webspec-index
Use webspec-index to query WHATWG, W3C, IETF and TC39 web specifications from the command line
64
52%
Does it follow best practices?
Impact
80%
1.48xAverage score across 3 eval scenarios
Advisory
Suggest reviewing before use
Fix and improve this skill with Tessl
tessl review fix ./.agents/skills/webspec-index/SKILL.mdSecurity
1 medium severity finding. 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: 0.85). The skill’s runtime “query”/“search” commands fetch and cache web specifications from public sources (e.g., WHATWG/W3C/IETF/TC39 spec URLs) and then ingest the fetched section text into the agent’s LLM context as markdown/JSON, which is outsider-authored free text from public web content.
- Repository
- mozilla/enterprise-firefox
- Commit
7c07e6f
- 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.