The plugin appears installed (skills like generate-image / generate-video are listed), but it does not load, so the Higgsfield MCP tools are unavailable in Agent chat.
Reinstalling does not fix it. This looks like the same class of issue as other marketplace plugins where an unrecognized $schema in plugin.json is treated as a hard load failure instead of a soft warning.
Environment:
Cursor: 3.15.6 (arm64)
OS: macOS
Plugin: Higgsfield (Higgsfield AI)
Plan: Pro+
Steps to Reproduce
Integrate Higgsfield Plugin with Cursor and you will view the problem
Hey there!
What you’re seeing isn’t intended behavior and isn’t anything on your end - reinstalling won’t change it. We’ve let the team know and this is an issue we’re tracking.
In the meantime, if Higgsfield offers a direct MCP endpoint, you can add it yourself under Settings → MCP (or in mcp.json) to get the tools in Agent chat without the marketplace plugin: Model Context Protocol (MCP) | Cursor Docs . No timeline yet, but I’ll post back here when there’s an update.
Hey there! Thanks for the detailed report. What you’re seeing isn’t intended behavior and isn’t anything on your end - reinstalling won’t change it. We’ve let the team know and this is an issue we’re tracking.
In the meantime, if Higgsfield offers a direct MCP endpoint, you can add it yourself under Settings → MCP (or in mcp.json) to get the tools in Agent chat without the marketplace plugin: Model Context Protocol (MCP) | Cursor Docs . No timeline yet, but I’ll post back here when there’s an update.