Claude Code, Skill
Harness Engineering Guide
A collection of agent skills that extend capabilities across AI engineering, development, and tooling.
Compatibility: Not stated.
Grade B
Minor issues only, no Medium or High. Worth a quick look at the findings below before installing.
Not a guarantee. A hygiene check of the source at the commit shown, not a security audit.
Rescanned at commit 0bc14ef85f2f, unchanged since the check below.
NETWORK_LOCALHOST
Why this grade
- NETWORK_LOCALHOST Note
Calls localhost only.
harness-engineering-guide/templates/init/init.sh, line 42
if curl -sf http://localhost:3000 > /dev/null 2>&1; then
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
Pass
No shell or command execution found, and no extra permission was declared.
Install and update
Pass
No install-time script found, and dependencies are pinned or absent.
Network
Note
can reach localhost.
NETWORK_LOCALHOST
harness-engineering-guide/templates/init/init.sh, line 42
if curl -sf http://localhost:3000 > /dev/null 2>&1; then
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 0bc14ef85f2f. can reach localhost.
Date and source
Date checked:
github.com
Commit graded: 0bc14ef85f2f9a905d0e5bd9e71e6d721d8a0bb5
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