setup
Guided onboarding wizard for Ouroboros setup
57
67%
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Critical
Do not install without reviewing
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tessl review fix ./.claude-plugin/skills/setup/SKILL.mdSecurity
2 findings: 2 critical 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
This is a direct curl | sh installer hosted on astral.sh (an external third‑party domain) — piping remote .sh into a shell is a high-risk distribution vector that can execute arbitrary, potentially malicious code.
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 skill contains several behaviors that are privacy- and supply-chain–sensitive (automatic modification of user config files, scanning the user's home for git repos and registering them, using the user's GitHub auth and issuing gh API calls, and recommending curl|sh installer one‑liners) which could be abused to exfiltrate data or to introduce malicious code if the MCP/runtime or vendor installer are remote or compromised.
Low
Low-risk findings.
1 low severity finding. Worth noting, but not necessarily harmful.
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
The skill includes a vendor one-liner that, if run during setup, fetches and executes remote code via curl -LsSf https://astral.sh/uv/install.sh | sh, which is a runtime external dependency that executes remote code.
- Repository
- Q00/ouroboros
- Commit
f09fa36
- Audited
- Security analysis
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