codex
Delegate coding to OpenAI Codex CLI (features, PRs).
60
72%
Does it follow best practices?
Run evals on this skill
Adds up to 20 points to the overall score
View guide
Critical
Do not install without reviewing
Fix and improve this skill with Tessl
tessl review fix ./skills/autonomous-ai-agents/codex/SKILL.mdSecurity
3 findings: 2 critical severity, 1 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
The URL https://github.com/user/repo.git is a direct GitHub clone from a generic/unknown username (a common vector for delivering unvetted code), while https://github.com/openai/codex is an official OpenAI repository and not suspicious.
E006: Malicious code pattern detected in skill scripts.
What this means
Detected high-risk code patterns in the skill content — including its prompts, tool definitions, and resources — such as data exfiltration, backdoors, remote code execution, credential theft, system compromise, supply chain attacks, and obfuscation techniques.
Why it was flagged
The document explicitly instructs disabling sandboxing and auto-approving file changes (e.g. --yolo, --sandbox danger-full-access, --full-auto), which intentionally removes safety barriers and enables remote code execution, unauthorized repository modification, and potential supply-chain/backdoor abuse.
W013: Attempt to modify system services in skill instructions.
What this means
The skill prompts the agent to compromise the security or integrity of the user’s machine by modifying system-level services or configurations, such as obtaining elevated privileges, altering startup scripts, or changing system-wide settings.
Why it was flagged
The skill explicitly recommends disabling sandboxing and using flags like `--yolo` and `--sandbox danger-full-access`, which bypass safety checks and allow unapproved, potentially system-modifying actions on the host.
- Repository
- NousResearch/hermes-agent
- Commit
5be99b6
- Audited
- Security analysis
Is this your skill?
If you maintain this skill, you can claim it as your own. Once claimed, you can manage eval scenarios, bundle related skills, attach documentation or rules, and ensure cross-agent compatibility.