diff --git a/server/api/assumptions/index.get.ts b/server/api/assumptions/index.get.ts
index 603e4d34..e5722825 100644
--- a/server/api/assumptions/index.get.ts
+++ b/server/api/assumptions/index.get.ts
@@ -6,7 +6,7 @@ const querySchema = z.object({
     solutionId: z.string().uuid(),
     name: z.string().optional(),
     statement: z.string().optional(),
-    isSilence: z.boolean().optional()
+    isSilence: z.boolean().optional().default(false)
 })
 
 /**
diff --git a/server/api/constraints/index.get.ts b/server/api/constraints/index.get.ts
index 1df59362..44280d00 100644
--- a/server/api/constraints/index.get.ts
+++ b/server/api/constraints/index.get.ts
@@ -7,7 +7,7 @@ const querySchema = z.object({
     name: z.string().optional(),
     statement: z.string().optional(),
     category: z.nativeEnum(ConstraintCategory).optional(),
-    isSilence: z.boolean().optional()
+    isSilence: z.boolean().optional().default(false)
 })
 
 /**
diff --git a/server/api/effects/index.get.ts b/server/api/effects/index.get.ts
index 10155ee9..80b66977 100644
--- a/server/api/effects/index.get.ts
+++ b/server/api/effects/index.get.ts
@@ -6,7 +6,7 @@ const querySchema = z.object({
     solutionId: z.string().uuid(),
     name: z.string().optional(),
     statement: z.string().optional(),
-    isSilence: z.boolean().optional()
+    isSilence: z.boolean().optional().default(false)
 })
 
 /**
diff --git a/server/api/environment-components/index.get.ts b/server/api/environment-components/index.get.ts
index 850509f5..480d046b 100644
--- a/server/api/environment-components/index.get.ts
+++ b/server/api/environment-components/index.get.ts
@@ -7,7 +7,7 @@ const querySchema = z.object({
     name: z.string().optional(),
     statement: z.string().optional(),
     parentComponentId: z.string().uuid().optional(),
-    isSilence: z.boolean().optional()
+    isSilence: z.boolean().optional().default(false)
 })
 
 /**
diff --git a/server/api/functional-behaviors/index.get.ts b/server/api/functional-behaviors/index.get.ts
index 9c5d35e3..94917bb7 100644
--- a/server/api/functional-behaviors/index.get.ts
+++ b/server/api/functional-behaviors/index.get.ts
@@ -7,7 +7,7 @@ const querySchema = z.object({
     name: z.string().optional(),
     statement: z.string().optional(),
     priority: z.nativeEnum(MoscowPriority).optional(),
-    isSilence: z.boolean().optional()
+    isSilence: z.boolean().optional().default(false)
 })
 
 /**
diff --git a/server/api/glossary-terms/index.get.ts b/server/api/glossary-terms/index.get.ts
index 5b13f70d..21d99cc3 100644
--- a/server/api/glossary-terms/index.get.ts
+++ b/server/api/glossary-terms/index.get.ts
@@ -6,7 +6,7 @@ const querySchema = z.object({
     solutionId: z.string().uuid(),
     name: z.string().optional(),
     statement: z.string().optional(),
-    isSilence: z.boolean().optional()
+    isSilence: z.boolean().optional().default(false)
 })
 
 /**
diff --git a/server/api/invariants/index.get.ts b/server/api/invariants/index.get.ts
index 4495d7aa..459bc040 100644
--- a/server/api/invariants/index.get.ts
+++ b/server/api/invariants/index.get.ts
@@ -6,7 +6,7 @@ const querySchema = z.object({
     solutionId: z.string().uuid(),
     name: z.string().optional(),
     statement: z.string().optional(),
-    isSilence: z.boolean().optional()
+    isSilence: z.boolean().optional().default(false)
 })
 
 /**
diff --git a/server/api/justifications/index.get.ts b/server/api/justifications/index.get.ts
index 2f937867..0a654ef1 100644
--- a/server/api/justifications/index.get.ts
+++ b/server/api/justifications/index.get.ts
@@ -6,7 +6,7 @@ const querySchema = z.object({
     solutionId: z.string().uuid(),
     name: z.string().optional(),
     statement: z.string().optional(),
-    isSilence: z.boolean().optional()
+    isSilence: z.boolean().optional().default(false)
 })
 
 /**
diff --git a/server/api/limits/index.get.ts b/server/api/limits/index.get.ts
index 36a56ff5..b7db6f5d 100644
--- a/server/api/limits/index.get.ts
+++ b/server/api/limits/index.get.ts
@@ -6,7 +6,7 @@ const querySchema = z.object({
     solutionId: z.string().uuid(),
     name: z.string().optional(),
     statement: z.string().optional(),
-    isSilence: z.boolean().optional()
+    isSilence: z.boolean().optional().default(false)
 })
 
 /**
diff --git a/server/api/non-functional-behaviors/index.get.ts b/server/api/non-functional-behaviors/index.get.ts
index 23523ccd..4a18c4ae 100644
--- a/server/api/non-functional-behaviors/index.get.ts
+++ b/server/api/non-functional-behaviors/index.get.ts
@@ -7,7 +7,7 @@ const querySchema = z.object({
     name: z.string().optional(),
     statement: z.string().optional(),
     priority: z.nativeEnum(MoscowPriority).optional(),
-    isSilence: z.boolean().optional()
+    isSilence: z.boolean().optional().default(false)
 })
 
 /**
diff --git a/server/api/obstacles/index.get.ts b/server/api/obstacles/index.get.ts
index a083653d..101216c2 100644
--- a/server/api/obstacles/index.get.ts
+++ b/server/api/obstacles/index.get.ts
@@ -6,7 +6,7 @@ const querySchema = z.object({
     solutionId: z.string().uuid(),
     name: z.string().optional(),
     statement: z.string().optional(),
-    isSilence: z.boolean().optional()
+    isSilence: z.boolean().optional().default(false)
 })
 
 /**
diff --git a/server/api/outcomes/index.get.ts b/server/api/outcomes/index.get.ts
index 1363446c..14e508b6 100644
--- a/server/api/outcomes/index.get.ts
+++ b/server/api/outcomes/index.get.ts
@@ -6,7 +6,7 @@ const querySchema = z.object({
     solutionId: z.string().uuid(),
     name: z.string().optional(),
     statement: z.string().optional(),
-    isSilence: z.boolean().optional()
+    isSilence: z.boolean().optional().default(false)
 })
 
 /**
diff --git a/server/api/persons/index.get.ts b/server/api/persons/index.get.ts
index 35a798f9..8e157fe9 100644
--- a/server/api/persons/index.get.ts
+++ b/server/api/persons/index.get.ts
@@ -7,7 +7,7 @@ const querySchema = z.object({
     name: z.string().optional(),
     statement: z.string().optional(),
     email: z.string().email().optional(),
-    isSilence: z.boolean().optional()
+    isSilence: z.boolean().optional().default(false)
 })
 
 /**
diff --git a/server/api/stakeholders/index.get.ts b/server/api/stakeholders/index.get.ts
index a55fd701..1ccea252 100644
--- a/server/api/stakeholders/index.get.ts
+++ b/server/api/stakeholders/index.get.ts
@@ -11,7 +11,7 @@ const querySchema = z.object({
     influence: z.number().min(0).max(100).optional(),
     segmentation: z.nativeEnum(StakeholderSegmentation).optional(),
     category: z.nativeEnum(StakeholderCategory).optional(),
-    isSilence: z.boolean().optional()
+    isSilence: z.boolean().optional().default(false)
 })
 
 /**
diff --git a/server/api/system-components/index.get.ts b/server/api/system-components/index.get.ts
index 8c29d230..fe72dbc2 100644
--- a/server/api/system-components/index.get.ts
+++ b/server/api/system-components/index.get.ts
@@ -7,7 +7,7 @@ const querySchema = z.object({
     name: z.string().optional(),
     statement: z.string().optional(),
     parentComponentId: z.string().uuid().optional(),
-    isSilence: z.boolean().optional()
+    isSilence: z.boolean().optional().default(false)
 })
 
 /**
diff --git a/server/api/use-cases/index.get.ts b/server/api/use-cases/index.get.ts
index 7af52d9e..0927a99a 100644
--- a/server/api/use-cases/index.get.ts
+++ b/server/api/use-cases/index.get.ts
@@ -17,7 +17,7 @@ const querySchema = z.object({
     mainSuccessScenario: z.string().optional(),
     successGuaranteeId: z.string().uuid().optional(),
     extensions: z.string().optional(),
-    isSilence: z.boolean().optional()
+    isSilence: z.boolean().optional().default(false)
 })
 
 /**
diff --git a/server/api/user-stories/index.get.ts b/server/api/user-stories/index.get.ts
index e58e794e..b3fbfc2b 100644
--- a/server/api/user-stories/index.get.ts
+++ b/server/api/user-stories/index.get.ts
@@ -10,7 +10,7 @@ const querySchema = z.object({
     priority: z.nativeEnum(MoscowPriority).optional(),
     outcomeId: z.string().uuid().optional(),
     functionalBehaviorId: z.string().uuid().optional(),
-    isSilence: z.boolean().optional()
+    isSilence: z.boolean().optional().default(false)
 })
 
 /**