diff --git a/apps/game-api/src/simulation-service.ts b/apps/game-api/src/simulation-service.ts
index d4c8b7c..770b72e 100644
--- a/apps/game-api/src/simulation-service.ts
+++ b/apps/game-api/src/simulation-service.ts
@@ -1,4 +1,4 @@
-import { gridDisk, gridDistance } from 'h3-js';
+import { gridDistance } from 'h3-js';
 import {
   SwarmPlannerError,
   type ReflexProvider,
@@ -11,9 +11,7 @@ import {
   experimentModelConfigurationSchema,
   modelSupportsReasoningProfile,
   updateExperimentModelsRequestSchema,
-  h3CellSchema,
   OPENROUTER_PROVIDER_TIMEOUT_MS,
-  WORLD_SCENARIO_LIMITS,
   PATIENT_ZERO_PLAYER_THREAT_FEED_LIMIT,
   PATIENT_ZERO_PRESSURE_WINDOW_TICKS,
   swarmDirectiveSchema,
diff --git a/apps/game-api/src/swarm-directives.test.ts b/apps/game-api/src/swarm-directives.test.ts
index d716f5b..6200125 100644
--- a/apps/game-api/src/swarm-directives.test.ts
+++ b/apps/game-api/src/swarm-directives.test.ts
@@ -93,7 +93,7 @@ describe('swarm directive semantics', () => {
   });
 
   it('rejects infected expand targets while accepting open targets', () => {
-    const { state, worker, neighbor, directive } = fixture();
+    const { state, neighbor, directive } = fixture();
     const otherWorker = [...state.agents.values()][2]!;
     expect(swarmDirectiveIssue(state, directive('expand'))).toBeNull();
 
diff --git a/packages/shared/src/index.test.ts b/packages/shared/src/index.test.ts
index 30d2f66..63b9df0 100644
--- a/packages/shared/src/index.test.ts
+++ b/packages/shared/src/index.test.ts
@@ -1,10 +1,8 @@
 import { describe, expect, it } from 'vitest';
 import {
   SWARM_PLANNER_CONTRACT_VERSION,
-  WORLD_SCENARIO_LIMITS,
   OBJECTIVE_PROMPT_VERSION,
   apiErrorSchema,
-  agentIdSchema,
   agentObservationSchema,
   captureEligibilitySchema,
   experimentExportWorldStateSchema,
@@ -107,7 +105,7 @@ const snapshot = {
     spawnSeed: 'spawn',
     minimumSpawnSeparation: 0,
     patientZeroAgentId: worldAgents[0]!.id,
-    roster: worldAgents.map(({ currentCell: _currentCell, ...agent }) => agent),
+    roster: worldAgents.map(({ id, name, color }) => ({ id, name, color })),
     modelConfiguration: {
       globalModelId: 'author/compatible-model',
       globalReasoningProfile: 'provider-default',
diff --git a/packages/world-engine/src/index.ts b/packages/world-engine/src/index.ts
index 213afe5..28783a6 100644
--- a/packages/world-engine/src/index.ts
+++ b/packages/world-engine/src/index.ts
@@ -1,19 +1,10 @@
-import {
-  cellArea,
-  cellToLatLng,
-  greatCircleDistance,
-  gridDisk,
-  gridDistance,
-  latLngToCell,
-  UNITS,
-} from 'h3-js';
+import { cellArea, gridDisk, gridDistance, latLngToCell, UNITS } from 'h3-js';
 import {
   SWARM_PLANNER_CONTRACT_VERSION,
   DEVELOPMENT_WORLD_CONFIG,
   DEFAULT_MINIMUM_TICK_INTERVAL_MINUTES,
   DEFAULT_MAXIMUM_TICK_INTERVAL_MINUTES,
   DEFAULT_PROVIDER_ATTEMPT_LIMIT,
-  OBJECTIVE_PROMPT_VERSION,
   WORLD_SCENARIO_LIMITS,
   agentIdSchema,
   h3CellSchema,