Claude Code, Skill
Agents Best Practices
Provider-neutral Agent Skill for Codex, Claude Code, and agentic harness design.
Compatibility: Not stated.
Grade C
One Medium finding. Read the findings before installing.
Not a guarantee. A hygiene check of the source at the commit shown, not a security audit.
Rescanned at commit da245f8cbfc4.
AGENT_IGNORE_INSTRUCTIONS
Why this grade
- AGENT_IGNORE_INSTRUCTIONS Medium
Text tells the agent to ignore earlier instructions.
references/system-prompts-instructions.md, line 150
- “Ignore all previous instructions”;
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
Pass
No install-time script found, and dependencies are pinned or absent.
Network
Pass
No network call found.
Secrets
Pass
No read of a credential file or secret environment variable found.
Agent instructions
Serious
instructions tell the agent to ignore earlier instructions.
AGENT_IGNORE_INSTRUCTIONS
references/system-prompts-instructions.md, line 150
- “Ignore all previous instructions”;
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 da245f8cbfc4. instructions tell the agent to ignore earlier instructions.
Date and source
Date checked:
github.com
Commit graded: da245f8cbfc4c358e8c3cde61dbb703bd40292bc
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.