League life

League Constitution Writer

A clear rulebook from your settings, with common rule fixes.

$5
Buy, $5

One-time purchase. Download link by email in about a minute. 14-day refund.

Also included in the Front Office Pass: every skill for $29 a year.

What it does

Use it to write or update a clear, complete fantasy league constitution (rulebook) for any sport, covering league structure, scoring, rosters, waivers, trades and vetoes, deadlines, playoffs and tiebreakers, keepers and dynasty rules, dues and payouts, activity rules, conduct, disputes, and how rules get changed.

Try it now

After you install, paste one of these into Claude.

  • Write up our league rules.
  • We need bylaws.
  • Turn these settings into a rulebook.
  • Add a rule about tanking.

How it works

A skill is a set of expert instructions Claude loads whenever you ask about your team. It pins down your league's exact rules first, checks current news when it can, then makes the call.

Install in a minute

  1. Download the ZIP from the link in your email. Don't unzip it: Claude wants the ZIP as it is.
  2. Open Skills in Claude. On claude.ai or the desktop app, open Customize, then Skills. On some versions it's under Settings, Capabilities, Skills.
  3. Upload it. Click +, choose Create skill, then Upload a skill, and pick the ZIP. One ZIP per upload.
  4. Check it's on. The skill should show as enabled. Skills work on any Claude plan, including the free one. Just turn on code execution in Settings, Capabilities.
  5. Start a new chat and ask about your team, for example "Help me set my lineup this week." Claude loads the skill on its own when it's relevant.

Full guide, Claude Code steps and troubleshooting: Install guide.

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Specific, friendly roasts built from your league's real material.

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Safe, memorable punishments sized to your league.

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