Borrowing it
Nothing to install: this file belongs to jigglypop/gaesup-world. 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/jigglypop/gaesup-world/master/.claude/skills/start-epoch/SKILL.mdgit clone --depth 1 https://github.com/jigglypop/gaesup-worldWrote 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/jigglypop/gaesup-world/start-epoch)<a href="https://agentmods.dev/skills/jigglypop/gaesup-world/start-epoch"><img src="https://agentmods.dev/badge/skills/jigglypop/gaesup-world/start-epoch/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/jigglypop/gaesup-world/start-epoch"><img src="https://agentmods.dev/badge/skills/jigglypop/gaesup-world/start-epoch.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 | $0.00037 | $0.00289 |
| Opus 5.5 | $0.00015 | $0.00116 |
| Sonnet 5.5 | $0.00007 | $0.00058 |
| Haiku 4.5 | $0.00004 | $0.00029 |
Grade A, and why
start-epoch 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 1mo 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
Start Epoch
먼저 판단: 이 작업이 architecture boundary·public API 계약·source of truth를 바꾸는가? 아니면 이 스킬을 쓰지 말고 바로 구현한다(.codex/context/engineering.md의 fast track).
epoch 작업이 맞으면:
.codex/plans/active/를 확인한다. 관련 plan이 있으면 그것을 따르고, 없으면.codex/plans/TEMPLATE.md(3섹션)를 채워active/epoch-<N>-<slice>.md를 만든다. epoch 번호와 결합 금지 규칙은.codex/context/migration.md.- 해당 영역 context만 로드한다: 공통
invariants.md+engineering.md, 영역별로architecture/world-model(구조·API),r3f10-webgpu/performance(렌더링·성능),asset-pipeline/networking(asset·network·save) 중 하나. - 구현한다. strangler: 가장 작은 boundary 하나만 이동, old/new 공존 시 canonical path 명시. 검증·완료 처리는
/close-epoch.
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.
- 1mo ago First seen · 15 lines · 37 tokens per session scan A 0227c9e38e25
start-epoch is a skill published in the GitHub repository jigglypop/gaesup-world (22 stars, last pushed 1mo ago), licensed MIT. It adds 37 tokens to every session and 289 once invoked, about $0.0001 per session on Opus 5.5. 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 2026-09-06.
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