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theming

Guide Claude on Vaadin 25 theming with both Aura and Lumo themes. This skill should be used when the user asks to "choose a theme", "set up Aura", "set up Lumo", "customize the theme", "change colors", "enable dark mode", "customize design tokens", "use theme variants", "use utility classes", "change the color scheme", or needs help with theme-specific CSS custom properties, component theme variants, or building a custom theme in Vaadin 25.

64

Quality

77%

Does it follow best practices?

Impact

No eval scenarios have been run

SecuritybySnyk

Advisory

Suggest reviewing before use

Optimize this skill with Tessl

npx tessl skill review --optimize ./skills/theming/SKILL.md
SKILL.md
Quality
Evals
Security

Security

1 medium severity finding. This skill can be installed but you should review these findings before use.

Medium

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: 0.80). The SKILL.md explicitly instructs the agent to call Vaadin MCP tools (search_vaadin_docs, get_component_styling, get_component_java_api) to look up the latest Vaadin documentation (public Vaadin docs / referenced GitHub pages) as part of its required workflow, so the agent will fetch and interpret open/public third‑party content that can influence actions.

Report incorrect finding
Repository
vaadin/claude-plugin
Audited
Security analysis
Snyk

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.