Grades are a hygiene check, not a security guarantee.

MCP, MCP server

Sleeper Mcp

A comprehensive Model Context Protocol (MCP) Server for integrating with Sleeper Fantasy Football.

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.

PERMISSION_DELETE_FILES NETWORK_NO_FIXED_HOST SECRETS_PATH_DOTENV

Why this grade

  • PERMISSION_DELETE_FILES Low

    Contains a call that can delete files.

    src/sleeper-client.ts, line 277 await fs.unlink(PLAYERS_CACHE_FILE);

  • NETWORK_NO_FIXED_HOST Low

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

    src/sleeper-client.ts, line 35 const response = await fetch(`${BASE_URL}${endpoint}`);

  • SECRETS_PATH_DOTENV Low

    Mentions a .env file.

    .gitignore, line 13 .env

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

    src/sleeper-client.ts, line 277

    await fs.unlink(PLAYERS_CACHE_FILE);

    src/sleeper-client.ts, line 278

    await fs.unlink(CACHE_META_FILE);

  • 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

    src/sleeper-client.ts, line 35

    const response = await fetch(`${BASE_URL}${endpoint}`);

  • Secrets

    Concern

    reads a credential or environment file.

    SECRETS_PATH_DOTENV

    .gitignore, line 12

    # Environment files

    .gitignore, line 13

    .env

    .gitignore, line 14

    .env.local

    Show more

    .gitignore, line 15

    .env.development.local

    .gitignore, line 16

    .env.test.local

    .gitignore, line 72

    # dotenv environment variables file

    .npmignore, line 36

    # Environment files

  • Agent instructions

    Pass

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

  • Obfuscation

    Pass

    No encoded or minified payload found.

  • Licence

    Note

    no licence file found.

    LICENCE_MISSING

    No file path was stored.

    no licence file found.

  • Maintainer activity

    Note

    the latest commit is more than 365 days old.

    MAINTAINER_STALE

    No file path was stored.

    2025-10-05T20:56:51+02:00

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Note

Hygiene check of commit cf13f70f497c. can delete files. can reach a host that is not written as a fixed address. reads a credential or environment file. no licence file found. the latest commit is more than 365 days old.

Date and source

Date checked:

View source

github.com

Commit graded: cf13f70f497c2457ab0db504e947d1d5a975d2d4

This link goes to the original host. PlugVet does not host or check what you download from there, and installing it is your own decision and risk.

Read how this letter is chosen