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FastMCP compatibility with prompts #14613
Description
Question
I have a fastmcp server exposing prompts, resources and tools. Opencode interacts well with tools but is unable to fetch prompts. no /my-mcp:prompt , no traces of ListPromptsRequest on my server logs.
The command fastmcp list http://localhost:5000/mcp --prompts returns prompt correctly though, so no misconfiguration on my mcp server. What am I missing?
opencode version 1.2.10
fastmcp verison 3.0.0
Reacted by Jonathan Roemer
Activity
github-actions commentedon Feb 21, 2026
This issue might be a duplicate of existing issues. Please check:
If your issue is specifically that prompts are never listed or fetched at all (no
ListPromptsRequestsent), it may be a distinct bug worth keeping open.adgaultier commentedon Feb 23, 2026
It’s distinct bug
adgaultier commentedon Feb 27, 2026
=> Prompts and resources aren't properly fetched when prompt arguments list is empty. Added a default non required argument as temporary fix
github-actions commentedon Apr 29, 2026
To stay organized issues are automatically closed after 60 days of no activity. If the issue is still relevant please open a new one.