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 heyAyushh/stacc --skill nextjsgit clone --depth 1 https://github.com/heyAyushh/staccWrote 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/heyayushh/stacc/nextjs)<a href="https://agentmods.dev/skills/heyayushh/stacc/nextjs"><img src="https://agentmods.dev/badge/skills/heyayushh/stacc/nextjs/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/heyayushh/stacc/nextjs"><img src="https://agentmods.dev/badge/skills/heyayushh/stacc/nextjs.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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 | $0.00077 | $0.01488 |
| Opus 5 | $0.00039 | $0.00744 |
| Sonnet 5 | $0.00015 | $0.00298 |
| Haiku 4.5 | $0.00008 | $0.00149 |
Grade A, and why
frontend-design 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 9d 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.
How it starts
The opening of the file, as written. The whole thing — 88 lines — stays where its author put it; the contents beside it link to each section on GitHub.
This skill guides creation of distinctive, production-grade frontend interfaces that avoid generic "AI slop" aesthetics. Implement real working code with exceptional attention to aesthetic details and creative choices.
The user provides frontend requirements: a component, page, application, or interface to build. They may include context about the purpose, audience, or technical constraints.
Next.js Stack Context (Vercel)
As a Next.js expert at Vercel, you should produce LLM-friendly guidance and implementation that is:
- Accurate to modern Next.js conventions (App Router, RSC, edge/runtime boundaries, data fetching).
- Explicit about tradeoffs, constraints, and recommended defaults.
- Practical and copy-ready, with explanations that help other LLMs and humans follow your intent.
Related Rules and Skills (Use Them Together)
When working in this stack, also consult:
configs/stack/nextjs/react-best-practices/SKILL.mdfor React architecture, rendering, data, and performance guidance.configs/stack/nextjs/composition-patterns/SKILL.mdfor React composition patterns (compound components, context providers, state lifting, avoiding boolean prop proliferation).configs/stack/nextjs/web-interface-guidelines/SKILL.mdfor UI/UX and web interface expectations.configs/stack/nextjs/agentation/SKILL.mdfor adding Agentation visual feedback toolbar to Next.js projects.configs/stack/nextjs/rules/next-js.mdcandconfigs/stack/nextjs/rules/typescript.mdcfor always-applied stack rules.configs/rules/for repo-wide rules that apply across stacks.
Workflow (use this order)
- Classify the task: routing/data, UI, performance, or infra.
- Decide server vs client components; minimize
use client. - Choose data strategy (RSC fetch, route handlers, server actions).
- Implement UI with accessibility and responsive constraints.
- Validate loading/error states and edge cases.
- Add tests or checks appropriate to the change.
Review Checklist
What ships with it
60 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
- agentation/SKILL.md 1.4 KB
- composition-patterns/AGENTS.md 22 KB
- composition-patterns/metadata.json 530 B
- composition-patterns/README.md 2.1 KB
- composition-patterns/rules/_sections.md 829 B
- composition-patterns/rules/_template.md 329 B
- composition-patterns/rules/architecture-avoid-boolean-props.md 2.2 KB
- composition-patterns/rules/architecture-compound-components.md 2.5 KB
- composition-patterns/rules/patterns-children-over-render-props.md 1.8 KB
- composition-patterns/rules/patterns-explicit-variants.md 2.3 KB
- composition-patterns/rules/react19-no-forwardref.md 953 B
- composition-patterns/rules/state-context-interface.md 4.9 KB
- composition-patterns/rules/state-decouple-implementation.md 2.6 KB
- composition-patterns/rules/state-lift-state.md 3.1 KB
- composition-patterns/SKILL.md 2.8 KB
- react-best-practices/AGENTS.md 59 KB
- react-best-practices/metadata.json 921 B
- react-best-practices/README.md 3.3 KB
- react-best-practices/rules/_sections.md 1.5 KB
- react-best-practices/rules/_template.md 631 B
- react-best-practices/rules/advanced-event-handler-refs.md 1.4 KB
- react-best-practices/rules/advanced-use-latest.md 1.2 KB
- react-best-practices/rules/async-api-routes.md 1.1 KB
- react-best-practices/rules/async-defer-await.md 2.0 KB
- react-best-practices/rules/async-dependencies.md 942 B
- react-best-practices/rules/async-parallel.md 654 B
- react-best-practices/rules/async-suspense-boundaries.md 2.5 KB
- react-best-practices/rules/bundle-barrel-imports.md 2.3 KB
- react-best-practices/rules/bundle-conditional.md 866 B
- react-best-practices/rules/bundle-defer-third-party.md 920 B
- react-best-practices/rules/bundle-dynamic-imports.md 791 B
- react-best-practices/rules/bundle-preload.md 1.1 KB
- react-best-practices/rules/client-event-listeners.md 1.9 KB
- react-best-practices/rules/client-swr-dedup.md 1.1 KB
- react-best-practices/rules/js-batch-dom-css.md 1.9 KB
- react-best-practices/rules/js-cache-function-results.md 1.9 KB
- react-best-practices/rules/js-cache-property-access.md 532 B
- react-best-practices/rules/js-cache-storage.md 1.6 KB
- react-best-practices/rules/js-combine-iterations.md 753 B
- react-best-practices/rules/js-early-exit.md 1.1 KB
- react-best-practices/rules/js-hoist-regexp.md 1.0 KB
- react-best-practices/rules/js-index-maps.md 837 B
- react-best-practices/rules/js-length-check-first.md 1.7 KB
- react-best-practices/rules/js-min-max-loop.md 2.1 KB
- react-best-practices/rules/js-set-map-lookups.md 532 B
- react-best-practices/rules/js-tosorted-immutable.md 1.7 KB
- react-best-practices/rules/rendering-activity.md 564 B
- react-best-practices/rules/rendering-animate-svg-wrapper.md 1.2 KB
- react-best-practices/rules/rendering-conditional-render.md 980 B
- react-best-practices/rules/rendering-content-visibility.md 815 B
- react-best-practices/rules/rendering-hoist-jsx.md 1.0 KB
- react-best-practices/rules/rendering-hydration-no-flicker.md 2.3 KB
- react-best-practices/rules/rendering-svg-precision.md 588 B
- react-best-practices/rules/rerender-defer-reads.md 973 B
- react-best-practices/rules/rerender-dependencies.md 824 B
- react-best-practices/rules/rerender-derived-state.md 724 B
- react-best-practices/rules/rerender-functional-setstate.md 2.9 KB
- react-best-practices/rules/rerender-lazy-state-init.md 2.0 KB
- react-best-practices/rules/rerender-memo.md 1.1 KB
- react-best-practices/rules/rerender-transitions.md 1.0 KB
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.
- 9d ago First seen · 88 lines · 77 tokens per session scan A 44560f8a13ba
frontend-design is a skill published in the GitHub repository heyAyushh/stacc (3 stars, last pushed 2mo ago), licensed MIT. It adds 77 tokens to every session and 1,488 once invoked, about $0.0004 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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