webpagetest
Use when reviewing templates, rendered HTML, or shared components related to Analyze performance with WebPageTest. Validate the final browser-facing markup, not just the source framework abstraction.
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Low
Low-risk findings worth noting
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tessl review fix ./skills/webpagetest/SKILL.mdLow
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
Yes—WebPageTest API/runtime steps ingest results derived from a user-supplied URL and its fetched page assets (outsider-authored web content via the WebPageTest runTest/waitForResults → results.data.* → analysis.waterfall/summary), which are then embedded into the agent’s context in report/comment text.
- Repository
- thedaviddias/Front-End-Checklist
- Commit
48405aa
- Audited
- Security analysis
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