diff --git a/packages/backend-defaults/src/entrypoints/actions/actionsServiceFactory.test.ts b/packages/backend-defaults/src/entrypoints/actions/actionsServiceFactory.test.ts
index 58a79c6a2a..c43945f1d5 100644
--- a/packages/backend-defaults/src/entrypoints/actions/actionsServiceFactory.test.ts
+++ b/packages/backend-defaults/src/entrypoints/actions/actionsServiceFactory.test.ts
@@ -312,7 +312,7 @@ describe('actionsServiceFactory', () => {
                 },
               },
               attributes: {
-                destructive: false,
+                destructive: true,
                 idempotent: false,
                 readOnly: false,
               },
diff --git a/packages/backend-defaults/src/entrypoints/actionsRegistry/DefaultActionsRegistryService.ts b/packages/backend-defaults/src/entrypoints/actionsRegistry/DefaultActionsRegistryService.ts
index cddb04c817..bee3f7d565 100644
--- a/packages/backend-defaults/src/entrypoints/actionsRegistry/DefaultActionsRegistryService.ts
+++ b/packages/backend-defaults/src/entrypoints/actionsRegistry/DefaultActionsRegistryService.ts
@@ -68,8 +68,9 @@ export class DefaultActionsRegistryService implements ActionsRegistryService {
           id,
           ...action,
           attributes: {
-            // todo(blam): what's safe defaults?
-            destructive: action.attributes?.destructive ?? false,
+            // Inspired by the @modelcontextprotocol/sdk defaults for the hints.
+            // https://github.com/modelcontextprotocol/typescript-sdk/blob/dd69efa1de8646bb6b195ff8d5f52e13739f4550/src/types.ts#L777-L812
+            destructive: action.attributes?.destructive ?? true,
             idempotent: action.attributes?.idempotent ?? false,
             readOnly: action.attributes?.readOnly ?? false,
           },
diff --git a/packages/backend-defaults/src/entrypoints/actionsRegistry/actionsRegistryServiceFactory.test.ts b/packages/backend-defaults/src/entrypoints/actionsRegistry/actionsRegistryServiceFactory.test.ts
index e885cb10a5..2de6272365 100644
--- a/packages/backend-defaults/src/entrypoints/actionsRegistry/actionsRegistryServiceFactory.test.ts
+++ b/packages/backend-defaults/src/entrypoints/actionsRegistry/actionsRegistryServiceFactory.test.ts
@@ -220,7 +220,7 @@ describe('actionsRegistryServiceFactory', () => {
           {
             name: 'test',
             attributes: {
-              destructive: false,
+              destructive: true,
               idempotent: false,
               readOnly: false,
             },
@@ -243,7 +243,7 @@ describe('actionsRegistryServiceFactory', () => {
                 title: 'Test',
                 description: 'Test',
                 attributes: {
-                  destructive: true,
+                  destructive: false,
                   idempotent: true,
                   readOnly: true,
                 },
@@ -275,7 +275,7 @@ describe('actionsRegistryServiceFactory', () => {
             title: 'Test',
             description: 'Test',
             attributes: {
-              destructive: true,
+              destructive: false,
               idempotent: true,
               readOnly: true,
             },