Grades are a hygiene check, not a security guarantee.

MCP, MCP server

sandy

Sandy runs TypeScript AWS queries inside a disposable sandbox, giving AI coding agents full SDK access and cross-account aggregation with no host credentials exposed.

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 INSTALL_UNPINNED NETWORK_NO_FIXED_HOST SECRETS_PATH_UNCONFIRMED INSTALL_DOCUMENTED_INSTALLER

Why this grade

  • PERMISSION_DELETE_FILES Low

    Contains a call that can delete files.

    src/resources/tmpdir.test.ts, line 26 await fs.rm(dir.path, { recursive: true, force: true })

  • INSTALL_UNPINNED Low

    Dependencies use a range or git URL with no lockfile.

    README.md, line 121 curl -fsSL https://github.com/jamestelfer/sandy/releases/latest/download/install.sh | sh

  • NETWORK_NO_FIXED_HOST Low

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

    embedded/bootstrap/init.sh, line 47 apt-get install -y --no-install-recommends curl xz-utils

  • SECRETS_PATH_UNCONFIRMED Low

    The Secrets check reports a credential or environment file, but no quoted line shows a recognisable path.

    src/sandbox/shuru-backend.test.ts, line 62 const env = spawnCalls[0]?.env ?? {}

  • INSTALL_DOCUMENTED_INSTALLER Note

    Documentation shows an installer that pipes a download into a shell.

    README.md, line 121 curl -fsSL https://github.com/jamestelfer/sandy/releases/latest/download/install.sh | sh

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/resources/tmpdir.test.ts, line 26

    await fs.rm(dir.path, { recursive: true, force: true })

    src/resources/tmpdir.test.ts, line 34

    await fs.rm(customBase, { recursive: true, force: true })

    src/resources/tmpdir.test.ts, line 45

    await fs.rm(customBase, { recursive: true, force: true }).catch(() => {})

    Show more

    src/resources/tmpdir.ts, line 19

    await fs.rm(dirPath, { recursive: true, force: true })

  • Install and update

    Concern

    dependencies are not pinned. README documents an installer that pipes a download into a shell.

    INSTALL_UNPINNED INSTALL_DOCUMENTED_INSTALLER

    README.md, line 121

    curl -fsSL https://github.com/jamestelfer/sandy/releases/latest/download/install.sh | sh

    package.json, line 26

    @biomejs/biome

  • Network

    Concern

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

    NETWORK_NO_FIXED_HOST

    embedded/bootstrap/init.sh, line 47

    apt-get install -y --no-install-recommends curl xz-utils

    embedded/bootstrap/init.sh, line 48

    curl -fsSL "${NODE_URL}" | tar -xJ -C /usr --strip-components=1

  • Secrets

    Concern

    reads a credential or environment file.

    SECRETS_PATH_UNCONFIRMED

    src/sandbox/shuru-backend.test.ts, line 62

    const env = spawnCalls[0]?.env ?? {}

    src/sandbox/shuru-backend.test.ts, line 74

    expect(spawnCalls[0]?.env?.AWS_REGION).toBe("us-west-2")

    src/test-support/helpers.ts, line 206

    spawnCalls.push({ cmd, env: spawnOpts?.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 a7450a26fa3d. can delete files. dependencies are not pinned. README documents an installer that pipes a download into a shell. 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: a7450a26fa3d013a0c15fc8b2a770383c9d0e9e2

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