Claude Desktop (apparently) seeing tools but not resources

[Goose66]

Claude Desktop is seeing and utilizing my tools declared with the @server.tool() decorator, but not seeing my resources declared with the @server.resource() decorator, e.g., @server.resource("patent://applications/{application_number}"). It appears in the "MCP Log File" in Claude Desktop that the "resources/list" method call is returning an empty list (2025-06-12T03:31:37.441Z [info] [USPTO ODP API] Message from server: {"jsonrpc":"2.0","id":27,"result":{"resources":[]}}).

EDIT: Just ran the MCP server with MCP Inspector and it also does not see any of the defined resources. This is FastMCP 2.8.0. Any ideas? Do I need to move this to an issue?

[Convl]

Similar, albeit slightly different situation: I haven't yet tried using resources, but I have tried using tools and prompts. Also, I used claude code and cursor as clients instead of claude desktop. However, the issue is the same: Both claude code and cursor can access the tools just fine, but they do not see the prompts (even though the prompts appear to work fine when i run mcp dev server.py)

[bigjools]

EDIT: Just ran the MCP server with MCP Inspector and it also does not see any of the defined resources. This is FastMCP 2.8.0. Any ideas? Do I need to move this to an issue?

I see the exact same problem in very simple test code that adds a templated resource.