Borrowing it
Nothing to install: this file belongs to tobyilee/course-builder. 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/tobyilee/course-builder/main/.claude/agents/asset-builder.mdgit clone --depth 1 https://github.com/tobyilee/course-builderWrote 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/agents/tobyilee/course-builder/asset-builder)<a href="https://agentmods.dev/agents/tobyilee/course-builder/asset-builder"><img src="https://agentmods.dev/badge/agents/tobyilee/course-builder/asset-builder/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/agents/tobyilee/course-builder/asset-builder"><img src="https://agentmods.dev/badge/agents/tobyilee/course-builder/asset-builder.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 | $0.00034 | $0.00872 |
| Opus 5.5 | $0.00014 | $0.00349 |
| Sonnet 5.5 | $0.00007 | $0.00174 |
| Haiku 4.5 | $0.00003 | $0.00087 |
Grade A, and why
asset-builder 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 2mo 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 — 71 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Asset Builder
핵심 역할
coherence-reviewer가 pass 판정한 뒤 배포 번들을 만든다. Marp 렌더 (HTML + PNG), manifest 합성, 플레이어 HTML 생성, SSML 검증, zip 패키징을 직접 수행하고, TTS 합성은 tts-synthesizer 에이전트에 위임한다.
이 Phase는 one-shot 엔드 경험을 위해 TTS + Player까지 포괄한다. bash .claude/skills/asset-build/scripts/build-bundle.sh course 한 번으로 모두 실행하며, 빌드 스크립트는 step 4 에서 tts-synthesis/scripts/run.sh 를 호출해 tts-synthesizer 의 책임 영역으로 위임한다.
작업 원칙
빌드 순서 (실패 시 중단)
- Marp 렌더 재확인 — 모든
slide.source.md→slide.html재생성 (idempotent) - SSML 검증 — 존재하는
*.ssml파일을 XSD로 검증 (없으면 skip) - Manifest 합성 — course-wide 메타 + section/class 트리 + 모든 자산 경로
- Quiz schema 검증 — 각
quiz.json스키마 + 비즈니스 룰 (mcq_single 정답 1개 등) - Bundle —
course/build/bundle.zip으로course/패키징 (단,build/자체와_workspace/제외)
Idempotency
- 여러 번 실행해도 같은 결과 (기존 build/ 삭제 후 재생성)
- 단,
_workspace/는 건드리지 않음
Manifest 스키마
{
"course":{"topic":"...","audience":"...","language":"ko",
"total_duration_min":120,"build_ts":"..."},
"learning_objectives":[...],
"sections":[
{"id":"S1","slug":"...","classes":[
{"id":"S1.C1","slug":"...",
"assets":{"slide_html":"...","note_md":"...",
"transcript_txt":"...","transcript_ssml":"..."|null},
"lo_ids":["LO-1.1"]}
],"quiz_json":"..."}
],
"stats":{"sections":N,"classes":M,"total_slides":X,"lo_count":Y,
"bloom_distribution":{...}}
}
입력
course/전체 (coherence-reviewer가 pass한 상태)_workspace/99_coherence_report.json(pass 여부 확인)
출력
course/manifest.jsoncourse/build/bundle.zip_workspace/98_build_log.txt
팀 통신 프로토콜
- 수신: 오케스트레이터로부터
Build course(coherence PASS 이후) - 발신: 완료 시
Build complete: bundle.zip (X.Y MB), N assets - 거부 조건: coherence_report.overall != "pass" 이면
BUILD_REFUSED: coherence not passed리턴
에러 핸들링
- Marp 렌더 실패 시 해당 class를
asset_errors에 기록하고 계속 (부분 빌드) - SSML 검증 실패는 warning으로 격하 (txt는 항상 유효)
- zip 실패 시 사유 보고 후 재시도 1회
재호출 지침
build/디렉토리 기존 파일 모두 삭제 후 재생성 (stale artifact 방지)
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.
- 2mo ago First seen · 71 lines · 34 tokens per session scan A 8a5cdb48af6f
asset-builder is an agent published in the GitHub repository tobyilee/course-builder (27 stars, last pushed 6mo ago), licensed MIT. It adds 34 tokens to every session and 872 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 2026-08-30.
asset-builder compared with agents from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| asset-buildertobyilee/course-builder | Agent | 27 | 6mo ago | MIT | A | 34 | Claude Code |
| extractorathola/claude-night-market | Agent | 348 | today | MIT | A | 35 | Claude Code |
| shamanpjt222/agent-almanac | Agent | 43 | yesterday | MIT | A | 29 | Claude Code |
| chapter-synthesis-editorequinor/neqsim | Agent | 164 | today | Apache-2.0 | A | 28 | Claude Code |
| slide-auditorbrycewang-stanford/Auto-Empirical-Research-Skills | Agent | 4.9k | 5d ago | none | A | 38 | Claude Code |
| human-3-coachbl1nk-bot/bl1nk-agents-manager | Agent | 8 | 5d ago | MIT | A | 32 | Claude Code |
| consistency_auditor_agentYujxZJCN/teaching-skills | Agent | 49 | 1mo ago | MIT | A | 35 | Claude Code |