Add MCP prompt support to agent threads #43523
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Fixes zed-industries#43165 MCP prompts are now available in agent threads, not just text threads. - Added ContextServerPromptRegistry to track MCP prompts from context servers - Integrated prompt discovery into agent session initialization - Prompts appear in slash command menu when typing /
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@mdliss Thank you for the head start on this! I think we can now merge it. CleanShot.2025-12-16.at.13.09.32.mp4 |
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Fixes #43165 ## Problem MCP prompts were only available in text threads, not agent threads. Users with MCP servers that expose prompts couldn't use them in the main agent panel. ## Solution Added MCP prompt support to agent threads by: - Creating `ContextServerPromptRegistry` to track MCP prompts from context servers - Subscribing to context server events to reload prompts when MCP servers start/stop - Converting MCP prompts to available commands that appear in the slash command menu - Integrating prompt expansion into the agent message flow ## Testing Tested with a custom MCP server exposing `explain-code` and `write-tests` prompts. Prompts now appear in the `/` slash command menu in agent threads. Release Notes: - Added MCP prompt support to agent threads. Prompts from MCP servers now appear in the slash command menu when typing `/` in agent threads. --------- Co-authored-by: Agus Zubiaga <agus@zed.dev>
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Fixes zed-industries#43165 ## Problem MCP prompts were only available in text threads, not agent threads. Users with MCP servers that expose prompts couldn't use them in the main agent panel. ## Solution Added MCP prompt support to agent threads by: - Creating `ContextServerPromptRegistry` to track MCP prompts from context servers - Subscribing to context server events to reload prompts when MCP servers start/stop - Converting MCP prompts to available commands that appear in the slash command menu - Integrating prompt expansion into the agent message flow ## Testing Tested with a custom MCP server exposing `explain-code` and `write-tests` prompts. Prompts now appear in the `/` slash command menu in agent threads. Release Notes: - Added MCP prompt support to agent threads. Prompts from MCP servers now appear in the slash command menu when typing `/` in agent threads. --------- Co-authored-by: Agus Zubiaga <agus@zed.dev>
LivioGama
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Jan 20, 2026
Fixes zed-industries#43165 ## Problem MCP prompts were only available in text threads, not agent threads. Users with MCP servers that expose prompts couldn't use them in the main agent panel. ## Solution Added MCP prompt support to agent threads by: - Creating `ContextServerPromptRegistry` to track MCP prompts from context servers - Subscribing to context server events to reload prompts when MCP servers start/stop - Converting MCP prompts to available commands that appear in the slash command menu - Integrating prompt expansion into the agent message flow ## Testing Tested with a custom MCP server exposing `explain-code` and `write-tests` prompts. Prompts now appear in the `/` slash command menu in agent threads. Release Notes: - Added MCP prompt support to agent threads. Prompts from MCP servers now appear in the slash command menu when typing `/` in agent threads. --------- Co-authored-by: Agus Zubiaga <agus@zed.dev>
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Fixes #43165
Problem
MCP prompts were only available in text threads, not agent threads. Users with MCP servers that expose prompts couldn't use them in the main agent panel.
Solution
Added MCP prompt support to agent threads by:
ContextServerPromptRegistryto track MCP prompts from context serversTesting
Tested with a custom MCP server exposing
explain-codeandwrite-testsprompts. Prompts now appear in the/slash command menu in agent threads.Release Notes:
/in agent threads.