Refactor Claude Code Action to auto-generate prompts from GitHub context when no input is provided, improving usability and functionality. Update workflow to remove redundant prompt generation step, streamlining the process.

Author: MervinPraison

.github/actions/claude-code-action/action.yml

@@ -63,21 +63,49 @@ runs:
       shell: bash
       id: prepare_prompt
       run: |
-        # Check if either prompt or prompt_file is provided
+        # If neither prompt nor prompt_file is provided, auto-generate from GitHub context
         if [ -z "${{ inputs.prompt }}" ] && [ -z "${{ inputs.prompt_file }}" ]; then
-          echo "::error::Neither 'prompt' nor 'prompt_file' was provided. At least one is required."
-          exit 1
-        fi
-
-        # Determine which prompt source to use
-        if [ ! -z "${{ inputs.prompt_file }}" ]; then
+          echo "Auto-generating prompt from GitHub context..."
+          mkdir -p /tmp/claude-action
+          
+          # Extract the user's request from the GitHub event (mimicking official behavior)
+          if [[ "${{ github.event_name }}" == "issue_comment" ]]; then
+            PROMPT_TEXT="${{ github.event.comment.body }}"
+            CONTEXT="Issue Comment on: ${{ github.event.issue.title }}"
+          elif [[ "${{ github.event_name }}" == "pull_request_review_comment" ]]; then
+            PROMPT_TEXT="${{ github.event.comment.body }}"
+            CONTEXT="PR Comment on: ${{ github.event.pull_request.title }}"
+          elif [[ "${{ github.event_name }}" == "pull_request_review" ]]; then
+            PROMPT_TEXT="${{ github.event.review.body }}"
+            CONTEXT="PR Review on: ${{ github.event.pull_request.title }}"
+          elif [[ "${{ github.event_name }}" == "issues" ]]; then
+            PROMPT_TEXT="${{ github.event.issue.body }}"
+            CONTEXT="Issue: ${{ github.event.issue.title }}"
+          else
+            PROMPT_TEXT="Help with this repository"
+            CONTEXT="Repository assistance requested"
+          fi
+          
+          # Create GitHub context prompt (similar to official action)
+          cat > /tmp/claude-action/github-context-prompt.txt << EOF
+        You are Claude Code, an AI assistant helping with GitHub workflows and code.
+        
+        Repository: ${{ github.repository }}
+        Context: $CONTEXT
+        
+        User Request:
+        $PROMPT_TEXT
+        
+        Please analyze the request and provide helpful assistance. You have access to repository tools and can help with code analysis, implementations, and GitHub workflows.
+        EOF
+          
+          PROMPT_PATH="/tmp/claude-action/github-context-prompt.txt"
+        elif [ ! -z "${{ inputs.prompt_file }}" ]; then
           # Check if the prompt file exists
           if [ ! -f "${{ inputs.prompt_file }}" ]; then
             echo "::error::Prompt file '${{ inputs.prompt_file }}' does not exist."
             exit 1
           fi
-
-          # Use the provided prompt file
           PROMPT_PATH="${{ inputs.prompt_file }}"
         else
           mkdir -p /tmp/claude-action

.github/workflows/claude.yml

@@ -29,49 +29,11 @@ jobs:
         with:
           fetch-depth: 1
 
-      - name: Generate Prompt from GitHub Context
-        id: generate-prompt
-        run: |
-          mkdir -p /tmp/claude-prompts
-          
-          # Extract the user's request from the GitHub event
-          if [[ "${{ github.event_name }}" == "issue_comment" ]]; then
-            PROMPT_TEXT="${{ github.event.comment.body }}"
-            CONTEXT="Issue Comment: ${{ github.event.issue.title }}"
-          elif [[ "${{ github.event_name }}" == "pull_request_review_comment" ]]; then
-            PROMPT_TEXT="${{ github.event.comment.body }}"
-            CONTEXT="PR Comment: ${{ github.event.pull_request.title }}"
-          elif [[ "${{ github.event_name }}" == "pull_request_review" ]]; then
-            PROMPT_TEXT="${{ github.event.review.body }}"
-            CONTEXT="PR Review: ${{ github.event.pull_request.title }}"
-          elif [[ "${{ github.event_name }}" == "issues" ]]; then
-            PROMPT_TEXT="${{ github.event.issue.body }}"
-            CONTEXT="Issue: ${{ github.event.issue.title }}"
-          fi
-          
-          # Create the prompt file
-          cat > /tmp/claude-prompts/github-context-prompt.txt << EOF
-          You are Claude Code, an AI assistant that helps with code and GitHub workflows.
-          
-          Context: $CONTEXT
-          Repository: ${{ github.repository }}
-          
-          User Request:
-          $PROMPT_TEXT
-          
-          Please analyze the request and provide helpful assistance. You have access to the repository context and can help with code analysis, suggestions, and implementations.
-          EOF
-          
-          echo "prompt_file=/tmp/claude-prompts/github-context-prompt.txt" >> $GITHUB_OUTPUT
-        shell: bash
-
       - name: Run Claude Code
         id: claude
         uses: ./.github/actions/claude-code-action
         with:
-          prompt_file: ${{ steps.generate-prompt.outputs.prompt_file }}
-          install_github_mcp: "true"
-          timeout_minutes: "10"
           anthropic_api_key: ${{ secrets.ANTHROPIC_API_KEY }}
           github_token: ${{ secrets.GITHUB_TOKEN }}
+          install_github_mcp: "true"