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The weave behind Black Window and Sunstone is now an MCP server for any client: blackwindow weave-mcp, on npm and in the official MCP Registry.
It indexes folders on your machine and answers plain-language or code questions with file paths, line ranges and the passages themselves.
RiverRider/motherlode-code-small-en-v0.1, a 33M-parameter code-search encoder, embeds them on your CPU. The first run makes six requests, all to Hugging Face, for the model; after that it makes none.
Measured once on an M2 Ultra through the MCP SDK's own client: the Sunstone repository, 57 files and 1,367 passages, woven in 20.2 s. Weaving it again took 0.014 s, and a search took 6 ms.
Claude Code:
claude mcp add weave -- npx -y blackwindow-weave-mcp --folder /path/to/repo
Cursor, VS Code, Claude Desktop and Windsurf run the same npx command from their MCP config.
npm: https://www.npmjs.com/package/blackwindow-weave-mcp
Registry: io.github.space-bacon/blackwindow-weave-mcp
Source: https://github.com/space-bacon/blackwindow-weave-mcp
Model: RiverRider/motherlode-code-small-en-v0.1
Licence: BUSL-1.1 with an internal-use grant, becoming Apache-2.0 on
15 September 2030.
It indexes folders on your machine and answers plain-language or code questions with file paths, line ranges and the passages themselves.
RiverRider/motherlode-code-small-en-v0.1, a 33M-parameter code-search encoder, embeds them on your CPU. The first run makes six requests, all to Hugging Face, for the model; after that it makes none.
Measured once on an M2 Ultra through the MCP SDK's own client: the Sunstone repository, 57 files and 1,367 passages, woven in 20.2 s. Weaving it again took 0.014 s, and a search took 6 ms.
Claude Code:
claude mcp add weave -- npx -y blackwindow-weave-mcp --folder /path/to/repo
Cursor, VS Code, Claude Desktop and Windsurf run the same npx command from their MCP config.
npm: https://www.npmjs.com/package/blackwindow-weave-mcp
Registry: io.github.space-bacon/blackwindow-weave-mcp
Source: https://github.com/space-bacon/blackwindow-weave-mcp
Model: RiverRider/motherlode-code-small-en-v0.1
Licence: BUSL-1.1 with an internal-use grant, becoming Apache-2.0 on
15 September 2030.