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prompt+="Please address this review. Make the requested code changes, then run tests with \`make tests\` and static analysis with \`make phpstan\` to verify."
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prompt+=$'\n'
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prompt+="Commit each logical change separately with a descriptive message."
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{
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echo 'PROMPT<<PROMPT_DELIMITER'
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echo "$prompt"
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echo 'PROMPT_DELIMITER'
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} >> "$GITHUB_OUTPUT"
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- name: Install Claude Code
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run: npm install -g @anthropic-ai/claude-code
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- name: Run Claude
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env:
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CLAUDE_CODE_OAUTH_TOKEN: ${{ secrets.CLAUDE_CODE_OAUTH_TOKEN }}
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GH_TOKEN: ${{ secrets.PHPSTAN_BOT_FORK_TOKEN }}
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PROMPT: ${{ steps.prompt.outputs.PROMPT }}
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run: |
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claude -p "$PROMPT" \
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--output-format text \
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> /tmp/claude-response.txt
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- name: Commit and push changes
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id: push
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run: |
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if [ -z "$(git status --porcelain)" ]; then
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echo "pushed=false" >> "$GITHUB_OUTPUT"
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exit 0
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fi
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git config user.name "phpstan-bot"
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git config user.email "ondrej+phpstanbot@mirtes.cz"
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git add -A
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git commit -m "Address review feedback on PR #${{ inputs.pr_number }}"
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git push
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echo "pushed=true" >> "$GITHUB_OUTPUT"
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- name: Reply to review
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if: always() && steps.claude.outcome != 'skipped'
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env:
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GH_TOKEN: ${{ secrets.PHPSTAN_BOT_PR_TOKEN }}
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PUSHED: ${{ steps.push.outputs.pushed }}
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run: |
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body=""
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if [ -f /tmp/claude-response.txt ]; then
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body=$(cat /tmp/claude-response.txt)
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fi
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if [ "$PUSHED" = "true" ]; then
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body+=$'\n\n---\n_I pushed a commit addressing this review._'
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fi
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if [ -z "$body" ]; then
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body="I processed this review but have nothing to report."
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fi
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gh api \
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"repos/${{ github.repository }}/pulls/${{ inputs.pr_number }}/comments" \
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-f body="$body" \
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-F in_reply_to="$(jq -r '.[0].id // empty' /tmp/review-comments.json)" \
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2>/dev/null \
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|| gh pr comment "${{ inputs.pr_number }}" \
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--repo "${{ github.repository }}" \
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--body "$body"

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