Claude Code, Skill
Cloud Sandbox Vm Skills
Agent skills for Box — the simplest and most affordable cloud sandbox / Linux VM for AI agents.
Compatibility: Not stated.
Grade D
Two or more Medium findings, or a High. Only try it in a sandbox.
Not a guarantee. A hygiene check of the source at the commit shown, not a security audit.
INSTALL_REMOTE_SCRIPT
Why this grade
- INSTALL_REMOTE_SCRIPT High
Fetches a script from the network and runs it (a pipe to a shell, or an install hook with a URL).
skills/agent-sandbox/SKILL.md, line 19
`curl -fsSL https://box.ascii.dev/install | sh`, then `box login "$BOX_API_KEY" --json`.
Any High, or two or more Medium findings, give D. One Medium gives C. Low findings or a security Note give B. Each code names a finding behind the letter.
If you think this grade is wrong, email [email protected] with the entry link and your evidence. We aim to acknowledge within two working days and decide within seven. If we confirm an error, we aim to correct it within 24 hours of confirming it. These are aims, not guarantees.
Grades are a hygiene check of the source at the commit shown, on the date checked, not a security audit or a guarantee. The free directory grades are automated. Before release, a PlugVet engineer reviews every paid report and any grade we hold back, including all F grades, against the source code and the evidence we quote.
What was checked
Plain notes from the hygiene checks.
Permissions
Pass
No shell or command execution found, and no extra permission was declared.
Install and update
Serious
install fetches a script from the network.
INSTALL_REMOTE_SCRIPT
README.md, line 37
curl -fsSL https://box.ascii.dev/install | sh # macOS / Linux
skills/agent-sandbox/SKILL.md, line 19
`curl -fsSL https://box.ascii.dev/install | sh`, then `box login "$BOX_API_KEY" --json`.
skills/background-worker/SKILL.md, line 18
`curl -fsSL https://box.ascii.dev/install | sh`, then `box login "$BOX_API_KEY" --json`.
Show more
skills/cloud-sandbox/SKILL.md, line 20
`curl -fsSL https://box.ascii.dev/install | sh`, then `box login "$BOX_API_KEY" --json`.
skills/cloud-vm/SKILL.md, line 21
`curl -fsSL https://box.ascii.dev/install | sh`, then `export BOX_API_KEY=…` and `box login "$BOX_API_KEY" --json`.
skills/code-execution/SKILL.md, line 20
`curl -fsSL https://box.ascii.dev/install | sh`, then `box login "$BOX_API_KEY" --json`.
skills/computer-use-browser-desktop/SKILL.md, line 30
`curl -fsSL https://box.ascii.dev/install | sh`, then `box login "$BOX_API_KEY" --json`.
skills/docker-sandbox/SKILL.md, line 18
`curl -fsSL https://box.ascii.dev/install | sh`, then `box login "$BOX_API_KEY" --json`.
skills/ephemeral-ci-environment/SKILL.md, line 18
`curl -fsSL https://box.ascii.dev/install | sh`, then `box login "$BOX_API_KEY" --json`. (Select the repo to auto-clone in the dashboard, or clone it in setup.)
skills/expose-localhost-tunnel/SKILL.md, line 29
`curl -fsSL https://box.ascii.dev/install | sh`, then `box login "$BOX_API_KEY" --json`.
skills/linux-server-ssh/SKILL.md, line 19
`curl -fsSL https://box.ascii.dev/install | sh`, then `box login "$BOX_API_KEY" --json`.
skills/parallel-agents/SKILL.md, line 22
`curl -fsSL https://box.ascii.dev/install | sh`, then `box login "$BOX_API_KEY" --json`.
skills/public-url-hosting/SKILL.md, line 29
`curl -fsSL https://box.ascii.dev/install | sh`, then `box login "$BOX_API_KEY" --json`.
skills/run-untrusted-code/SKILL.md, line 20
`curl -fsSL https://box.ascii.dev/install | sh`, then `box login "$BOX_API_KEY" --json`.
Network
Pass
No network call found.
Secrets
Pass
No read of a credential file or secret environment variable found.
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 95ab83b306c9. install fetches a script from the network.
Date and source
Date checked:
github.com
Commit graded: 95ab83b306c9313139409ad16aec7e1ccb0d57f5
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.