diff --git a/blocksuite/affine/block-latex/src/commands.ts b/blocksuite/affine/block-latex/src/commands.ts
index 5bd02cb05a..d30a27a1c3 100644
--- a/blocksuite/affine/block-latex/src/commands.ts
+++ b/blocksuite/affine/block-latex/src/commands.ts
@@ -1,6 +1,5 @@
 import type { LatexProps } from '@blocksuite/affine-model';
 import type { Command } from '@blocksuite/block-std';
-import { assertInstanceOf } from '@blocksuite/global/utils';
 import type { BlockModel } from '@blocksuite/store';
 
 import { LatexBlockComponent } from './latex-block.js';
@@ -46,9 +45,10 @@ export const insertLatexBlockCommand: Command<
     insertedLatexBlockId: std.host.updateComplete.then(async () => {
       if (!latex) {
         const blockComponent = std.view.getBlock(result[0]);
-        assertInstanceOf(blockComponent, LatexBlockComponent);
-        await blockComponent.updateComplete;
-        blockComponent.toggleEditor();
+        if (blockComponent instanceof LatexBlockComponent) {
+          await blockComponent.updateComplete;
+          blockComponent.toggleEditor();
+        }
       }
       return result[0];
     }),
diff --git a/blocksuite/affine/block-root/src/edgeless/components/auto-complete/auto-complete-panel.ts b/blocksuite/affine/block-root/src/edgeless/components/auto-complete/auto-complete-panel.ts
index 6e9097ae51..77290877c3 100644
--- a/blocksuite/affine/block-root/src/edgeless/components/auto-complete/auto-complete-panel.ts
+++ b/blocksuite/affine/block-root/src/edgeless/components/auto-complete/auto-complete-panel.ts
@@ -26,7 +26,10 @@ import {
   FeatureFlagService,
   ThemeProvider,
 } from '@blocksuite/affine-shared/services';
-import { captureEventTarget } from '@blocksuite/affine-shared/utils';
+import {
+  captureEventTarget,
+  matchModels,
+} from '@blocksuite/affine-shared/utils';
 import { type BlockStdScope, stdContext } from '@blocksuite/block-std';
 import { GfxControllerIdentifier } from '@blocksuite/block-std/gfx';
 import type { XYWH } from '@blocksuite/global/gfx';
@@ -38,7 +41,7 @@ import {
   toDegree,
   Vec,
 } from '@blocksuite/global/gfx';
-import { assertInstanceOf, WithDisposable } from '@blocksuite/global/utils';
+import { WithDisposable } from '@blocksuite/global/utils';
 import { FrameIcon, PageIcon } from '@blocksuite/icons/lit';
 import { consume } from '@lit/context';
 import { baseTheme } from '@toeverything/theme';
@@ -192,7 +195,9 @@ export class EdgelessAutoCompletePanel extends WithDisposable(LitElement) {
       doc.root?.id
     );
     const note = doc.getBlock(id)?.model;
-    assertInstanceOf(note, NoteBlockModel);
+    if (!matchModels(note, [NoteBlockModel])) {
+      return;
+    }
     doc.addBlock('affine:paragraph', { type: 'text' }, id);
     const group = this.currentSource.group;
 
@@ -285,7 +290,9 @@ export class EdgelessAutoCompletePanel extends WithDisposable(LitElement) {
       });
       if (!textId) return;
       const textElement = this.crud.getElementById(textId);
-      assertInstanceOf(textElement, TextElementModel);
+      if (!(textElement instanceof TextElementModel)) {
+        return;
+      }
 
       this.crud.updateElement(this.connector.id, {
         target: { id: textId, position },
diff --git a/blocksuite/affine/block-root/src/edgeless/components/toolbar/mindmap/basket-elements.ts b/blocksuite/affine/block-root/src/edgeless/components/toolbar/mindmap/basket-elements.ts
index bb549e0a0c..3b39549578 100644
--- a/blocksuite/affine/block-root/src/edgeless/components/toolbar/mindmap/basket-elements.ts
+++ b/blocksuite/affine/block-root/src/edgeless/components/toolbar/mindmap/basket-elements.ts
@@ -13,7 +13,6 @@ import {
 } from '@blocksuite/affine-shared/services';
 import { openFileOrFiles } from '@blocksuite/affine-shared/utils';
 import { Bound } from '@blocksuite/global/gfx';
-import { assertInstanceOf } from '@blocksuite/global/utils';
 import type { TemplateResult } from 'lit';
 import * as Y from 'yjs';
 
@@ -143,7 +142,10 @@ export const textRender: DraggableTool['render'] = async (
 
     edgeless.doc.captureSync();
     const textElement = edgeless.service.crud.getElementById(id);
-    assertInstanceOf(textElement, TextElementModel);
+    if (!(textElement instanceof TextElementModel)) {
+      console.error('Cannot mount text editor on a non-text element');
+      return null;
+    }
     mountTextElementEditor(textElement, edgeless);
   }
 
diff --git a/blocksuite/affine/block-root/src/edgeless/utils/text.ts b/blocksuite/affine/block-root/src/edgeless/utils/text.ts
index 38dceb771c..a4b18a9509 100644
--- a/blocksuite/affine/block-root/src/edgeless/utils/text.ts
+++ b/blocksuite/affine/block-root/src/edgeless/utils/text.ts
@@ -14,7 +14,6 @@ import type { PointerEventState } from '@blocksuite/block-std';
 import { BlockSuiteError, ErrorCode } from '@blocksuite/global/exceptions';
 import type { IVec } from '@blocksuite/global/gfx';
 import { Bound } from '@blocksuite/global/gfx';
-import { assertInstanceOf } from '@blocksuite/global/utils';
 import * as Y from 'yjs';
 
 import { EdgelessConnectorLabelEditor } from '../components/text/edgeless-connector-label-editor.js';
@@ -82,11 +81,10 @@ export function mountShapeTextEditor(
 
   const updatedElement = edgeless.service.crud.getElementById(shapeElement.id);
 
-  assertInstanceOf(
-    updatedElement,
-    ShapeElementModel,
-    'Cannot mount text editor on a non-shape element'
-  );
+  if (!(updatedElement instanceof ShapeElementModel)) {
+    console.error('Cannot mount text editor on a non-shape element');
+    return;
+  }
 
   const shapeEditor = new EdgelessShapeTextEditor();
   shapeEditor.element = updatedElement;
diff --git a/blocksuite/affine/block-root/src/widgets/page-dragging-area/page-dragging-area.ts b/blocksuite/affine/block-root/src/widgets/page-dragging-area/page-dragging-area.ts
index 5a68c08e58..8cd24e00f8 100644
--- a/blocksuite/affine/block-root/src/widgets/page-dragging-area/page-dragging-area.ts
+++ b/blocksuite/affine/block-root/src/widgets/page-dragging-area/page-dragging-area.ts
@@ -11,7 +11,6 @@ import {
   type PointerEventState,
   WidgetComponent,
 } from '@blocksuite/block-std';
-import { assertInstanceOf } from '@blocksuite/global/utils';
 import { html, nothing } from 'lit';
 import { state } from 'lit/decorators.js';
 import { styleMap } from 'lit/directives/style-map.js';
@@ -443,9 +442,14 @@ function getSelectingBlockPaths(blockInfos: BlockInfo[], userRect: Rect) {
 
 function isDragArea(e: PointerEventState) {
   const el = e.raw.target;
-  assertInstanceOf(el, Element);
+  if (!(el instanceof Element)) {
+    return false;
+  }
   const block = el.closest<BlockComponent>(`[${BLOCK_ID_ATTR}]`);
-  return block && matchModels(block.model, [RootBlockModel, NoteBlockModel]);
+  if (!block) {
+    return false;
+  }
+  return matchModels(block.model, [RootBlockModel, NoteBlockModel]);
 }
 
 declare global {
diff --git a/blocksuite/affine/block-surface/src/managers/connector-manager.ts b/blocksuite/affine/block-surface/src/managers/connector-manager.ts
index fb77b4a3d2..91adad08a3 100644
--- a/blocksuite/affine/block-surface/src/managers/connector-manager.ts
+++ b/blocksuite/affine/block-surface/src/managers/connector-manager.ts
@@ -32,7 +32,7 @@ import {
   toRadian,
   Vec,
 } from '@blocksuite/global/gfx';
-import { assertEquals, assertType, last } from '@blocksuite/global/utils';
+import { assertType, last } from '@blocksuite/global/utils';
 import { effect } from '@preact/signals-core';
 
 import { Overlay } from '../renderer/overlay.js';
@@ -606,13 +606,10 @@ function mergePath(points: IVec[] | IVec3[]) {
   for (let i = 0; i < result.length - 1; i++) {
     const cur = result[i];
     const next = result[i + 1];
-    try {
-      assertEquals(
-        almostEqual(cur[0], next[0], 0.02) ||
-          almostEqual(cur[1], next[1], 0.02),
-        true
-      );
-    } catch {
+    const isAlmostEqual =
+      almostEqual(cur[0], next[0], 0.02) || almostEqual(cur[1], next[1], 0.02);
+    if (!isAlmostEqual) {
+      console.warn('Expected equal points');
       console.warn(points);
       console.warn(result);
     }
diff --git a/blocksuite/affine/data-view/src/view-presets/table/pc/controller/drag-to-fill.ts b/blocksuite/affine/data-view/src/view-presets/table/pc/controller/drag-to-fill.ts
index 6799584ed1..3cc21fffc4 100644
--- a/blocksuite/affine/data-view/src/view-presets/table/pc/controller/drag-to-fill.ts
+++ b/blocksuite/affine/data-view/src/view-presets/table/pc/controller/drag-to-fill.ts
@@ -1,5 +1,5 @@
 import { ShadowlessElement } from '@blocksuite/block-std';
-import { assertEquals } from '@blocksuite/global/utils';
+import { isEqual } from '@blocksuite/global/utils';
 import { type Text } from '@blocksuite/store';
 import { css, html } from 'lit';
 import { state } from 'lit/decorators.js';
@@ -63,11 +63,10 @@ export function fillSelectionWithFocusCellData(
   if (!focusCell) return;
 
   if (rowsSelection && columnsSelection) {
-    assertEquals(
-      columnsSelection.start,
-      columnsSelection.end,
-      'expected selections on a single column'
-    );
+    if (!isEqual(columnsSelection.start, columnsSelection.end)) {
+      console.error('expected selections on a single column');
+      return;
+    }
 
     const curCol = focusCell.column; // we are sure that we are always in the same column while iterating through rows
     const cell = focusCell.cell$.value;
diff --git a/blocksuite/affine/shared/src/utils/model/checker.ts b/blocksuite/affine/shared/src/utils/model/checker.ts
index 4509712684..147268d6f3 100644
--- a/blocksuite/affine/shared/src/utils/model/checker.ts
+++ b/blocksuite/affine/shared/src/utils/model/checker.ts
@@ -11,10 +11,11 @@ type ModelList<T> =
 export function matchModels<
   const Model extends ConstructorType<BlockModel>[],
   U extends ModelList<Model>[number] = ModelList<Model>[number],
->(model: BlockModel | null, expected: Model): model is U {
-  return (
-    !!model && expected.some(expectedModel => model instanceof expectedModel)
-  );
+>(model: BlockModel | null | undefined, expected: Model): model is U {
+  if (model === null || model === undefined) {
+    return false;
+  }
+  return expected.some(expectedModel => model instanceof expectedModel);
 }
 
 export function isInsideBlockByFlavour(
diff --git a/blocksuite/framework/global/src/utils/index.ts b/blocksuite/framework/global/src/utils/index.ts
index fed9102456..004cfaa694 100644
--- a/blocksuite/framework/global/src/utils/index.ts
+++ b/blocksuite/framework/global/src/utils/index.ts
@@ -1,7 +1,7 @@
-export * from './assert.js';
 export * from './crypto.js';
 export * from './disposable.js';
 export * from './function.js';
+export * from './is-equal.js';
 export * from './iterable.js';
 export * from './logger.js';
 export * from './signal-watcher.js';
diff --git a/blocksuite/framework/global/src/utils/assert.ts b/blocksuite/framework/global/src/utils/is-equal.ts
similarity index 60%
rename from blocksuite/framework/global/src/utils/assert.ts
rename to blocksuite/framework/global/src/utils/is-equal.ts
index 84fad2e05e..ef61a8de9b 100644
--- a/blocksuite/framework/global/src/utils/assert.ts
+++ b/blocksuite/framework/global/src/utils/is-equal.ts
@@ -1,7 +1,4 @@
 // https://stackoverflow.com/questions/31538010/test-if-a-variable-is-a-primitive-rather-than-an-object
-import { ErrorCode } from '../exceptions/code.js';
-import { BlockSuiteError } from '../exceptions/index.js';
-
 export function isPrimitive(
   a: unknown
 ): a is null | undefined | boolean | number | string {
@@ -10,16 +7,6 @@ export function isPrimitive(
 
 export function assertType<T>(_: unknown): asserts _ is T {}
 
-export function assertNotExists<T>(
-  val: T | null | undefined,
-  message = 'val exists',
-  errorCode = ErrorCode.ValueNotExists
-): asserts val is null | undefined {
-  if (val !== null && val !== undefined) {
-    throw new BlockSuiteError(errorCode, message);
-  }
-}
-
 export type Equals<X, Y> =
   ///
   (<T>() => T extends X ? 1 : 2) extends <T>() => T extends Y ? 1 : 2
@@ -65,26 +52,3 @@ export function isEqual<T extends Allowed, U extends T>(
   }
   return true as Equals<T, U>;
 }
-export function assertEquals<T extends Allowed, U extends T>(
-  val: T,
-  expected: U,
-  message = 'val is not same as expected',
-  errorCode = ErrorCode.ValueNotEqual
-): asserts val is U {
-  if (!isEqual(val, expected)) {
-    throw new BlockSuiteError(errorCode, message);
-  }
-}
-
-type Class<T> = new (...args: any[]) => T;
-
-export function assertInstanceOf<T>(
-  val: unknown,
-  expected: Class<T>,
-  message = 'val is not instance of expected',
-  errorCode = ErrorCode.ValueNotInstanceOf
-): asserts val is T {
-  if (!(val instanceof expected)) {
-    throw new BlockSuiteError(errorCode, message);
-  }
-}
diff --git a/blocksuite/framework/inline/src/services/range.ts b/blocksuite/framework/inline/src/services/range.ts
index 932dcc9a82..b8cdedd7cb 100644
--- a/blocksuite/framework/inline/src/services/range.ts
+++ b/blocksuite/framework/inline/src/services/range.ts
@@ -1,4 +1,3 @@
-import { assertInstanceOf } from '@blocksuite/global/utils';
 import { effect } from '@preact/signals-core';
 import * as Y from 'yjs';
 
@@ -47,7 +46,9 @@ export class RangeService<TextAttributes extends BaseTextAttributes> {
       return null;
     }
     const textNode = text.childNodes[1];
-    assertInstanceOf(textNode, Text);
+    if (!(textNode instanceof Text)) {
+      return null;
+    }
     range.setStart(textNode, 0);
     range.setEnd(textNode, textNode.textContent?.length ?? 0);
     const inlineRange = this.toInlineRange(range);
diff --git a/blocksuite/integration-test/vitest.config.ts b/blocksuite/integration-test/vitest.config.ts
index 875d8ad4f6..07aeaa76cb 100644
--- a/blocksuite/integration-test/vitest.config.ts
+++ b/blocksuite/integration-test/vitest.config.ts
@@ -33,7 +33,7 @@ export default defineConfig(_configEnv =>
       coverage: {
         provider: 'istanbul', // or 'c8'
         reporter: ['lcov'],
-        reportsDirectory: '../../.coverage/presets',
+        reportsDirectory: '../../.coverage/integration-test',
       },
       deps: {
         interopDefault: true,
diff --git a/blocksuite/tests-legacy/e2e/edgeless/linked-doc.spec.ts b/blocksuite/tests-legacy/e2e/edgeless/linked-doc.spec.ts
index 249f26fc7a..a50f2b3bfe 100644
--- a/blocksuite/tests-legacy/e2e/edgeless/linked-doc.spec.ts
+++ b/blocksuite/tests-legacy/e2e/edgeless/linked-doc.spec.ts
@@ -1,4 +1,3 @@
-import { assertNotExists } from '@blocksuite/global/utils';
 import { expect } from '@playwright/test';
 
 import {
@@ -90,7 +89,7 @@ test.describe('note to linked doc', () => {
     const moreButton = locatorComponentToolbarMoreButton(page);
     await moreButton.click();
     const turnButton = page.locator('.turn-into-linked-doc');
-    assertNotExists(turnButton);
+    expect(turnButton).toBeNull();
   });
 
   // TODO FIX ME
@@ -111,7 +110,7 @@ test.describe('note to linked doc', () => {
     const moreButton = locatorComponentToolbarMoreButton(page);
     await moreButton.click();
     const turnButton = page.locator('.turn-into-linked-doc');
-    assertNotExists(turnButton);
+    expect(turnButton).toBeNull();
   });
 });
 
diff --git a/eslint.config.mjs b/eslint.config.mjs
index fb1deee2f6..7e8b7d6bf5 100644
--- a/eslint.config.mjs
+++ b/eslint.config.mjs
@@ -188,11 +188,6 @@ export default tseslint.config(
               message: "Don't import from src",
               allowTypeImports: false,
             },
-            {
-              group: ['@blocksuite/store'],
-              message: "Import from '@blocksuite/global/utils'",
-              importNames: ['assertEquals'],
-            },
           ],
         },
       ],
diff --git a/packages/frontend/core/src/components/affine/page-history-modal/data.ts b/packages/frontend/core/src/components/affine/page-history-modal/data.ts
index ad2a6ea758..0000f593b3 100644
--- a/packages/frontend/core/src/components/affine/page-history-modal/data.ts
+++ b/packages/frontend/core/src/components/affine/page-history-modal/data.ts
@@ -11,7 +11,6 @@ import { DebugLogger } from '@affine/debug';
 import type { ListHistoryQuery } from '@affine/graphql';
 import { listHistoryQuery, recoverDocMutation } from '@affine/graphql';
 import { i18nTime } from '@affine/i18n';
-import { assertEquals } from '@blocksuite/affine/global/utils';
 import type { Workspace } from '@blocksuite/affine/store';
 import { useService } from '@toeverything/infra';
 import { useEffect, useMemo } from 'react';
@@ -291,7 +290,9 @@ export const useRestorePage = (docCollection: Workspace, pageId: string) => {
       }
       const pageDocId = page.spaceDoc.guid;
       revertUpdate(page.spaceDoc, update, key => {
-        assertEquals(key, 'blocks'); // only expect this value is 'blocks'
+        if (key !== 'blocks') {
+          throw new Error('Only expect this value is "blocks"');
+        }
         return 'Map';
       });
 
diff --git a/packages/frontend/core/src/modules/workspace/services/transform.ts b/packages/frontend/core/src/modules/workspace/services/transform.ts
index 3588963396..ed26e4d750 100644
--- a/packages/frontend/core/src/modules/workspace/services/transform.ts
+++ b/packages/frontend/core/src/modules/workspace/services/transform.ts
@@ -1,4 +1,3 @@
-import { assertEquals } from '@blocksuite/affine/global/utils';
 import { Service } from '@toeverything/infra';
 import { applyUpdate } from 'yjs';
 
@@ -26,7 +25,11 @@ export class WorkspaceTransformService extends Service {
     accountId: string,
     flavour: string
   ): Promise<WorkspaceMetadata> => {
-    assertEquals(local.flavour, 'local');
+    if (local.flavour !== 'local') {
+      throw new Error(
+        'Only local workspace can be transformed to cloud workspace'
+      );
+    }
 
     const localDocStorage = local.engine.doc.storage;
     const localDocList = Array.from(local.docCollection.docs.keys());
diff --git a/packages/frontend/core/src/utils/toast.ts b/packages/frontend/core/src/utils/toast.ts
index d07e485ac3..16c1a3682c 100644
--- a/packages/frontend/core/src/utils/toast.ts
+++ b/packages/frontend/core/src/utils/toast.ts
@@ -1,13 +1,10 @@
 import type { ToastOptions } from '@affine/component';
 import { toast as basicToast } from '@affine/component';
-import { assertEquals } from '@blocksuite/affine/global/utils';
 
 export const toast = (message: string, options?: ToastOptions) => {
-  const modal = document.querySelector(
-    '[role=presentation]'
-  ) as HTMLDivElement | null;
-  if (modal) {
-    assertEquals(modal.constructor, HTMLDivElement, 'modal should be div');
+  const modal = document.querySelector<HTMLDivElement>('[role=presentation]');
+  if (modal && !(modal instanceof HTMLDivElement)) {
+    throw new Error('modal should be div');
   }
   return basicToast(message, {
     portal: modal || document.body,