Full implementation plan for replacing the linear room_seq_json model
with a directed-graph zone topology. Enables Slay-the-Spire-style
forks, perception-gated secret rooms, locked shortcuts, multiple
paths converging on a shared boss.
Plan covers:
- Schema (new zone_node + zone_edge tables; current_node /
visited_nodes / node_choices columns on dnd_zone_run)
- Go-side types (ZoneGraph, ZoneNode, ZoneEdge, lock kinds)
- Authoring model with worked example (Crypt of Valdris POC)
- Nine-phase rollout (G1 schema → G2 types → G3 legacy compiler →
G4 dual-write run state → G5 navigation behind env gate → G6
dependent surfaces → G7 POC zone → G8 mass migration → G9
retire linear model)
- Risk inventory + mitigations
- Surface inventory of files likely to change
- Open authoring questions with proposed defaults
Not yet implemented — handed off to a fresh session.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
