hallmark
Anti-AI-slop design skill for greenfield pages, audits, redesigns, and design extraction from URLs or screenshots. Use when the user asks to build a new app or landing page, wants to redesign something, invokes Hallmark by name, or uses audit/redesign/study.
68
84%
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Low
Low-risk findings worth noting
Low
Low-risk findings.
2 low severity findings. 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 the `hallmark study <screenshot | URL>` verb, URL mode extracts untrusted page HTML/CSS from a user-pasted external URL via WebFetch and feeds that readable content into the diagnosis pipeline.
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's "study" verb will WebFetch user-supplied http:// / https:// URLs at runtime and parse the remote page's HTML/CSS to produce the diagnosis and drive subsequent builds, so fetched external content can directly control the agent's outputs (see SKILL.md lines 22 and 490–495).
- Repository
- nexu-io/open-design
- Commit
1a7a23d
- Audited
- Security analysis
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