# io.github.JayOfemi/byakugan (npm · @jayofemi/ai-checker)

Private, on-device AI-text analysis including detection, AI-tell spans, and reuse overlap.

- Trust score: 70/100 (medium)
- Change this week: −10
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-08-03

## Components

- npm · `@jayofemi/ai-checker`: 70/100 (this document), [markdown](https://verifymcp.io/servers/jayofemi-byakugan/jayofemi-ai-checker.md), [page](https://verifymcp.io/servers/jayofemi-byakugan/jayofemi-ai-checker)

## Channel facts

- Registry: `npm`
- Package: `@jayofemi/ai-checker`
- Version: `1.0.0`
- Transport: `stdio`

## Trust breakdown

How this component scores in each security and reliability category. Every signal is checked automatically from public evidence about the published package, including repeated runs of it in an isolated sandbox, and we only credit what we can confirm. Scores are 0–100 per category. Scoring method: https://verifymcp.io/docs/scoring (what has changed: https://verifymcp.io/docs/scoring/changelog)

Scored 2026-08-03.

- **Supply Chain Security**: 87/100
  - No malware found by supply-chain analysis.
  - Only part of the dependency tree could be resolved (97 of 101), so this covers what we could see, not the whole tree.
  - No install/post-install scripts declared.
  - Only part of the dependency tree could be resolved (97 of 101), so this covers what we could see, not the whole tree.
- **Provenance & Transparency**: 45/100
  - Source repository is publicly reachable at the declared URL.
  - Provenance check failed: no build-provenance attestation is published.
  - Clear OSI-approved license (MIT).
  - Actively maintained (last published 35 days ago).
  - Disclosure check failed: no security disclosure policy was found in the source repository.
- **Schema Quality & AI Usability**: 77/100
  - AI-judged instruction clarity (excellent).
  - Tool/resource definitions use about 355 tokens (~88/item across 4 items; 4 tools + 0 resources), lean.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 27/100
  - Stability observed for 8 of 30 days with no destabilising changes; credit accrues until the full window elapses.
- **Tool Coverage**: 100/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 100% of tool parameters carry a description.
- **Capabilities**: 100/100
  - Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.

## Install

### Claude

```bash
claude mcp add jayofemi-byakugan -- npx -y @jayofemi/ai-checker
```

### Codex

```bash
codex mcp add jayofemi-byakugan -- npx -y @jayofemi/ai-checker
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "jayofemi-byakugan": {
      "type": "local",
      "command": [
        "npx",
        "-y",
        "@jayofemi/ai-checker"
      ],
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add jayofemi-byakugan --command npx --arg -y --arg @jayofemi/ai-checker
```

### Hermes

```yaml
mcp_servers:
  jayofemi-byakugan:
    command: "npx"
    args: ["-y", "@jayofemi/ai-checker"]
```

### Other

```json
{
  "mcpServers": {
    "jayofemi-byakugan": {
      "command": "npx",
      "args": [
        "-y",
        "@jayofemi/ai-checker"
      ]
    }
  }
}
```

## Changelog

Every change recorded for this component, newest first. Days that predate change tracking, or that we cannot explain, say so: "we were watching and nothing happened" and "we were not watching" are different claims.

### 2026-08-03 (score 70, +1)

No change was recorded against any check on this day. Stability & Change Management went from 23 to 27. That category is still filling its 30-day observation window: 7 days of observed history at the previous scan, 8 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-08-02 (score 69, +33)

- [security regression] Provenance: unverified → fail
- [security improvement] Known CVEs: unverified → partial
- [security improvement] Install scripts: unverified → pass
- [security improvement] Malware scan: unverified → pass
- [security] Stability: Stability not yet verified: we do not have a sandbox capture of the MCP schema this version of the package serves yet.
- [functional regression] Capabilities: pass → unverified
- [functional regression] Tool coverage: 100 → unverified
- [functional improvement] Maintenance: unverified → pass
- [functional improvement] Dependency health: unverified → partial
- [functional improvement] Stability: unverified → 0.23
- [functional improvement] License: unverified → pass
- [functional] First check of Schema quality: unverified
- [functional] Licence: MIT

### 2026-07-31 (score 36, −4)

- [functional] We updated how we score, so this day's move reflects our rubric, not a change to the server

### 2026-07-30 (score 40, −40)

- [security regression] Malware scan: pass → unverified
- [security regression] Provenance: fail → unverified
- [security regression] Known CVEs: partial → unverified
- [security regression] Install scripts: pass → unverified
- [functional regression] Maintenance: pass → unverified
- [functional regression] Dependency health: partial → unverified
- [functional regression] License: pass → unverified
- [functional] Licence: MIT

### 2026-07-27 (score 80, +38)

- [functional] We updated how we score, so this day's move reflects our rubric, not a change to the server

### 2026-07-26 (score 42)

First indexed and scored.

## MCP tools (4)

### `detect_ai_text` (~101 tokens)

Detect AI text

Score how likely a passage reads as AI-written, fully on-device, with a per-signal breakdown and a confidence band. Returns a 0 to 100 likelihood, never a yes/no verdict. The signal is directional and biased against non-native English writers, so treat it as a second opinion and not proof. Get a read here, then call find_ai_tells to locate the spans worth rewriting.

Input parameters:

- `text` (string, required): The text to analyze.

### `find_ai_tells` (~87 tokens)

Find AI tells

Locate the exact character spans that read as AI, covering stock phrasing, long dashes, and formulaic sentence openers. Returns a list of spans with start, end, the matched text, and a note. Use these to rephrase only the flagged parts and leave the rest of the writing intact. Deterministic.

Input parameters:

- `text` (string, required): The text to analyze.

### `check_reuse` (~89 tokens)

Check reuse overlap

Compare the text against reference documents you provide, using word shingles, and return the share of overlap and the verbatim shared passages. This is a local check against the documents passed in. It does not search the web or any plagiarism database. Deterministic.

Input parameters:

- `references` (array, required): One or more of your own documents to compare against.
- `text` (string, required): The text to analyze.

### `check_grammar` (~78 tokens)

Check grammar

Run a rule-based grammar and style check over the text, fully on-device, and return each issue with its character span, a message, the flagged text, and suggested fixes. Use it to tidy grammar and phrasing, before or after rewriting the flagged AI tells. Deterministic.

Input parameters:

- `text` (string, required): The text to analyze.

## Diagnostics

Captured diagnostic sections: Provenance, Dependencies. The full working is on the page: https://verifymcp.io/servers/jayofemi-byakugan/jayofemi-ai-checker#diagnostics

## Score history

- 2026-08-03: 70
- 2026-08-02: 69
- 2026-08-01: 36
- 2026-07-31: 36
- 2026-07-30: 40
- 2026-07-28: 80
- 2026-07-27: 80
- 2026-07-26: 42

## Links

- npm package: https://www.npmjs.com/package/@jayofemi/ai-checker
- Socket report: https://socket.dev/npm/package/@jayofemi/ai-checker
- Repository: https://github.com/JayOfemi/byakugan
- Changelog RSS feed: https://verifymcp.io/servers/jayofemi-byakugan/jayofemi-ai-checker/changelog.xml
- Changelog JSON feed: https://verifymcp.io/servers/jayofemi-byakugan/jayofemi-ai-checker/changelog.json
- HTML version of this page: https://verifymcp.io/servers/jayofemi-byakugan/jayofemi-ai-checker