How to install agent-harnesses in Windsurf
To install agent-harnesses in Windsurf, paste the "agent-harnesses" block into ~/.codeium/windsurf/mcp_config.json and refresh the MCP panel in Cascade.
Built from the published package · server updated 4 days ago
- 1
Open the MCP config
In Windsurf, open Settings, then Cascade, then MCP servers, and choose to view the raw config.
- 2
Add the server
Paste this into mcp_config.json:
{ "mcpServers": { "agent-harnesses": { "command": "uvx", "args": [ "agent-harnesses-mcp" ] } } } - 3
Refresh
Click refresh in the MCP panel. The server and its tools appear in Cascade.
Config file: ~/.codeium/windsurf/mcp_config.json
MCP servers run with your permissions. If agent-harnesses needs an API key, add it under env in the config. Check its README.
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Questions
Does agent-harnesses work in Windsurf?
Yes. Windsurf supports local and remote mcp servers, and agent-harnesses installs with the steps above.
agent-harnesses does not show up in Windsurf. What now?
Restart Windsurf fully, check the JSON is valid, and make sure uv (for uvx) is installed. See common MCP errors and fixes.
Is agent-harnesses safe?
It scores 86 of 100. Review the code before you install it, and only give it the access it needs. Grades and details.
