Build games in small steps and validate every change. Treat each iteration as: implement → act → pause → observe → adjust.
Installed skills resolve from $LOBSTERAISKILLSROOT / $SKILLSROOT (production default: app userData/SKILLs, macOS usually /Library/Application Support/LobsterAI/SKILLs).
Examples of important interactions: move, jump, shoot/attack, interact/use, select/confirm/cancel in menus, pause/resume, restart, and any special abilities or puzzle actions defined by the request. Multi-step examples: shooting an enemy should reduce its health; when health reaches 0 it should disappear and update the score; collecting a key should unlock a door and allow level progression.
Use when Codex is building or iterating on a web game (HTML/JS) and needs a reliable development + testing loop: implement small changes, run a Playwright-based test script with short input bursts and intentional pauses, inspect screenshots/text, and review console errors with render_game_to_text. Source: netease-youdao/lobsterai.