yt2bb

yt2bb is a skill for Claude Code from Agents365-ai/365-skills. It costs 43 tokens per session (6,073 once invoked), scanned C, original, no licence file.

A video-subtitle tool for adapting YouTube videos for Bilibili, a Chinese video platform. It can create English-Chinese subtitles and hardcoded subtitle versions for Chinese platforms.

In plain words
What is it for?
It helps repurpose YouTube videos for Bilibili, add bilingual subtitles, and create videos with subtitles permanently rendered into the image.
Why use it?
It addresses the work of translating and preparing video captions for a different language and publishing platform.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter.

Good fit It helps repurpose YouTube videos for Bilibili, add bilingual subtitles, and create videos with subtitles permanently rendered into the image.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/agents365-ai/365-skills/yt2bb
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 Agents365-ai/365-skills --skill yt2bb
Clone the repo
git clone --depth 1 https://github.com/Agents365-ai/365-skills

Made for: Claude Code.

Its marketplace also offers this one on its own, as the plugin yt2bb/plugin install yt2bb after adding the marketplace above.

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 yt2bb

README.md
[![agentmods](https://agentmods.dev/badge/skills/agents365-ai/365-skills/yt2bb/github.svg)](https://agentmods.dev/skills/agents365-ai/365-skills/yt2bb)
Your own site
<a href="https://agentmods.dev/skills/agents365-ai/365-skills/yt2bb"><img src="https://agentmods.dev/badge/skills/agents365-ai/365-skills/yt2bb/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 yt2bb

Your own site · 80×15
<a href="https://agentmods.dev/skills/agents365-ai/365-skills/yt2bb"><img src="https://agentmods.dev/badge/skills/agents365-ai/365-skills/yt2bb.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 43 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 6,073 The whole file, excluding the scripts and references it only reads on demand.
Security scan C 2 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin unknown 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 $0.00043 $0.06073
Opus 5 $0.00022 $0.03037
Sonnet 5 $0.00009 $0.01215
Haiku 4.5 $0.00004 $0.00607

Measured 5d ago against content hash e58791edf2e1, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade C, and why

yt2bb scanned grade C 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 5d ago.

The scan reads SKILL.md. This mod also ships 1 executable file (srt_utils.py), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

Asks for rootmediumPrivilege escalation

A mod that escalates privileges can change anything on the machine, not only the project.

| Linux | `Noto Sans CJK SC` | `sudo apt install fonts-noto-cjk` |

Enumerates other installed skillsmediumAgent snooping

Other skills' SKILL.md files reveal prompts, capabilities and secrets that should be invisible to peers.

SKILL_DIR="$(find ~/.claude/skills ~/.openclaw/skills ~/.hermes/skills ~/.pi/agent/skills ~/.agents/skills ~/myagents/myskills -type d -name 'yt2bb' -exec test -f '{}/SKILL.md' \; -print 2>/dev/null | head -1)"
plugins/yt2bb/skills/yt2bb/SKILL.md · 404 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

Files

What ships with it

1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 5d ago First seen · 404 lines · 43 tokens per session scan C e58791edf2e1

Subscribe to this mod's changes

yt2bb is a skill published in the GitHub repository Agents365-ai/365-skills (44 stars, last pushed yesterday), with no licence file. It adds 43 tokens to every session and 6,073 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it C with 2 findings (asks for root, enumerates other installed skills). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-05.

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