Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add blockmatic/basilic --skill use-shadcngit clone --depth 1 https://github.com/blockmatic/basilicWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/blockmatic/basilic/use-shadcn)<a href="https://agentmods.dev/skills/blockmatic/basilic/use-shadcn"><img src="https://agentmods.dev/badge/skills/blockmatic/basilic/use-shadcn.svg" alt="Measured on agentmods" height="20"></a>- NVIDIA SkillSpector pass
What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00031 | $0.00378 |
| Opus 5 | $0.00015 | $0.00189 |
| Sonnet 5 | $0.00006 | $0.00076 |
| Haiku 4.5 | $0.00003 | $0.00038 |
Grade A, and why
use-shadcn scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
What it actually says
Purpose
Build shadcn/ui components following monorepo structure and coding standards.
Steps
- Use MCP servers: Use
shadcnui-officialfor single components/variants/canonical patterns, useshadcnui-jpisnice-reactfor full blocks/demos/page templates, only call MCP when unsure about implementation or encountering errors - Install in
@repo/ui: Install components inpackages/ui/src/components/, ensurecomponents.jsonpoints to@repo/ui/lib/utilsand@repo/ui/components, follow existing component organization patterns - Follow monorepo import patterns: Import from
@repo/ui/components/*never directly from packages/ui, use@repo/ui/lib/utilsfor utilities likecn, import Radix primitives from@repo/ui/radixnever directly from@radix-ui/react-* - Apply coding standards: Follow TypeScript rules (interfaces, type inference, RORO pattern), use class-variance-authority (cva) for variants, apply mobile-first responsive design, follow linting rules (Biome + ESLint)
- Verify and test: Run
pnpm lint:fixto ensure code quality, verify imports work correctly in consuming apps, test component functionality and responsiveness - Surfaces, not only primitives: After the component is installed, reshape screens with
/use-frontend— do not treat a new primitive as the whole UI job
Completion
Read completion evidence before reporting completion.
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 2d ago Changed · +8 lines 48dc8dd4441f
- 4d ago First seen · 15 lines · 31 tokens per session scan A 57aea3e25f10
use-shadcn is a skill published in the GitHub repository blockmatic/basilic (89 stars, last pushed yesterday), licensed MIT. It adds 31 tokens to every session and 378 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.
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