scrape
Pull data from a web page. (gstack)
Security
1 critical severity finding. Installing this skill is not recommended: please review these findings carefully if you do intend to do so.
E004: Prompt injection detected in skill instructions.
What this means
Detected a prompt injection in the skill instructions. The skill contains hidden or deceptive instructions that fall outside its stated purpose and attempt to override the agent’s safety guidelines or intended behavior.
Why it was flagged
The document explicitly instructs the agent to embed a hidden, non-visible marker ("<gstack-qid:...>") inside user-facing AskUserQuestion text so hooks can read it, which is a concealed instruction altering outputs outside the /scrape skill's stated read-only scraping purpose.
Low
Low-risk findings.
1 low severity finding. Worth noting, but not necessarily harmful.
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
In /scrape the required runtime “prototype path” uses $B goto <url> from the user’s intent and then ingests page text/HTML via $B snapshot --text and $B html (plus $B links), so outsider-authored free text from any user-chosen page can be read at runtime.
- Repository
- garrytan/gstack
- Path
scrape/SKILL.md
- Commit
d078622
- Audited
- Security analysis
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