Create src/macg/tools/registry.py

src/macg/tools/registry.py

@@ -0,0 +1,28 @@
+from __future__ import annotations
+from dataclasses import dataclass
+from typing import Callable, Any
+
+@dataclass
+class Tool:
+    name: str
+    description: str
+    fn: Callable[..., Any]
+
+class ToolRegistry:
+    """
+    Think of this as a tiny MCP-style “tool server”.
+    Agents don’t call random Python—they call named tools with structured inputs.
+    """
+    def __init__(self) -> None:
+        self._tools: dict[str, Tool] = {}
+
+    def register(self, tool: Tool) -> None:
+        self._tools[tool.name] = tool
+
+    def list_tools(self) -> list[dict[str, str]]:
+        return [{"name": t.name, "description": t.description} for t in self._tools.values()]
+
+    def call(self, name: str, **kwargs) -> Any:
+        if name not in self._tools:
+            raise KeyError(f"Tool not found: {name}")
+        return self._tools[name].fn(**kwargs)