omnicaptions-translate

omnicaptions-translate is a skill for Claude Code from lattifai/omni-captions-skills. It costs 35 tokens per session (2,208 once invoked), scanned A, original, MIT.

A tool for translating timed caption files, such as SRT, VTT, or ASS, into another language. It can also create bilingual captions containing both the original and translated text.

In plain words
What is it for?
Use it to translate subtitles or YouTube transcripts, create bilingual output, or produce context-aware translations.
Why use it?
It avoids translating caption lines without context and preserves their timing for video playback.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter.

Part of the omnicaptions plugin — 5 skills shipped together

Good fit Use it to translate subtitles or YouTube transcripts, create bilingual output, or produce context-aware translations.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/lattifai/omni-captions-skills/omnicaptions-translate
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 lattifai/omni-captions-skills --skill omnicaptions-translate
Clone the repo
git clone --depth 1 https://github.com/lattifai/omni-captions-skills

Made for: Claude Code.

Or install omnicaptions, the plugin that ships this one along with the rest of its 5 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 omnicaptions-translate

README.md
[![agentmods](https://agentmods.dev/badge/skills/lattifai/omni-captions-skills/omnicaptions-translate/github.svg)](https://agentmods.dev/skills/lattifai/omni-captions-skills/omnicaptions-translate)
Your own site
<a href="https://agentmods.dev/skills/lattifai/omni-captions-skills/omnicaptions-translate"><img src="https://agentmods.dev/badge/skills/lattifai/omni-captions-skills/omnicaptions-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 omnicaptions-translate

Your own site · 80×15
<a href="https://agentmods.dev/skills/lattifai/omni-captions-skills/omnicaptions-translate"><img src="https://agentmods.dev/badge/skills/lattifai/omni-captions-skills/omnicaptions-translate.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 35 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,208 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.
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 $0.00035 $0.02208
Opus 5 $0.00017 $0.01104
Sonnet 5 $0.00007 $0.00442
Haiku 4.5 $0.00003 $0.00221

Measured 12d ago against content hash cf6227e1241e, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

omnicaptions-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 12d 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/omnicaptions-translate/SKILL.md · 290 lines

How it starts

The opening of the file, as written. The whole thing — 290 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Caption Translation

Default: Claude native translation (no API key needed)

Use Gemini API only when user explicitly requests it.

Default Workflow (Claude)

  1. Read the caption file
  2. Translate using Claude's native ability
  3. Write output with _Claude_{lang} suffix

Gemini API (Optional)

Use CLI when user requests Gemini:

omnicaptions translate input.srt -l zh --bilingual

Output: input_Gemini_zh.srt

When to Use

  • Translate SRT/VTT/ASS to another language
  • Generate bilingual captions (original + translation)
  • Translate YouTube video transcripts
  • Need context-aware translation (not line-by-line)

When NOT to Use

  • Need transcription (use /omnicaptions:transcribe)
  • Just format conversion without translation (use /omnicaptions:convert)

Setup

pip install omni-captions-skills --extra-index-url https://lattifai.github.io/pypi/simple/

API Key

Priority: GEMINI_API_KEY env → .env file → ~/.config/omnicaptions/config.json

If not set, ask user: Please enter your Gemini API key (get from https://aistudio.google.com/apikey):

Then run with -k <key>. Key will be saved to config file automatically.

Context-Aware Translation

LLM-based translation is superior to traditional machine translation because it understands context across multiple lines:

Why Context Matters

Approach Problem Result
Line-by-line No context Robotic, disconnected translations
Batch + Context Sees surrounding lines Natural, coherent dialogue

How It Works

┌─────────────────────────────────────────┐
│  Batch size: 30 lines                   │
│  Context: 5 lines before/after          │
├─────────────────────────────────────────┤
│  [5 previous lines] → context           │
│  [30 current lines] → translate         │
│  [5 next lines]     → preview           │
└─────────────────────────────────────────┘

Benefits:

  • Speaker continuity - maintains character voice
  • Split sentences - handles dialogue spanning multiple lines
  • Idioms & culture - adapts cultural references naturally
  • Pronoun resolution - correct he/she/they based on context

Read the full file on GitHub · 290 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. 12d ago First seen · 290 lines · 35 tokens per session scan A cf6227e1241e

Subscribe to this mod's changes

omnicaptions-translate is a skill published in the GitHub repository lattifai/omni-captions-skills (22 stars, last pushed 5mo ago), licensed MIT. It adds 35 tokens to every session and 2,208 once invoked, about $0.0002 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 2026-08-30.

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