vibecut-add-subtitles

vibecut-add-subtitles is a skill for Claude Code from AX-Surfers/vibecut. It costs 102 tokens per session (2,816 once invoked), scanned B, original, MIT.

A tool that creates Korean subtitles from a video or adds them to an existing CapCut project. It transcribes speech with Whisper, splits the text at grammar boundaries, and applies the result to CapCut.

In plain words
What is it for?
Use it to create subtitles from an original video or add subtitles to an existing CapCut project.
Why use it?
It avoids manually transcribing speech, deciding where subtitles should break, and placing each subtitle in the project. It supports both new projects and already edited ones.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter. Also seen: names the AskUserQuestion tool.

Part of the vibecut plugin — 4 skills shipped together

Good fit Use it to create subtitles from an original video or add subtitles to an existing CapCut project.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/ax-surfers/vibecut/vibecut-add-subtitles
Install

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.

Any agent
npx skills add AX-Surfers/vibecut --skill vibecut-add-subtitles
Clone the repo
git clone --depth 1 https://github.com/AX-Surfers/vibecut

Made for: Claude Code.

Or install vibecut, the plugin that ships this one along with the rest of its 4 skills.

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 vibecut-add-subtitles

README.md
[![agentmods](https://agentmods.dev/badge/skills/ax-surfers/vibecut/vibecut-add-subtitles/github.svg)](https://agentmods.dev/skills/ax-surfers/vibecut/vibecut-add-subtitles)
Your own site
<a href="https://agentmods.dev/skills/ax-surfers/vibecut/vibecut-add-subtitles"><img src="https://agentmods.dev/badge/skills/ax-surfers/vibecut/vibecut-add-subtitles/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 vibecut-add-subtitles

Your own site · 80×15
<a href="https://agentmods.dev/skills/ax-surfers/vibecut/vibecut-add-subtitles"><img src="https://agentmods.dev/badge/skills/ax-surfers/vibecut/vibecut-add-subtitles.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 102 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,816 The whole file, excluding the scripts and references it only reads on demand.
Security scan B 2 findings. A grade says what 26 rules found in the file — not that it is safe.
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 $0.00102 $0.02816
Opus 5 $0.00051 $0.01408
Sonnet 5 $0.00020 $0.00563
Haiku 4.5 $0.00010 $0.00282

Measured 8d ago against content hash d862135b9fbe, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade B, and why

vibecut-add-subtitles scanned grade B with 2 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.

Reads agent configuration directoriesmediumAgent snooping

.claude/, .codex/, .gemini/ hold keys, settings and other credentials a mod has no legitimate need for.

SCRIPTS=$(find "${HOME}/.claude/plugins/cache/vibecut" -name "capcut_editor.py" -maxdepth 8 2>/dev/null | head -1 | xargs dirname 2>/dev/null)

Runs shell commandslowCapability

Expected in a hook, worth knowing in a rule or an instructions file.

p = subprocess.run(["ffmpeg", "-v", "error",
plugins/vibecut/skills/vibecut-add-subtitles/SKILL.md · 219 lines

How it starts

The opening of the file, as written. The whole thing — 219 lines — stays where its author put it; the contents beside it link to each section on GitHub.

vibecut-add-subtitles 스킬

모드 선택

상황 모드
원본 영상에서 처음 자막 생성 (새 CapCut 프로젝트) 모드 A
이미 편집된 CapCut 프로젝트에 자막 추가, 원본 {stem}_words.json 있음 모드 B (컷 매핑) — 기본
이미 편집된 프로젝트인데 원본 전사가 없음 (외부에서 편집) 모드 B 폴백 (재전사)

전제 조건 (모든 모드 공통)

VIBECUT_CONFIG="${HOME}/.vibecut/config.json"
SCRIPTS=""
if [ -f "${VIBECUT_CONFIG}" ]; then
  SCRIPTS=$(python3 -c "import json; print(json.load(open('${VIBECUT_CONFIG}')).get('scripts_dir',''))" 2>/dev/null)
fi
if [ -z "${SCRIPTS}" ]; then
  SCRIPTS=$(find "${HOME}/.claude/plugins/cache/vibecut" -name "capcut_editor.py" -maxdepth 8 2>/dev/null | head -1 | xargs dirname 2>/dev/null)
fi
if [ -z "${SCRIPTS}" ]; then
  APP_DIR="${HOME}/.vibecut/app"
  if [ -d "${APP_DIR}/.git" ]; then
    git -C "${APP_DIR}" pull --ff-only >/dev/null 2>&1
  else
    git clone --depth 1 https://github.com/AX-Surfers/Vibecut.git "${APP_DIR}" >/dev/null 2>&1
  fi
  [ -f "${APP_DIR}/scripts/capcut_editor.py" ] && SCRIPTS="${APP_DIR}/scripts"
fi
[ -z "${SCRIPTS}" ] && echo "❌ vibecut-setup 먼저 실행" && exit 1

uv run "${SCRIPTS}/_platform.py" quit-capcut
WHISPER_MODEL="large-v3-turbo"   # 질문 없이 고정. 사용자가 이번만 다른 모델을 말하면 그 값

⚠ 커뮤니티 한국어 fine-tune 모델은 기본으로 쓰지 않습니다 — 긴 오디오 대부분을 누락한 사례가 있습니다. 배경과 안전 절차는 vibecut-auto-edit 단계 1 참고.


모드 B: 기존 CapCut 프로젝트에 자막 추가 (컷 매핑, 기본)

{stem}_words.json + CapCut 컷 정보
  ├─ [1] 프로젝트·타임라인 확인 (find_project.py)
  ├─ [2] subtitles_from_cuts.py  → {stem}_subtitle_input.json  (자막 경계 == 컷 경계, 오인식 사전 적용)
  ├─ [3] subtitle-splitter 에이전트 → {stem}_subtitle_splits.json
  └─ [4] apply_subtitles.py       → 자막 트랙 추가, 다른 트랙 보존, 4개 JSON 갱신 + 백업

왜 재전사하지 않는가: 편집 오디오를 이어붙여 다시 전사하면 Whisper가 하드컷을 무시해 자막이 컷을 가로지르고 같은 문장이 두 번 나왔습니다. 컷은 원본 words.json의 경계로 만들어졌으므로 같은 단어 시각을 컷 매핑으로 옮기면 경계가 구조적으로 일치합니다.

단계 1: 프로젝트·타임라인

VIDEO="<원본 영상 경로>"; STEM="${VIDEO%.*}"
uv run "${SCRIPTS}/find_project.py" "${VIDEO}"     # <프로젝트>\t<타임라인 이름>\t<id>
PROJECT="<CapCut 프로젝트 경로>"
TIMELINE="<타임라인 이름 또는 빈 문자열>"
TL_OPT=(); [ -n "${TIMELINE}" ] && TL_OPT=(--timeline "${TIMELINE}")

Read the full file on GitHub · 219 lines

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. 8d ago Changed · -165 lines · +31 tokens per session d862135b9fbe
  2. 11d ago First seen · 384 lines · 71 tokens per session scan B 939f0fdcd162

Subscribe to this mod's changes

vibecut-add-subtitles is a skill published in the GitHub repository AX-Surfers/vibecut (2 stars, last pushed 8d ago), licensed MIT. It adds 102 tokens to every session and 2,816 once invoked, about $0.0005 per session on Opus 5. A static security scan graded it B with 2 findings (reads agent configuration directories, runs shell commands). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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