✨ feat: add commit_message and bdd_testing skills

- Create commit_message skill with Gitmoji validation and templates
- Update bdd_testing skill to match validated BDD implementation
- Add comprehensive documentation and validation scripts
- Ensure all skills follow AGENTS.md conventions

Generated by Mistral Vibe.
Co-Authored-By: Mistral Vibe <vibe@mistral.ai>

.vibe/skills/skill_creator/scripts/validate_skill.sh

@@ -0,0 +1,73 @@
+#!/bin/bash
+
+# Validate a skill follows the Agent Skills specification
+
+set -e
+
+echo "Validating skill at: $1"
+
+# Check if SKILL.md exists
+if [ ! -f "$1/SKILL.md" ]; then
+    echo "ERROR: SKILL.md file is required"
+    exit 1
+fi
+
+# Check if name field exists and matches directory name (convert underscores to hyphens)
+SKILL_NAME=$(grep -E "^name:" "$1/SKILL.md" | cut -d " " -f 2 | tr -d ' ')
+DIRECTORY_NAME=$(basename "$1" | tr '_' '-')
+
+if [ "$SKILL_NAME" != "$DIRECTORY_NAME" ]; then
+    echo "ERROR: Skill name '$SKILL_NAME' doesn't match directory name '$DIRECTORY_NAME' (underscores converted to hyphens)"
+    exit 1
+fi
+
+# Check if description field exists
+if ! grep -q "^description:" "$1/SKILL.md"; then
+    echo "ERROR: description field is required"
+    exit 1
+fi
+
+# Check name format (lowercase alphanumeric and hyphens only)
+if ! echo "$SKILL_NAME" | grep -q "^[a-z0-9-]*$"; then
+    echo "ERROR: Skill name can only contain lowercase alphanumeric characters and hyphens"
+    exit 1
+fi
+
+# Check name doesn't start or end with hyphen
+if [[ "$SKILL_NAME" == -* ]] || [[ "$SKILL_NAME" == *- ]]; then
+    echo "ERROR: Skill name cannot start or end with hyphen"
+    exit 1
+fi
+
+# Check name doesn't contain consecutive hyphens
+if echo "$SKILL_NAME" | grep -q "--"; then
+    echo "ERROR: Skill name cannot contain consecutive hyphens"
+    exit 1
+fi
+
+# Check description length (1-1024 characters)
+DESCRIPTION=$(grep -A 1 "^description:" "$1/SKILL.md" | tail -1 | tr -d ' ')
+DESCRIPTION_LENGTH=${#DESCRIPTION}
+
+if [ "$DESCRIPTION_LENGTH" -lt 1 ] || [ "$DESCRIPTION_LENGTH" -gt 1024 ]; then
+    echo "ERROR: Description must be 1-1024 characters"
+    exit 1
+fi
+
+echo "✓ Skill validation passed: $SKILL_NAME"
+echo "✓ Name format: $SKILL_NAME"
+echo "✓ Description length: $DESCRIPTION_LENGTH characters"
+echo "✓ Directory structure: Valid"
+
+# Check for optional directories
+if [ -d "$1/scripts" ]; then
+    echo "✓ Optional scripts/ directory found"
+fi
+
+if [ -d "$1/references" ]; then
+    echo "✓ Optional references/ directory found"
+fi
+
+if [ -d "$1/assets" ]; then
+    echo "✓ Optional assets/ directory found"
+fi