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fastroute

Local MCP plugin: when an agent receives a new task, retrieve Top-N recommendations from all locally installed skills (user-level/plugin-level/project-level). It only recommends, never executes.

The indexing method comes from SkillRouter (arXiv 2603.22455): all-field segmented multi-vector (one vector for name+description + one vector for each ~800-character chunk of body text); for a query, cosine similarity is computed against each chunk, and skill scores are max-pooled.

Tools

Tool

Purpose

recommend_skills

Retrieves the most relevant skill before a task starts; returns score, tier (auto/prompt/skip, reference values), invocation name and path

reindex_skills

Incrementally rebuilds the index after installing/removing skills (mtime diff); no session restart needed

Related MCP server: skills-mcp-server

Installation (Claude Code)

claude mcp add fastroute -- node /absolute/path/to/fastroute/dist/index.js

Data and Models

  • Data directory ~/.fastroute (overridden by FASTROUTE_DATA_DIR): fastroute.db, config.json, models/

  • Embedding model: Xenova/paraphrase-multilingual-MiniLM-L12-v2 (q8, ~135 MB), downloaded online when the tool is first invoked; defaults to the ModelScope mirror (FASTROUTE_EMBEDDING_HOST can point back to https://huggingface.co); if a ~/.knowyoubetter/models cache already exists, it is reused directly

  • The model is a hard dependency: when offline and no cache is available, the tool returns an error and download instructions; there is no lexical fallback

  • config.json can override: chunkSize(800), autoThreshold(0.9), promptThreshold(0.6), topK(5), userSkillsDir, pluginCacheDir, projectSkillsEnabled

  • After changing chunkSize, existing indexes are not automatically re-chunked: delete ~/.fastroute/fastroute.db and then call reindex_skills

Development

npm install
npm test            # 单测 + 集成(fake embedder,不联网)
npm run test:real   # 真实 embedding 冒烟(首次下载模型)
npm run eval        # distractor 评测:Hit@1/Hit@5/MRR
npm run build
npx @modelcontextprotocol/inspector node dist/index.js

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  • Fastio gives your team and AI agents a workspace for each project, bringing source files, comments and new work together. Connect a compatible MCP client to find files, answer questions from project material, and save results where the team can review and use them. \ Sign in through Fastio and choose the workspaces the connection can reach. Read Only connections expose read tools; Read & Write connections also allow changes. \ • **Files and folders:** browse, read, upload, and organize files, with version history and trash. • **Search:** find files by keyword; search file content and meaning when Deep Indexing is enabled and files have been processed. • **Metadata:** read, set, and search metadata fields, including extracted fields where available. • **Shares:** create and manage shares for sending or collecting files. • **Comments and members:** read and add comments, and manage workspace membership within your permissions. • **Activity:** search workspace events to see what changed. \ Hosted by Fastio, with no server installation required. \ • **Claude and most MCP clients:** https://mcp.fast.io/mcp/tools • **ChatGPT:** https://mcp.fast.io/mcp/operations • **ChatGPT and Codex:** Fastio plugin • **Claude Code, Cursor and similar coding agents:** https://mcp.fast.io/mcp/code • **Setup and client-specific capabilities:** https://mcp.fast.io/docs \ Paid plans. Monthly plans include a trial of up to 30 days. A card is required, and billing begins when the trial ends or trial credits run out, whichever comes first. No free plan.

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