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skills/tdd-automation/templates/tdd-auto-enforcer.sh

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+#!/bin/bash
+
+###############################################################################
+# TDD Auto-Enforcer Hook
+#
+# Claude Code hook that automatically guides LLM to follow TDD workflow
+# when implementing features.
+#
+# Installed by: tdd-automation skill
+###############################################################################
+
+# Get user's prompt
+USER_PROMPT="$1"
+
+# Keywords that indicate implementation work
+IMPLEMENTATION_KEYWORDS="implement|add|create|build|feature|write.*code|develop|make.*function|make.*component"
+
+# Check if prompt is about implementing something
+if echo "$USER_PROMPT" | grep -qiE "$IMPLEMENTATION_KEYWORDS"; then
+
+  cat <<'EOF'
+
+━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
+⚠️  TDD ENFORCEMENT ACTIVE
+━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
+
+You are about to implement code. You MUST follow TDD red-green-refactor:
+
+📋 Required Workflow:
+
+  1. 🔴 RED Phase (First - DO NOT SKIP)
+     └─ Write a FAILING test before any implementation
+     └─ Run test to verify it fails: npm run test:red <test-file>
+     └─ Use TodoWrite to track this phase
+
+  2. 🟢 GREEN Phase (After RED verified)
+     └─ Write MINIMAL code to make test pass
+     └─ Run test to verify it passes: npm run test:green <test-file>
+     └─ Use TodoWrite to track this phase
+
+  3. 🔵 REFACTOR Phase (After GREEN verified)
+     └─ Improve code quality while keeping tests green
+     └─ Run all tests: npm run test:tdd
+     └─ Use TodoWrite to track this phase
+
+━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
+🚨 CRITICAL RULES
+━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
+
+  ❌ NEVER write implementation code before writing the test
+  ❌ NEVER skip RED phase verification (must see test fail)
+  ❌ NEVER skip GREEN phase verification (must see test pass)
+  ✅ ALWAYS use TodoWrite to track RED-GREEN-REFACTOR phases
+  ✅ ALWAYS run tests to verify each phase transition
+
+━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
+📝 TodoWrite Template (Use This)
+━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
+
+Create a todo list with these phases before starting:
+
+  [ ] RED: Write failing test for [feature name]
+  [ ] Verify test fails with expected error
+  [ ] GREEN: Implement minimal code to pass test
+  [ ] Verify test passes
+  [ ] REFACTOR: Improve code quality
+  [ ] Verify all tests still pass
+
+━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
+
+Start with RED phase. Create the test file first.
+
+EOF
+
+fi
+
+# Exit successfully (allow prompt to continue)
+exit 0