skill-porter
Converts Claude Code skills to Gemini CLI extensions and vice versa. Use when the user wants to make a skill cross-platform compatible, port a skill between platforms, or create a universal extension that works on both Claude Code and Gemini CLI.
Security
2 findings — 2 medium severity. This skill can be installed but you should review these findings before use.
W011: Third-party content exposure detected (indirect prompt injection risk)
What this means
The skill exposes the agent to untrusted, user-generated content from public third-party sources, creating a risk of indirect prompt injection. This includes browsing arbitrary URLs, reading social media posts or forum comments, and analyzing content from unknown websites.
Why it was flagged
Third-party content exposure detected (high risk: 0.90). This skill accepts and clones arbitrary repositories (see src/optional-features/fork-setup.js::_cloneRepository which runs git clone on a user-provided repoUrl) and its detection/conversion code explicitly reads and interprets untrusted, user-authored files like SKILL.md and GEMINI.md (src/analyzers/detector.js and src/converters/*), so third‑party content can directly influence generated manifests, commands, validation, and PR/fork actions.
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
Potentially malicious external URL detected (high risk: 0.80). The code calls git clone at runtime (execSync(`git clone ${repoUrl} ${forkPath}`) in src/optional-features/fork-setup.js), so a supplied remote git URL (e.g., https://github.com/USER/REPO.git) can be fetched during execution and the repository's SKILL.md/GEMINI.md or command files can be read and injected into generated context/prompts, allowing remote content to control agent instructions.
- Repository
- Demerzels-lab/elsamultiskillagent
- Commit
45f9fac
- 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.