Grades are a hygiene check, not a security guarantee.

Claude Code, Skill

Sam3 Segmentation

Outline, mask or count objects in images with Meta's SAM 3 on a local NVIDIA GPU: quick direct calls, or a careful, auditable workflow for many small objects, with review, refinement, COCO/PNG exports and a viewer.

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.

NETWORK_NO_FIXED_HOST SECRETS_PATH_DOTENV PERMISSION_SHELL_DECLARED

Why this grade

  • NETWORK_NO_FIXED_HOST Low

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

    docs/hero/make.sh, line 14 curl -sSL -A "sam3-segmentation-docs" -o "$work/corn.jpg" \

  • SECRETS_PATH_DOTENV Low

    Mentions a .env file.

    .gitignore, line 7 .env

  • PERMISSION_SHELL_DECLARED Note

    Runs shell commands, and the manifest or description says so.

    skills/sam3-segmentation/scripts/sam3_backend.py, line 138 probe = subprocess.run(

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

    Note

    requests shell access. The manifest names this permission.

    PERMISSION_SHELL_DECLARED

    skills/sam3-segmentation/scripts/sam3_backend.py, line 138

    probe = subprocess.run(

    skills/sam3-segmentation/scripts/segment.py, line 1296

    probe = subprocess.run(

  • 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

    docs/hero/make.sh, line 14

    curl -sSL -A "sam3-segmentation-docs" -o "$work/corn.jpg" \

    skills/sam3-segmentation/scripts/viewer.html, line 658

    const response = await fetch("data.json");

  • Secrets

    Concern

    reads a credential or environment file.

    SECRETS_PATH_DOTENV

    .gitignore, line 6

    .ruff_cache/

    .gitignore, line 7

    .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.

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Note

Hygiene check of commit d2d512910e29. requests shell access. The manifest names this permission. 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: d2d512910e2967129dea6a4f8d500d8b547b8e53

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