browser-extension-builder
Expert in building browser extensions that solve real problems - Chrome, Firefox, and cross-browser extensions. Covers extension architecture, manifest v3, content scripts, popup UIs, monetization strategies, and Chrome Web Store publishing. Use when: browser extension, chrome extension, firefox addon, extension, manifest v3.
68%
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Low
Low-risk findings worth noting
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tessl review fix ./.agent/skills/browser-extension-builder/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
Third-party content exposure detected (high risk: 1.00). The skill includes content scripts that run on arbitrary web pages (see sub-skills/basic-content-script.md and manifest-v3-template.md with "matches": ["<all_urls>"]) and explicitly read/act on page DOM (document.querySelector, .textContent), so untrusted third‑party web content can be ingested and influence extension behavior.
- Audited
- Security analysis
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