Add generic memory gateway v1

memory_gateway/skills/base.py

@@ -0,0 +1,21 @@
+"""Shared skill contracts."""
+from __future__ import annotations
+
+from dataclasses import dataclass, field
+from typing import Any
+
+
+@dataclass
+class SkillResult:
+    status: str
+    output: dict[str, Any] = field(default_factory=dict)
+    writes_long_term_memory: bool = False
+
+
+class MemorySkill:
+    name = "memory_skill"
+    writes_long_term_memory = False
+
+    async def run(self, payload: dict[str, Any]) -> SkillResult:
+        raise NotImplementedError
+