gstack
Fast headless browser for QA testing and site dogfooding. Navigate pages, interact with elements, verify state, diff before/after, take annotated screenshots, test responsive layouts, forms, uploads, dialogs, and capture bug evidence. Use when asked to open or test a site, verify a deployment, dogfood a user flow, or file a bug with screenshots.
80%
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Low
Low-risk findings worth noting
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tessl review fix ./skills/gstack/.agents/skills/gstack/SKILL.mdW011: 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
The skill uses a headless browser to navigate arbitrary websites and read page content or run code, which involves fetching outsider-authored web pages.
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 references `https://garryslist.org/posts/boil-the-ocean` for an informational essay and `https://bun.sh/install` as an optional setup installation script when Bun is missing, which are weak/unknown operational sources.
- Repository
valeriibeck-star/claude-skills
- Revision
0bda8b8
- Audited
- Security analysis
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