implement-gameplay-living-world

name	implement-gameplay-living-world
description	Implement one deterministic construction, needs, goals, economy, scarcity, or delayed-consequence system slice in a standalone game. Use for one G14 living-world slice only, not narrative campaigns or presentation.

Implement living-world systems

Scope

Implement one named G14:<system-id> slice for construction, needs, goals, economy, scarcity, production, or delayed consequences. Narrative campaigns remain in G13; presentation remains in G20-G25.

Inputs

• Absolute FORGE_ROOT and external GAME_ROOT with passing G04 and required G10-G13 dependency gates.
• Current source-tree/runtime/platform/catalog hashes and G14 writable surface.
• Selected world ID, release ID, and verified bundle hash for this system slice.
• One declared system-id, its typed content, budgets/capacities, and dependencies.
• Existing ordered domain-event contracts and Forge-owned system inventory.

Outputs

• One game-owned deterministic reducer/composition slice and focused tests.
• Typed cross-system events plus an external inventory/aggregate-gate update.

Invariants

• Keep src/isoworld, locks, bundles, narrative graphs, and presentation immutable.
• Route cross-system effects through ordered events with explicit priority, capacity, cancellation, scarcity, and tie-breaking policies.
• Do not begin a second system slice in the same invocation.
• Never copy AGENTS.md, .agents, Forge skills, or phase evidence into GAME_ROOT.

Workflow

1. Read the living-world gate in docs/GAME_IMPLEMENTATION_PHASES.md.
2. Define the selected system slice as typed data and deterministic reducers.
3. Route cross-system effects through ordered domain events, not direct UI hooks.
4. Specify capacity, priority, scarcity, cancellation, and tie-breaking policies.
5. Preserve navigation, narrative, and save/replay invariants after each change.
6. Test causal chains, resource conservation, delayed effects, and state hashes.
7. Update the Forge-owned system inventory and aggregate gate outside GAME_ROOT.

Completion

Complete one slice only when causal-chain, conservation, cancellation, and replay tests pass with the shared headless suite and clean-game audit. Mark G14 aggregate complete only when every declared system ID has matching evidence. If the runtime already supplies a slice, verify it without duplicating game code.