T4 monster tuning so martial leaders land in the 60-75% band (underdark
59/80, feywild 65/84 at L10/L12, n=50); casters trail (class-side gap that
monster tuning provably can't compress -- Pass 1 showed casters pinned at 0%
while martials moved). T5 deferred (walls everyone at its L12 floor; needs an
L15-16 corpus).
- dnd_bestiary.go: underdark elite/boss HP+AC up + caster-lethal proc cuts
(mind_flayer/drow_mage/roper); feywild HP+AC up.
- bestiary_srd.go: feywild multiattack profiles (fomorian/night_hag/green_hag)
+ Thornmother 2->3 lashes -- HP/AC alone didn't move feywild's low-damage
roster; multiattack is what pulls facerolling martials into band.
- zone_graph_feywild_crossing.go: free fork1's marsh edge. fork1 was the only
fork in the game with every exit skill-locked (CHA+Perception, no LockNone)
and deterministic no-retry rolls -- a prod SOFT-LOCK stranding ~60% of
players (low CHA+WIS). Kept grove's CHA bargain as a bonus route.
- expedition_sim.go: firstUnlockedForkChoice -- sim fork policy picks the
first unlocked option instead of blind 'go 1' (which looped forever on
locked forks); halts fork_all_locked if none.
- tests: graph-wide TestZoneGraphs_NoSoftLockedFork + fork1 free-path guard.
Writeup: sim_results/d8f_findings.md
G1 — schema. Adds zone_node + zone_edge tables and three columns to
dnd_zone_run (current_node, visited_nodes, node_choices). Linear
columns stay during the migration; G9 retires them.
G2 — types + validator. New internal/plugin/zone_graph.go defines
ZoneNode/ZoneEdge/ZoneGraph + ZoneNodeKind/ZoneEdgeLockKind. BuildGraph
enforces: exactly one entry, exactly one boss, boss reachable via BFS,
no orphan nodes, no self-loops without explicit opt-in. BuildLinearGraph
synthesizes a chain for legacy zones.
G3 — legacy compiler + dual-mode loader. compileLegacyZoneGraph turns
a ZoneDefinition into a representative linear graph (MaxRooms shape).
loadZoneGraph returns the registered graph if hand-authored (G7+),
else the legacy fallback. compileRunGraph mirrors a per-run RoomSeq
exactly for hot-swap derivations.
G4 — run-state dual-write. DungeonRun gains CurrentNode / VisitedNodes
/ NodeChoices. scanZoneRun reads them and hot-swaps current_node from
current_room when a row predates the migration (deriveLegacyNodeID
matches BuildLinearGraph's "<zone>.r<n>" scheme). startZoneRun and
markRoomCleared write both columns.
No behavior change yet — navigation surface (forks, locked edges,
!zone go) lands in G5.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
