Agent skill

KrillinAI Subtitle Generator

Generates subtitles with the KrillinAI CLI from a YouTube link, Bilibili link or local video, with platform captions, Whisper fallback, translation and bilingual SRT output.

Apache-2.0Auto-check passedMedia & Creative

Install KrillinAI Subtitle Generator

skills CLI

$ npx skills add krillinai/OpenCreator --skill krillinai-subtitle -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI

$ gh skill install krillinai/OpenCreator krillinai-subtitle --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy

$ git clone --depth 1 https://github.com/krillinai/OpenCreator.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/krillinai-subtitle .claude/skills/krillinai-subtitle && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Paste into Claude Code

Install the "krillinai-subtitle" agent skill from https://github.com/krillinai/OpenCreator/tree/master/skills/krillinai-subtitle into .claude/skills/krillinai-subtitle/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "krillinai-subtitle", then confirm the skill loads.

Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

$skill-installer

$skill-installer install https://github.com/krillinai/OpenCreator/tree/master/skills/krillinai-subtitle

Type this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.

skills CLI

$ npx skills add krillinai/OpenCreator --skill krillinai-subtitle -a codex

Project install goes to .agents/skills/; add -g for ~/.codex/skills/.

GitHub CLI

$ gh skill install krillinai/OpenCreator krillinai-subtitle --agent codex

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/krillinai/OpenCreator.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/krillinai-subtitle .agents/skills/krillinai-subtitle && rm -rf skills-src

Use ~/.agents/skills/ instead of .agents/skills for a personal install.

Codex skills documentation · loads skills from .agents/skills/

Paste into Codex

Install the "krillinai-subtitle" agent skill from https://github.com/krillinai/OpenCreator/tree/master/skills/krillinai-subtitle into .agents/skills/krillinai-subtitle/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "krillinai-subtitle", then confirm the skill loads.

Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

skills CLI

$ npx skills add krillinai/OpenCreator --skill krillinai-subtitle -a cursor

Project install goes to .agents/skills/; add -g for ~/.cursor/skills/.

GitHub CLI

$ gh skill install krillinai/OpenCreator krillinai-subtitle --agent cursor

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/krillinai/OpenCreator.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/krillinai-subtitle .cursor/skills/krillinai-subtitle && rm -rf skills-src

Use ~/.cursor/skills/ instead of .cursor/skills for a personal install.

Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/

Paste into Cursor

Install the "krillinai-subtitle" agent skill from https://github.com/krillinai/OpenCreator/tree/master/skills/krillinai-subtitle into .cursor/skills/krillinai-subtitle/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "krillinai-subtitle", then confirm the skill loads.

Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

gemini skills install

$ gemini skills install https://github.com/krillinai/OpenCreator.git --path skills/krillinai-subtitle

--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.

skills CLI

$ npx skills add krillinai/OpenCreator --skill krillinai-subtitle -a gemini-cli

Project install goes to .agents/skills/; add -g for ~/.gemini/skills/.

GitHub CLI

$ gh skill install krillinai/OpenCreator krillinai-subtitle --agent gemini-cli

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/krillinai/OpenCreator.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/krillinai-subtitle .gemini/skills/krillinai-subtitle && rm -rf skills-src

Use ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.

Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/

Paste into Gemini CLI

Install the "krillinai-subtitle" agent skill from https://github.com/krillinai/OpenCreator/tree/master/skills/krillinai-subtitle into .gemini/skills/krillinai-subtitle/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "krillinai-subtitle", then confirm the skill loads.

Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

GitHub CLI

$ gh skill install krillinai/OpenCreator krillinai-subtitle

Installs for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).

skills CLI

$ npx skills add krillinai/OpenCreator --skill krillinai-subtitle -a github-copilot

Project install goes to .agents/skills/; add -g for ~/.copilot/skills/.

Manual copy

$ git clone --depth 1 https://github.com/krillinai/OpenCreator.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/krillinai-subtitle .github/skills/krillinai-subtitle && rm -rf skills-src

Use ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.

GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/

Paste into GitHub Copilot

Install the "krillinai-subtitle" agent skill from https://github.com/krillinai/OpenCreator/tree/master/skills/krillinai-subtitle into .github/skills/krillinai-subtitle/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "krillinai-subtitle", then confirm the skill loads.

GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

skills CLI

$ npx skills add krillinai/OpenCreator --skill krillinai-subtitle -a opencode

OpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.

GitHub CLI

$ gh skill install krillinai/OpenCreator krillinai-subtitle --agent opencode

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/krillinai/OpenCreator.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/krillinai-subtitle .opencode/skills/krillinai-subtitle && rm -rf skills-src

Use ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.

OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/

Paste into OpenCode

Install the "krillinai-subtitle" agent skill from https://github.com/krillinai/OpenCreator/tree/master/skills/krillinai-subtitle into .opencode/skills/krillinai-subtitle/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "krillinai-subtitle", then confirm the skill loads.

OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

Facts

Skill name: krillinai-subtitle
GitHub stars: 13k
Token cost: ~613 tokens
SKILL.md length: 209 words
Files: 1
Skills in repo: 8
Repo updated: Oct 11, 2026
First seen: Oct 7, 2026
Licence: Apache-2.0

At a glance

Generates subtitles with the KrillinAI CLI from a YouTube link, Bilibili link or local video, with platform captions, Whisper fallback, translation and bilingual SRT output.

Generating translated or bilingual subtitles for a YouTube video
SKILL.md covers Command, Inputs, Important Flags and Outputs, plus 1 more section
Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
Subtitling a local video file in another language

What it does

The skill runs the KrillinAI CLI's subtitle command on a YouTube URL, a local file given as local: plus an absolute path, or other links that yt-dlp supports, such as Bilibili. For YouTube it prefers platform captions and falls back to Whisper transcription, while other platforms may behave differently, so a transcription fallback is expected there. Flags set the source and target language, a working directory, the caption source, whether to prepare the original video, the bilingual layout and a subtitle-style override. A dry-run option validates the command without downloads or AI calls.

A real run writes krillinai_manifest.json and subtitle files: original-language, target-language and bilingual SRT, plus a short mixed-language SRT, with the original video and audio when preparation produced them. Verification means terminal JSON with ok set to true, a manifest under the working directory, a spot check of the bilingual ordering and the short subtitle readability, and a non-empty video when one was requested. The CLI contract lives in a separate reference file of the krillinai-cli skill.

When your agent uses it

Generating translated or bilingual subtitles for a YouTube video
Subtitling a local video file in another language
Producing short vertical-format subtitles from existing media

Example prompts

“Make Chinese subtitles for this English YouTube video with KrillinAI and give me the bilingual SRT.”
“Transcribe local:/home/me/clips/demo.mp4 and translate the subtitles into Japanese.”
“Dry-run the KrillinAI subtitle command for this Bilibili link before downloading anything.”

Requirements

The KrillinAI CLI
Network access for downloads and AI calls
yt-dlp for Bilibili and other supported links

What it can do on your machine

Read from SKILL.md and the folder at commit 837dbb4. It shows what the files ask for, not the result of running them.

Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
No scripts in the folder and no shell commands in SKILL.md (its code samples are bash).
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md.
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

KrillinAI Subtitle Generator loads about 613 tokens when it runs. Until then it costs about 62 tokens; SKILL.md has 209 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it: ~62
When it runs · the whole SKILL.md, loaded when a task matches: ~613

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from krillinai/OpenCreator at commit 837dbb4, republished under its Apache-2.0 licence (© krillinai). 209 words, ~613 tokens.

Download SKILL.mdSave it as .claude/skills/krillinai-subtitle/SKILL.md (or your agent's skills folder).

name: krillinai-subtitle
description: Use when generating subtitles with KrillinAI CLI from a YouTube link, Bilibili/local video, or existing media, including platform caption download, Whisper fallback, translation, bilingual SRT, and short vertical subtitle output.

KrillinAI Subtitle

Use this skill for the subtitle stage. Read skills/krillinai-cli/references/cli-contract.md first for binary location, execution working directory, configuration, and JSON behavior.

Command

bash

(cd "$KRILLINAI_CWD" && "$KRILLINAI_CLI" subtitle "<input>" \
  --origin-lang en \
  --target-lang zh_cn \
  --workdir "$WORKDIR" \
  --caption-source any \
  --prepare-video)

Inputs

YouTube URL: prefer --caption-source any; platform captions are used first, then Whisper fallback.
Local file: use local:/abs/path/video.mp4 or a path accepted by the CLI.
Bilibili or other yt-dlp supported links: use when media download works; platform caption behavior may differ, so expect transcription fallback.

Important Flags

Flag	Use
`--origin-lang`	Source language, such as `en`, `zh`, `ja`
`--target-lang`	Target language, such as `zh_cn`
`--workdir`	Dedicated task directory
`--caption-source any`	Prefer platform captions, fallback to transcription
`--caption-source whisper`	Force transcription
`--prepare-video`	Require the original video for later render stages
`--bilingual-top=true`	Put target language on top in bilingual SRT
`--subtitle-style-file`	Merge a JSON subtitle-style override
`--dry-run`	Validate without downloads or AI calls

Outputs

After a real run, read paths from krillinai_manifest.json. Main files:

origin_language_srt.srt
target_language_srt.srt
bilingual_srt.srt
short_origin_mixed_srt.srt
origin_video.mp4 when media preparation produced or required video
origin_audio.mp3 when transcription preparation produced audio

subtitle --dry-run validates command shape but does not write a manifest or output files.

Verification

Require terminal JSON with "ok": true.
Confirm krillinai_manifest.json exists under --workdir.
Spot-check bilingual_srt.srt ordering and short_origin_mixed_srt.srt readability.
When --prepare-video was requested, require a non-empty origin_video output.
For Agent integration details, read skills/krillinai-cli/references/cli-contract.md.

Files

Just SKILL.md in skills/krillinai-subtitle of krillinai/OpenCreator.

Open the folder on GitHubat commit 837dbb4

Compare with similar skills

KrillinAI Subtitle Generator next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

KrillinAI Subtitle Generator compared with similar skills
Skill	Stars	Used in	Tokens	Auto-check	Licence	Repo updated
KrillinAI Subtitle Generator this skillkrillinai/OpenCreator	13k	—	~613	Automated safety check: Pass	Apache-2.0	today
Video Clip Extractorlinzzzzzz/openclip	569	—	~2.8k	Automated safety check: Warn	MIT	1 mo ago
Youtube PublishAndonywang123/Epost	197	—	~3.4k	Automated safety check: Warn	None	1 mo ago
Video Transcribewendy7756/AI-Video-Transcriber	3.3k	—	~937	Automated safety check: Notes	Apache-2.0	26 days ago
Yt Dlp DownloaderMapleShaw/yt-dlp-downloader-skill	209	1 repos	~1.5k	Automated safety check: Pass	None	8 mo ago
Video To Subtitle Summaryimlewc/video-to-subtitle-summary-skill	218	—	~4.6k	Automated safety check: Notes	MIT	2 mo ago

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Questions about KrillinAI Subtitle Generator

What does KrillinAI Subtitle Generator do?

Generates subtitles with the KrillinAI CLI from a YouTube link, Bilibili link or local video, with platform captions, Whisper fallback, translation and bilingual SRT output. The skill runs the KrillinAI CLI's subtitle command on a YouTube URL, a local file given as local: plus an absolute path, or other links that yt-dlp supports, such as Bilibili. For YouTube it prefers platform captions and falls back to Whisper transcription, while other platforms may behave differently, so a transcription fallback is expected there.

When should I use KrillinAI Subtitle Generator?

KrillinAI Subtitle Generator fits situations like: generating translated or bilingual subtitles for a YouTube video; subtitling a local video file in another language; producing short vertical-format subtitles from existing media.

How do I install KrillinAI Subtitle Generator in Claude Code?

Run `npx skills add krillinai/OpenCreator --skill krillinai-subtitle -a claude-code`. Or copy the skill folder (skills/krillinai-subtitle in krillinai/OpenCreator) into .claude/skills/krillinai-subtitle in your project. Claude Code loads it when a task matches its description.

How do I install KrillinAI Subtitle Generator in Codex?

Run `npx skills add krillinai/OpenCreator --skill krillinai-subtitle -a codex`. Or copy the skill folder (skills/krillinai-subtitle in krillinai/OpenCreator) into .agents/skills/krillinai-subtitle in your project. Codex loads it when a task matches its description.

Can I use KrillinAI Subtitle Generator in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add krillinai/OpenCreator --skill krillinai-subtitle -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/krillinai-subtitle, .gemini/skills/krillinai-subtitle, .github/skills/krillinai-subtitle and .opencode/skills/krillinai-subtitle in your project.

What does KrillinAI Subtitle Generator need to run?

SKILL.md names no scripts, command-line tools or credentials: KrillinAI Subtitle Generator is instructions for the agent only. Our summary lists: The KrillinAI CLI; Network access for downloads and AI calls; yt-dlp for Bilibili and other supported links.

Does KrillinAI Subtitle Generator access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is KrillinAI Subtitle Generator safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does KrillinAI Subtitle Generator use?

KrillinAI Subtitle Generator is published under the Apache-2.0 licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does KrillinAI Subtitle Generator use?

About 613 tokens (SKILL.md is roughly 2.5k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to KrillinAI Subtitle Generator?

Skills that share tags, products or a category with KrillinAI Subtitle Generator: Video Clip Extractor (linzzzzzz/openclip, 569 stars), Youtube Publish (Andonywang123/Epost, 197 stars), Video Transcribe (wendy7756/AI-Video-Transcriber, 3.3k stars) and Yt Dlp Downloader (MapleShaw/yt-dlp-downloader-skill, 209 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains KrillinAI Subtitle Generator?

krillinai (a GitHub user) maintains it in krillinai/OpenCreator, which has 12,682 GitHub stars. The repository holds 8 skills in this directory. The repository was last updated on October 11, 2026.

Source: krillinai/OpenCreator on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.

KrillinAI Subtitle Generator

Install KrillinAI Subtitle Generator

Facts

At a glance

What it does

When your agent uses it

Example prompts

Requirements

What it can do on your machine

Tool permissions

Runs code

Network

Credentials

Context cost

Safety

SKILL.md

KrillinAI Subtitle

Command

Inputs

Important Flags

Outputs

Verification

Files

Compare with similar skills

Similar skills

Video Clip Extractor

Youtube Publish

Video Transcribe

Yt Dlp Downloader

Video To Subtitle Summary

Video To Notes

More from krillinai/OpenCreator

KrillinAI CLI Operator

KrillinAI Cover Image

KrillinAI Pipeline Planner

KrillinAI Render Vertical

KrillinAI Dubbing

KrillinAI Horizontal Video Renderer

Questions about KrillinAI Subtitle Generator

Install KrillinAI Subtitle Generator

Facts

At a glance

What it does

When your agent uses it

Example prompts

Requirements

What it can do on your machine

Tool permissions

Runs code

Network

Credentials

Context cost

Safety

SKILL.md

KrillinAI Subtitle

Command

Inputs

Important Flags

Outputs

Verification

Files

Compare with similar skills

Similar skills

More from krillinai/OpenCreator

Related

Questions about KrillinAI Subtitle Generator