chore: fix pre-commit hook failures and formatting

.isort.cfg

@@ -2,4 +2,4 @@
 line_length = 120
 multi_line_output = 3
 include_trailing_comma = True
-known_third_party = graphviz,jinja2
+known_third_party = graphviz,inspection,jinja2,mcp

mcp-server/src/inspection.py

@@ -1,11 +1,13 @@
-import pkgutil
 import importlib
 import inspect
+import pkgutil
 import sys
 from collections import defaultdict
+
 import diagrams
 from diagrams import Node
 
+
 def get_all_nodes():
     """
     Dynamically inspects the diagrams package and returns a dictionary of all available Nodes.
@@ -39,8 +41,8 @@ def get_all_nodes():
 
         # Skip internal modules if any (base, etc are actually useful, but we focus on providers)
         if short_provider in ['base', 'custom']:
-             # 'custom' and 'base' might be treated differently, but for now we scan them
-             pass
+            # 'custom' and 'base' might be treated differently, but for now we scan them
+            pass
 
         try:
             provider_module = importlib.import_module(provider_name)
@@ -63,7 +65,8 @@ def get_all_nodes():
                             # or at least is defined in the diagrams package
                             if obj.__module__.startswith("diagrams"):
                                 # Ensure the object actually belongs to this service (or a submodule of it)
-                                # This prevents listing imported classes from other services (e.g. Trace in operations vs devtools)
+                                # This prevents listing imported classes from other services (e.g. Trace
+                                # in operations vs devtools)
                                 if not obj.__module__.startswith(service_name):
                                     continue
 

mcp-server/src/server.py

@@ -1,14 +1,15 @@
+import base64
+import contextlib
 import os
 import sys
 import tempfile
-import contextlib
-import base64
 from pathlib import Path
-from mcp.server.fastmcp import FastMCP
-from diagrams import Diagram, Cluster, Edge, Node
 
 # Import our helper
 from inspection import get_all_nodes
+from mcp.server.fastmcp import FastMCP
+
+from diagrams import Cluster, Diagram, Edge, Node
 
 # Initialize FastMCP
 mcp = FastMCP("diagrams-mcp")
@@ -18,6 +19,7 @@ print("Loading diagram nodes...", file=sys.stderr)
 ALL_ICONS, NODE_REGISTRY = get_all_nodes()
 print(f"Loaded {len(NODE_REGISTRY)} nodes.", file=sys.stderr)
 
+
 @mcp.tool()
 def list_icons(provider_filter: str = None, service_filter: str = None):
     """
@@ -41,10 +43,14 @@ def list_icons(provider_filter: str = None, service_filter: str = None):
         return provider_data
 
     if service_filter not in provider_data:
-         return {"error": f"Service '{service_filter}' not found in '{provider_filter}'. Available: {list(provider_data.keys())}"}
+        return {
+            "error": f"Service '{service_filter}' not found in '{provider_filter}'. Available: {
+                list(
+                    provider_data.keys())}"}
 
     return {service_filter: provider_data[service_filter]}
 
+
 @mcp.tool()
 def get_diagram_examples(diagram_type: str = "all"):
     """
@@ -92,6 +98,7 @@ with Diagram("Custom", show=False):
 
     return {diagram_type: examples.get(diagram_type, "No example found for this type.")}
 
+
 @mcp.tool()
 def generate_diagram(code: str, filename: str = None, timeout: int = 90):
     """
@@ -134,7 +141,9 @@ def generate_diagram(code: str, filename: str = None, timeout: int = 90):
             generated_files = list(Path(".").glob("*.png"))
 
             if not generated_files:
-                 return {"status": "error", "message": "No diagram image was generated. Did you call with Diagram(..., show=False)?"}
+                return {
+                    "status": "error",
+                    "message": "No diagram image was generated. Did you call with Diagram(..., show=False)?"}
 
             # Use the most recently modified file or the first one
             generated_files.sort(key=lambda f: f.stat().st_mtime, reverse=True)
@@ -172,5 +181,6 @@ def generate_diagram(code: str, filename: str = None, timeout: int = 90):
         finally:
             os.chdir(original_cwd)
 
+
 if __name__ == "__main__":
     mcp.run()