What is Byakugan: Private, open-source AI-text checker?
Byakugan: Private, open-source AI-text checker is an MCP server that gives AI assistants local detection, phrase-level tell identification, reuse checking against provided references, and grammar analysis. It runs entirely on the user’s machine and ships as both an MCP server and a TypeScript library.
How to use Byakugan: Private, open-source AI-text checker?
Add the server to your MCP client’s config with the command npx -y @jayofemi/ai-checker. For Claude Desktop, open Settings → Developer → Edit Config and insert the JSON block. After restarting, ask the assistant in plain language, for example: “use ai-checker to check whether this reads as AI” and paste your text. The server returns analysis; the assistant rewrites from it.
Key features of Byakugan: Private, open-source AI-text checker
- detect_ai_text returns a 0–100 likelihood with per-signal breakdown and confidence band.
- find_ai_tells identifies exact character spans that read as AI.
- check_reuse performs shingle‑overlap against reference documents you provide.
- check_grammar uses a rule‑based grammar and style checker (Harper) with suggested fixes.
- All tools are deterministic; the server does not rewrite text itself.
- Available as a TypeScript library via
npm install @jayofemi/ai-checker.
Use cases of Byakugan: Private, open-source AI-text checker
- Checking whether a piece of text reads as AI-generated, with a likelihood score rather than a binary verdict.
- Finding and rewriting only the specific phrases that sound formulaic or AI-like.
- Comparing a draft against your own reference documents for text reuse (no web search).
- Running a local, deterministic grammar and style check on any writing.
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