diff --git a/pyproject.toml b/pyproject.toml
index cb1269a..c80eb0a 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "mcp-obsidian"
-version = "0.2.0"
+version = "0.2.1"
 description = "MCP server to work with Obsidian via the remote REST plugin"
 readme = "README.md"
 requires-python = ">=3.13"
diff --git a/src/mcp_obsidian/server.py b/src/mcp_obsidian/server.py
index 27995ab..a1e8caf 100644
--- a/src/mcp_obsidian/server.py
+++ b/src/mcp_obsidian/server.py
@@ -26,9 +26,9 @@ logger = logging.getLogger("mcp-obsidian")
 
 api_key = os.getenv("OBSIDIAN_API_KEY")
 if not api_key:
-    raise ValueError("OBSIDIAN_API_KEY environment variable required")
+    raise ValueError(f"OBSIDIAN_API_KEY environment variable required. Working directory: {os.getcwd()}")
 
-app = Server("mcp-knowledge-base")
+app = Server("mcp-obsidian")
 
 tool_handlers = {}
 def add_tool_handler(tool_class: tools.ToolHandler):
diff --git a/src/mcp_obsidian/tools.py b/src/mcp_obsidian/tools.py
index 14c3d3c..4b252ca 100644
--- a/src/mcp_obsidian/tools.py
+++ b/src/mcp_obsidian/tools.py
@@ -11,7 +11,7 @@ from . import obsidian
 
 api_key = os.getenv("OBSIDIAN_API_KEY", "")
 if api_key == "":
-    raise ValueError("OBSIDIAN_API_KEY environment variable required")
+    raise ValueError(f"OBSIDIAN_API_KEY environment variable required. Working directory: {os.getcwd()}")
 
 TOOL_LIST_FILES_IN_VAULT = "list_files_in_vault"
 TOOL_LIST_FILES_IN_DIR = "list_files_in_dir"