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Transmitt0r

mycelium

by Transmitt0r
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mycelium

Shared toolkit for building agent plugins over personal knowledge sources (documents, notes, and whatever comes next) — extracted out of the OpenClaw plugins for paperless-ngx and Trilium Notes, which had independently grown near-identical semantic search implementations.

Three problems, three packages:

Package

Problem it solves

@mycelium/embed

"I want to use any LLM for embeddings/retrieval, not just one hardcoded provider." Pluggable client for any OpenAI-compatible endpoint (OpenAI, OpenRouter, Ollama, vLLM, LM Studio, ...), plus an opt-in local CPU fallback with zero API dependency.

@mycelium/index

"I want semantic search over my personal document/note corpus without running a vector DB server." A local, file-backed sqlite-vec index with incremental sync and hybrid lexical+semantic search (Reciprocal Rank Fusion).

@mycelium/mcp

"I want my plugin's tools usable outside one specific agent host." Bridges the same tool definitions onto a standalone MCP server, over stdio and Streamable HTTP.

Plus @mycelium/tooling-config: shared biome/tsconfig presets so the standalone plugin repos this toolkit feeds stop drifting from each other.

Why "mycelium"

The fungal network that links otherwise-separate organisms and moves nutrients between them — which is the job here: linking separate personal-data sources to any LLM provider, over any transport, without each plugin reinventing the same wiring.

Related MCP server: ragi

Development

Bun-native: Bun as the package manager, workspace resolver, and test runner. TypeScript 7, Biome for lint/format, Changesets for versioning and multi-package releases.

bun install
bun run build
bun run lint
bun test

See AGENTS.md for repo layout and conventions.

License

MIT

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license - permissive license
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quality - not tested
C
maintenance

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