argentum-engine

Adds a new feature or mechanic to the Argentum Engine (SDK primitive, effect, trigger, condition, static/replacement ability, server/client capability) following the project's architecture and SDK-elegance principles. Use when implementing engine/SDK/server/client functionality that isn't a single card — e.g. "add an effect type", "support a new keyword", "add a decision UI", "make the engine handle X".

Implements new Magic: The Gathering cards for the Argentum Engine. Use when adding a new card, the user provides a card name to implement, or asks to implement a specific MTG card.

Review pending changes (a branch, PR, or working tree) for the Argentum Engine. Optimizes for an elegant, reusable SDK — flags one-off effects/abilities that should compose existing primitives — and checks correctness, projection use, tests, and architectural fit. Use when the user says "review this PR", "review this branch", "review my changes", or asks for a code review of pending work.

Pick a random unimplemented card from a set and implement it. Accepts either a backlog cards.md path or a set name/code.

Generate a test scenario JSON for the DevScenarioController. Takes a description of what you want to test and produces a valid scenario file.

Pick the next unchecked Bloomburrow card from the AI advisor checklist, evaluate if it needs an advisor, create one if needed, and check it off.