seatbelt-sandboxer

github.com/trailofbits/skills
Verdict: Generally safe
0 critical1 high1 medium
B
SCORE 75 / 100
$skillox install seatbelt-sandboxerSoon
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Why grade B?

score · 75 / 100

The current grade reflects 1 high-severity finding (any HIGH → B).

0 CRIT1 HIGH1 MED0 LOW
To reach a higher grade
  • A
    Reach Atarget score 95

    Resolve all 1 HIGH.

Thresholds are documented at /docs/grading. Source-of-truth is the grade() function in @skillox/scanner.

Latest scan findings

Scan crawl-b5ynwzvigjaqqzai07ufomyb · Thu, 28 May 2026 17:06:27 GMT · 2ms

high
Sensitive filesystem path referenced
The skill references a path (`~\/\.ssh\/`) that contains credentials or system secrets. Reading this from an unsandboxed skill is a credential-exfiltration vector.
rule: filesystem-overreachline: 175CWE-552
▾
173# Test security restrictions
174sandbox-exec -f profile.sb -D WORKING_DIR=/tmp -D HOME=$HOME \
175 cat ~/.ssh/id_rsa← sensitive path — credential-exfiltration vector
176# Expected: Operation not permitted
177```
med
No capability manifest declared
The skill ships without a `manifest.yaml` or `capabilities` block in its frontmatter. Without a manifest, the runtime cannot enforce what this skill is permitted to do.
rule: no-manifest
▾
View latest scan →
skillox.io/c/seatbelt-sandboxer