Validate an AtCoder contest for users who newly reached a rating milestone, and report
blog listing candidates. Both Algorithm and Heuristic divisions are covered.
1---2name: kato-hiro-atcoderclans-atcoderclans3description: Overview4---56## Overview78Validate an AtCoder contest for users who newly reached a rating milestone, and report9blog listing candidates. Both Algorithm and Heuristic divisions are covered.1011## Input1213```14/milestone-check <contest_id>15```1617Examples: `/milestone-check abc399`, `/milestone-check ahc040`1819## Process2021Read `.claude/skills/milestone-check/instructions.md` and follow Steps 1–5 in order.2223---24> Source: [KATO-Hiro/AtCoderClans](https://github.com/KATO-Hiro/AtCoderClans) — distributed by [TomeVault](https://tomevault.io).25<!-- tomevault:4.0:skill_md:2026-06-29 -->
Run npx skillmds@latest add tomevault-io/kato-hiro-atcoderclans-atcoderclans in your terminal (requires Node.js), paste this page's agent-chat prompt into Claude, Cursor, or any MCP-connected agent, or download the SKILL.md file and copy it into your agent's skills directory.
Overview It is listed under Coding & Dev Tools on SkillMD.
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tomevault-io (@tomevault-io) published this skill. Their other Agent Skills are listed on their SkillMD profile.