About
Countdown validates implementation plans before coding begins by first generating a plan with Claude Opus and then reviewing it with multiple Haiku agents. Developers use it to catch issues early via a structured "Go Poll" where all review agents must approve. This ensures the team only starts implementation on a fully vetted and agreed-upon plan.
Quick Install
Claude Code
Recommendednpx skills add majiayu000/claude-skill-registry -a claude-code/plugin add https://github.com/majiayu000/claude-skill-registrygit clone https://github.com/majiayu000/claude-skill-registry.git ~/.claude/skills/countdownCopy and paste this command in Claude Code to install this skill
GitHub Repository
Frequently asked questions
What is the countdown skill?
countdown is a Claude Skill by majiayu000. Skills package instructions and resources that Claude loads on demand, so Claude can perform countdown-related tasks without extra prompting.
How do I install countdown?
Use the install commands on this page: add countdown to Claude Code as a plugin, or clone its repository into your skills directory, then restart Claude so it picks up the skill.
What category does countdown belong to?
countdown is in the Testing category, tagged ai.
Is countdown free to use?
Yes. countdown is listed on AIMCP and free to install. It runs inside Claude, so no separate service account is required to use the skill itself.
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