diff --git a/scripts/ci-changed-scope.d.mts b/scripts/ci-changed-scope.d.mts
index 3a8ab4b30bc..62ff09bda35 100644
--- a/scripts/ci-changed-scope.d.mts
+++ b/scripts/ci-changed-scope.d.mts
@@ -14,8 +14,21 @@ export type InstallSmokeScope = {
   runFullInstallSmoke: boolean;
 };
 
+export type NodeFastScope = {
+  runFastOnly: boolean;
+  runPluginContracts: boolean;
+  runCiRouting: boolean;
+};
+
+export type ChangedScopeArgs = {
+  base: string;
+  head: string;
+  mergeHeadFirstParent: boolean;
+};
+
 export function detectChangedScope(changedPaths: string[]): ChangedScope;
 export function shouldRunNativeI18n(changedPaths: string[]): boolean;
+export function detectNodeFastScope(changedPaths: string[]): NodeFastScope;
 export function detectInstallSmokeScope(changedPaths: string[]): InstallSmokeScope;
 export function listChangedPaths(
   base: string,
@@ -27,10 +40,8 @@ export function writeGitHubOutput(
   scope: ChangedScope,
   outputPath?: string,
   installSmokeScope?: InstallSmokeScope,
-  nodeFastScope?: {
-    runFastOnly: boolean;
-    runPluginContracts: boolean;
-    runCiRouting: boolean;
-  },
+  nodeFastScope?: NodeFastScope,
   runNativeI18n?: boolean,
 ): void;
+
+export function parseArgs(argv: string[]): ChangedScopeArgs;
diff --git a/scripts/docs-link-audit.d.mts b/scripts/docs-link-audit.d.mts
index 7cc2d22f53a..63f55aabd29 100644
--- a/scripts/docs-link-audit.d.mts
+++ b/scripts/docs-link-audit.d.mts
@@ -11,12 +11,92 @@ export type ResolveRouteResult = {
   loop?: boolean;
 };
 
+export type MirroredDocsDir = {
+  cleanup: () => void;
+  dir: string;
+  mirroredClawHub: boolean;
+};
+
+export type ScriptSpawnOptions = {
+  cwd: string;
+  env?: NodeJS.ProcessEnv;
+  shell?: boolean;
+  stdio: string;
+};
+
+export type ScriptSpawnResult = {
+  status: number | null;
+  error?: { code?: string };
+};
+
+export type ScriptSpawn = (
+  command: string,
+  args: string[],
+  options: ScriptSpawnOptions,
+) => ScriptSpawnResult;
+
+export type ScriptInvocation = {
+  command: string;
+  args: string[];
+  options?: Partial<ScriptSpawnOptions> & {
+    detached?: boolean;
+    windowsVerbatimArguments?: boolean;
+  };
+};
+
 export function normalizeRoute(route: string): string;
 export function resolveRoute(
   route: string,
   options?: { redirects?: Map<string, string>; routes?: Set<string> },
 ): ResolveRouteResult;
-export function auditDocsLinks(): {
+
+export function sanitizeDocsConfigForEnglishOnly(value: unknown): unknown;
+
+export function prepareMirroredDocsDir(
+  sourceDir?: string,
+  options?: {
+    resolveClawHubRepoPathImpl?: (
+      value?: string,
+      options?: { required?: boolean },
+    ) => string | undefined;
+    syncClawHubDocsTreeImpl?: (
+      targetDocsDir: string,
+      options?: { repoPath?: string; required?: boolean },
+    ) => unknown;
+  },
+): MirroredDocsDir;
+
+export function prepareAnchorAuditDocsDir(sourceDir?: string): string;
+
+export function resolveMintlifyAnchorAuditInvocation(params: {
+  cwd: string;
+  nodeVersion?: string;
+  spawnSyncImpl: ScriptSpawn;
+  env?: NodeJS.ProcessEnv;
+  nodeExecPath?: string;
+  npmExecPath?: string;
+  platform?: NodeJS.Platform;
+  comSpec?: string;
+}): ScriptInvocation;
+
+export function auditDocsLinks(options?: {
+  docsDir?: string;
+  allowExternalClawHubRoutes?: boolean;
+}): {
   checked: number;
   broken: BrokenDocLink[];
 };
+
+export function runDocsLinkAuditCli(options?: {
+  args?: string[];
+  comSpec?: string;
+  env?: NodeJS.ProcessEnv;
+  nodeExecPath?: string;
+  nodeVersion?: string;
+  npmExecPath?: string;
+  platform?: NodeJS.Platform;
+  spawnSyncImpl?: ScriptSpawn;
+  prepareAnchorAuditDocsDirImpl?: (sourceDir?: string) => string;
+  prepareMirroredDocsDirImpl?: (sourceDir?: string) => MirroredDocsDir;
+  cleanupAnchorAuditDocsDirImpl?: (dir: string) => void;
+}): number;
diff --git a/scripts/test-projects.test-support.d.mts b/scripts/test-projects.test-support.d.mts
index 49a9427f5ee..1f1d0a138b9 100644
--- a/scripts/test-projects.test-support.d.mts
+++ b/scripts/test-projects.test-support.d.mts
@@ -1,3 +1,5 @@
+import type { VitestHostInfo } from "./lib/vitest-local-scheduling.mjs";
+
 export type VitestRunPlan = {
   config: string;
   forwardedArgs: string[];
@@ -11,9 +13,19 @@ export type VitestRunSpec = {
   includeFilePath: string | null;
   includePatterns: string[] | null;
   pnpmArgs: string[];
+  preflightPnpmArgs: string[] | null;
   watchMode: boolean;
 };
 
+export type FailedVitestShard = {
+  code?: number | null;
+  config: string;
+  includePatterns?: string[] | null;
+  noOutputTimedOut?: boolean;
+  order?: number;
+  signal?: string | null;
+};
+
 export type ChangedTestTargetOptions = {
   cwd?: string;
   env?: Record<string, string | undefined>;
@@ -29,6 +41,13 @@ export type ChangedTestTargetPlan = {
 export const DEFAULT_TEST_PROJECTS_VITEST_NO_OUTPUT_TIMEOUT_MS: string;
 export const DEFAULT_TEST_PROJECTS_VITEST_NO_OUTPUT_HEARTBEAT_MS: string;
 
+export function orderFullSuiteSpecsForParallelRun<T extends { config: string }>(
+  specs: T[],
+  shardTimings?: ReadonlyMap<string, number>,
+): T[];
+
+export function formatNoChangedTestTargetLines(skippedBroadFallbackPaths: string[]): string[];
+
 export function parseTestProjectsArgs(
   args: string[],
   cwd?: string,
@@ -45,6 +64,22 @@ export function buildVitestRunPlans(
   options?: ChangedTestTargetOptions,
 ): VitestRunPlan[];
 
+export function buildFullSuiteVitestRunPlans(args: string[], cwd?: string): VitestRunPlan[];
+
+export function shouldUseLocalFullSuiteParallelByDefault(
+  env?: Record<string, string | undefined>,
+): boolean;
+
+export function shouldExpandLocalFullSuiteShardsByDefault(
+  env?: Record<string, string | undefined>,
+): boolean;
+
+export function resolveParallelFullSuiteConcurrency(
+  specCount: number,
+  env?: Record<string, string | undefined>,
+  hostInfo?: VitestHostInfo,
+): number;
+
 export function resolveChangedTargetArgs(
   args: string[],
   cwd?: string,
@@ -75,6 +110,8 @@ export function createVitestRunSpecs(
   },
 ): VitestRunSpec[];
 
+export function createVitestPreflightPnpmArgs(config: string): string[] | null;
+
 export function findUnmatchedExplicitTestTargets(
   args: string[],
   cwd?: string,
@@ -84,21 +121,45 @@ export function findUnmatchedExplicitTestTargets(
   includePattern?: string;
 }>;
 
-export function applyDefaultVitestNoOutputTimeout(
-  specs: VitestRunSpec[],
+export function applyDefaultVitestNoOutputTimeout<
+  T extends { config: string; env: NodeJS.ProcessEnv; watchMode: boolean },
+>(
+  specs: T[],
   params?: {
     env?: Record<string, string | undefined>;
   },
-): VitestRunSpec[];
+): Array<Omit<T, "env"> & { env: NodeJS.ProcessEnv }>;
 
-export function applyDefaultMultiSpecVitestCachePaths(
-  specs: VitestRunSpec[],
+export function applyDefaultMultiSpecVitestCachePaths<
+  T extends { config: string; env: NodeJS.ProcessEnv; watchMode: boolean },
+>(
+  specs: T[],
   params?: {
     cwd?: string;
     env?: Record<string, string | undefined>;
   },
-): VitestRunSpec[];
+): Array<Omit<T, "env"> & { env: NodeJS.ProcessEnv }>;
+
+export function applyParallelVitestCachePaths<T extends { config: string; env: NodeJS.ProcessEnv }>(
+  specs: T[],
+  params?: {
+    cwd?: string;
+    env?: NodeJS.ProcessEnv;
+  },
+): Array<Omit<T, "env"> & { env: NodeJS.ProcessEnv }>;
+
+export function shouldRetryVitestNoOutputTimeout(env?: Record<string, string | undefined>): boolean;
+
+export function shouldAcquireLocalHeavyCheckLock(
+  runSpecs: Array<Pick<VitestRunSpec, "config" | "includePatterns" | "watchMode">>,
+  env?: Record<string, string | undefined>,
+): boolean;
 
 export function writeVitestIncludeFile(filePath: string, includePatterns: string[]): void;
 
+export function formatFailedShardDigest(
+  failures: FailedVitestShard[],
+  options?: { limit?: number },
+): string[];
+
 export function buildVitestArgs(args: string[], cwd?: string): string[];
diff --git a/src/infra/scripts-modules.d.ts b/src/infra/scripts-modules.d.ts
index 6a370db57b4..956422444c3 100644
--- a/src/infra/scripts-modules.d.ts
+++ b/src/infra/scripts-modules.d.ts
@@ -18,19 +18,3 @@ declare module "../../scripts/watch-node.mjs" {
     lockDisabled?: boolean;
   }): Promise<number>;
 }
-
-declare module "../../scripts/ci-changed-scope.mjs" {
-  export function detectChangedScope(paths: string[]): {
-    runNode: boolean;
-    runMacos: boolean;
-    runAndroid: boolean;
-    runWindows: boolean;
-    runSkillsPython: boolean;
-    runChangedSmoke: boolean;
-    runControlUiI18n: boolean;
-  };
-  export function detectInstallSmokeScope(paths: string[]): {
-    runFastInstallSmoke: boolean;
-    runFullInstallSmoke: boolean;
-  };
-}
diff --git a/src/scripts/ci-changed-scope.test.ts b/src/scripts/ci-changed-scope.test.ts
index 630248a64a3..f7d36554867 100644
--- a/src/scripts/ci-changed-scope.test.ts
+++ b/src/scripts/ci-changed-scope.test.ts
@@ -13,39 +13,7 @@ const {
   listChangedPaths,
   parseArgs,
   shouldRunNativeI18n,
-} = (await import("../../scripts/ci-changed-scope.mjs")) as unknown as {
-  detectChangedScope: (paths: string[]) => {
-    runNode: boolean;
-    runMacos: boolean;
-    runIosBuild: boolean;
-    runAndroid: boolean;
-    runWindows: boolean;
-    runSkillsPython: boolean;
-    runChangedSmoke: boolean;
-    runControlUiI18n: boolean;
-  };
-  detectInstallSmokeScope: (paths: string[]) => {
-    runFastInstallSmoke: boolean;
-    runFullInstallSmoke: boolean;
-  };
-  detectNodeFastScope: (paths: string[]) => {
-    runFastOnly: boolean;
-    runPluginContracts: boolean;
-    runCiRouting: boolean;
-  };
-  shouldRunNativeI18n: (paths: string[]) => boolean;
-  listChangedPaths: (
-    base: string,
-    head?: string,
-    cwd?: string,
-    preferMergeHeadFirstParent?: boolean,
-  ) => string[];
-  parseArgs: (argv: string[]) => {
-    base: string;
-    head: string;
-    mergeHeadFirstParent: boolean;
-  };
-};
+} = await import("../../scripts/ci-changed-scope.mjs");
 
 const markerPaths: string[] = [];
 const tempDirs: string[] = [];
diff --git a/src/scripts/docs-link-audit.test.ts b/src/scripts/docs-link-audit.test.ts
index 7707d079a23..d1c502dc30b 100644
--- a/src/scripts/docs-link-audit.test.ts
+++ b/src/scripts/docs-link-audit.test.ts
@@ -12,48 +12,7 @@ const {
   resolveRoute,
   runDocsLinkAuditCli,
   sanitizeDocsConfigForEnglishOnly,
-} = (await import("../../scripts/docs-link-audit.mjs")) as unknown as {
-  normalizeRoute: (route: string) => string;
-  prepareAnchorAuditDocsDir: (sourceDir?: string) => string;
-  prepareMirroredDocsDir: (
-    sourceDir?: string,
-    options?: {
-      resolveClawHubRepoPathImpl?: (value?: string, options?: { required?: boolean }) => string;
-      syncClawHubDocsTreeImpl?: (
-        targetDocsDir: string,
-        options?: { repoPath?: string; required?: boolean },
-      ) => unknown;
-    },
-  ) => {
-    cleanup: () => void;
-    dir: string;
-    mirroredClawHub: boolean;
-  };
-  resolveRoute: (
-    route: string,
-    options?: { redirects?: Map<string, string>; routes?: Set<string> },
-  ) => { ok: boolean; terminal: string; loop?: boolean };
-  runDocsLinkAuditCli: (options?: {
-    args?: string[];
-    nodeVersion?: string;
-    spawnSyncImpl?: (
-      command: string,
-      args: string[],
-      options: { cwd: string; env?: NodeJS.ProcessEnv; shell?: boolean; stdio: string },
-    ) => { status: number | null; error?: { code?: string } };
-    env?: NodeJS.ProcessEnv;
-    nodeExecPath?: string;
-    npmExecPath?: string;
-    prepareAnchorAuditDocsDirImpl?: (sourceDir?: string) => string;
-    cleanupAnchorAuditDocsDirImpl?: (dir: string) => void;
-    prepareMirroredDocsDirImpl?: (sourceDir?: string) => {
-      cleanup: () => void;
-      dir: string;
-      mirroredClawHub: boolean;
-    };
-  }) => number;
-  sanitizeDocsConfigForEnglishOnly: (value: unknown) => unknown;
-};
+} = await import("../../scripts/docs-link-audit.mjs");
 
 describe("docs-link-audit", () => {
   function tempEntries(prefix: string): Set<string> {
diff --git a/src/scripts/test-projects.test.ts b/src/scripts/test-projects.test.ts
index 12c6251c8e3..6ca40f012dd 100644
--- a/src/scripts/test-projects.test.ts
+++ b/src/scripts/test-projects.test.ts
@@ -16,98 +16,7 @@ const {
   resolveChangedTargetArgs,
   resolveChangedTestTargetPlan,
   resolveParallelFullSuiteConcurrency,
-} = (await import("../../scripts/test-projects.test-support.mjs")) as unknown as {
-  applyParallelVitestCachePaths: (
-    specs: Array<{
-      config: string;
-      env: NodeJS.ProcessEnv;
-    }>,
-    params?: {
-      cwd?: string;
-      env?: NodeJS.ProcessEnv;
-    },
-  ) => Array<{
-    config: string;
-    env: NodeJS.ProcessEnv;
-  }>;
-  buildFullSuiteVitestRunPlans: (
-    args: string[],
-    cwd?: string,
-  ) => Array<{
-    config: string;
-    forwardedArgs: string[];
-    includePatterns: string[] | null;
-    watchMode: boolean;
-  }>;
-  buildVitestArgs: (args: string[], cwd?: string) => string[];
-  buildVitestRunPlans: (
-    args: string[],
-    cwd?: string,
-    listChangedPaths?: (baseRef: string, cwd: string) => string[],
-  ) => Array<{
-    config: string;
-    forwardedArgs: string[];
-    includePatterns: string[] | null;
-    watchMode: boolean;
-  }>;
-  createVitestRunSpecs: (
-    args: string[],
-    params?: {
-      baseEnv?: NodeJS.ProcessEnv;
-      cwd?: string;
-      tempDir?: string;
-    },
-  ) => Array<{
-    config: string;
-    env: NodeJS.ProcessEnv;
-    includeFilePath: string | null;
-    includePatterns: string[] | null;
-    pnpmArgs: string[];
-    watchMode: boolean;
-  }>;
-  findUnmatchedExplicitTestTargets: (
-    args: string[],
-    cwd?: string,
-  ) => Array<{
-    target: string;
-    reason: "glob-matched-no-files" | "path-does-not-exist" | "target-matched-no-test-files";
-    includePattern?: string;
-  }>;
-  parseTestProjectsArgs: (
-    args: string[],
-    cwd?: string,
-  ) => {
-    forwardedArgs: string[];
-    targetArgs: string[];
-    watchMode: boolean;
-  };
-  resolveChangedTargetArgs: (
-    args: string[],
-    cwd?: string,
-    listChangedPaths?: (baseRef: string, cwd: string) => string[],
-    options?: {
-      cwd?: string;
-      env?: NodeJS.ProcessEnv;
-      broad?: boolean;
-    },
-  ) => string[] | null;
-  resolveChangedTestTargetPlan: (
-    changedPaths: string[],
-  ) =>
-    | { mode: "none"; targets: string[] }
-    | { mode: "targets"; targets: string[] }
-    | { mode: "broad"; targets: string[] };
-  resolveParallelFullSuiteConcurrency: (
-    specCount: number,
-    env?: NodeJS.ProcessEnv,
-    hostInfo?: {
-      cpuCount?: number;
-      loadAverage1m?: number;
-      totalMemoryBytes?: number;
-      freeMemoryBytes?: number;
-    },
-  ) => number;
-};
+} = await import("../../scripts/test-projects.test-support.mjs");
 
 const runVitestModulePath = "../../scripts/run-vitest.mjs";
 const { resolveVitestCliEntry, resolveVitestNodeArgs } = (await import(
diff --git a/test/vitest/vitest.shared.config.ts b/test/vitest/vitest.shared.config.ts
index 160280ec5ad..4644ee364f0 100644
--- a/test/vitest/vitest.shared.config.ts
+++ b/test/vitest/vitest.shared.config.ts
@@ -10,6 +10,10 @@ import {
   resolveLocalVitestMaxWorkers as resolveLocalVitestMaxWorkersImpl,
   resolveLocalVitestScheduling as resolveLocalVitestSchedulingImpl,
 } from "../../scripts/lib/vitest-local-scheduling.mjs";
+import type {
+  LocalVitestScheduling,
+  VitestHostInfo,
+} from "../../scripts/lib/vitest-local-scheduling.mjs";
 import {
   BUNDLED_PLUGIN_ROOT_DIR,
   BUNDLED_PLUGIN_TEST_GLOB,
@@ -17,19 +21,9 @@ import {
 import { loadVitestExperimentalConfig } from "./vitest.performance-config.ts";
 import { shouldPrintVitestThrottle } from "./vitest.system-load.ts";
 
-type VitestHostInfo = {
-  cpuCount?: number;
-  loadAverage1m?: number;
-  totalMemoryBytes?: number;
-};
-
 export type OpenClawVitestPool = "forks" | "threads";
 
-export type LocalVitestScheduling = {
-  maxWorkers: number;
-  fileParallelism: boolean;
-  throttledBySystem: boolean;
-};
+export type { LocalVitestScheduling };
 
 export const jsdomOptimizedDeps = {
   optimizer: {
@@ -41,7 +35,7 @@ export const jsdomOptimizedDeps = {
 };
 
 function detectVitestHostInfo(): Required<VitestHostInfo> {
-  return detectVitestHostInfoImpl() as Required<VitestHostInfo>;
+  return detectVitestHostInfoImpl();
 }
 
 export function resolveLocalVitestMaxWorkers(
@@ -57,7 +51,7 @@ export function resolveLocalVitestScheduling(
   system: VitestHostInfo = detectVitestHostInfo(),
   pool: OpenClawVitestPool = resolveDefaultVitestPool(env),
 ): LocalVitestScheduling {
-  return resolveLocalVitestSchedulingImpl(env, system, pool) as LocalVitestScheduling;
+  return resolveLocalVitestSchedulingImpl(env, system, pool);
 }
 
 export function resolveDefaultVitestPool(