@flayerlabs/gamemode-cli

Create a playable Flaunch Game Mode and check that its rules use deterministic inputs.

Requirements

You need Node.js 20 or later and pnpm.

Create a game

Run:

pnpm dlx @flayerlabs/gamemode-cli new my-game
cd my-game
pnpm install
pnpm dev

The command creates a working number game. It includes:

• server-authoritative rules in src/game/rules.ts
• a browser game that uses the offline room
• rule tests and a deterministic rules check
• an AGENTS.md file with the rules an agent must follow
• a $build-game-mode repository skill for supported agents

The offline room runs the real rules without a gate, chain or wallet. The scaffold does not create a live gate or trusted wallet integration.

Check an existing rules file

Install the CLI in the game project, then run the check:

pnpm add --save-dev @flayerlabs/gamemode-cli
pnpm exec gamemode check src/game/rules.ts

The check rejects known uses of clocks, random values, network access and system access. It also rejects top-level let and var declarations. Run the project's tests and type check as well.

Build a secure game

Use the repository guidance to continue:

• build a Game Mode
• read the generated-game agent rules
• compare the quiz and arrow examples
• review the Game Mode SDK repository