feat: add ability to remove tools (#1322)

Co-authored-by: David Soria Parra <167242713+dsp-ant@users.noreply.github.com>
Co-authored-by: Felix Weinberger <3823880+felixweinberger@users.noreply.github.com>
Co-authored-by: Max Isbey <224885523+maxisbey@users.noreply.github.com>
Co-authored-by: Claude <noreply@anthropic.com>

src/mcp/server/fastmcp/server.py

@@ -391,6 +391,17 @@ class FastMCP(Generic[LifespanResultT]):
             structured_output=structured_output,
         )
 
+    def remove_tool(self, name: str) -> None:
+        """Remove a tool from the server by name.
+
+        Args:
+            name: The name of the tool to remove
+
+        Raises:
+            ToolError: If the tool does not exist
+        """
+        self._tool_manager.remove_tool(name)
+
     def tool(
         self,
         name: str | None = None,

src/mcp/server/fastmcp/tools/tool_manager.py

@@ -70,6 +70,12 @@ class ToolManager:
         self._tools[tool.name] = tool
         return tool
 
+    def remove_tool(self, name: str) -> None:
+        """Remove a tool by name."""
+        if name not in self._tools:
+            raise ToolError(f"Unknown tool: {name}")
+        del self._tools[name]
+
     async def call_tool(
         self,
         name: str,