chore: mini-openclaw 初始版本

Next.js 前端 + FastAPI/LangChain 后端透明 agent平台
- 含 .gitignore, 敏感文件(sessions数据/.env/venv等)已排除
- 待后续添加 trajectory 自进化机制

backend/tools/skills_scanner.py

@@ -0,0 +1,48 @@
+"""Skills Scanner — Scan skills/ directory and generate SKILLS_SNAPSHOT.md."""
+
+from pathlib import Path
+
+import yaml
+
+
+def scan_skills(base_dir: Path) -> str:
+    """Scan all SKILL.md files and generate SKILLS_SNAPSHOT.md."""
+    skills_dir = base_dir / "skills"
+    snapshot_path = base_dir / "SKILLS_SNAPSHOT.md"
+
+    if not skills_dir.exists():
+        skills_dir.mkdir(parents=True)
+
+    skills = []
+    for skill_md in sorted(skills_dir.rglob("SKILL.md")):
+        try:
+            content = skill_md.read_text(encoding="utf-8")
+            # Parse YAML frontmatter
+            if content.startswith("---"):
+                parts = content.split("---", 2)
+                if len(parts) >= 3:
+                    meta = yaml.safe_load(parts[1])
+                    if meta:
+                        rel_path = f"./backend/skills/{skill_md.parent.name}/SKILL.md"
+                        skills.append({
+                            "name": meta.get("name", skill_md.parent.name),
+                            "description": meta.get("description", ""),
+                            "location": rel_path,
+                        })
+        except Exception as e:
+            print(f"⚠️ Error scanning {skill_md}: {e}")
+
+    # Build XML-style snapshot
+    lines = ["<available_skills>"]
+    for s in skills:
+        lines.append("  <skill>")
+        lines.append(f"    <name>{s['name']}</name>")
+        lines.append(f"    <description>{s['description']}</description>")
+        lines.append(f"    <location>{s['location']}</location>")
+        lines.append("  </skill>")
+    lines.append("</available_skills>")
+
+    snapshot = "\n".join(lines)
+    snapshot_path.write_text(snapshot, encoding="utf-8")
+    print(f"📋 Skills snapshot: {len(skills)} skills found")
+    return snapshot