added pyright and fixed type errors

pyproject.toml

@@ -17,5 +17,10 @@ email = "markus@life-electronic.nl"
 requires = [ "hatchling",]
 build-backend = "hatchling.build"
 
+[dependency-groups]
+dev = [
+    "pyright>=1.1.389",
+]
+
 [project.scripts]
 mcp-knowledge-base = "mcp_knowledge_base:main"

src/mcp_knowledge_base/server.py

@@ -8,12 +8,10 @@ import os
 from dotenv import load_dotenv
 from mcp.server import Server
 from mcp.types import (
-    Resource,
     Tool,
     TextContent,
     ImageContent,
     EmbeddedResource,
-    LoggingLevel,
 )
 
 load_dotenv()
@@ -52,16 +50,6 @@ add_tool_handler(tools.PatchContentToolHandler())
 add_tool_handler(tools.AppendContentToolHandler())
 add_tool_handler(tools.ComplexSearchToolHandler())
 
-#@app.list_resources()
-#async def list_resources() -> list[Resource]:
-#    return [
-#        Resource(
-#            uri="obisidian:///note/app.log",
-#            name="Application Logs",
-#            mimeType="text/plain"
-#        )
-#    ]
-
 @app.list_tools()
 async def list_tools() -> list[Tool]:
     """List available tools."""
@@ -69,7 +57,7 @@ async def list_tools() -> list[Tool]:
     return [th.get_tool_description() for th in tool_handlers.values()]
 
 @app.call_tool()
-async def call_tool(name: str, arguments: Any) -> Sequence[TextContent]:
+async def call_tool(name: str, arguments: Any) -> Sequence[TextContent | ImageContent | EmbeddedResource]:
     """Handle tool calls for command line run."""
     
     if not isinstance(arguments, dict):

src/mcp_knowledge_base/tools.py

@@ -4,14 +4,13 @@ from mcp.types import (
     TextContent,
     ImageContent,
     EmbeddedResource,
-    LoggingLevel,
 )
 import json
 import os
 from . import obsidian
 
-api_key = os.getenv("OBSIDIAN_API_KEY")
-if not api_key:
+api_key = os.getenv("OBSIDIAN_API_KEY", "")
+if api_key == "":
     raise ValueError("OBSIDIAN_API_KEY environment variable required")
 
 TOOL_LIST_FILES_IN_VAULT = "list_files_in_vault"
@@ -219,7 +218,7 @@ class AppendContentToolHandler(ToolHandler):
            raise RuntimeError("filepath and content arguments required")
 
        api = obsidian.Obsidian(api_key=api_key)
-       api.append_content(args["filepath"], args["content"])
+       api.append_content(args.get("filepath", ""), args["content"])
 
        return [
            TextContent(
@@ -274,11 +273,11 @@ class PatchContentToolHandler(ToolHandler):
 
        api = obsidian.Obsidian(api_key=api_key)
        api.patch_content(
-           args["filepath"],
-           args["operation"],
-           args["target_type"],
-           args["target"],
-           args["content"]
+           args.get("filepath", ""),
+           args.get("operation", ""),
+           args.get("target_type", ""),
+           args.get("target", ""),
+           args.get("content", "")
        )
 
        return [
@@ -317,7 +316,7 @@ class ComplexSearchToolHandler(ToolHandler):
            raise RuntimeError("query argument missing in arguments")
 
        api = obsidian.Obsidian(api_key=api_key)
-       results = api.search_json(args["query"])
+       results = api.search_json(args.get("query", ""))
 
        return [
            TextContent(

uv.lock

@@ -160,6 +160,11 @@ dependencies = [
     { name = "requests" },
 ]
 
+[package.dev-dependencies]
+dev = [
+    { name = "pyright" },
+]
+
 [package.metadata]
 requires-dist = [
     { name = "mcp", specifier = ">=1.0.0" },
@@ -167,6 +172,18 @@ requires-dist = [
     { name = "requests", specifier = ">=2.32.3" },
 ]
 
+[package.metadata.requires-dev]
+dev = [{ name = "pyright", specifier = ">=1.1.389" }]
+
+[[package]]
+name = "nodeenv"
+version = "1.9.1"
+source = { registry = "https://pypi.org/simple" }
+sdist = { url = "https://files.pythonhosted.org/packages/43/16/fc88b08840de0e0a72a2f9d8c6bae36be573e475a6326ae854bcc549fc45/nodeenv-1.9.1.tar.gz", hash = "sha256:6ec12890a2dab7946721edbfbcd91f3319c6ccc9aec47be7c7e6b7011ee6645f", size = 47437 }
+wheels = [
+    { url = "https://files.pythonhosted.org/packages/d2/1d/1b658dbd2b9fa9c4c9f32accbfc0205d532c8c6194dc0f2a4c0428e7128a/nodeenv-1.9.1-py2.py3-none-any.whl", hash = "sha256:ba11c9782d29c27c70ffbdda2d7415098754709be8a7056d79a737cd901155c9", size = 22314 },
+]
+
 [[package]]
 name = "pydantic"
 version = "2.10.2"
@@ -206,6 +223,19 @@ wheels = [
     { url = "https://files.pythonhosted.org/packages/df/c3/b15fb833926d91d982fde29c0624c9f225da743c7af801dace0d4e187e71/pydantic_core-2.27.1-cp313-none-win_arm64.whl", hash = "sha256:45cf8588c066860b623cd11c4ba687f8d7175d5f7ef65f7129df8a394c502de5", size = 1882983 },
 ]
 
+[[package]]
+name = "pyright"
+version = "1.1.389"
+source = { registry = "https://pypi.org/simple" }
+dependencies = [
+    { name = "nodeenv" },
+    { name = "typing-extensions" },
+]
+sdist = { url = "https://files.pythonhosted.org/packages/72/4e/9a5ab8745e7606b88c2c7ca223449ac9d82a71fd5e31df47b453f2cb39a1/pyright-1.1.389.tar.gz", hash = "sha256:716bf8cc174ab8b4dcf6828c3298cac05c5ed775dda9910106a5dcfe4c7fe220", size = 21940 }
+wheels = [
+    { url = "https://files.pythonhosted.org/packages/1b/26/c288cabf8cfc5a27e1aa9e5029b7682c0f920b8074f45d22bf844314d66a/pyright-1.1.389-py3-none-any.whl", hash = "sha256:41e9620bba9254406dc1f621a88ceab5a88af4c826feb4f614d95691ed243a60", size = 18581 },
+]
+
 [[package]]
 name = "python-dotenv"
 version = "1.0.1"