Borrowing it
Nothing to install: this file belongs to greatSumini/cc-system. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/greatSumini/cc-system/main/.claude/skills/plan-and-build/SKILL.mdgit clone --depth 1 https://github.com/greatSumini/cc-systemWrote 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/greatsumini/cc-system/plan-and-build)<a href="https://agentmods.dev/skills/greatsumini/cc-system/plan-and-build"><img src="https://agentmods.dev/badge/skills/greatsumini/cc-system/plan-and-build.svg" alt="Measured on agentmods" 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 | $0.00000 | $0.00489 |
| Opus 5 | $0.00000 | $0.00244 |
| Sonnet 5 | $0.00000 | $0.00098 |
| Haiku 4.5 | $0.00000 | $0.00049 |
Grade A, and why
plan-and-build 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 8d 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
$ARGUMENTS
위 요구사항에 대해, 다음 과정에 따라 작업 논의 및 구현을 진행하자. 모든 작업은 신규 브랜치를 만들지 않고 main 브랜치에서 직접 수행한다.
- 먼저
/docs/하위 경로의 문서들을 적절히 읽어 현재 아키텍쳐, 설계의도를 파악한다. 필요시 여러 Explore 에이전트를 병렬로 사용한다. 아직 docs에 문서가 없다면 이 단계는 넘어간다. - 이번 작업을 구현하기위해 더 구체화해야할 점, 기술적으로 논의해야할 점들을 tech-critic-lead에게 제시한 후 논의를 이어간다.
- tech-critic-lead가 충분히 논의했다고 판단하는 응답을 보내면, 구현계획 작성을 시작한다. 가장 먼저
/prompts/task-create.md파일의 내용을 정확히 숙지한다. 이후 해당 방식으로 생성하기위한 구현 계획을 여러 phase로 나뉜 초안으로 작성하고, 논의점까지 포함하여 tech-critic-lead에게 피드백을 요청한다. - 구현계획이 확정되었다면, 마지막으로 어떤 테스트케이스가 필요할지 논의한다. 테스트 전략은
/docs/testing.md를 참고한다. 추가/수정해야할 모듈별 테스트케이스와, 논의점을 포함하여 tech-critic-lead에게 피드백을 요청한다. - tech-critic-lead가 충분히 논의했다고 판단 후 task 생성을 지시하면,
/prompts/task-create.md의 형식과 절차에 맞게 task와 phase 파일들을 생성한다. scripts/run-phases.py를 실행해서 각 phase를 순차적으로 실행한다.
- 절대 사용자에게 의견을 묻지 말 것. 모든 논의는 tech-critic-lead와 내부적으로 진행한다.
- 모든 구현은 local에서 cli만으로 가능해야한다. 웹에서 해야할 작업이 있다면, 어떻게 cli로 대체할 수 있을지 최대한 고민한다.
- 프로덕션 배포를 위해 불가피하게 사용자 개입이 필요한 지점이 있다면,
/docs/user-intervention.md에 명확히 기록해 추후 사용자가 직접 intervention을 수행할 수 있도록 한다.
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.
- 8d ago First seen · 15 lines · 0 tokens per session scan A b9e3f32a705f
plan-and-build is a skill published in the GitHub repository greatSumini/cc-system (436 stars, last pushed 3mo ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 489 tokens. 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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