docs: change get_images docstring to sphinx style

Author: jja6312

src/openstack_mcp_server/prompts/__init__.py

@@ -1,14 +0,0 @@
-from fastmcp import FastMCP
-
-
-def register_prompt(mcp: FastMCP):
-    """
-    Register OpenStack MCP prompts.
-    """
-
-    # Add image tools prompt
-    mcp.add_prompt(
-        "image_tools",
-        "ImageTools Usage Guide - Only use parameters that the user explicitly requests",
-        "prompts/image_tools_prompt.md",
-    )

src/openstack_mcp_server/prompts/image_tools_prompt.md

@@ -28,16 +28,14 @@ def get_images(
         """
         Get the list of OpenStack images with optional filtering.
 
-        Prompt:
-            See prompts/image_tools_prompt.md for detailed usage examples.
-
-        Args:
-            name: Filter by image name
-            status: Filter by status (e.g., 'active', 'queued', 'killed')
-            visibility: Filter by visibility (e.g., 'public', 'private', 'shared')
-
-        Returns:
-            A list of Image objects.
+        The filtering behavior is as follows:
+        - By default, all available images are returned without any filtering applied. 
+        - Filters are only applied when specific values are provided by the user.
+
+        :param name: Filter by image name
+        :param status: Filter by status
+        :param visibility: Filter by visibility
+        :return: A list of Image objects.
         """
         conn = get_openstack_conn()