Grades are a hygiene check, not a security guarantee.

MCP, MCP server

io.github.Ricky610329/mup

io.github.Ricky610329/mup, an MCP server listed in the PlugVet directory.

Compatibility: Not stated.

Grade B

Minor issues only, no Medium or High. Worth a quick look at the findings below before installing.

Graded by PlugVetRubric v2

Not a guarantee. A hygiene check of the source at the commit shown, not a security audit.

Rescanned at commit 107f9d58182c, unchanged since the check below.

PERMISSION_DELETE_FILES NETWORK_NO_FIXED_HOST SECRETS_PATH_DOTENV SECRETS_ENV_READ

Why this grade

  • PERMISSION_DELETE_FILES Low

    Contains a call that can delete files.

    archive/mup-agent/src/sessions.ts, line 72 if (fs.existsSync(p)) fs.unlinkSync(p);

  • NETWORK_NO_FIXED_HOST Low

    Makes a network call whose host is not written as a fixed address.

    archive/mup-agent/src/agent.ts, line 496 const resp = await fetch(url, {

  • SECRETS_PATH_DOTENV Low

    Mentions a .env file.

    archive/mup-agent/src/index.ts, line 18 path.resolve(".env"),

  • SECRETS_ENV_READ Note

    Reads an environment variable whose name contains KEY, SECRET, TOKEN, PASSWORD or CREDENTIAL.

    archive/mup-agent/src/index.ts, line 177 const hasKey = !!(finalKey || process.env.ANTHROPIC_API_KEY || process.env.OPENAI_API_KEY || process.env.GOOGLE_API_KEY || process.env.GROQ_API_KEY || process.env.XAI_API_KEY);

Any High, or two or more Medium findings, give D. One Medium gives C. Low findings or a security Note give B. Each code names a finding behind the letter.

Grades are a hygiene check of the source at the commit shown, on the date checked, not a security audit or a guarantee. The free directory grades are automated. Before release, a PlugVet engineer reviews every paid report and any grade we hold back, including all F grades, against the source code and the evidence we quote.

What was checked

Plain notes from the hygiene checks.

  • Permissions

    Concern

    can delete files.

    PERMISSION_DELETE_FILES

    archive/mup-agent/src/sessions.ts, line 72

    if (fs.existsSync(p)) fs.unlinkSync(p);

    mup-mcp-server/src/bridge.ts, line 563

    fs.unlinkSync(resolved);

  • Install and update

    Pass

    No install-time script found, and dependencies are pinned or absent.

  • Network

    Concern

    can reach a host that is not written as a fixed address.

    NETWORK_NO_FIXED_HOST

    archive/mup-agent/src/agent.ts, line 496

    const resp = await fetch(url, {

    archive/mup-agent/src/agent.ts, line 529

    const resp = await fetch(url, {

    mup-mcp-server/ui/app.js, line 181

    // ---- WebSocket (with exponential backoff) ----

    Show more

    mup-mcp-server/ui/app.js, line 187

    ws = new WebSocket(wsUrl);

    archive/mup-agent/ui/index.html, line 1104

    ws = new WebSocket(wsUrl);

    mup-mini-mcp-server/ui/index.html, line 231

    ws = new WebSocket(`ws://${location.host}`);

    spec/MUP-Spec.md, line 579

    5. Local file access beyond static `<link>` and `<script>` tags (e.g., `fetch()`, dynamic `import()`) is NOT guaranteed to work across hosts.

    spec/MUP-Spec.zh-TW.md, line 579

    5. 超出靜態 `<link>` 和 `<script>` 標籤的本地檔案存取（例如 `fetch()`、動態 `import()`）不保證（NOT guaranteed）在所有 host 上可用。

  • Secrets

    Concern

    reads a credential or environment file.

    SECRETS_ENV_READ SECRETS_PATH_DOTENV

    archive/mup-agent/src/index.ts, line 18

    path.resolve(".env"),

    archive/mup-agent/src/index.ts, line 19

    path.resolve(__dirname, "..", "..", ".env"),

    archive/mup-agent/src/index.ts, line 177

    const hasKey = !!(finalKey || process.env.ANTHROPIC_API_KEY || process.env.OPENAI_API_KEY || process.env.GOOGLE_API_KEY || process.env.GROQ_API_KEY || process.env.XAI_API_KEY);

    Show more

    archive/mup-agent/src/index.ts, line 37

    console.error(`[mup-agent] Loaded .env from ${envPath}`);

    archive/mup-agent/src/index.ts, line 53

    // Load .env before anything else

    archive/mup-agent/src/index.ts, line 187

    console.error(` 1. Create .env file: echo "ANTHROPIC_API_KEY=sk-ant-..." > .env`);

    .gitignore, line 4

    *.local

    archive/mup-agent/.env.example, line 1

    # Copy this file to .env and fill in your API key

    archive/mup-agent/.env.example, line 2

    # cp .env.example .env

  • Agent instructions

    Pass

    No instruction to ignore earlier instructions or to hide a step.

  • Obfuscation

    Pass

    No encoded or minified payload found.

  • Licence

    Pass

    A licence file is present (LICENSE).

  • Maintainer activity

    Pass

    The latest commit is within the last 365 days.

Get the full report on this tool, £49

Note

Hygiene check of commit 107f9d58182c. can delete files. can reach a host that is not written as a fixed address. reads a credential or environment file.

Date and source

Date checked:

View source

github.com

Commit graded: 107f9d58182ceb6e38ee3ebd5fb29ededf2986e1

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Read how this letter is chosen