Phase 7-10: CustomHookLoader, MCPSkillLoader, SkillTriggerDetector, TeamMember, WebSocketManager

backend/app/agents/skills/trigger.py

@@ -0,0 +1,140 @@
+"""Skill 触发检测器 - Phase 9.5
+
+检测消息中的 Skill 触发条件。
+"""
+
+import re
+from typing import Any
+
+from app.agents.skills.metadata import SkillMetadata
+
+
+class SkillTriggerDetector:
+    """Skill 触发检测器
+
+    检测用户消息中是否触发了某个 Skill。
+    """
+
+    def __init__(self):
+        self._skills: dict[str, SkillMetadata] = {}
+
+    def register_skill(self, skill: SkillMetadata) -> None:
+        """注册 Skill
+
+        Args:
+            skill: Skill 元数据
+        """
+        self._skills[skill.name] = skill
+
+    def unregister_skill(self, name: str) -> bool:
+        """注销 Skill
+
+        Args:
+            name: Skill 名称
+
+        Returns:
+            是否成功
+        """
+        if name in self._skills:
+            del self._skills[name]
+            return True
+        return False
+
+    def detect_triggered_skills(self, message: str) -> list[str]:
+        """检测触发的 Skills
+
+        Args:
+            message: 用户消息
+
+        Returns:
+            触发的 Skill 名称列表
+        """
+        triggered = []
+        message_lower = message.lower()
+
+        for skill in self._skills.values():
+            if not skill.enabled:
+                continue
+
+            if self._matches_triggers(message, message_lower, skill):
+                triggered.append(skill.name)
+
+        return triggered
+
+    def _matches_triggers(self, message: str, message_lower: str, skill: SkillMetadata) -> bool:
+        """检查消息是否匹配 Skill 触发条件
+
+        Args:
+            message: 原始消息
+            message_lower: 小写消息
+            skill: Skill 元数据
+
+        Returns:
+            是否匹配
+        """
+        for trigger in skill.triggers:
+            trigger_lower = trigger.lower()
+
+            # 前缀匹配，如 "/code" 或 "@git"
+            if trigger_lower.startswith("/") or trigger_lower.startswith("@"):
+                if message_lower.startswith(trigger_lower):
+                    return True
+
+            # 命令格式，如 "//analyze"
+            if trigger_lower.startswith("//"):
+                pattern = trigger_lower[2:]
+                if re.search(rf"\b{re.escape(pattern)}\b", message_lower):
+                    return True
+
+            # 关键词匹配
+            if trigger_lower in message_lower:
+                return True
+
+        return False
+
+    def get_skill_prompt(self, skill_name: str) -> str | None:
+        """获取 Skill 的提示词
+
+        Args:
+            skill_name: Skill 名称
+
+        Returns:
+            Skill 内容或 None
+        """
+        skill = self._skills.get(skill_name)
+        if skill:
+            return skill.content
+        return None
+
+    def get_triggered_skill_context(self, message: str) -> str:
+        """获取触发的 Skills 上下文
+
+        Args:
+            message: 用户消息
+
+        Returns:
+            拼接的 Skill 上下文
+        """
+        triggered = self.detect_triggered_skills(message)
+        if not triggered:
+            return ""
+
+        contexts = []
+        for skill_name in triggered:
+            skill = self._skills.get(skill_name)
+            if skill:
+                contexts.append(f"# {skill.name}\n\n{skill.content}")
+
+        return "\n\n---\n\n".join(contexts)
+
+
+# 全局检测器
+_detector: SkillTriggerDetector | None = None
+
+
+def get_skill_trigger_detector() -> SkillTriggerDetector:
+    """获取全局 Skill 触发检测器"""
+    global _detector
+    if _detector is None:
+        _detector = SkillTriggerDetector()
+    return _detector