Sunstone Weave: Local Semantic Code Search MCP Server
Sunstone Weave: Local Semantic Code Search runs on your own machine — the client starts it, so there is no endpoint to ping. 143 installs a week from npm. Last commit 30 Sep 2026.
Semantic search over local folders of code and docs, with a code-search encoder running on your CPU.
What the code does
We read the source, 6 d ago · rules ccca72095570
What this server is able to do. For an MCP server this is often the job itself — a terminal server runs commands because that is what it is for. Listed so you know what you are plugging in, not as an accusation.
try { ents = fs.readdirSync(path.join(folder, d), { withFileTypes: true }); } catch { return; }
Is this your server and something here is wrong? Tell us — corrections are free and do not require a plan.
This code can reach further than it looks
We found places where it runs commands, builds paths or queries from values it is given. None of that is a flaw by itself — it becomes one when the code changes, and code changes quietly between releases. We re-read it on every one.
Connect this server
This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.
claude mcp add blackwindow-weave-mcp -- npx -y blackwindow-weave-mcp{
"mcpServers": {
"blackwindow-weave-mcp": {
"args": [
"-y",
"blackwindow-weave-mcp"
],
"command": "npx"
}
}
}[mcp_servers.blackwindow-weave-mcp]
command = "npx"
args = ["-y", "blackwindow-weave-mcp"]{
"mcpServers": {
"blackwindow-weave-mcp": {
"args": [
"-y",
"blackwindow-weave-mcp"
],
"command": "npx"
}
}
}{
"mcpServers": {
"blackwindow-weave-mcp": {
"args": [
"-y",
"blackwindow-weave-mcp"
],
"command": "npx"
}
}
}This one needs environment variables set before it will start:
BLACKWINDOW_WEAVE_CACHE (Where the encoder and the indexes are kept (default ~/.cache/blackwindow-weave, %USERPROFILE%\.cache\blackwindow-weave on Windows)).
The author declared them in the registry entry; get the values from the project itself.
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Sunstone Weave: Local Semantic Code Search — questions
Answers built from our own checks of this server.