What problem does it solve? Building a small game from a plain-English idea usually produces non-reproducible results and untested AI behavior. This Skill turns a description into a single self-contained HTML arena game whose matches are fully deterministic and reproducible from a seed, so results can be verified, replayed, and shared. ## Core Features & Use Cases - Seeded deterministic gameplay: Derives a seeded PRNG from the seed string with named sub-streams for map layout, move rolls, and AI policy, so the same seed always replays the same match. - Live seed browsing: Reads the ?seed= query param and provides a re-seed input plus play/step controls so matches can be previewed and rewound in a web viewer. - Verification workflow: Runs seed censuses (e.g. 0–99) via node tools/check.mjs --seeds 100 to reject stuck AI, deadlocks, or infinite matches, and records status in .harness/verdict.json. - Use Case: Ask for "a capture-the-flag duel between two AIs" and receive a game/index.html you can open with any seed, watch end-to-end, and re-run identically. ## Quick Start Ask the agent to build a seeded AI-vs-AI arena game from your description, for example: create a turn-based capture duel between two AIs as a single HTML file with seed 42.
