CtrlK
BlogDocsLog inGet started
Tessl Logo

shadcn

Manages shadcn components and projects — adding, searching, fixing, debugging, styling, and composing UI. Provides project context, component docs, and usage examples. Applies when working with shadcn/ui, component registries, presets, --preset codes, or any project with a components.json file. Also triggers for "shadcn init", "create an app with --preset", or "switch to --preset".

76

Quality

96%

Does it follow best practices?

Run evals on this skill

Adds up to 20 points to the overall score

View guide

SecuritybySnyk

Critical

Do not install without reviewing

SKILL.md
Quality
Evals
Security

Security

1 critical severity finding. Installing this skill is not recommended: please review these findings carefully if you do intend to do so.

Critical

E005: Suspicious download URL detected in skill instructions.

What this means

Detected a suspicious URL in the skill instructions that could lead the agent to download and execute malicious scripts or binaries. This includes links to executables from untrusted sources, typosquatting of official packages, URL shorteners that obscure the destination, and personal file hosting services.

Why it was flagged

Several URLs point to user-controlled or third-party hosts (acme.com, private.com, api.npoint.io) and raw GitHub content — sources that can serve arbitrary code/JSON and are explicitly shown in the skill as examples where the CLI warns against manual raw fetches, so they could be used to distribute malicious component files if untrusted.

Report incorrect finding

Low

Low-risk findings.

2 low severity findings. Worth noting, but not necessarily harmful.

Low

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—required workflow includes fetching component documentation/examples and “fetch the URLs to get the actual content” (public web/registry content), which can include outsider-authored free text that the agent then reads and uses in prompts (SKILL.md workflow steps 4 and 7 plus CLI docs describing fetching examples from URLs).

Low

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 explicitly instructs fetching remote component docs/examples at runtime (e.g., https://raw.githubusercontent.com/.../examples/input-example.tsx, https://api.npoint.io/abc123, https://ui.shadcn.com/r/registries.json), which would inject externally-hosted source/instructions into the agent's context and thus directly influence its behavior.

Repository
databricks/devhub
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.