busybox-on-windows
How to use a Win32 build of BusyBox to run many of the standard UNIX command line tools on Windows.
71
Quality
60%
Does it follow best practices?
Impact
Pending
No eval scenarios have been run
Critical
Do not install without reviewing
Optimize this skill with Tessl
npx tessl skill review --optimize ./.agent/skills/busybox-on-windows/SKILL.mdSecurity
3 findings — 1 critical severity, 2 medium severity. Installing this skill is not recommended: please review these findings carefully if you do intend to do so.
E005: Suspicious download URL detected in skill instructions
What this means
Detected a suspicious URL in the skill instructions that could lead the agent to download and execute malicious scripts or binaries. This includes links to executables from untrusted sources, typosquatting of official packages, URL shorteners that obscure the destination, and personal file hosting services.
Why it was flagged
Suspicious download URL detected (high risk: 0.80). These URLs include direct .exe downloads hosted on a third‑party domain (frippery.org) rather than only the official BusyBox site (busybox.net), and direct executable downloads from unverified/third‑party hosts can be used to distribute malware unless validated by signatures or checksums—so treat them as high risk.
W011: Third-party content exposure detected (indirect prompt injection risk)
What this means
The skill exposes the agent to untrusted, user-generated content from public third-party sources, creating a risk of indirect prompt injection. This includes browsing arbitrary URLs, reading social media posts or forum comments, and analyzing content from unknown websites.
Why it was flagged
Third-party content exposure detected (high risk: 0.70). The SKILL.md explicitly instructs downloading and running a BusyBox binary from public third-party URLs (Invoke-WebRequest to https://frippery.org/... in step 3), which clearly fetches untrusted external content that the agent would execute/use and could therefore influence behavior.
W012: Unverifiable external dependency detected (runtime URL that controls agent)
What this means
The skill fetches instructions or code from an external URL at runtime, and the fetched content directly controls the agent’s prompts or executes code. This dynamic dependency allows the external source to modify the agent’s behavior without any changes to the skill itself.
Why it was flagged
Potentially malicious external URL detected (high risk: 0.90). The skill's runtime PowerShell commands download and install an executable from https://frippery.org/files/busybox/busybox64.exe (and related frippery.org busybox binaries), which fetches and will execute remote code as a required dependency.
- Repository
- Dokhacgiakhoa/antigravity-ide
- Commit
3395991
- Audited
- Security analysis
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