Change AWS APM workflow to use Claude Code integration (#256)

*Description of changes:*

Change GitHub Actions to use claude code


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Author: liustve

.github/workflows/awsapm.yml

@@ -1,4 +1,24 @@
-name: Application observability for AWS
+# Example workflow for Claude Code with Amazon Bedrock
+#
+# This workflow demonstrates how to use the Application Observability for AWS action
+# with Claude Code and a custom Bedrock model.
+#
+# Key Features:
+# - Brings your own Bedrock model (pay-per-token usage on your AWS account)
+# - Uses Anthropic's official claude-code-base-action for execution
+# - Two-step process: preparation + execution
+#
+# Prerequisites:
+# 1. AWS IAM role with OIDC trust for GitHub Actions
+# 2. Bedrock InvokeModel permissions in your IAM role
+# 3. Application Signals and CloudWatch permissions
+#
+# Setup:
+# 1. Create repository secret AWSAPM_ROLE_ARN with your IAM role ARN
+# 2. (Optional) Set repository variable AWS_REGION for your preferred region
+# 3. Copy this file to .github/workflows/awsapm.yml in your repository
+
+name: Application observability for AWS (Claude + Bedrock)
 
 on:
   issue_comment:
@@ -8,29 +28,54 @@ on:
 
 jobs:
   awsapm-investigation:
+    # Only run when @awsapm is mentioned
     if: |
       (github.event_name == 'issue_comment' && contains(github.event.comment.body, '@awsapm')) ||
       (github.event_name == 'issues' && (contains(github.event.issue.body, '@awsapm') || contains(github.event.issue.title, '@awsapm')))
     runs-on: ubuntu-latest
+
     permissions:
-      contents: write
-      pull-requests: write
-      issues: write
-      id-token: write
+      contents: write        # To create branches for PRs
+      pull-requests: write   # To post comments on PRs
+      issues: write          # To post comments on issues
+      id-token: write        # Required for AWS OIDC authentication
+
     steps:
       - name: Checkout repository
         uses: actions/checkout@v4
-        with:
-          fetch-depth: 1
 
       - name: Configure AWS credentials
         uses: aws-actions/configure-aws-credentials@v4
         with:
-          role-to-assume: ${{ secrets.AWS_ROLE_TO_ASSUME }} # this should be the ARN of the IAM role created for Github Actions
+          role-to-assume: ${{ secrets.AWS_ROLE_TO_ASSUME }}
           aws-region: ${{ vars.AWS_REGION || 'us-east-1' }}
 
-      - name: Run Application observability for AWS Investigation
-        id: awsapm
-        uses: mxiamxia/aws-apm-action@main
+      # Step 1: Prepare AWS MCP configuration and investigation prompt
+      - name: Prepare Investigation Context
+        id: prepare
+        uses: mxiamxia/aws-apm-action@action-basedline
+        with:
+          bot_name: "@awsapm"
+          cli_tool: "claude_code"
+
+      # Step 2: Execute investigation with Claude Code
+      - name: Run Claude Investigation
+        id: claude
+        uses: anthropics/claude-code-base-action@beta
+        with:
+          use_bedrock: "true" 
+          model: "us.anthropic.claude-sonnet-4-5-20250929-v1:0"
+          prompt_file: ${{ steps.prepare.outputs.prompt_file }}
+          mcp_config: ${{ steps.prepare.outputs.mcp_config_file }}
+          allowed_tools: ${{ steps.prepare.outputs.allowed_tools }}
+
+      # Step 3: Post results back to GitHub issue/PR (reuse the same action)
+      - name: Post Investigation Results
+        if: always()  # Run even if Claude step fails
+        uses: mxiamxia/aws-apm-action@action-basedline
         with:
           bot_name: "@awsapm"
+          cli_tool: "claude_code"
+          comment_id: ${{ steps.prepare.outputs.awsapm_comment_id }}
+          output_file: ${{ steps.claude.outputs.execution_file }}
+          output_status: ${{ steps.claude.outputs.conclusion }}