build-screen

build-screen is a skill for Claude Code, Codex from TOKTOKHAN-DEV/agent-company. It costs 2 tokens per session (698 once invoked), scanned A, original, MIT.

A workflow for implementing one specified app screen with Toss Design System components and adding it to the app's route list. It also requires empty, loading, and failure states, with a way to retry after failure.

In plain words
What is it for?
Use it to build a screen in a TypeScript React mini-app, apply the project's design system, handle its main states, and make the screen reachable through navigation.
Why use it?
It keeps screens tied to an existing specification and makes common states explicit instead of leaving them unfinished. A route is the URL or navigation path used to open a screen.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Needs its repository: it reads a path above its own folder, which exists only inside the repository. The line is import { navigate } from '../router.tsx';.

Good fit Use it to build a screen in a TypeScript React mini-app, apply the project's design system, handle its main states, and make the screen reachable through navigation.

Compare 6 skills from other repositories ↓
Install

Getting it into your agent

It runs from inside its repository, so the clone comes first — what it calls does not travel with the file alone.

Clone the repo
git clone --depth 1 https://github.com/TOKTOKHAN-DEV/agent-company
agentmods
npx agentmods add skills/toktokhan-dev/agent-company/build-screen

Made for: Claude Code, Codex.

Wrote 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.

agentmods badge for build-screen

README.md
[![agentmods](https://agentmods.dev/badge/skills/toktokhan-dev/agent-company/build-screen/github.svg)](https://agentmods.dev/skills/toktokhan-dev/agent-company/build-screen)
Your own site
<a href="https://agentmods.dev/skills/toktokhan-dev/agent-company/build-screen"><img src="https://agentmods.dev/badge/skills/toktokhan-dev/agent-company/build-screen/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.

agentmods 80×15 button for build-screen

Your own site · 80×15
<a href="https://agentmods.dev/skills/toktokhan-dev/agent-company/build-screen"><img src="https://agentmods.dev/badge/skills/toktokhan-dev/agent-company/build-screen.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 2 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 698 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00002 $0.00698
Opus 5 $0.00001 $0.00349
Sonnet 5 $0.00000 $0.00140
Haiku 4.5 $0.00000 $0.00070

Measured 9d ago against content hash 602f1e3b6e54, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

build-screen 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.

templates/app-in-toss/files/agents/ui-builder/skills/build-screen/SKILL.md · 90 lines

What it actually says

build-screen

1. 명세를 연다

ls specs/

만들 화면이 「화면」 표에 있는지, 「수용 기준」에 관련 항목이 있는지 확인한다. 없으면 만들지 않는다. spec-writer 가 먼저 필요하다고 보고한다.

2. 화면 파일을 만든다

apps/miniapp/src/screens/<Name>Screen.tsx.

import { Button, Text } from '@toss/tds-mobile';

import { navigate } from '../router.tsx';

export function <Name>Screen(): JSX.Element {
  return (
    <main style={{ padding: '24px 20px', display: 'flex', flexDirection: 'column', gap: 16 }}>
      {/* 제목 · 본문 · 액션 */}
    </main>
  );
}

레이아웃 여백 정도는 인라인 스타일로 두되, 색·타이포·컴포넌트는 TDS 를 쓴다. Texttypographycolor, Buttonsizestyle 을 쓰고 직접 색을 넣지 않는다.

3. 세 가지 상태를 만든다

빈 상태 · 로딩 · 실패. 명세에 적힌 문구를 그대로 쓴다.

if (isLoading) return <LoadingView />;
if (error != null) return <ErrorView onRetry={retry} />;
if (items.length === 0) return <EmptyView />;

실패 화면에는 재시도 수단이 있어야 한다. "오류가 발생했습니다" 만 띄우고 끝내지 않는다.

4. 라우트에 등록한다

apps/miniapp/src/App.tsxroutes 배열에 추가한다.

const routes: Route[] = [
  { path: '/', element: () => <HomeScreen /> },
  { path: '/<path>', element: () => <<Name>Screen /> },
];

첫 항목이 진입 화면이자 폴백이다. 순서를 바꾸지 않는다.

여러 ui-builder 가 동시에 돌고 있다면 이 파일에서 충돌한다. 라우트 등록만 한 명이 몰아서 하거나 순서를 정한다.

5. 이탈 경로를 확인한다

  • 하위 화면이면 → 홈으로 돌아가는 수단
  • 첫 화면이면 → Screen.close() 로 미니앱을 닫는 수단
import { closeMiniApp } from '../App.tsx';

완료 확인

pnpm typecheck
pnpm preflight

tds · light-only · no-eval 규칙에 걸리면 고치고 다시 돌린다.

출력

  • 만든 화면과 경로
  • 충족한 수용 기준 (명세의 체크박스 기준)
  • 사람이 눈으로 봐야 하는 것 (2초 반응, 실기기 레이아웃 등)
Changes

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.

  1. 9d ago First seen · 90 lines · 2 tokens per session scan A 602f1e3b6e54

Subscribe to this mod's changes

build-screen is a skill published in the GitHub repository TOKTOKHAN-DEV/agent-company (77 stars, last pushed 13d ago), licensed MIT. It adds 2 tokens to every session and 698 once invoked, about $0.0000 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 2026-08-30.

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