diff --git a/packages/logic/src/actions/turn/general/che_기술연구.ts b/packages/logic/src/actions/turn/general/che_기술연구.ts
index f48b0f8..fb21d19 100644
--- a/packages/logic/src/actions/turn/general/che_기술연구.ts
+++ b/packages/logic/src/actions/turn/general/che_기술연구.ts
@@ -53,6 +53,9 @@ const readTech = (nation: Nation): number => {
     return typeof tech === 'number' && Number.isFinite(tech) ? tech : 0;
 };
 
+// 레거시 nation.tech는 MariaDB FLOAT이며 다음 명령 재조회 시 6자리 유효숫자로 양자화된다.
+const toLegacyStoredTech = (value: number): number => Number(value.toPrecision(6));
+
 export class ActionDefinition<
     TriggerState extends GeneralTriggerState = GeneralTriggerState,
 > implements GeneralActionDefinition<TriggerState, TechResearchArgs, TechResearchContext<TriggerState>> {
@@ -105,7 +108,9 @@ export class ActionDefinition<
 
         context.nation.meta = {
             ...context.nation.meta,
-            tech: currentTech + techScore / Math.max(context.nationGeneralCount, this.env.initialNationGenLimit),
+            tech: toLegacyStoredTech(
+                currentTech + techScore / Math.max(context.nationGeneralCount, this.env.initialNationGenLimit)
+            ),
         };
         context.general.gold = Math.max(0, context.general.gold - result.costGold);
         context.general.experience += result.exp;
@@ -144,8 +149,10 @@ export const actionContextBuilder: ActionContextBuilder = (
         ...base,
         city: base.city,
         nation: base.nation,
-        nationGeneralCount: options.worldRef.listGenerals().filter((general) => general.nationId === base.nation!.id)
-            .length,
+        nationGeneralCount:
+            typeof base.nation.meta.gennum === 'number' && Number.isFinite(base.nation.meta.gennum)
+                ? base.nation.meta.gennum
+                : options.worldRef.listGenerals().filter((general) => general.nationId === base.nation!.id).length,
         relYear:
             typeof options.scenarioMeta?.startYear === 'number'
                 ? options.world.currentYear - options.scenarioMeta.startYear
diff --git a/tools/integration-tests/test/turnCommandGeneralMatrix.integration.test.ts b/tools/integration-tests/test/turnCommandGeneralMatrix.integration.test.ts
index c295a55..752b478 100644
--- a/tools/integration-tests/test/turnCommandGeneralMatrix.integration.test.ts
+++ b/tools/integration-tests/test/turnCommandGeneralMatrix.integration.test.ts
@@ -907,6 +907,203 @@ integration('general movement command boundary and log parity', () => {
     );
 });
 
+interface DomesticBoundaryCase {
+    name: string;
+    action: 'che_성벽보수' | 'che_수비강화' | 'che_치안강화' | 'che_기술연구' | 'che_정착장려' | 'che_물자조달';
+    actorPatch?: Record<string, unknown>;
+    fixturePatches?: FixturePatches;
+    completed: boolean;
+}
+
+const domesticBoundaryCases: DomesticBoundaryCase[] = [
+    {
+        name: 'wall repair rejects a neutral actor',
+        action: 'che_성벽보수',
+        actorPatch: { nationId: 0 },
+        completed: false,
+    },
+    {
+        name: 'wall repair rejects a wandering nation',
+        action: 'che_성벽보수',
+        fixturePatches: { nations: { 1: { level: 0 } } },
+        completed: false,
+    },
+    {
+        name: 'wall repair rejects a foreign-occupied city',
+        action: 'che_성벽보수',
+        fixturePatches: { cities: { 3: { nationId: 2 } } },
+        completed: false,
+    },
+    {
+        name: 'wall repair rejects an unsupplied city',
+        action: 'che_성벽보수',
+        fixturePatches: { cities: { 3: { supplyState: 0 } } },
+        completed: false,
+    },
+    {
+        name: 'wall repair rejects insufficient gold',
+        action: 'che_성벽보수',
+        actorPatch: { gold: 0 },
+        completed: false,
+    },
+    {
+        name: 'wall repair rejects a wall already at capacity',
+        action: 'che_성벽보수',
+        fixturePatches: { cities: { 3: { wall: 1000, wallMax: 1000 } } },
+        completed: false,
+    },
+    {
+        name: 'wall repair preserves the early-capital front debuff',
+        action: 'che_성벽보수',
+        fixturePatches: { cities: { 3: { wall: 0, wallMax: 10_000, frontState: 1 } } },
+        completed: true,
+    },
+    {
+        name: 'defence reinforcement rejects a defence already at capacity',
+        action: 'che_수비강화',
+        fixturePatches: { cities: { 3: { defence: 1000, defenceMax: 1000 } } },
+        completed: false,
+    },
+    {
+        name: 'defence reinforcement preserves the early-capital front debuff',
+        action: 'che_수비강화',
+        fixturePatches: { cities: { 3: { defence: 0, defenceMax: 10_000, frontState: 1 } } },
+        completed: true,
+    },
+    {
+        name: 'security reinforcement rejects security already at capacity',
+        action: 'che_치안강화',
+        fixturePatches: { cities: { 3: { security: 1000, securityMax: 1000 } } },
+        completed: false,
+    },
+    {
+        name: 'security reinforcement preserves the early-capital front rule',
+        action: 'che_치안강화',
+        fixturePatches: { cities: { 3: { security: 0, securityMax: 10_000, frontState: 1 } } },
+        completed: true,
+    },
+    {
+        name: 'tech research rejects a neutral actor',
+        action: 'che_기술연구',
+        actorPatch: { nationId: 0 },
+        completed: false,
+    },
+    {
+        name: 'tech research rejects a wandering nation',
+        action: 'che_기술연구',
+        fixturePatches: { nations: { 1: { level: 0 } } },
+        completed: false,
+    },
+    {
+        name: 'tech research rejects a foreign-occupied city',
+        action: 'che_기술연구',
+        fixturePatches: { cities: { 3: { nationId: 2 } } },
+        completed: false,
+    },
+    {
+        name: 'tech research rejects an unsupplied city',
+        action: 'che_기술연구',
+        fixturePatches: { cities: { 3: { supplyState: 0 } } },
+        completed: false,
+    },
+    {
+        name: 'tech research rejects insufficient gold',
+        action: 'che_기술연구',
+        actorPatch: { gold: 0 },
+        completed: false,
+    },
+    {
+        name: 'tech research uses stored nation general count at the level cap',
+        action: 'che_기술연구',
+        fixturePatches: { nations: { 1: { tech: 3000, generalCount: 11 } } },
+        completed: true,
+    },
+    {
+        name: 'settlement encouragement rejects insufficient rice',
+        action: 'che_정착장려',
+        actorPatch: { rice: 0 },
+        completed: false,
+    },
+    {
+        name: 'settlement encouragement rejects a city at population capacity',
+        action: 'che_정착장려',
+        fixturePatches: { cities: { 3: { population: 200_000, populationMax: 200_000 } } },
+        completed: false,
+    },
+    {
+        name: 'settlement encouragement clamps at population capacity',
+        action: 'che_정착장려',
+        fixturePatches: { cities: { 3: { population: 199_999, populationMax: 200_000 } } },
+        completed: true,
+    },
+    {
+        name: 'procurement rejects a neutral actor',
+        action: 'che_물자조달',
+        actorPatch: { nationId: 0 },
+        completed: false,
+    },
+    {
+        name: 'procurement rejects a wandering nation',
+        action: 'che_물자조달',
+        fixturePatches: { nations: { 1: { level: 0 } } },
+        completed: false,
+    },
+    {
+        name: 'procurement rejects a foreign-occupied city',
+        action: 'che_물자조달',
+        fixturePatches: { cities: { 3: { nationId: 2 } } },
+        completed: false,
+    },
+    {
+        name: 'procurement rejects an unsupplied city',
+        action: 'che_물자조달',
+        fixturePatches: { cities: { 3: { supplyState: 0 } } },
+        completed: false,
+    },
+    {
+        name: 'procurement succeeds without owned gold or rice',
+        action: 'che_물자조달',
+        actorPatch: { gold: 0, rice: 0 },
+        completed: true,
+    },
+];
+
+integration('general domestic command boundary, value, and log parity', () => {
+    it.each(domesticBoundaryCases)(
+        '$name',
+        async ({ name, action, actorPatch, fixturePatches, completed }) => {
+            const request = buildRequest(action, undefined, actorPatch, fixturePatches);
+            request.setup!.world!.hiddenSeed = `general-domestic-${name}`;
+            request.observe!.includeGlobalHistoryLogs = true;
+            const reference = runReferenceTurnCommandTraceRequest(
+                workspaceRoot!,
+                request as unknown as Record<string, unknown>
+            );
+            const core = await runCoreTurnCommandTrace(request, reference.before);
+
+            expect(reference.execution.outcome).toMatchObject({ completed });
+            expect(core.execution.outcome).toMatchObject({
+                requestedAction: action,
+                actionKey: completed ? action : '휴식',
+                usedFallback: !completed,
+            });
+            expect(core.rng).toEqual(reference.rng);
+            expect(
+                compareTurnSnapshotDeltas(reference.before, reference.after, core.before, core.after, {
+                    ignoredPathPatterns: ignoredLifecyclePaths,
+                })
+            ).toEqual([]);
+
+            if (completed) {
+                expect(semanticLogSignatures(core.after.logs)).toEqual(
+                    semanticLogSignatures(addedReferenceLogs(reference.before, reference.after.logs))
+                );
+            }
+        },
+        120_000
+    );
+});
+
 integration('명장일람 rank_data command parity', () => {
     it('화계 increments firenum from the same seeded value as legacy', async () => {
         const request = buildRequest(