diff --git a/mcp_codebase.py b/mcp_codebase.py
index 0604b81..2a52c3c 100644
--- a/mcp_codebase.py
+++ b/mcp_codebase.py
@@ -3024,7 +3024,6 @@ def find_brace_block_end(lines: List[str], start_idx: int) -> Optional[int]:
 # MCP Tools
 # -----------------------------
 @mcp.tool()
-@mcp.tool()
 def health_check() -> str:
     """What it does - Quick JSON status of the RAG server (ready, indexed path, chunk count, age, graph stats).
 When to use - Before any other query, to confirm the index is current and see codebase structure.
@@ -3045,7 +3044,7 @@ Example - health_check() → { "status":"ready","total_chunks":11234,"graph_node
                     repo_info = "Git repository (no branch info)"
 
             # Load graph to check if it exists
-            graph = LocalGraph(CODEBASE_PATH)
+            graph = LocalGraph(str(CODEBASE_PATH))
             graph_loaded = graph.load()
 
             status = {