Agent skill

Youtube Viral Topic

by kangarooking in kangarooking/kangarooking-skills

Find recent viral YouTube videos for account-growth topic selection.

No licenceAuto-check passed

Install Youtube Viral Topic

skills CLI
$ npx skills add kangarooking/kangarooking-skills --skill youtube-viral-topic -a claude-code

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

GitHub CLI
$ gh skill install kangarooking/kangarooking-skills youtube-viral-topic --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/kangarooking/kangarooking-skills.git skills-src && mkdir -p .claude/skills && cp -r skills-src/viral-topic/youtube-viral-topic .claude/skills/youtube-viral-topic && 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/

Facts

Skill name
youtube-viral-topic
GitHub stars
662
Token cost
~708 tokens
SKILL.md length
271 words
Files
5 (incl. scripts, references)
Skills in repo
19
Repo updated
First seen
Licence
None found

At a glance

Find recent viral YouTube videos for account-growth topic selection.

  • Works in 8 steps: Convert the user's niche into concise… → Call YouTube search.list with… → Deduplicate video ids across queries. → …
  • The user asks for YouTube 爆款
  • SKILL.md covers Quick Start, Workflow, Output Contract and Guardrails
  • Runs Python scripts from its folder; calls python3; needs YOUTUBE_API_KEY

What it does

Youtube Viral Topic is an agent skill from kangarooking/kangarooking-skills. Find recent viral YouTube videos for account-growth topic selection. Use when the user asks for YouTube 爆款, YouTube hot videos, 起号选题 from YouTube, niche video references, recent high-view videos, or videos ranked by views, likes, comments, freshness, and topic relevance without low-follower filtering.

Its SKILL.md is about 710 tokens, which your agent loads only when the skill is triggered. The skill folder holds 7 other files, including scripts and reference files (for example `agents/openai.yaml`, `references/querying.md` and `references/scoring.md`).

It works with YouTube. The repository describes itself as: My custom AI Agent skills.

When your agent uses it

  • The user asks for YouTube 爆款
  • YouTube hot videos
  • 起号选题 from YouTube
  • Niche video references

Example prompts

  • “/youtube-viral-topic”

Requirements

  • Python 3
  • A credential in YOUTUBE_API_KEY

Workflow steps

8 steps, taken from the first numbered list in SKILL.md.

  1. Convert the user's niche into concise query clusters.
  2. Call YouTube search.list with type=video, order=viewCount, and publishedAfter for the requested recent window.
  3. Deduplicate video ids across queries.
  4. Batch-enrich videos through videos.list for statistics and metadata.
  5. Batch-enrich channels through channels.list for public subscriber counts.
  6. Filter only by viral strength
  7. Rank by viral_score, then view_count, then like_view_rate.
  8. Return JSON for automation or Markdown for human topic review.

What it can do on your machine

Read from SKILL.md and the folder at commit 08bbee0. 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

    Ships 1 file in scripts/ (Python), which the agent can run.

    Shell commands in SKILL.md call:

    • python3

    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 these keys or tokens, usually read from environment variables:

    • YOUTUBE_API_KEY

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Youtube Viral Topic loads about 708 tokens when it runs, and up to ~1.3k if it reads all its reference files. Until then it costs about 81 tokens; SKILL.md has 271 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~81
When it runs · the whole SKILL.md, loaded when a task matches
~708
With references · SKILL.md plus every file in references/, read only if the agent opens them
~1.3k

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); the scripts in this folder are not scanned.

SKILL.md

Without a licence we can't republish the file, so here is its outline and opening line. It has 271 words (~708 tokens).

“Use this skill to find recent YouTube videos that are already performing strongly in a niche. Do not make low-subscriber status the default logic.”

— opening of SKILL.md by kangarooking
name
youtube-viral-topic

Read the full SKILL.md on GitHub

Files

SKILL.md and 4 other files (scripts, references) in viral-topic/youtube-viral-topic of kangarooking/kangarooking-skills.

  • SKILL.md
  • agents/openai.yaml
  • references/querying.md
  • references/scoring.md
  • scripts/search_youtube_viral_topic.py

Open the folder on GitHubat commit 08bbee0

Compare with similar skills

Youtube Viral Topic 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.

Youtube Viral Topic compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Youtube Viral Topic this skillkangarooking/kangarooking-skills662—~708Automated safety check: PassNone
MarkitdownImCa0/just-laws78114 repos~3.2kAutomated safety check: NotesMIT
Banner Design Systemnextlevelbuilder/ui-ux-pro-max-skill134k1 repos~1.8kAutomated safety check: PassMIT
Agent ReachPanniantong/Agent-Reach95k—~1.4kAutomated safety check: PassMIT
Last30daysmvanhorn/last30days-skill64k—~7.9kAutomated safety check: NotesMIT
Baoyu URL To Markdownsdyckjq-lab/llm-wiki-skill2.5k2 repos~3.2kAutomated safety check: PassNone

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Works with

Questions about Youtube Viral Topic

What does Youtube Viral Topic do?

Find recent viral YouTube videos for account-growth topic selection. Youtube Viral Topic is an agent skill from kangarooking/kangarooking-skills. Find recent viral YouTube videos for account-growth topic selection.

When should I use Youtube Viral Topic?

Youtube Viral Topic fits situations like: the user asks for YouTube 爆款; youTube hot videos; 起号选题 from YouTube; niche video references.

How do I install Youtube Viral Topic in Claude Code?

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

How do I install Youtube Viral Topic in Codex?

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

Can I use Youtube Viral Topic 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 kangarooking/kangarooking-skills --skill youtube-viral-topic -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/youtube-viral-topic, .gemini/skills/youtube-viral-topic, .github/skills/youtube-viral-topic and .opencode/skills/youtube-viral-topic in your project.

What does Youtube Viral Topic need to run?

Going by SKILL.md and its folder, Youtube Viral Topic needs Python for the scripts in its folder, the command-line tools its instructions call (python3) and credentials named YOUTUBE_API_KEY. Our summary lists: Python 3; A credential in YOUTUBE_API_KEY.

Does Youtube Viral Topic 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 Youtube Viral Topic 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. The check reads SKILL.md only: the scripts in the folder are not scanned, so read them before running anything.

What licence does Youtube Viral Topic use?

No licence was found for Youtube Viral Topic or its repository. Without one, default copyright applies: ask the author before reusing or redistributing it.

How many tokens does Youtube Viral Topic use?

About 708 tokens (SKILL.md is roughly 2.8k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 634 tokens, read only when the agent opens those files.

What are the alternatives to Youtube Viral Topic?

Skills that share tags, products or a category with Youtube Viral Topic: Markitdown (ImCa0/just-laws, 781 stars), Banner Design System (nextlevelbuilder/ui-ux-pro-max-skill, 134k stars), Agent Reach (Panniantong/Agent-Reach, 95k stars) and Last30days (mvanhorn/last30days-skill, 64k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Youtube Viral Topic?

kangarooking (a GitHub user) maintains it in kangarooking/kangarooking-skills, which has 662 GitHub stars. The repository holds 19 skills in this directory. The repository was last updated on September 7, 2026.

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