subtitle-translate

subtitle-translate is a skill for Claude Code, Codex from ZJU-REAL/Easel. It costs 168 tokens per session (1,547 once invoked), scanned A, original, Apache-2.0.

A subtitle translation tool for existing SRT, VTT, or ASS files. It can create translated or bilingual subtitles and optionally attach them to a video or burn them into the picture.

In plain words
What is it for?
Translate subtitles into another language, produce bilingual captions, or add the translated subtitles to a video.
Why use it?
It removes the need to translate subtitle lines manually while preserving their timing and file format.

Skill for Claude CodeCodex

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

Needs its repository: it runs a file that does not travel with it, so clone the repository first. The line is python skills/shared/scripts/subtitle_ops.py extract -i <字幕> -o /tmp/st_lines.txt.

Good fit Translate subtitles into another language, produce bilingual captions, or add the translated subtitles to a video.

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/ZJU-REAL/Easel
agentmods
npx agentmods add skills/zju-real/easel/subtitle-translate

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 subtitle-translate

README.md
[![agentmods](https://agentmods.dev/badge/skills/zju-real/easel/subtitle-translate/github.svg)](https://agentmods.dev/skills/zju-real/easel/subtitle-translate)
Your own site
<a href="https://agentmods.dev/skills/zju-real/easel/subtitle-translate"><img src="https://agentmods.dev/badge/skills/zju-real/easel/subtitle-translate/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 subtitle-translate

Your own site · 80×15
<a href="https://agentmods.dev/skills/zju-real/easel/subtitle-translate"><img src="https://agentmods.dev/badge/skills/zju-real/easel/subtitle-translate.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 168 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,547 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 $0.00168 $0.01547
Opus 5 $0.00084 $0.00773
Sonnet 5 $0.00034 $0.00309
Haiku 4.5 $0.00017 $0.00155

Measured 7d ago against content hash 9e19d8a44da3, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

subtitle-translate 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 7d 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.

skills/openclaw/subtitle-translate/SKILL.md · 97 lines

How it starts

The opening of the file, as written. The whole thing — 97 lines — stays where its author put it; the contents beside it link to each section on GitHub.

字幕翻译 / 双语字幕

把已有字幕翻译成目标语言,产出双语(原文+译文)或纯译文字幕,可选烧录进视频。 翻译交给 LLM(你自己),确定性部分(解析/合并/格式/时间轴/烧录)全交给 skills/shared/scripts/subtitle_ops.py不要手拼 ffmpeg,也不要手改时间轴。

只做"已有字幕 → 翻译/双语/烧录"。语音识别生成字幕见 auto-subtitle; 通用视频剪辑见 video-editing

输入

字段 必填 说明
字幕文件 .srt / .vtt / .ass 路径(没给就问)
目标语言 译成什么语言(如中文 / English / 日本語)
输出形态 双语(默认)/ 纯译文
原译顺序 双语时原文在上(默认)或译文在上
视频文件 给了则可烧录;软挂载(可开关)或硬烧录(烧进画面)

输出(outputs/主题名/

  • 双语 / 纯译文字幕文件(.srt.ass
  • 若烧录:带字幕的视频(*-sub.mp4
  • 报告:条数、目标语言、形态、输出路径

执行步骤

脚本路径(相对项目根):skills/shared/scripts/subtitle_ops.py(每个子命令支持 -h)。

1. 提取待译文本

python skills/shared/scripts/subtitle_ops.py extract -i <字幕> -o /tmp/st_lines.txt

每条字幕一行、行号与顺序固定。记住总行数 N。

2. 逐行翻译(你来做)

/tmp/st_lines.txt,逐行翻译成目标语言,写入 /tmp/st_trans.txt

  • 行数必须严格等于 N,顺序一一对应,不增删空行、不合并、不拆行(脚本会校验,不一致直接报错)。
  • 一行内如原文有多句,整合成一行译文,不要拆成多行。
  • 语气/术语按内容领域走;口语内容译得自然口语,书面内容译得书面。
  • 空行原文对应空行译文(保持占位)。

3. 合并成双语 / 纯译文字幕

# 双语 SRT(原文在上,译文在下)
python skills/shared/scripts/subtitle_ops.py merge -i <字幕> --trans /tmp/st_trans.txt \
  -o outputs/主题名/<名>-bilingual.srt

# 双语 ASS(原文白色较大 / 译文黄色略小,样式更佳,推荐用于硬烧录)
python skills/shared/scripts/subtitle_ops.py merge -i <字幕> --trans /tmp/st_trans.txt \
  -o outputs/主题名/<名>-bilingual.ass --format ass

# 纯译文(不保留原文)
python skills/shared/scripts/subtitle_ops.py merge -i <字幕> --trans /tmp/st_trans.txt \
  -o outputs/主题名/<名>-<lang>.srt --trans-only

--order trans-top 可让译文在上。

4.(可选)烧录进视频

# 硬烧录(烧进画面,推荐用 .ass 保留双语样式)
python skills/shared/scripts/subtitle_ops.py burn -i <视频> \
  --sub outputs/主题名/<名>-bilingual.ass \
  -o outputs/主题名/<名>-sub.mp4

# 软挂载(可在播放器开关,不改画面;mp4→mov_text,mkv→srt)
python skills/shared/scripts/subtitle_ops.py burn -i <视频> \
  --sub outputs/主题名/<名>-bilingual.srt \
  -o outputs/主题名/<名>-sub.mp4 --soft

其它子命令

  • parse -i <字幕> [-o out.json] — 解析成 JSON(含时间轴),供程序化处理或核对。
  • build --json <cues.json> -o <字幕> — 从 JSON(cue 带 text 与可选 trans)构建,适合批量/整段翻译回填。
  • convert -i a.srt -o b.vtt — 格式互转(srt ↔ vtt ↔ ass)。

Read the full file on GitHub · 97 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. 7d ago First seen · 97 lines · 168 tokens per session scan A 9e19d8a44da3

Subscribe to this mod's changes

subtitle-translate is a skill published in the GitHub repository ZJU-REAL/Easel (710 stars, last pushed yesterday), licensed Apache-2.0. It adds 168 tokens to every session and 1,547 once invoked, about $0.0008 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 2026-09-03.