Grades are a hygiene check, not a security guarantee.

MCP, MCP server

Aseprite Mcp

A Python MCP server that gives AI assistants full control over Aseprite for creating pixel art and animated sprites.

Compatibility: Not stated.

Grade C

One Medium finding. Read the report before installing.

Graded by PlugVetRubric v2

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

PERMISSION_SHELL_UNDECLARED

Why this grade

  • PERMISSION_SHELL_UNDECLARED Medium

    Runs shell commands that the manifest or description does not mention.

    aseprite_mcp/core/commands.py, line 54 result = subprocess.run(cmd, check=True, capture_output=True, text=True)

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

    requests shell access. No manifest field names shell or command execution. can delete files.

    PERMISSION_SHELL_UNDECLARED PERMISSION_DELETE_FILES

    aseprite_mcp/core/commands.py, line 54

    result = subprocess.run(cmd, check=True, capture_output=True, text=True)

    aseprite_mcp/core/commands.py, line 85

    os.remove(script_path)

    aseprite_mcp/tools/preview.py, line 14

    result = subprocess.run(

    Show more

    aseprite_mcp/tools/preview.py, line 46

    os.remove(pid_file)

    aseprite_mcp/tools/preview.py, line 54

    proc = subprocess.Popen(args, **popen_kwargs)

    aseprite_mcp/tools/preview.py, line 76

    subprocess.run(["taskkill", "/PID", str(pid), "/T", "/F"], check=False, capture_output=True)

    aseprite_mcp/tools/preview.py, line 80

    os.remove(pid_file)

  • Install and update

    Concern

    dependencies are not pinned.

    INSTALL_UNPINNED

    requirements.txt, line 1

    typing_extensions>=4.12.2

  • Network

    Pass

    No network call found.

  • Secrets

    Concern

    reads a credential or environment file.

    SECRETS_PATH_DOTENV

    aseprite_mcp/core/commands.py, line 6

    _ENV_PATH = os.path.abspath(os.path.join(os.path.dirname(__file__), "..", "..", ".env"))

    .gitignore, line 1

    .env

    DOCKER.md, line 80

    # Reads credentials from a .env file (recommended)

    Show more

    DOCKER.md, line 81

    docker run --rm -i --env-file .env aseprite-mcp:latest

    DOCKER.md, line 93

    If you need to pass environment variables, create a `.env` file based on `sample.env` and uncomment the `env_file` section in `docker-compose.yml`.

    README.md, line 404

    # Create a .env with STEAM_USERNAME/STEAM_PASSWORD (and optional STEAM_GUARD_CODE)

    README.md, line 406

    docker run --rm -i --env-file .env aseprite-mcp:latest

    README.md, line 416

    - Aseprite (set `ASEPRITE_PATH` in `.env` if it is not on your PATH)

  • 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.

Note

Hygiene check of commit a89b205bed31. requests shell access. No manifest field names shell or command execution. can delete files. dependencies are not pinned. reads a credential or environment file.

Date and source

Date checked:

View source

github.com

Commit graded: a89b205bed31930ee141edf319e78c71ef16bba6

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