add project/git-workflow-agent tutorial branch

.claudecode.json

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+{
+  "prompt": "When making commits, always follow the Conventional Commits specification (e.g., fix: or feat:). Keep summaries under 50 characters."
+}

calc.py

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+def divide_numbers(a, b):
+    # Intentional Bug: This will crash if b is 0 instead of returning a safe fallback
+    return a / b
+
+if __name__ == "__main__":
+    print("Result:", divide_numbers(10, 2))
+    print("Testing edge case with zero:")
+    print("Result:", divide_numbers(10, 0))

git_agent_workflow.sh

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+#!/bin/bash
+
+echo "🚀 Starting automated Git workflow agent..."
+
+# 1. Create a new descriptive feature branch safely
+git checkout -b feature/fix-calculator-edge-case
+
+# 2. Call Claude Code to inspect our branch changes and generate a PR description
+echo "🤖 Calling Claude to draft our PR description..."
+claude -p "Look at the git diff between this branch and main. Generate a clear, markdown-formatted Pull Request summary explaining what bug was fixed and why." > PR_DESCRIPTION.md
+
+echo "✅ Workflow complete! PR template generated in PR_DESCRIPTION.md"