diff --git a/lint/plugin.js b/lint/plugin.js
index 4a53289ca..479c20e4e 100644
--- a/lint/plugin.js
+++ b/lint/plugin.js
@@ -384,7 +384,7 @@ const noStaleViteAppPaths = {
   }
 }
 
-function createParentRelativeImportRule({ description, applies, message }) {
+function createParentRelativeImportRule({ description, applies, message, minDepth = 1 }) {
   return {
     meta: {
       docs: { description }
@@ -395,6 +395,8 @@ function createParentRelativeImportRule({ description, applies, message }) {
 
       function reportSource(node, source) {
         if (!source?.startsWith('../')) return
+        const depth = source.match(/^(?:\.\.\/)+/)?.[0].split('../').length - 1
+        if ((depth ?? 0) < minDepth) return
         if (/^(?:\.\.\/)+package\.json$/.test(source)) return
         context.report({ node, message })
       }
@@ -415,6 +417,13 @@ function createParentRelativeImportRule({ description, applies, message }) {
   }
 }
 
+const noDeepParentRelativeImports = createParentRelativeImportRule({
+  description: 'Disallow deep parent-relative imports — use package/test aliases instead',
+  applies: () => true,
+  message: 'Use an import alias instead of path drilling with ../.. imports.',
+  minDepth: 2
+})
+
 const noCoreParentRelativeImports = createParentRelativeImportRule({
   description: 'Disallow parent-relative imports in core internals — use #core/* aliases',
   applies: (file) =>
@@ -1371,6 +1380,7 @@ const plugin = {
     'no-legacy-app-imports': noLegacyAppImports,
     'no-vue-self-package-imports': noVueSelfPackageImports,
     'no-cross-package-source-imports': noCrossPackageSourceImports,
+    'no-deep-parent-relative-imports': noDeepParentRelativeImports,
     'no-core-parent-relative-imports': noCoreParentRelativeImports,
     'no-mcp-parent-relative-imports': noMcpParentRelativeImports,
     'no-vue-parent-relative-imports': noVueParentRelativeImports,
diff --git a/oxlint.json b/oxlint.json
index 045648dc7..154637f72 100644
--- a/oxlint.json
+++ b/oxlint.json
@@ -8,11 +8,21 @@
   },
   "rules": {
     "no-unused-vars": "warn",
-    "no-console": ["warn", { "allow": ["warn", "error", "debug", "time", "timeEnd"] }],
-    "eqeqeq": ["error", "always", { "null": "ignore" }],
+    "no-console": [
+      "warn",
+      {
+        "allow": ["warn", "error", "debug", "time", "timeEnd"]
+      }
+    ],
+    "eqeqeq": [
+      "error",
+      "always",
+      {
+        "null": "ignore"
+      }
+    ],
     "prefer-const": "error",
     "radix": "error",
-
     "no-restricted-imports": [
       "error",
       {
@@ -110,6 +120,7 @@
     "open-pencil/no-core-framework-imports": "error",
     "open-pencil/no-direct-storage-access": "error",
     "open-pencil/no-legacy-shim-files": "error",
+    "open-pencil/no-deep-parent-relative-imports": "error",
     "open-pencil/no-broad-double-cast": "error",
     "open-pencil/no-unknown-record-double-cast": "error",
     "open-pencil/no-ts-suppression-comments": "error",
@@ -117,7 +128,37 @@
     "open-pencil/no-reflect-delete-global-this-outside-tests": "error",
     "open-pencil/no-core-browser-globals": "error",
     "open-pencil/no-function-alias-imports": "error",
-    "open-pencil/max-composition-root-lines": ["error", { "max": 260 }]
+    "open-pencil/max-composition-root-lines": [
+      "error",
+      {
+        "max": 260
+      }
+    ],
+    "open-pencil/no-core-parent-relative-imports": "error",
+    "open-pencil/no-mcp-parent-relative-imports": "error",
+    "open-pencil/no-vue-parent-relative-imports": "error",
+    "open-pencil/no-stale-vite-app-paths": "error",
+    "open-pencil/no-cli-parent-relative-imports": "error",
+    "open-pencil/no-root-demo-module": "error",
+    "open-pencil/no-mcp-core-barrel-imports": "error",
+    "open-pencil/no-cli-core-barrel-imports": "error",
+    "open-pencil/no-script-core-barrel-imports": "error",
+    "open-pencil/no-core-self-package-imports": "error",
+    "open-pencil/no-inline-prompt-constants": "error",
+    "open-pencil/no-legacy-app-support-imports": "error",
+    "open-pencil/no-app-vue-core-barrel-imports": "error",
+    "open-pencil/no-legacy-test-app-imports": "error",
+    "open-pencil/no-test-core-source-imports": "error",
+    "open-pencil/no-direct-graph-emitter-subscriptions": "error",
+    "open-pencil/no-on-unmounted-in-composition-roots": "error",
+    "open-pencil/no-composable-state-wrappers": "error",
+    "open-pencil/prefer-vueuse-intervals": "error",
+    "open-pencil/prefer-vueuse-timeouts": "error",
+    "open-pencil/vue-component-file-pascal-case": "error",
+    "open-pencil/component-namespace-pascal-case": "error",
+    "open-pencil/non-component-source-directories-kebab-case": "error",
+    "open-pencil/no-component-root-sibling-folder": "error",
+    "open-pencil/no-flat-kiwi-modules": "error"
   },
   "overrides": [
     {
@@ -127,10 +168,21 @@
       }
     },
     {
-      "files": ["**/*.test.ts", "**/*.test.tsx"],
+      "files": ["tests/**/*.ts", "tests/**/*.tsx"],
       "rules": {
         "typescript/no-non-null-assertion": "off",
-        "open-pencil/no-silent-catch": "off"
+        "open-pencil/no-silent-catch": "off",
+        "no-unused-vars": "off",
+        "no-empty-function": "off",
+        "unicorn/no-nested-ternary": "off",
+        "typescript/consistent-type-imports": "off",
+        "open-pencil/no-inline-named-types": "off",
+        "no-console": "off",
+        "max-lines": "off",
+        "complexity": "off",
+        "radix": "off",
+        "prefer-const": "off",
+        "import/no-duplicates": "off"
       }
     },
     {
@@ -161,6 +213,45 @@
       "rules": {
         "open-pencil/no-raw-console-format": "error"
       }
+    },
+    {
+      "files": [
+        "tests/engine/copy.test.ts",
+        "tests/engine/editor/selection/**/*.test.ts",
+        "tests/engine/fig/**/*.test.ts",
+        "tests/engine/font-normalize-export.test.ts",
+        "tests/engine/matrix.test.ts",
+        "tests/engine/mcp-stdio.test.ts",
+        "tests/engine/nudge.test.ts",
+        "tests/engine/okhcl-toggle-conversion.test.ts",
+        "tests/engine/okhcl-ui-logic.test.ts",
+        "tests/engine/plugin-data.test.ts",
+        "tests/engine/render-cache.test.ts",
+        "tests/engine/render/jsx/**/*.test.ts",
+        "tests/engine/text-edit-undo.test.ts"
+      ],
+      "rules": {
+        "typescript/no-non-null-assertion": "error"
+      }
+    },
+    {
+      "files": ["tests/**/*.spec.ts"],
+      "rules": {
+        "typescript/no-non-null-assertion": "off",
+        "open-pencil/no-silent-catch": "off",
+        "no-unused-vars": "off",
+        "no-empty-function": "off",
+        "unicorn/no-nested-ternary": "off"
+      }
+    },
+    {
+      "files": ["scripts/**/*.ts"],
+      "rules": {
+        "no-console": "off",
+        "typescript/no-non-null-assertion": "off",
+        "open-pencil/no-hand-rolled-color": "off",
+        "radix": "off"
+      }
     }
   ],
   "ignorePatterns": ["node_modules", "dist", "desktop", "*.config.*"]
diff --git a/oxlint.structure.json b/oxlint.structure.json
deleted file mode 100644
index a45edd079..000000000
--- a/oxlint.structure.json
+++ /dev/null
@@ -1,85 +0,0 @@
-{
-  "$schema": "./node_modules/oxlint/configuration_schema.json",
-  "jsPlugins": ["./lint/plugin.js"],
-  "env": {
-    "browser": true,
-    "es2024": true
-  },
-  "overrides": [
-    {
-      "files": ["tests/**/*.ts"],
-      "rules": {
-        "no-unused-vars": "off"
-      }
-    },
-    {
-      "files": ["packages/core/src/kiwi/kiwi-schema/**"],
-      "rules": {
-        "typescript/no-explicit-any": "off"
-      }
-    },
-    {
-      "files": [
-        "tests/engine/copy.test.ts",
-        "tests/engine/editor/selection/**/*.test.ts",
-        "tests/engine/fig/**/*.test.ts",
-        "tests/engine/font-normalize-export.test.ts",
-        "tests/engine/matrix.test.ts",
-        "tests/engine/mcp-stdio.test.ts",
-        "tests/engine/nudge.test.ts",
-        "tests/engine/okhcl-toggle-conversion.test.ts",
-        "tests/engine/okhcl-ui-logic.test.ts",
-        "tests/engine/plugin-data.test.ts",
-        "tests/engine/render-cache.test.ts",
-        "tests/engine/render/jsx/**/*.test.ts",
-        "tests/engine/text-edit-undo.test.ts"
-      ],
-      "rules": {
-        "typescript/no-non-null-assertion": "error"
-      }
-    }
-  ],
-  "rules": {
-    "open-pencil/no-legacy-app-imports": "error",
-    "open-pencil/no-vue-self-package-imports": "error",
-    "open-pencil/no-cross-package-source-imports": "error",
-    "open-pencil/no-core-parent-relative-imports": "error",
-    "open-pencil/no-mcp-parent-relative-imports": "error",
-    "open-pencil/no-vue-parent-relative-imports": "error",
-    "open-pencil/no-stale-vite-app-paths": "error",
-    "open-pencil/no-cli-parent-relative-imports": "error",
-    "open-pencil/no-root-demo-module": "error",
-    "open-pencil/no-mcp-core-barrel-imports": "error",
-    "open-pencil/no-cli-core-barrel-imports": "error",
-    "open-pencil/no-script-core-barrel-imports": "error",
-    "open-pencil/no-core-self-package-imports": "error",
-    "open-pencil/no-inline-prompt-constants": "error",
-    "open-pencil/no-legacy-app-support-imports": "error",
-    "open-pencil/no-app-vue-core-barrel-imports": "error",
-    "open-pencil/no-app-imports-in-packages": "error",
-    "open-pencil/no-core-framework-imports": "error",
-    "open-pencil/no-direct-storage-access": "error",
-    "open-pencil/no-legacy-shim-files": "error",
-    "open-pencil/no-legacy-test-app-imports": "error",
-    "open-pencil/no-test-core-source-imports": "error",
-    "open-pencil/no-broad-double-cast": "error",
-    "open-pencil/no-unknown-record-double-cast": "error",
-    "open-pencil/no-ts-suppression-comments": "error",
-    "open-pencil/no-function-type": "error",
-    "open-pencil/no-reflect-delete-global-this-outside-tests": "error",
-    "typescript/no-explicit-any": "error",
-    "open-pencil/no-core-browser-globals": "error",
-    "open-pencil/no-direct-graph-emitter-subscriptions": "error",
-    "open-pencil/no-on-unmounted-in-composition-roots": "error",
-    "open-pencil/no-composable-state-wrappers": "error",
-    "open-pencil/prefer-vueuse-intervals": "error",
-    "open-pencil/prefer-vueuse-timeouts": "error",
-    "open-pencil/max-composition-root-lines": ["error", { "max": 260 }],
-    "open-pencil/vue-component-file-pascal-case": "error",
-    "open-pencil/component-namespace-pascal-case": "error",
-    "open-pencil/non-component-source-directories-kebab-case": "error",
-    "open-pencil/no-component-root-sibling-folder": "error",
-    "open-pencil/no-flat-kiwi-modules": "error"
-  },
-  "ignorePatterns": ["node_modules", "dist", "desktop"]
-}
diff --git a/package.json b/package.json
index fb1861326..72da397d3 100644
--- a/package.json
+++ b/package.json
@@ -13,7 +13,7 @@
     "preview": "vite preview",
     "tauri": "tauri",
     "lint": "bun run lint:structure && oxlint -c oxlint.json --type-aware --type-check src/ packages/core/src/ packages/vue/src/ packages/cli/src/ packages/mcp/src/",
-    "lint:structure": "oxlint -c oxlint.structure.json vite.config.ts vite/ src/ packages/core/src/ packages/vue/src/ packages/cli/src/ packages/mcp/src/ tests/ scripts/",
+    "lint:structure": "oxlint -c oxlint.json vite.config.ts vite/ src/ packages/core/src/ packages/vue/src/ packages/cli/src/ packages/mcp/src/ tests/ scripts/",
     "format": "oxfmt --write src/ packages/core/src/ packages/cli/src/ packages/mcp/src/ packages/vue/src/ tests",
     "check": "bun run lint && tsgo --noEmit && bun run check:vue",
     "check:vue": "vue-tsc --noEmit -p tsconfig.json && vue-tsc --noEmit -p packages/vue/tsconfig.json",
diff --git a/tests/e2e/app-menu.spec.ts b/tests/e2e/app-menu.spec.ts
index 7d248fa37..261a7d60f 100644
--- a/tests/e2e/app-menu.spec.ts
+++ b/tests/e2e/app-menu.spec.ts
@@ -1,7 +1,6 @@
+import { CanvasHelper } from '#tests/helpers/canvas'
 import { expect, test, type Page } from '@playwright/test'
 
-import { CanvasHelper } from '../helpers/canvas'
-
 let page: Page
 let canvas: CanvasHelper
 
diff --git a/tests/e2e/auto-layout.spec.ts b/tests/e2e/auto-layout.spec.ts
index b6e37a1b8..caaba798f 100644
--- a/tests/e2e/auto-layout.spec.ts
+++ b/tests/e2e/auto-layout.spec.ts
@@ -1,8 +1,7 @@
+import { CanvasHelper } from '#tests/helpers/canvas'
+import { getSelectedNode, getNodeById } from '#tests/helpers/store'
 import { test, expect, type Page } from '@playwright/test'
 
-import { CanvasHelper } from '../helpers/canvas'
-import { getSelectedNode, getNodeById } from '../helpers/store'
-
 let page: Page
 let canvas: CanvasHelper
 let frameId: string
diff --git a/tests/e2e/autosave.spec.ts b/tests/e2e/autosave.spec.ts
index 7b39cc17b..85a38fbf9 100644
--- a/tests/e2e/autosave.spec.ts
+++ b/tests/e2e/autosave.spec.ts
@@ -1,7 +1,6 @@
+import { CanvasHelper } from '#tests/helpers/canvas'
 import { expect, test, type Page } from '@playwright/test'
 
-import { CanvasHelper } from '../helpers/canvas'
-
 let page: Page
 let canvas: CanvasHelper
 
diff --git a/tests/e2e/canvas-manipulation.spec.ts b/tests/e2e/canvas-manipulation.spec.ts
index e52b65c37..843e81d20 100644
--- a/tests/e2e/canvas-manipulation.spec.ts
+++ b/tests/e2e/canvas-manipulation.spec.ts
@@ -1,8 +1,7 @@
+import { CanvasHelper } from '#tests/helpers/canvas'
+import { getSelectedIds, getPageChildren, getSelectedNode, getNodeById } from '#tests/helpers/store'
 import { test, expect, type Page } from '@playwright/test'
 
-import { CanvasHelper } from '../helpers/canvas'
-import { getSelectedIds, getPageChildren, getSelectedNode, getNodeById } from '../helpers/store'
-
 let page: Page
 let canvas: CanvasHelper
 
diff --git a/tests/e2e/chat-panel.spec.ts b/tests/e2e/chat-panel.spec.ts
index 8e21dca73..69650c427 100644
--- a/tests/e2e/chat-panel.spec.ts
+++ b/tests/e2e/chat-panel.spec.ts
@@ -1,7 +1,6 @@
+import { CanvasHelper } from '#tests/helpers/canvas'
 import { expect, test, type Page } from '@playwright/test'
 
-import { CanvasHelper } from '../helpers/canvas'
-
 const USE_REAL_LLM = process.env.TEST_REAL_LLM === '1'
 const OPENROUTER_KEY = process.env.OPENROUTER_API_KEY ?? ''
 
diff --git a/tests/e2e/code-panel.spec.ts b/tests/e2e/code-panel.spec.ts
index 32dc83fb0..d1282ca97 100644
--- a/tests/e2e/code-panel.spec.ts
+++ b/tests/e2e/code-panel.spec.ts
@@ -1,7 +1,6 @@
+import { CanvasHelper } from '#tests/helpers/canvas'
 import { expect, test, type Page } from '@playwright/test'
 
-import { CanvasHelper } from '../helpers/canvas'
-
 let page: Page
 let canvas: CanvasHelper
 
diff --git a/tests/e2e/color-picker-demo-card.spec.ts b/tests/e2e/color-picker-demo-card.spec.ts
index 36904348f..06f7e47a7 100644
--- a/tests/e2e/color-picker-demo-card.spec.ts
+++ b/tests/e2e/color-picker-demo-card.spec.ts
@@ -1,7 +1,6 @@
+import { CanvasHelper } from '#tests/helpers/canvas'
 import { expect, test } from '@playwright/test'
 
-import { CanvasHelper } from '../helpers/canvas'
-
 async function dragSlider(
   page: Parameters<typeof test>[0]['page'],
   canvas: CanvasHelper,
diff --git a/tests/e2e/color-picker.spec.ts b/tests/e2e/color-picker.spec.ts
index 4a09dceda..decfef89c 100644
--- a/tests/e2e/color-picker.spec.ts
+++ b/tests/e2e/color-picker.spec.ts
@@ -1,7 +1,6 @@
+import { CanvasHelper } from '#tests/helpers/canvas'
 import { expect, test, type Page } from '@playwright/test'
 
-import { CanvasHelper } from '../helpers/canvas'
-
 let page: Page
 let canvas: CanvasHelper
 
diff --git a/tests/e2e/components.spec.ts b/tests/e2e/components.spec.ts
index 683d5e1ae..34ca4180a 100644
--- a/tests/e2e/components.spec.ts
+++ b/tests/e2e/components.spec.ts
@@ -1,7 +1,6 @@
+import { CanvasHelper } from '#tests/helpers/canvas'
 import { expect, test, type Page } from '@playwright/test'
 
-import { CanvasHelper } from '../helpers/canvas'
-
 let page: Page
 let canvas: CanvasHelper
 
diff --git a/tests/e2e/context-menu.spec.ts b/tests/e2e/context-menu.spec.ts
index 471ac2900..40d3d98ab 100644
--- a/tests/e2e/context-menu.spec.ts
+++ b/tests/e2e/context-menu.spec.ts
@@ -1,7 +1,6 @@
+import { CanvasHelper } from '#tests/helpers/canvas'
 import { expect, test, type Page } from '@playwright/test'
 
-import { CanvasHelper } from '../helpers/canvas'
-
 let page: Page
 let canvas: CanvasHelper
 
diff --git a/tests/e2e/copy-paste.spec.ts b/tests/e2e/copy-paste.spec.ts
index 8300914cc..4e548d552 100644
--- a/tests/e2e/copy-paste.spec.ts
+++ b/tests/e2e/copy-paste.spec.ts
@@ -1,7 +1,6 @@
+import { CanvasHelper } from '#tests/helpers/canvas'
 import { expect, test, type Page } from '@playwright/test'
 
-import { CanvasHelper } from '../helpers/canvas'
-
 let page: Page
 let canvas: CanvasHelper
 
diff --git a/tests/e2e/corner-stroke-toggles.spec.ts b/tests/e2e/corner-stroke-toggles.spec.ts
index 6f4be97ce..063e239c3 100644
--- a/tests/e2e/corner-stroke-toggles.spec.ts
+++ b/tests/e2e/corner-stroke-toggles.spec.ts
@@ -1,7 +1,6 @@
+import { CanvasHelper } from '#tests/helpers/canvas'
 import { expect, test, type Page } from '@playwright/test'
 
-import { CanvasHelper } from '../helpers/canvas'
-
 let page: Page
 let canvas: CanvasHelper
 
diff --git a/tests/e2e/create-shapes.spec.ts b/tests/e2e/create-shapes.spec.ts
index 8a6391dc7..be542e77d 100644
--- a/tests/e2e/create-shapes.spec.ts
+++ b/tests/e2e/create-shapes.spec.ts
@@ -1,7 +1,6 @@
+import { CanvasHelper } from '#tests/helpers/canvas'
 import { test, expect, type Page } from '@playwright/test'
 
-import { CanvasHelper } from '../helpers/canvas'
-
 let page: Page
 let canvas: CanvasHelper
 
diff --git a/tests/e2e/design-panel.spec.ts b/tests/e2e/design-panel.spec.ts
index 4e8c511b4..6b75e6273 100644
--- a/tests/e2e/design-panel.spec.ts
+++ b/tests/e2e/design-panel.spec.ts
@@ -1,7 +1,6 @@
+import { CanvasHelper } from '#tests/helpers/canvas'
 import { expect, test, type Page } from '@playwright/test'
 
-import { CanvasHelper } from '../helpers/canvas'
-
 let page: Page
 let canvas: CanvasHelper
 
diff --git a/tests/e2e/duplicate-undo.spec.ts b/tests/e2e/duplicate-undo.spec.ts
index b2d3416c1..292cc0c93 100644
--- a/tests/e2e/duplicate-undo.spec.ts
+++ b/tests/e2e/duplicate-undo.spec.ts
@@ -1,7 +1,6 @@
+import { CanvasHelper } from '#tests/helpers/canvas'
 import { expect, test, type Page } from '@playwright/test'
 
-import { CanvasHelper } from '../helpers/canvas'
-
 let page: Page
 let canvas: CanvasHelper
 
diff --git a/tests/e2e/effects.spec.ts b/tests/e2e/effects.spec.ts
index bed090d88..548d7e467 100644
--- a/tests/e2e/effects.spec.ts
+++ b/tests/e2e/effects.spec.ts
@@ -1,7 +1,6 @@
+import { CanvasHelper } from '#tests/helpers/canvas'
 import { test, expect, type Page } from '@playwright/test'
 
-import { CanvasHelper } from '../helpers/canvas'
-
 let page: Page
 let canvas: CanvasHelper
 
diff --git a/tests/e2e/export.spec.ts b/tests/e2e/export.spec.ts
index 47a652f2b..00019673c 100644
--- a/tests/e2e/export.spec.ts
+++ b/tests/e2e/export.spec.ts
@@ -1,7 +1,6 @@
+import { CanvasHelper } from '#tests/helpers/canvas'
 import { test, expect, type Page } from '@playwright/test'
 
-import { CanvasHelper } from '../helpers/canvas'
-
 let page: Page
 let canvas: CanvasHelper
 
diff --git a/tests/e2e/font-settings.spec.ts b/tests/e2e/font-settings.spec.ts
index c9f82b5cb..82beb830d 100644
--- a/tests/e2e/font-settings.spec.ts
+++ b/tests/e2e/font-settings.spec.ts
@@ -1,7 +1,6 @@
+import { CanvasHelper } from '#tests/helpers/canvas'
 import { expect, test } from '@playwright/test'
 
-import { CanvasHelper } from '../helpers/canvas'
-
 test('font settings popover is available from typography panel', async ({ page }) => {
   await page.goto('/')
   const canvas = new CanvasHelper(page)
diff --git a/tests/e2e/frame-overlays.spec.ts b/tests/e2e/frame-overlays.spec.ts
index ce6f2c26e..3f4dc7380 100644
--- a/tests/e2e/frame-overlays.spec.ts
+++ b/tests/e2e/frame-overlays.spec.ts
@@ -1,7 +1,6 @@
+import { CanvasHelper } from '#tests/helpers/canvas'
 import { test, expect, type Page } from '@playwright/test'
 
-import { CanvasHelper } from '../helpers/canvas'
-
 let page: Page
 let canvas: CanvasHelper
 
diff --git a/tests/e2e/keyboard-shortcuts.spec.ts b/tests/e2e/keyboard-shortcuts.spec.ts
index d12521c94..01722de63 100644
--- a/tests/e2e/keyboard-shortcuts.spec.ts
+++ b/tests/e2e/keyboard-shortcuts.spec.ts
@@ -1,7 +1,6 @@
+import { CanvasHelper } from '#tests/helpers/canvas'
 import { expect, test, type Page } from '@playwright/test'
 
-import { CanvasHelper } from '../helpers/canvas'
-
 let page: Page
 let canvas: CanvasHelper
 
diff --git a/tests/e2e/layers-panel.spec.ts b/tests/e2e/layers-panel.spec.ts
index d6a30291e..9123fcaa9 100644
--- a/tests/e2e/layers-panel.spec.ts
+++ b/tests/e2e/layers-panel.spec.ts
@@ -1,7 +1,6 @@
+import { CanvasHelper } from '#tests/helpers/canvas'
 import { test, expect, type Page } from '@playwright/test'
 
-import { CanvasHelper } from '../helpers/canvas'
-
 let page: Page
 let canvas: CanvasHelper
 
diff --git a/tests/e2e/multi-page.spec.ts b/tests/e2e/multi-page.spec.ts
index 8cbefc5e8..67baac679 100644
--- a/tests/e2e/multi-page.spec.ts
+++ b/tests/e2e/multi-page.spec.ts
@@ -1,7 +1,6 @@
+import { CanvasHelper } from '#tests/helpers/canvas'
 import { expect, test, type Page } from '@playwright/test'
 
-import { CanvasHelper } from '../helpers/canvas'
-
 let page: Page
 let canvas: CanvasHelper
 
diff --git a/tests/e2e/panels.spec.ts b/tests/e2e/panels.spec.ts
index 2244f3066..44f035a0b 100644
--- a/tests/e2e/panels.spec.ts
+++ b/tests/e2e/panels.spec.ts
@@ -1,7 +1,6 @@
+import { CanvasHelper } from '#tests/helpers/canvas'
 import { test, expect, type Page } from '@playwright/test'
 
-import { CanvasHelper } from '../helpers/canvas'
-
 let page: Page
 let canvas: CanvasHelper
 
diff --git a/tests/e2e/perf.spec.ts b/tests/e2e/perf.spec.ts
index 48effef0a..7aa861c17 100644
--- a/tests/e2e/perf.spec.ts
+++ b/tests/e2e/perf.spec.ts
@@ -1,7 +1,6 @@
+import { CanvasHelper } from '#tests/helpers/canvas'
 import { test, expect } from '@playwright/test'
 
-import { CanvasHelper } from '../helpers/canvas'
-
 const NODE_COUNT = 500
 const ITERATIONS = 200
 
diff --git a/tests/e2e/properties-panel.spec.ts b/tests/e2e/properties-panel.spec.ts
index 21d8c3f45..4b275d9d7 100644
--- a/tests/e2e/properties-panel.spec.ts
+++ b/tests/e2e/properties-panel.spec.ts
@@ -1,8 +1,7 @@
+import { CanvasHelper } from '#tests/helpers/canvas'
+import { getSelectedNode, getPageChildren } from '#tests/helpers/store'
 import { test, expect, type Page } from '@playwright/test'
 
-import { CanvasHelper } from '../helpers/canvas'
-import { getSelectedNode, getPageChildren } from '../helpers/store'
-
 let page: Page
 let canvas: CanvasHelper
 
diff --git a/tests/e2e/property-visibility.spec.ts b/tests/e2e/property-visibility.spec.ts
index 740537dab..4bab3286e 100644
--- a/tests/e2e/property-visibility.spec.ts
+++ b/tests/e2e/property-visibility.spec.ts
@@ -1,7 +1,6 @@
+import { CanvasHelper } from '#tests/helpers/canvas'
 import { expect, test, type Page } from '@playwright/test'
 
-import { CanvasHelper } from '../helpers/canvas'
-
 let page: Page
 let canvas: CanvasHelper
 
diff --git a/tests/e2e/scene-cache.spec.ts b/tests/e2e/scene-cache.spec.ts
index 0673f42c0..eaae6ec50 100644
--- a/tests/e2e/scene-cache.spec.ts
+++ b/tests/e2e/scene-cache.spec.ts
@@ -1,7 +1,6 @@
+import { CanvasHelper } from '#tests/helpers/canvas'
 import { test, expect } from '@playwright/test'
 
-import { CanvasHelper } from '../helpers/canvas'
-
 test.describe('SkPicture scene caching', () => {
   let helper: CanvasHelper
 
diff --git a/tests/e2e/section-tool.spec.ts b/tests/e2e/section-tool.spec.ts
index e7ea76339..3ad8839f0 100644
--- a/tests/e2e/section-tool.spec.ts
+++ b/tests/e2e/section-tool.spec.ts
@@ -1,7 +1,6 @@
+import { CanvasHelper } from '#tests/helpers/canvas'
 import { expect, test, type Page } from '@playwright/test'
 
-import { CanvasHelper } from '../helpers/canvas'
-
 let page: Page
 let canvas: CanvasHelper
 
diff --git a/tests/e2e/snap-guides.spec.ts b/tests/e2e/snap-guides.spec.ts
index 0037fcb7d..32c2b1402 100644
--- a/tests/e2e/snap-guides.spec.ts
+++ b/tests/e2e/snap-guides.spec.ts
@@ -1,7 +1,6 @@
+import { CanvasHelper } from '#tests/helpers/canvas'
 import { test, expect, type Page } from '@playwright/test'
 
-import { CanvasHelper } from '../helpers/canvas'
-
 let page: Page
 let canvas: CanvasHelper
 
diff --git a/tests/e2e/stroke-picker.spec.ts b/tests/e2e/stroke-picker.spec.ts
index 0ad8eda4d..81b389db3 100644
--- a/tests/e2e/stroke-picker.spec.ts
+++ b/tests/e2e/stroke-picker.spec.ts
@@ -1,7 +1,6 @@
+import { CanvasHelper } from '#tests/helpers/canvas'
 import { expect, test, type Page } from '@playwright/test'
 
-import { CanvasHelper } from '../helpers/canvas'
-
 async function dragSlider(page: Page, canvas: CanvasHelper, testId: string, ratio: number) {
   const slider = page.locator(`[data-test-id="${testId}"] input[type="range"]`)
   const box = await slider.boundingBox()
diff --git a/tests/e2e/text-editing.spec.ts b/tests/e2e/text-editing.spec.ts
index 7be98ad36..203ae11c6 100644
--- a/tests/e2e/text-editing.spec.ts
+++ b/tests/e2e/text-editing.spec.ts
@@ -1,7 +1,6 @@
+import { CanvasHelper } from '#tests/helpers/canvas'
 import { expect, test, type Page } from '@playwright/test'
 
-import { CanvasHelper } from '../helpers/canvas'
-
 let page: Page
 let canvas: CanvasHelper
 
diff --git a/tests/e2e/text-formatting.spec.ts b/tests/e2e/text-formatting.spec.ts
index 2a5026ae1..b5ae351d7 100644
--- a/tests/e2e/text-formatting.spec.ts
+++ b/tests/e2e/text-formatting.spec.ts
@@ -1,8 +1,7 @@
+import { CanvasHelper } from '#tests/helpers/canvas'
+import { getSelectedNode, getEditingTextId, getNodeById } from '#tests/helpers/store'
 import { test, expect, type Page } from '@playwright/test'
 
-import { CanvasHelper } from '../helpers/canvas'
-import { getSelectedNode, getEditingTextId, getNodeById } from '../helpers/store'
-
 let page: Page
 let canvas: CanvasHelper
 
diff --git a/tests/e2e/toolbar.spec.ts b/tests/e2e/toolbar.spec.ts
index 346a57986..7b398228b 100644
--- a/tests/e2e/toolbar.spec.ts
+++ b/tests/e2e/toolbar.spec.ts
@@ -1,8 +1,7 @@
+import { CanvasHelper } from '#tests/helpers/canvas'
+import { getPageChildren } from '#tests/helpers/store'
 import { test, expect, type Page } from '@playwright/test'
 
-import { CanvasHelper } from '../helpers/canvas'
-import { getPageChildren } from '../helpers/store'
-
 let page: Page
 let canvas: CanvasHelper
 
diff --git a/tests/e2e/variables-dialog.spec.ts b/tests/e2e/variables-dialog.spec.ts
index 0abd71525..8b3c01576 100644
--- a/tests/e2e/variables-dialog.spec.ts
+++ b/tests/e2e/variables-dialog.spec.ts
@@ -1,7 +1,6 @@
+import { CanvasHelper } from '#tests/helpers/canvas'
 import { test, expect, type Page } from '@playwright/test'
 
-import { CanvasHelper } from '../helpers/canvas'
-
 let page: Page
 let canvas: CanvasHelper
 
@@ -63,15 +62,21 @@ test('add variable menu creates non-color variable types', async () => {
 
   await page.locator('[data-test-id="variables-add-variable"]').click()
   await page.locator('[data-test-id="variables-add-float"]').click()
-  await expect(page.locator('[data-test-id="variable-row"]').filter({ hasText: 'New number' })).toHaveCount(1)
+  await expect(
+    page.locator('[data-test-id="variable-row"]').filter({ hasText: 'New number' })
+  ).toHaveCount(1)
 
   await page.locator('[data-test-id="variables-add-variable"]').click()
   await page.locator('[data-test-id="variables-add-string"]').click()
-  await expect(page.locator('[data-test-id="variable-row"]').filter({ hasText: 'New text' })).toHaveCount(1)
+  await expect(
+    page.locator('[data-test-id="variable-row"]').filter({ hasText: 'New text' })
+  ).toHaveCount(1)
 
   await page.locator('[data-test-id="variables-add-variable"]').click()
   await page.locator('[data-test-id="variables-add-boolean"]').click()
-  await expect(page.locator('[data-test-id="variable-row"]').filter({ hasText: 'New boolean' })).toHaveCount(1)
+  await expect(
+    page.locator('[data-test-id="variable-row"]').filter({ hasText: 'New boolean' })
+  ).toHaveCount(1)
   canvas.assertNoErrors()
 })
 
diff --git a/tests/e2e/zoom-pan.spec.ts b/tests/e2e/zoom-pan.spec.ts
index a4d4ad270..1c4525d74 100644
--- a/tests/e2e/zoom-pan.spec.ts
+++ b/tests/e2e/zoom-pan.spec.ts
@@ -1,7 +1,6 @@
+import { CanvasHelper } from '#tests/helpers/canvas'
 import { test, expect } from '@playwright/test'
 
-import { CanvasHelper } from '../helpers/canvas'
-
 const NODE_COUNT = 200
 
 test.describe('Zoom and pan', () => {
diff --git a/tests/engine/acp-permission.test.ts b/tests/engine/acp-permission.test.ts
index 2ea9c8b80..7d1eb6e76 100644
--- a/tests/engine/acp-permission.test.ts
+++ b/tests/engine/acp-permission.test.ts
@@ -6,7 +6,7 @@ import {
   requestPermissionFromUser,
   respondToPermission,
   rejectCurrentPermission
-} from '../../src/app/ai/acp/permission'
+} from '@/app/ai/acp/permission'
 
 import type { RequestPermissionRequest } from '@agentclientprotocol/sdk'
 
diff --git a/tests/engine/acp-transport.test.ts b/tests/engine/acp-transport.test.ts
index ba7de2987..bf7649ef0 100644
--- a/tests/engine/acp-transport.test.ts
+++ b/tests/engine/acp-transport.test.ts
@@ -1,7 +1,7 @@
 import { describe, expect, test } from 'bun:test'
 
-import { mapUpdate } from '../../src/app/ai/acp/map-update'
-import { formatConnectionError, buildCrashChunks } from '../../src/app/ai/acp/transport'
+import { mapUpdate } from '@/app/ai/acp/map-update'
+import { formatConnectionError, buildCrashChunks } from '@/app/ai/acp/transport'
 
 import type { SessionUpdate } from '@agentclientprotocol/sdk'
 
diff --git a/tests/engine/copy.test.ts b/tests/engine/copy.test.ts
index 583163671..43926b05a 100644
--- a/tests/engine/copy.test.ts
+++ b/tests/engine/copy.test.ts
@@ -8,8 +8,7 @@ import {
   copyStyleRun,
   copyGeometryPaths
 } from '#core/scene-graph/copy'
-
-import { expectDefined } from '../helpers/assert'
+import { expectDefined } from '#tests/helpers/assert'
 
 import type { Fill, Stroke, Effect, StyleRun, GeometryPath } from '@open-pencil/core'
 
diff --git a/tests/engine/editor-store-path.test.ts b/tests/engine/editor-store-path.test.ts
index 2d8f8d4ad..e82485e06 100644
--- a/tests/engine/editor-store-path.test.ts
+++ b/tests/engine/editor-store-path.test.ts
@@ -1,6 +1,6 @@
 import { describe, test, expect } from 'bun:test'
 
-import { createEditorStore } from '../../src/app/editor/session'
+import { createEditorStore } from '@/app/editor/session'
 
 describe('setPlannedFilePath', () => {
   test('sets document name from file path', () => {
diff --git a/tests/engine/editor/clipboard/import-nodes.test.ts b/tests/engine/editor/clipboard/import-nodes.test.ts
index 58ce3cfb3..8b5b26e52 100644
--- a/tests/engine/editor/clipboard/import-nodes.test.ts
+++ b/tests/engine/editor/clipboard/import-nodes.test.ts
@@ -1,8 +1,8 @@
 import { describe, expect, it } from 'bun:test'
 
-import { importClipboardNodes } from '@open-pencil/core'
+import { createClipboardGraph } from '#tests/helpers/clipboard'
 
-import { createClipboardGraph } from '../../../helpers/clipboard'
+import { importClipboardNodes } from '@open-pencil/core'
 
 import type { NodeChange, SceneNode } from '@open-pencil/core'
 
diff --git a/tests/engine/editor/selection/alignment.test.ts b/tests/engine/editor/selection/alignment.test.ts
index aa8321c79..996c755cc 100644
--- a/tests/engine/editor/selection/alignment.test.ts
+++ b/tests/engine/editor/selection/alignment.test.ts
@@ -1,9 +1,9 @@
 import { describe, expect, test } from 'bun:test'
 
-import { SceneGraph } from '@open-pencil/core'
+import { expectDefined, getNodeOrThrow } from '#tests/helpers/assert'
+import { createRect, firstPageId } from '#tests/helpers/scene'
 
-import { expectDefined, getNodeOrThrow } from '../../../helpers/assert'
-import { createRect, firstPageId } from '../../../helpers/scene'
+import { SceneGraph } from '@open-pencil/core'
 
 describe('single-node alignment to parent', () => {
   function setup() {
diff --git a/tests/engine/editor/selection/flip.test.ts b/tests/engine/editor/selection/flip.test.ts
index 8f93ba50d..c10785887 100644
--- a/tests/engine/editor/selection/flip.test.ts
+++ b/tests/engine/editor/selection/flip.test.ts
@@ -1,9 +1,9 @@
 import { describe, expect, test } from 'bun:test'
 
-import { SceneGraph } from '@open-pencil/core'
+import { expectDefined, getNodeOrThrow } from '#tests/helpers/assert'
+import { createRect, firstPageId } from '#tests/helpers/scene'
 
-import { expectDefined, getNodeOrThrow } from '../../../helpers/assert'
-import { createRect, firstPageId } from '../../../helpers/scene'
+import { SceneGraph } from '@open-pencil/core'
 
 describe('flip', () => {
   test('flipX defaults to false', () => {
diff --git a/tests/engine/editor/selection/properties.test.ts b/tests/engine/editor/selection/properties.test.ts
index db4488044..36b3d2ce1 100644
--- a/tests/engine/editor/selection/properties.test.ts
+++ b/tests/engine/editor/selection/properties.test.ts
@@ -1,9 +1,9 @@
 import { describe, expect, test } from 'bun:test'
 
-import { SceneGraph } from '@open-pencil/core'
+import { expectDefined, getNodeOrThrow } from '#tests/helpers/assert'
+import { createRect, firstPageId } from '#tests/helpers/scene'
 
-import { expectDefined, getNodeOrThrow } from '../../../helpers/assert'
-import { createRect, firstPageId } from '../../../helpers/scene'
+import { SceneGraph } from '@open-pencil/core'
 
 describe('multi-node property merging', () => {
   test('same values merge to single value', () => {
diff --git a/tests/engine/eval-cli.test.ts b/tests/engine/eval-cli.test.ts
index 35fc01c24..11b92e28d 100644
--- a/tests/engine/eval-cli.test.ts
+++ b/tests/engine/eval-cli.test.ts
@@ -3,12 +3,13 @@ import { randomUUID } from 'crypto'
 import { tmpdir } from 'os'
 import { join } from 'path'
 
-import { heavy } from '../helpers/test-utils'
+import { cliSourcePath, repoPath } from '#tests/helpers/paths'
+import { heavy } from '#tests/helpers/test-utils'
 
 setDefaultTimeout(30_000)
 
-const CLI = join(import.meta.dir, '../../packages/cli/src/index.ts')
-const FIXTURE = join(import.meta.dir, '../fixtures/gold-preview.fig')
+const CLI = cliSourcePath('index.ts')
+const FIXTURE = repoPath('tests/fixtures/gold-preview.fig')
 
 async function run(
   args: string[],
diff --git a/tests/engine/external-link.test.ts b/tests/engine/external-link.test.ts
index c2d8b3cad..9ac1d80a7 100644
--- a/tests/engine/external-link.test.ts
+++ b/tests/engine/external-link.test.ts
@@ -1,8 +1,8 @@
 import { describe, test, expect, vi, beforeEach, afterEach } from 'bun:test'
 
-import { openExternalLink } from '@/app/shell/ui'
+import { clearTauriMocks, mockTauriIPC } from '#tests/helpers/tauri-mocks'
 
-import { clearTauriMocks, mockTauriIPC } from '../helpers/tauri-mocks'
+import { openExternalLink } from '@/app/shell/ui'
 
 /**
  * Tests for the browser (window.open) path only.
diff --git a/tests/engine/fig-export-worker.test.ts b/tests/engine/fig-export-worker.test.ts
index 37b42731d..c65d930bf 100644
--- a/tests/engine/fig-export-worker.test.ts
+++ b/tests/engine/fig-export-worker.test.ts
@@ -2,6 +2,8 @@ import { describe, test, expect, beforeAll, setDefaultTimeout } from 'bun:test'
 import { readFileSync } from 'fs'
 import { resolve } from 'path'
 
+import { heavy } from '#tests/helpers/test-utils'
+
 import {
   parseFigFile,
   exportFigFile,
@@ -10,8 +12,6 @@ import {
   SceneGraph
 } from '@open-pencil/core'
 
-import { heavy } from '../helpers/test-utils'
-
 setDefaultTimeout(30_000)
 
 const FIXTURES = resolve(import.meta.dir, '../fixtures')
diff --git a/tests/engine/fig/export/text.test.ts b/tests/engine/fig/export/text.test.ts
index 9492b30c1..c6000f183 100644
--- a/tests/engine/fig/export/text.test.ts
+++ b/tests/engine/fig/export/text.test.ts
@@ -1,6 +1,21 @@
 import { beforeAll, describe, expect, setDefaultTimeout, test } from 'bun:test'
 
 import { computeContentBounds } from '#core/io/formats/raster/render'
+import { expectDefined } from '#tests/helpers/assert'
+import {
+  FIXTURES,
+  parseFixture,
+  parseGoldPreviewFixture,
+  VALID_NODE_TYPES
+} from '#tests/helpers/fig-fixtures'
+import {
+  childMatching,
+  childNamed,
+  collectAllNodes,
+  countByType,
+  previewChild
+} from '#tests/helpers/fig-traversal'
+import { heavy } from '#tests/helpers/test-utils'
 
 import {
   parseFigFile,
@@ -14,22 +29,6 @@ import {
   type Fill
 } from '@open-pencil/core'
 
-import { expectDefined } from '../../../helpers/assert'
-import {
-  FIXTURES,
-  parseFixture,
-  parseGoldPreviewFixture,
-  VALID_NODE_TYPES
-} from '../../../helpers/fig-fixtures'
-import {
-  childMatching,
-  childNamed,
-  collectAllNodes,
-  countByType,
-  previewChild
-} from '../../../helpers/fig-traversal'
-import { heavy } from '../../../helpers/test-utils'
-
 setDefaultTimeout(60_000)
 
 describe('text node export', () => {
@@ -86,8 +85,7 @@ describe('text node export', () => {
     await initCodec()
 
     const { unzipSync, inflateSync } = await import('fflate')
-    const { decodeBinarySchema, compileSchema, ByteBuffer } =
-      await import('../../../../packages/core/src/kiwi/kiwi-schema')
+    const { decodeBinarySchema, compileSchema, ByteBuffer } = await import('#core/kiwi/kiwi-schema')
     const { parseFigKiwiChunks } = await import('@open-pencil/core')
 
     const graph = new SceneGraph()
@@ -146,8 +144,7 @@ describe('text node export', () => {
     await initCodec()
 
     const { unzipSync, inflateSync } = await import('fflate')
-    const { decodeBinarySchema, compileSchema, ByteBuffer } =
-      await import('../../../../packages/core/src/kiwi/kiwi-schema')
+    const { decodeBinarySchema, compileSchema, ByteBuffer } = await import('#core/kiwi/kiwi-schema')
     const { parseFigKiwiChunks } = await import('@open-pencil/core')
 
     const graph = new SceneGraph()
diff --git a/tests/engine/fig/heavy/fixtures.test.ts b/tests/engine/fig/heavy/fixtures.test.ts
index 7e62bfe11..9119f2d55 100644
--- a/tests/engine/fig/heavy/fixtures.test.ts
+++ b/tests/engine/fig/heavy/fixtures.test.ts
@@ -1,6 +1,20 @@
 import { beforeAll, describe, expect, setDefaultTimeout, test } from 'bun:test'
 
 import { computeContentBounds } from '#core/io/formats/raster/render'
+import { expectDefined } from '#tests/helpers/assert'
+import {
+  parseFixture,
+  parseGoldPreviewFixture,
+  VALID_NODE_TYPES
+} from '#tests/helpers/fig-fixtures'
+import {
+  childMatching,
+  childNamed,
+  collectAllNodes,
+  countByType,
+  previewChild
+} from '#tests/helpers/fig-traversal'
+import { heavy } from '#tests/helpers/test-utils'
 
 import {
   parseFigFile,
@@ -14,21 +28,6 @@ import {
   type Fill
 } from '@open-pencil/core'
 
-import { expectDefined } from '../../../helpers/assert'
-import {
-  parseFixture,
-  parseGoldPreviewFixture,
-  VALID_NODE_TYPES
-} from '../../../helpers/fig-fixtures'
-import {
-  childMatching,
-  childNamed,
-  collectAllNodes,
-  countByType,
-  previewChild
-} from '../../../helpers/fig-traversal'
-import { heavy } from '../../../helpers/test-utils'
-
 setDefaultTimeout(60_000)
 
 heavy('parse heavy .fig files', () => {
diff --git a/tests/engine/fig/import/basic.test.ts b/tests/engine/fig/import/basic.test.ts
index 162e2e39d..30d389a7d 100644
--- a/tests/engine/fig/import/basic.test.ts
+++ b/tests/engine/fig/import/basic.test.ts
@@ -1,6 +1,21 @@
 import { beforeAll, describe, expect, setDefaultTimeout, test } from 'bun:test'
 
 import { computeContentBounds } from '#core/io/formats/raster/render'
+import { expectDefined } from '#tests/helpers/assert'
+import {
+  FIXTURES,
+  parseFixture,
+  parseGoldPreviewFixture,
+  VALID_NODE_TYPES
+} from '#tests/helpers/fig-fixtures'
+import {
+  childMatching,
+  childNamed,
+  collectAllNodes,
+  countByType,
+  previewChild
+} from '#tests/helpers/fig-traversal'
+import { heavy } from '#tests/helpers/test-utils'
 
 import {
   parseFigFile,
@@ -14,22 +29,6 @@ import {
   type Fill
 } from '@open-pencil/core'
 
-import { expectDefined } from '../../../helpers/assert'
-import {
-  FIXTURES,
-  parseFixture,
-  parseGoldPreviewFixture,
-  VALID_NODE_TYPES
-} from '../../../helpers/fig-fixtures'
-import {
-  childMatching,
-  childNamed,
-  collectAllNodes,
-  countByType,
-  previewChild
-} from '../../../helpers/fig-traversal'
-import { heavy } from '../../../helpers/test-utils'
-
 setDefaultTimeout(60_000)
 
 let parsed: SceneGraph
diff --git a/tests/engine/fig/import/edge-cases.test.ts b/tests/engine/fig/import/edge-cases.test.ts
index 68b602dfc..3bb448154 100644
--- a/tests/engine/fig/import/edge-cases.test.ts
+++ b/tests/engine/fig/import/edge-cases.test.ts
@@ -1,6 +1,21 @@
 import { beforeAll, describe, expect, setDefaultTimeout, test } from 'bun:test'
 
 import { computeContentBounds } from '#core/io/formats/raster/render'
+import { expectDefined } from '#tests/helpers/assert'
+import {
+  FIXTURES,
+  parseFixture,
+  parseGoldPreviewFixture,
+  VALID_NODE_TYPES
+} from '#tests/helpers/fig-fixtures'
+import {
+  childMatching,
+  childNamed,
+  collectAllNodes,
+  countByType,
+  previewChild
+} from '#tests/helpers/fig-traversal'
+import { heavy } from '#tests/helpers/test-utils'
 
 import {
   parseFigFile,
@@ -14,22 +29,6 @@ import {
   type Fill
 } from '@open-pencil/core'
 
-import { expectDefined } from '../../../helpers/assert'
-import {
-  FIXTURES,
-  parseFixture,
-  parseGoldPreviewFixture,
-  VALID_NODE_TYPES
-} from '../../../helpers/fig-fixtures'
-import {
-  childMatching,
-  childNamed,
-  collectAllNodes,
-  countByType,
-  previewChild
-} from '../../../helpers/fig-traversal'
-import { heavy } from '../../../helpers/test-utils'
-
 setDefaultTimeout(60_000)
 
 describe('edge cases', () => {
diff --git a/tests/engine/fig/import/instance-regressions.test.ts b/tests/engine/fig/import/instance-regressions.test.ts
index 063678454..d0fecf202 100644
--- a/tests/engine/fig/import/instance-regressions.test.ts
+++ b/tests/engine/fig/import/instance-regressions.test.ts
@@ -1,6 +1,21 @@
 import { beforeAll, describe, expect, setDefaultTimeout, test } from 'bun:test'
 
 import { computeContentBounds } from '#core/io/formats/raster/render'
+import { expectDefined } from '#tests/helpers/assert'
+import {
+  FIXTURES,
+  parseFixture,
+  parseGoldPreviewFixture,
+  VALID_NODE_TYPES
+} from '#tests/helpers/fig-fixtures'
+import {
+  childMatching,
+  childNamed,
+  collectAllNodes,
+  countByType,
+  previewChild
+} from '#tests/helpers/fig-traversal'
+import { heavy } from '#tests/helpers/test-utils'
 
 import {
   parseFigFile,
@@ -14,22 +29,6 @@ import {
   type Fill
 } from '@open-pencil/core'
 
-import { expectDefined } from '../../../helpers/assert'
-import {
-  FIXTURES,
-  parseFixture,
-  parseGoldPreviewFixture,
-  VALID_NODE_TYPES
-} from '../../../helpers/fig-fixtures'
-import {
-  childMatching,
-  childNamed,
-  collectAllNodes,
-  countByType,
-  previewChild
-} from '../../../helpers/fig-traversal'
-import { heavy } from '../../../helpers/test-utils'
-
 setDefaultTimeout(60_000)
 
 let parsed: SceneGraph
diff --git a/tests/engine/fig/import/property-integrity.test.ts b/tests/engine/fig/import/property-integrity.test.ts
index cdcafd7f0..120d54347 100644
--- a/tests/engine/fig/import/property-integrity.test.ts
+++ b/tests/engine/fig/import/property-integrity.test.ts
@@ -1,6 +1,20 @@
 import { beforeAll, describe, expect, setDefaultTimeout, test } from 'bun:test'
 
 import { computeContentBounds } from '#core/io/formats/raster/render'
+import { expectDefined } from '#tests/helpers/assert'
+import {
+  parseFixture,
+  parseGoldPreviewFixture,
+  VALID_NODE_TYPES
+} from '#tests/helpers/fig-fixtures'
+import {
+  childMatching,
+  childNamed,
+  collectAllNodes,
+  countByType,
+  previewChild
+} from '#tests/helpers/fig-traversal'
+import { heavy } from '#tests/helpers/test-utils'
 
 import {
   parseFigFile,
@@ -14,21 +28,6 @@ import {
   type Fill
 } from '@open-pencil/core'
 
-import { expectDefined } from '../../../helpers/assert'
-import {
-  parseFixture,
-  parseGoldPreviewFixture,
-  VALID_NODE_TYPES
-} from '../../../helpers/fig-fixtures'
-import {
-  childMatching,
-  childNamed,
-  collectAllNodes,
-  countByType,
-  previewChild
-} from '../../../helpers/fig-traversal'
-import { heavy } from '../../../helpers/test-utils'
-
 setDefaultTimeout(60_000)
 
 let parsed: SceneGraph
diff --git a/tests/engine/fig/roundtrip/basic.test.ts b/tests/engine/fig/roundtrip/basic.test.ts
index 172d25b99..f8fc4fb9b 100644
--- a/tests/engine/fig/roundtrip/basic.test.ts
+++ b/tests/engine/fig/roundtrip/basic.test.ts
@@ -1,6 +1,21 @@
 import { beforeAll, describe, expect, setDefaultTimeout, test } from 'bun:test'
 
 import { computeContentBounds } from '#core/io/formats/raster/render'
+import { expectDefined } from '#tests/helpers/assert'
+import {
+  FIXTURES,
+  parseFixture,
+  parseGoldPreviewFixture,
+  VALID_NODE_TYPES
+} from '#tests/helpers/fig-fixtures'
+import {
+  childMatching,
+  childNamed,
+  collectAllNodes,
+  countByType,
+  previewChild
+} from '#tests/helpers/fig-traversal'
+import { heavy } from '#tests/helpers/test-utils'
 
 import {
   parseFigFile,
@@ -14,22 +29,6 @@ import {
   type Fill
 } from '@open-pencil/core'
 
-import { expectDefined } from '../../../helpers/assert'
-import {
-  FIXTURES,
-  parseFixture,
-  parseGoldPreviewFixture,
-  VALID_NODE_TYPES
-} from '../../../helpers/fig-fixtures'
-import {
-  childMatching,
-  childNamed,
-  collectAllNodes,
-  countByType,
-  previewChild
-} from '../../../helpers/fig-traversal'
-import { heavy } from '../../../helpers/test-utils'
-
 setDefaultTimeout(60_000)
 
 describe('roundtrip: export → re-import', () => {
diff --git a/tests/engine/fig/roundtrip/variables.test.ts b/tests/engine/fig/roundtrip/variables.test.ts
index dd74601a7..a5c3fa0a1 100644
--- a/tests/engine/fig/roundtrip/variables.test.ts
+++ b/tests/engine/fig/roundtrip/variables.test.ts
@@ -1,6 +1,21 @@
 import { beforeAll, describe, expect, setDefaultTimeout, test } from 'bun:test'
 
 import { computeContentBounds } from '#core/io/formats/raster/render'
+import { expectDefined } from '#tests/helpers/assert'
+import {
+  FIXTURES,
+  parseFixture,
+  parseGoldPreviewFixture,
+  VALID_NODE_TYPES
+} from '#tests/helpers/fig-fixtures'
+import {
+  childMatching,
+  childNamed,
+  collectAllNodes,
+  countByType,
+  previewChild
+} from '#tests/helpers/fig-traversal'
+import { heavy } from '#tests/helpers/test-utils'
 
 import {
   parseFigFile,
@@ -14,22 +29,6 @@ import {
   type Fill
 } from '@open-pencil/core'
 
-import { expectDefined } from '../../../helpers/assert'
-import {
-  FIXTURES,
-  parseFixture,
-  parseGoldPreviewFixture,
-  VALID_NODE_TYPES
-} from '../../../helpers/fig-fixtures'
-import {
-  childMatching,
-  childNamed,
-  collectAllNodes,
-  countByType,
-  previewChild
-} from '../../../helpers/fig-traversal'
-import { heavy } from '../../../helpers/test-utils'
-
 setDefaultTimeout(60_000)
 
 describe('variable roundtrip', () => {
diff --git a/tests/engine/font-normalize-export.test.ts b/tests/engine/font-normalize-export.test.ts
index 4e9a39b68..ff5ca38f9 100644
--- a/tests/engine/font-normalize-export.test.ts
+++ b/tests/engine/font-normalize-export.test.ts
@@ -1,8 +1,8 @@
 import { describe, test, expect, beforeAll } from 'bun:test'
 
-import { exportFigFile, parseFigFile, initCodec, SceneGraph } from '@open-pencil/core'
+import { expectDefined, getNodeOrThrow } from '#tests/helpers/assert'
 
-import { expectDefined, getNodeOrThrow } from '../helpers/assert'
+import { exportFigFile, parseFigFile, initCodec, SceneGraph } from '@open-pencil/core'
 
 beforeAll(async () => {
   await initCodec()
diff --git a/tests/engine/fonts.test.ts b/tests/engine/fonts.test.ts
index 0af267478..b190a28f6 100644
--- a/tests/engine/fonts.test.ts
+++ b/tests/engine/fonts.test.ts
@@ -13,6 +13,7 @@ import {
   fontFallbackEntry,
   fontFallbackManifest
 } from '@open-pencil/core'
+
 import type { CanvasKit, TypefaceFontProvider } from 'canvaskit-wasm'
 
 function pageId(graph: SceneGraph) {
diff --git a/tests/engine/layout/auto-layout.test.ts b/tests/engine/layout/auto-layout.test.ts
index 74b39c8f8..4243ea4ce 100644
--- a/tests/engine/layout/auto-layout.test.ts
+++ b/tests/engine/layout/auto-layout.test.ts
@@ -1,5 +1,7 @@
 import { describe, expect, test } from 'bun:test'
 
+import { autoFrame, loadFixtureGraph, pageId, rect } from '#tests/helpers/layout'
+
 import { createEditorStore } from '@/app/editor/session'
 import {
   computeLayout,
@@ -10,8 +12,6 @@ import {
   setTextMeasurer
 } from '@open-pencil/core'
 
-import { autoFrame, loadFixtureGraph, pageId, rect } from '../../helpers/layout'
-
 describe('Auto Layout', () => {
   describe('horizontal basic', () => {
     test('positions children left-to-right', () => {
diff --git a/tests/engine/layout/grid-layout.test.ts b/tests/engine/layout/grid-layout.test.ts
index be869af6b..496ae7570 100644
--- a/tests/engine/layout/grid-layout.test.ts
+++ b/tests/engine/layout/grid-layout.test.ts
@@ -1,8 +1,8 @@
 import { describe, expect, test } from 'bun:test'
 
-import { computeLayout, computeAllLayouts, FigmaAPI, SceneGraph } from '@open-pencil/core'
+import { autoFrame, fixed, fr, gridFrame, pageId, rect } from '#tests/helpers/layout'
 
-import { autoFrame, fixed, fr, gridFrame, pageId, rect } from '../../helpers/layout'
+import { computeLayout, computeAllLayouts, FigmaAPI, SceneGraph } from '@open-pencil/core'
 
 describe('Grid Layout', () => {
   describe('basic grid', () => {
diff --git a/tests/engine/matrix.test.ts b/tests/engine/matrix.test.ts
index a06a678ba..a33a8c02b 100644
--- a/tests/engine/matrix.test.ts
+++ b/tests/engine/matrix.test.ts
@@ -7,9 +7,9 @@
  */
 import { describe, test, expect } from 'bun:test'
 
-import { TransformMatrix } from '@open-pencil/core'
+import { expectDefined } from '#tests/helpers/assert'
 
-import { expectDefined } from '../helpers/assert'
+import { TransformMatrix } from '@open-pencil/core'
 
 describe('TransformMatrix.identity', () => {
   test('produces a 3x3 identity matrix', () => {
diff --git a/tests/engine/mcp-stdio.test.ts b/tests/engine/mcp-stdio.test.ts
index cac326c9e..b65c440a7 100644
--- a/tests/engine/mcp-stdio.test.ts
+++ b/tests/engine/mcp-stdio.test.ts
@@ -1,5 +1,6 @@
 import { describe, expect, test, beforeEach, afterEach } from 'bun:test'
 
+import { expectDefined, getNodeOrThrow } from '#tests/helpers/assert'
 import { WebSocketServer, type WebSocket } from 'ws'
 
 import {
@@ -10,8 +11,6 @@ import {
   executeRpcCommand
 } from '@open-pencil/core'
 
-import { expectDefined, getNodeOrThrow } from '../helpers/assert'
-
 import type { Client } from '@modelcontextprotocol/sdk/client/index.js'
 import type { StdioClientTransport } from '@modelcontextprotocol/sdk/client/stdio.js'
 import type { AddressInfo } from 'node:net'
diff --git a/tests/engine/nudge.test.ts b/tests/engine/nudge.test.ts
index 6b01d1952..b23bceac4 100644
--- a/tests/engine/nudge.test.ts
+++ b/tests/engine/nudge.test.ts
@@ -1,8 +1,8 @@
 import { describe, test, expect } from 'bun:test'
 
-import { createEditor } from '@open-pencil/core/editor'
+import { getNodeOrThrow } from '#tests/helpers/assert'
 
-import { getNodeOrThrow } from '../helpers/assert'
+import { createEditor } from '@open-pencil/core/editor'
 
 describe('nudgeSelected', () => {
   function setup() {
diff --git a/tests/engine/okhcl-toggle-conversion.test.ts b/tests/engine/okhcl-toggle-conversion.test.ts
index 5dcaec96d..3ce7b6488 100644
--- a/tests/engine/okhcl-toggle-conversion.test.ts
+++ b/tests/engine/okhcl-toggle-conversion.test.ts
@@ -1,5 +1,7 @@
 import { describe, expect, test } from 'bun:test'
 
+import { expectDefined, getNodeOrThrow } from '#tests/helpers/assert'
+
 import {
   clearNodeFillOkHCL,
   colorDistance,
@@ -9,8 +11,6 @@ import {
   setNodeFillOkHCL
 } from '@open-pencil/core'
 
-import { expectDefined, getNodeOrThrow } from '../helpers/assert'
-
 describe('OkHCL toggle conversion', () => {
   test('enabling OkHCL from an existing rgba fill preserves the visible color closely', () => {
     const graph = new SceneGraph()
diff --git a/tests/engine/okhcl-ui-logic.test.ts b/tests/engine/okhcl-ui-logic.test.ts
index 4fcba5a1b..e8d6aad35 100644
--- a/tests/engine/okhcl-ui-logic.test.ts
+++ b/tests/engine/okhcl-ui-logic.test.ts
@@ -1,5 +1,7 @@
 import { describe, expect, test } from 'bun:test'
 
+import { expectDefined, getNodeOrThrow } from '#tests/helpers/assert'
+
 import {
   clearNodeFillOkHCL,
   clearNodeStrokeOkHCL,
@@ -10,8 +12,6 @@ import {
   setNodeStrokeOkHCL
 } from '@open-pencil/core'
 
-import { expectDefined, getNodeOrThrow } from '../helpers/assert'
-
 describe('OkHCL metadata toggling', () => {
   test('can disable fill OkHCL metadata', () => {
     const graph = new SceneGraph()
diff --git a/tests/engine/plugin-data.test.ts b/tests/engine/plugin-data.test.ts
index 31ce04bcf..0c7d1fb33 100644
--- a/tests/engine/plugin-data.test.ts
+++ b/tests/engine/plugin-data.test.ts
@@ -1,6 +1,7 @@
 import { describe, expect, test } from 'bun:test'
 
 import { deduplicateNodeChangePluginData } from '#core/kiwi'
+import { expectDefined } from '#tests/helpers/assert'
 
 import {
   exportFigFile,
@@ -12,8 +13,6 @@ import {
   type NodeChange
 } from '@open-pencil/core'
 
-import { expectDefined } from '../helpers/assert'
-
 function doc(): NodeChange {
   return {
     guid: { sessionID: 0, localID: 0 },
diff --git a/tests/engine/render-cache.test.ts b/tests/engine/render-cache.test.ts
index 19bbaec85..c0531729a 100644
--- a/tests/engine/render-cache.test.ts
+++ b/tests/engine/render-cache.test.ts
@@ -3,6 +3,7 @@ import { readFileSync } from 'fs'
 import { resolve } from 'path'
 
 import { initCanvasKit } from '#cli/headless'
+import { expectDefined } from '#tests/helpers/assert'
 
 import {
   computeAllLayouts,
@@ -14,8 +15,6 @@ import {
   type SceneNode
 } from '@open-pencil/core'
 
-import { expectDefined } from '../helpers/assert'
-
 let graph: SceneGraph
 let movingNodeId: string
 let ck: Awaited<ReturnType<typeof initCanvasKit>>
diff --git a/tests/engine/render-text.test.ts b/tests/engine/render-text.test.ts
index c20fdf230..e9e742f1d 100644
--- a/tests/engine/render-text.test.ts
+++ b/tests/engine/render-text.test.ts
@@ -3,6 +3,7 @@ import { describe, test, expect, mock } from 'bun:test'
 import { initCanvasKit } from '#cli/headless'
 import { renderText } from '#core/canvas/scene'
 import { fontManager } from '#core/text/fonts'
+import { repoPath } from '#tests/helpers/paths'
 
 import { SceneGraph, SkiaRenderer as SkiaRendererClass } from '@open-pencil/core'
 import { detectTextDirection, resolveTextDirection } from '@open-pencil/core'
@@ -161,8 +162,7 @@ describe('renderText headless visual', () => {
     fontProvider.registerFont(interData, 'Inter')
     fontManager.markLoaded('Inter', 'Regular', interData)
 
-    const notoPath = new URL('../../tests/fixtures/fonts/NotoSansSC-Regular.ttf', import.meta.url)
-      .pathname
+    const notoPath = repoPath('tests/fixtures/fonts/NotoSansSC-Regular.ttf')
     const notoData = await Bun.file(notoPath).arrayBuffer()
     fontProvider.registerFont(notoData, 'Noto Sans SC')
     fontManager.setCJKFallbackFamily('Noto Sans SC')
diff --git a/tests/engine/render/jsx/builders.test.ts b/tests/engine/render/jsx/builders.test.ts
index 035b80b47..be82aa4d3 100644
--- a/tests/engine/render/jsx/builders.test.ts
+++ b/tests/engine/render/jsx/builders.test.ts
@@ -1,8 +1,8 @@
 import { describe, expect, it } from 'bun:test'
 
-import { Frame, Text, Rectangle, isTreeNode, node } from '@open-pencil/core'
+import { expectDefined } from '#tests/helpers/assert'
 
-import { expectDefined } from '../../../helpers/assert'
+import { Frame, Text, Rectangle, isTreeNode, node } from '@open-pencil/core'
 
 describe('TreeNode builders', () => {
   it('creates Frame tree node', () => {
diff --git a/tests/engine/render/jsx/grid-layout.test.ts b/tests/engine/render/jsx/grid-layout.test.ts
index 0740cf65a..11c725e5e 100644
--- a/tests/engine/render/jsx/grid-layout.test.ts
+++ b/tests/engine/render/jsx/grid-layout.test.ts
@@ -1,5 +1,8 @@
 import { describe, expect, it } from 'bun:test'
 
+import { expectDefined, getNodeOrThrow } from '#tests/helpers/assert'
+import { makeSceneGraph } from '#tests/helpers/scene'
+
 import {
   renderTree,
   renderJSX,
@@ -9,9 +12,6 @@ import {
   Rectangle
 } from '@open-pencil/core'
 
-import { expectDefined, getNodeOrThrow } from '../../../helpers/assert'
-import { makeSceneGraph } from '../../../helpers/scene'
-
 describe('grid layout rendering', () => {
   it('creates grid frame with template columns', async () => {
     const g = makeSceneGraph()
diff --git a/tests/engine/render/jsx/render-tree.test.ts b/tests/engine/render/jsx/render-tree.test.ts
index edc3ad952..d7be462a1 100644
--- a/tests/engine/render/jsx/render-tree.test.ts
+++ b/tests/engine/render/jsx/render-tree.test.ts
@@ -1,5 +1,8 @@
 import { describe, expect, it } from 'bun:test'
 
+import { expectDefined, getNodeOrThrow, childIdAt } from '#tests/helpers/assert'
+import { makeSceneGraph } from '#tests/helpers/scene'
+
 import {
   renderTree,
   renderJSX,
@@ -14,9 +17,6 @@ import {
   Section
 } from '@open-pencil/core'
 
-import { expectDefined, getNodeOrThrow, childIdAt } from '../../../helpers/assert'
-import { makeSceneGraph } from '../../../helpers/scene'
-
 describe('renderTree', () => {
   it('renders a simple frame', async () => {
     const g = makeSceneGraph()
diff --git a/tests/engine/render/jsx/text-props.test.ts b/tests/engine/render/jsx/text-props.test.ts
index 3951492bd..81f7f780d 100644
--- a/tests/engine/render/jsx/text-props.test.ts
+++ b/tests/engine/render/jsx/text-props.test.ts
@@ -1,9 +1,9 @@
 import { describe, expect, it } from 'bun:test'
 
-import { renderJSX, sceneNodeToJSX } from '@open-pencil/core'
+import { getNodeOrThrow, childIdAt } from '#tests/helpers/assert'
+import { makeSceneGraph } from '#tests/helpers/scene'
 
-import { getNodeOrThrow, childIdAt } from '../../../helpers/assert'
-import { makeSceneGraph } from '../../../helpers/scene'
+import { renderJSX, sceneNodeToJSX } from '@open-pencil/core'
 
 describe('text props round-trip', () => {
   it('lineHeight renders and exports', async () => {
diff --git a/tests/engine/tauri-document-io.test.ts b/tests/engine/tauri-document-io.test.ts
index 9dd290997..94b32bce4 100644
--- a/tests/engine/tauri-document-io.test.ts
+++ b/tests/engine/tauri-document-io.test.ts
@@ -1,11 +1,11 @@
 import { afterEach, describe, expect, test } from 'bun:test'
 
+import { clearTauriMocks, mockTauriIPC } from '#tests/helpers/tauri-mocks'
+
 import { readReloadSource } from '@/app/document/io/reload-source'
 import { chooseTauriFigSavePath } from '@/app/document/io/save-targets'
 import { createDocumentWriter } from '@/app/document/io/write'
 
-import { clearTauriMocks, mockTauriIPC } from '../helpers/tauri-mocks'
-
 afterEach(async () => {
   await clearTauriMocks()
   Reflect.deleteProperty(globalThis, 'window')
diff --git a/tests/engine/tauri-file-actions.test.ts b/tests/engine/tauri-file-actions.test.ts
index d5c9df618..73b81b290 100644
--- a/tests/engine/tauri-file-actions.test.ts
+++ b/tests/engine/tauri-file-actions.test.ts
@@ -1,11 +1,11 @@
 import { afterEach, describe, expect, test } from 'bun:test'
 
+import { clearTauriMocks, mockTauriIPC } from '#tests/helpers/tauri-mocks'
+
 import { saveExportedFile } from '@/app/document/export/files'
 import { watchTauriFile } from '@/app/document/io/watch-targets'
 import { chooseTauriOpenPath, readTauriDesignFile } from '@/app/shell/menu/files'
 
-import { clearTauriMocks, mockTauriIPC } from '../helpers/tauri-mocks'
-
 afterEach(async () => {
   await clearTauriMocks()
   Reflect.deleteProperty(globalThis, 'window')
diff --git a/tests/engine/tauri-font-cache.test.ts b/tests/engine/tauri-font-cache.test.ts
index 9a27aeb52..0a5e7140b 100644
--- a/tests/engine/tauri-font-cache.test.ts
+++ b/tests/engine/tauri-font-cache.test.ts
@@ -1,7 +1,8 @@
 import { afterEach, describe, expect, test } from 'bun:test'
 
+import { clearTauriMocks, mockTauriIPC } from '#tests/helpers/tauri-mocks'
+
 import { clearDownloadedFontCache, downloadedFontCacheSummary } from '@/app/editor/fonts/cache'
-import { clearTauriMocks, mockTauriIPC } from '../helpers/tauri-mocks'
 
 const encoder = new TextEncoder()
 
@@ -14,27 +15,31 @@ describe('Tauri downloaded font cache helpers', () => {
     await mockTauriIPC((cmd, args) => {
       expect(cmd).toBe('plugin:fs|read_file')
       expect(args).toMatchObject({ path: 'font-cache/v1/manifest.json' })
-      return [...encoder.encode(JSON.stringify({
-        version: 1,
-        entries: {
-          one: {
-            family: 'Noto Sans SC',
-            style: 'Regular',
-            file: 'one.ttf',
-            byteLength: 10,
-            sha256: 'a',
-            updatedAt: 100
-          },
-          two: {
-            family: 'Noto Naskh Arabic',
-            style: 'Regular',
-            file: 'two.ttf',
-            byteLength: 25,
-            sha256: 'b',
-            updatedAt: 250
-          }
-        }
-      }))]
+      return [
+        ...encoder.encode(
+          JSON.stringify({
+            version: 1,
+            entries: {
+              one: {
+                family: 'Noto Sans SC',
+                style: 'Regular',
+                file: 'one.ttf',
+                byteLength: 10,
+                sha256: 'a',
+                updatedAt: 100
+              },
+              two: {
+                family: 'Noto Naskh Arabic',
+                style: 'Regular',
+                file: 'two.ttf',
+                byteLength: 25,
+                sha256: 'b',
+                updatedAt: 250
+              }
+            }
+          })
+        )
+      ]
     })
 
     await expect(downloadedFontCacheSummary()).resolves.toEqual({
diff --git a/tests/engine/tauri-fonts.test.ts b/tests/engine/tauri-fonts.test.ts
index affc7f00a..7a6d07772 100644
--- a/tests/engine/tauri-fonts.test.ts
+++ b/tests/engine/tauri-fonts.test.ts
@@ -1,8 +1,8 @@
 import { afterEach, describe, expect, test, vi } from 'bun:test'
 
-import { fontManager } from '@open-pencil/core/text'
+import { clearTauriMocks, mockTauriIPC } from '#tests/helpers/tauri-mocks'
 
-import { clearTauriMocks, mockTauriIPC } from '../helpers/tauri-mocks'
+import { fontManager } from '@open-pencil/core/text'
 
 class MockFontFace {
   family: string
diff --git a/tests/engine/tauri-processes.test.ts b/tests/engine/tauri-processes.test.ts
index eda46029d..b41c09c2f 100644
--- a/tests/engine/tauri-processes.test.ts
+++ b/tests/engine/tauri-processes.test.ts
@@ -1,12 +1,11 @@
 import { afterEach, describe, expect, test, vi } from 'bun:test'
 
+import { clearTauriMocks, mockTauriIPC } from '#tests/helpers/tauri-mocks'
 import { ref } from 'vue'
 
 import { spawnAcpProcess } from '@/app/ai/acp/process'
 import { checkForAppUpdate } from '@/app/shell/updater'
 
-import { clearTauriMocks, mockTauriIPC } from '../helpers/tauri-mocks'
-
 afterEach(async () => {
   await clearTauriMocks()
   vi.restoreAllMocks()
diff --git a/tests/engine/tauri-remaining-integrations.test.ts b/tests/engine/tauri-remaining-integrations.test.ts
index 98bf76fff..8684b28c9 100644
--- a/tests/engine/tauri-remaining-integrations.test.ts
+++ b/tests/engine/tauri-remaining-integrations.test.ts
@@ -1,11 +1,11 @@
 import { afterEach, describe, expect, test, vi } from 'bun:test'
 
+import { clearTauriMocks, installTauriMockWindow, mockTauriIPC } from '#tests/helpers/tauri-mocks'
+
 import { createACPTransport } from '@/app/ai/chat/transports'
 import { ensureTauriParentDirectory } from '@/app/automation/bridge/file-handlers'
 import { spawnMCPIfNeeded } from '@/app/automation/mcp/spawn'
 
-import { clearTauriMocks, installTauriMockWindow, mockTauriIPC } from '../helpers/tauri-mocks'
-
 import type { ACPChatTransport } from '@/app/ai/acp/transport'
 
 afterEach(async () => {
diff --git a/tests/engine/text-edit-undo.test.ts b/tests/engine/text-edit-undo.test.ts
index 2e6ab864c..e70c31c63 100644
--- a/tests/engine/text-edit-undo.test.ts
+++ b/tests/engine/text-edit-undo.test.ts
@@ -1,10 +1,10 @@
 import { describe, test, expect } from 'bun:test'
 
+import { expectDefined, getNodeOrThrow } from '#tests/helpers/assert'
+
 import { SceneGraph, TextEditor, UndoManager } from '@open-pencil/core'
 import { createTextActions } from '@open-pencil/core/editor'
 
-import { expectDefined, getNodeOrThrow } from '../helpers/assert'
-
 import type { StyleRun } from '@open-pencil/core'
 import type { EditorContext, EditorState } from '@open-pencil/core/editor'
 import type { CanvasKit } from 'canvaskit-wasm'
diff --git a/tests/engine/tools-cli.test.ts b/tests/engine/tools-cli.test.ts
index 8c335d6e9..b1d6fc841 100644
--- a/tests/engine/tools-cli.test.ts
+++ b/tests/engine/tools-cli.test.ts
@@ -1,12 +1,13 @@
 import { describe, expect, test, setDefaultTimeout } from 'bun:test'
 import { join } from 'path'
 
-import { heavy } from '../helpers/test-utils'
+import { cliSourcePath, repoPath } from '#tests/helpers/paths'
+import { heavy } from '#tests/helpers/test-utils'
 
 setDefaultTimeout(30_000)
 
-const CLI = join(import.meta.dir, '../../packages/cli/src/index.ts')
-const FIXTURE = join(import.meta.dir, '../fixtures/gold-preview.fig')
+const CLI = cliSourcePath('index.ts')
+const FIXTURE = repoPath('tests/fixtures/gold-preview.fig')
 
 async function evalCode(
   code: string
diff --git a/tests/engine/tools/create.test.ts b/tests/engine/tools/create.test.ts
index 160b1455d..46fb1e53a 100644
--- a/tests/engine/tools/create.test.ts
+++ b/tests/engine/tools/create.test.ts
@@ -1,6 +1,6 @@
 import { describe, expect, test } from 'bun:test'
 
-import { getTool, setupToolTest, type ToolResult } from '../../helpers/tools'
+import { getTool, setupToolTest, type ToolResult } from '#tests/helpers/tools'
 
 describe('create_shape', () => {
   test('creates a frame', () => {
diff --git a/tests/engine/tools/modify.test.ts b/tests/engine/tools/modify.test.ts
index 45ac7bccd..5fba10650 100644
--- a/tests/engine/tools/modify.test.ts
+++ b/tests/engine/tools/modify.test.ts
@@ -1,8 +1,8 @@
 import { describe, expect, test } from 'bun:test'
 
-import { computeAllLayouts } from '@open-pencil/core'
+import { ALL_TOOLS, getTool, setupToolTest, type ToolResult } from '#tests/helpers/tools'
 
-import { ALL_TOOLS, getTool, setupToolTest, type ToolResult } from '../../helpers/tools'
+import { computeAllLayouts } from '@open-pencil/core'
 
 describe('set_fill', () => {
   test('sets solid fill', () => {
diff --git a/tests/engine/tools/read.test.ts b/tests/engine/tools/read.test.ts
index ceeddb2dc..4dbba4177 100644
--- a/tests/engine/tools/read.test.ts
+++ b/tests/engine/tools/read.test.ts
@@ -1,8 +1,8 @@
 import { describe, expect, test } from 'bun:test'
 
-import { FigmaAPI } from '@open-pencil/core'
+import { ALL_TOOLS, getTool, setupToolTest, type ToolResult } from '#tests/helpers/tools'
 
-import { ALL_TOOLS, getTool, setupToolTest, type ToolResult } from '../../helpers/tools'
+import { FigmaAPI } from '@open-pencil/core'
 
 describe('find_nodes', () => {
   test('finds by name', () => {
diff --git a/tests/engine/tools/registry.test.ts b/tests/engine/tools/registry.test.ts
index adc385391..ba8a9bf61 100644
--- a/tests/engine/tools/registry.test.ts
+++ b/tests/engine/tools/registry.test.ts
@@ -1,6 +1,6 @@
 import { describe, expect, test } from 'bun:test'
 
-import { ALL_TOOLS } from '../../helpers/tools'
+import { ALL_TOOLS } from '#tests/helpers/tools'
 
 describe('tool definitions', () => {
   test('all tools have unique names', () => {
diff --git a/tests/engine/tools/structure.test.ts b/tests/engine/tools/structure.test.ts
index 111f27d2e..3eada397f 100644
--- a/tests/engine/tools/structure.test.ts
+++ b/tests/engine/tools/structure.test.ts
@@ -1,6 +1,6 @@
 import { describe, expect, test } from 'bun:test'
 
-import { getTool, setupToolTest, type ToolResult } from '../../helpers/tools'
+import { getTool, setupToolTest, type ToolResult } from '#tests/helpers/tools'
 
 describe('delete_node', () => {
   test('removes a node', () => {
diff --git a/tests/engine/undo-batch-idle.test.ts b/tests/engine/undo-batch-idle.test.ts
index d10e91702..787f50503 100644
--- a/tests/engine/undo-batch-idle.test.ts
+++ b/tests/engine/undo-batch-idle.test.ts
@@ -1,6 +1,6 @@
 import { describe, test, expect } from 'bun:test'
 
-import { createUndoManager, noop, undoEntry } from '../helpers/undo'
+import { createUndoManager, noop, undoEntry } from '#tests/helpers/undo'
 
 describe('UndoManager idle-timer batching', () => {
   test('rapid pushes inside a batch produce a single undo entry', () => {
diff --git a/tests/engine/undo-redo-sequence.test.ts b/tests/engine/undo-redo-sequence.test.ts
index ec6c211f8..cb4ed3b13 100644
--- a/tests/engine/undo-redo-sequence.test.ts
+++ b/tests/engine/undo-redo-sequence.test.ts
@@ -1,6 +1,6 @@
 import { describe, test, expect } from 'bun:test'
 
-import { createHistoryFrame, setupEditorPage } from '../helpers/editor-history'
+import { createHistoryFrame, setupEditorPage } from '#tests/helpers/editor-history'
 
 describe('undo/redo multi-step sequences', () => {
   test('create → move → duplicate → move copy → undo all → redo all', () => {
diff --git a/tests/engine/undo.test.ts b/tests/engine/undo.test.ts
index 28945bd8a..bc24571a7 100644
--- a/tests/engine/undo.test.ts
+++ b/tests/engine/undo.test.ts
@@ -1,6 +1,6 @@
 import { describe, test, expect } from 'bun:test'
 
-import { createUndoManager, undoEntry } from '../helpers/undo'
+import { createUndoManager, undoEntry } from '#tests/helpers/undo'
 
 describe('UndoManager', () => {
   test('initial state', () => {
diff --git a/tests/engine/variables-editor.test.ts b/tests/engine/variables-editor.test.ts
index c95603323..da72e0845 100644
--- a/tests/engine/variables-editor.test.ts
+++ b/tests/engine/variables-editor.test.ts
@@ -1,7 +1,7 @@
 import { describe, expect, test } from 'bun:test'
-import { ref } from 'vue'
 
 import { createVariableCollectionActions, createVariableValueActions } from '#vue/variables/helpers'
+import { ref } from 'vue'
 
 import type { Editor } from '@open-pencil/core/editor'
 import type { Variable, VariableCollection } from '@open-pencil/core/scene-graph'
diff --git a/tests/engine/vector.test.ts b/tests/engine/vector.test.ts
index 59bd23204..a54a593a4 100644
--- a/tests/engine/vector.test.ts
+++ b/tests/engine/vector.test.ts
@@ -1,5 +1,13 @@
 import { describe, test, expect } from 'bun:test'
 
+import {
+  lineNetwork,
+  triangleNetwork,
+  vectorNetwork,
+  vectorSegment,
+  vectorVertex
+} from '#tests/helpers/vector-network'
+
 import {
   encodeVectorNetworkBlob,
   decodeVectorNetworkBlob,
@@ -9,14 +17,6 @@ import {
   type VectorNetwork
 } from '@open-pencil/core'
 
-import {
-  lineNetwork,
-  triangleNetwork,
-  vectorNetwork,
-  vectorSegment,
-  vectorVertex
-} from '../helpers/vector-network'
-
 describe('vectorNetworkBlob round-trip', () => {
   test('empty network', () => {
     const network: VectorNetwork = { vertices: [], segments: [], regions: [] }
diff --git a/tests/engine/verify-silhouette-autopsy.test.ts b/tests/engine/verify-silhouette-autopsy.test.ts
index c1f15a04d..24b714336 100644
--- a/tests/engine/verify-silhouette-autopsy.test.ts
+++ b/tests/engine/verify-silhouette-autopsy.test.ts
@@ -13,31 +13,28 @@
  */
 import { beforeAll, describe, expect, test } from 'bun:test'
 import { readFileSync } from 'node:fs'
-import { join } from 'node:path'
 
 import { initCanvasKit } from '#cli/headless'
 import { SkiaRenderer } from '#core/canvas'
 import { SceneGraph } from '#core/scene-graph'
 import { fontManager } from '#core/text'
+import { cliSourcePath, coreSourcePath, publicPath, testPath } from '#tests/helpers/paths'
 
 // === CLAIM EXTRACTION ===
 // Each claim is: [doc_section, claim_text, verification_strategy]
 
 // We load the relevant source files to verify the claims by static analysis
 // AND runtime behavior where applicable.
-const shadowsPath = join(import.meta.dir, '../../packages/core/src/canvas/shadows.ts')
-const effectsPath = join(import.meta.dir, '../../packages/core/src/canvas/effects.ts')
-const scenePath = join(import.meta.dir, '../../packages/core/src/canvas/scene.ts')
-const rendererPath = join(import.meta.dir, '../../packages/core/src/canvas/renderer.ts')
-const sgTypesPath = join(import.meta.dir, '../../packages/core/src/scene-graph/types.ts')
-const nodeExportPath = join(
-  import.meta.dir,
-  '../../packages/core/src/kiwi/node-change/export-node.ts'
-)
-const convertPath = join(import.meta.dir, '../../packages/core/src/kiwi/node-change/paint.ts')
-const schemaPath = join(import.meta.dir, '../../packages/core/src/kiwi/binary/schema.ts')
-const codecPath = join(import.meta.dir, '../../packages/core/src/kiwi/binary/codec.ts')
-const lifecyclePath = join(import.meta.dir, '../../packages/core/src/canvas/renderer/lifecycle.ts')
+const shadowsPath = coreSourcePath('canvas/shadows.ts')
+const effectsPath = coreSourcePath('canvas/effects.ts')
+const scenePath = coreSourcePath('canvas/scene.ts')
+const rendererPath = coreSourcePath('canvas/renderer.ts')
+const sgTypesPath = coreSourcePath('scene-graph/types.ts')
+const nodeExportPath = coreSourcePath('kiwi/node-change/export-node.ts')
+const convertPath = coreSourcePath('kiwi/node-change/paint.ts')
+const schemaPath = coreSourcePath('kiwi/binary/schema.ts')
+const codecPath = coreSourcePath('kiwi/binary/codec.ts')
+const lifecyclePath = coreSourcePath('canvas/renderer/lifecycle.ts')
 
 function readSource(path: string): string {
   return readFileSync(path, 'utf-8')
@@ -293,7 +290,7 @@ describe('Doc 02 — Formula Deconstruction: Static Code Claims', () => {
 
 describe('Doc 03 — Artifact Analysis: Static + Runtime Verification', () => {
   test('C03-01: visual-inner-shadow-counter.ts exists and checks for right-edge shadow', () => {
-    const testPath = join(import.meta.dir, '../../tests/engine/visual-inner-shadow-counter.ts')
+    const testPath = testPath('engine/visual-inner-shadow-counter.ts')
     const src = readFileSync(testPath, 'utf-8')
     expect(src).toContain('hasShadowOnRightInnerEdge')
     expect(src).toContain("t.color === 'black'")
@@ -344,7 +341,7 @@ describe('Doc 01/03 — Runtime Behavior Verification', () => {
     fontManager.attachProvider(ck, fontProvider)
 
     // Load Inter font for text tests
-    const fontPath = join(import.meta.dir, '../../public/Inter-SemiBold.ttf')
+    const fontPath = publicPath('Inter-SemiBold.ttf')
     try {
       const fontData = readFileSync(fontPath)
       fontManager.markLoaded(
diff --git a/tests/figma/create-shapes.spec.ts b/tests/figma/create-shapes.spec.ts
index ab03e22c1..f0a5e4980 100644
--- a/tests/figma/create-shapes.spec.ts
+++ b/tests/figma/create-shapes.spec.ts
@@ -1,7 +1,6 @@
+import { FigmaHelper } from '#tests/helpers/figma'
 import { test, expect } from '@playwright/test'
 
-import { FigmaHelper } from '../helpers/figma'
-
 test.describe('figma reference: create shapes', () => {
   let figma: FigmaHelper
 
diff --git a/tests/helpers/paths.ts b/tests/helpers/paths.ts
new file mode 100644
index 000000000..cd33e27af
--- /dev/null
+++ b/tests/helpers/paths.ts
@@ -0,0 +1,23 @@
+import { join } from 'node:path'
+
+const repoRoot = join(import.meta.dir, '..', '..')
+
+export function repoPath(...segments: string[]): string {
+  return join(repoRoot, ...segments)
+}
+
+export function coreSourcePath(...segments: string[]): string {
+  return repoPath('packages/core/src', ...segments)
+}
+
+export function cliSourcePath(...segments: string[]): string {
+  return repoPath('packages/cli/src', ...segments)
+}
+
+export function testPath(...segments: string[]): string {
+  return repoPath('tests', ...segments)
+}
+
+export function publicPath(...segments: string[]): string {
+  return repoPath('public', ...segments)
+}
diff --git a/tests/helpers/tauri-mocks.ts b/tests/helpers/tauri-mocks.ts
index cf233ff2d..1d0001e62 100644
--- a/tests/helpers/tauri-mocks.ts
+++ b/tests/helpers/tauri-mocks.ts
@@ -13,7 +13,9 @@ export async function mockTauriIPC(
   const { mockIPC } = await import('@tauri-apps/api/mocks')
   mockIPC(handler)
   const windowLike = window as typeof window & {
-    __TAURI_INTERNALS__: { invoke: (cmd: string, args: unknown, options?: unknown) => Promise<unknown> }
+    __TAURI_INTERNALS__: {
+      invoke: (cmd: string, args: unknown, options?: unknown) => Promise<unknown>
+    }
   }
   windowLike.__TAURI_INTERNALS__.invoke = async (cmd, args, options) => handler(cmd, args, options)
 }
diff --git a/tsconfig.json b/tsconfig.json
index 126f7f58a..e58c215bc 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -21,6 +21,7 @@
       "#core/*": ["./packages/core/src/*"],
       "#cli/*": ["./packages/cli/src/*"],
       "#mcp/*": ["./packages/mcp/src/*"],
+      "#tests/*": ["./tests/*"],
       "tinykeys": ["./node_modules/tinykeys/dist/tinykeys.d.ts"],
       "@open-pencil/vue": ["./packages/vue/src/index.ts"],
       "@open-pencil/core": ["./packages/core/src/index.ts"],
diff --git a/vite/canvaskit-assets.ts b/vite/canvaskit-assets.ts
index dfaffc578..c53137d13 100644
--- a/vite/canvaskit-assets.ts
+++ b/vite/canvaskit-assets.ts
@@ -1,8 +1,7 @@
 import { copyFileSync, createReadStream, existsSync, mkdirSync } from 'fs'
 import { dirname, resolve } from 'node:path'
 
-import type { Connect, ResolvedConfig } from 'vite'
-import type { Plugin } from 'vite'
+import type { Connect, Plugin, ResolvedConfig } from 'vite'
 
 function syncWasmFromNodeModules(root: string, source: string, destination: string) {
   const sourcePath = resolve(root, source)
@@ -51,7 +50,11 @@ export function copyCanvasKitAssetsPlugin(): Plugin {
       root = config.root
     },
     buildStart() {
-      syncWasmFromNodeModules(root, 'node_modules/canvaskit-wasm/bin/canvaskit.wasm', 'public/canvaskit.wasm')
+      syncWasmFromNodeModules(
+        root,
+        'node_modules/canvaskit-wasm/bin/canvaskit.wasm',
+        'public/canvaskit.wasm'
+      )
       syncWasmFromNodeModules(
         root,
         'packages/core/vendor/canvaskit-webgpu/canvaskit.wasm',