fix: convert node:test API calls to vitest equivalents

- t.after() → afterEach() with import injection
- t.before() → beforeEach() with import injection
- t.test() → test() (flatten subtests)
- t.skip() → return with skip comment
- Fix vitest.config.ts poolOptions deprecation for Vitest 4
- Run fix-vitest-api.mjs across 108 affected test files

💘 Generated with Crush

Assisted-by: GLM-5.1 via Crush <crush@charm.land>

packages/mcp-server/src/coerce-string-arrays.test.ts

@@ -1,4 +1,4 @@
-import { describe, it } from "node:test";
+import { describe, it } from 'vitest';
 import assert from "node:assert/strict";
 import { z } from "zod";
 

packages/mcp-server/src/import-candidates.test.ts

@@ -1,5 +1,5 @@
 // SF — Regression tests for importLocalModule candidate resolution (#3954)
-import { describe, it } from "node:test";
+import { describe, it } from 'vitest';
 import assert from "node:assert/strict";
 
 import { _buildImportCandidates } from "./workflow-tools.js";

packages/mcp-server/src/tool-credentials.test.ts

@@ -1,4 +1,4 @@
-import { describe, it } from "node:test";
+import { describe, it } from 'vitest';
 import assert from "node:assert/strict";
 import { mkdtempSync, mkdirSync, rmSync, writeFileSync } from "node:fs";
 import { tmpdir } from "node:os";

packages/mcp-server/src/workflow-tools.test.ts

@@ -1,4 +1,4 @@
-import { describe, it } from "node:test";
+import { describe, it } from 'vitest';
 import assert from "node:assert/strict";
 import { mkdirSync, rmSync, writeFileSync, existsSync } from "node:fs";
 import { join } from "node:path";

packages/native/src/__tests__/clipboard.test.mjs

@@ -1,4 +1,4 @@
-import { test, describe } from "node:test";
+import { describe } from 'vitest';
 import assert from "node:assert/strict";
 import { createRequire } from "node:module";
 import * as path from "node:path";

packages/native/src/__tests__/diff.test.mjs

@@ -1,4 +1,4 @@
-import { test, describe } from "node:test";
+import { describe } from 'vitest';
 import assert from "node:assert/strict";
 import { createRequire } from "node:module";
 import * as path from "node:path";

packages/native/src/__tests__/fd.test.mjs

@@ -1,4 +1,4 @@
-import { test, describe } from "node:test";
+import { describe } from 'vitest';
 import assert from "node:assert/strict";
 import { createRequire } from "node:module";
 import * as path from "node:path";

packages/native/src/__tests__/glob.test.mjs

@@ -1,4 +1,4 @@
-import { test, describe } from "node:test";
+import { describe } from 'vitest';
 import assert from "node:assert/strict";
 import { createRequire } from "node:module";
 import * as path from "node:path";

packages/native/src/__tests__/grep.test.mjs

@@ -1,4 +1,4 @@
-import { test, describe } from "node:test";
+import { describe } from 'vitest';
 import assert from "node:assert/strict";
 import { createRequire } from "node:module";
 import * as path from "node:path";

packages/native/src/__tests__/highlight.test.mjs

@@ -1,4 +1,4 @@
-import { test, describe } from "node:test";
+import { describe } from 'vitest';
 import assert from "node:assert/strict";
 import { createRequire } from "node:module";
 import * as path from "node:path";

packages/native/src/__tests__/html.test.mjs

@@ -1,4 +1,4 @@
-import { test, describe } from "node:test";
+import { describe } from 'vitest';
 import assert from "node:assert/strict";
 import { createRequire } from "node:module";
 import * as path from "node:path";

packages/native/src/__tests__/image.test.mjs

@@ -1,4 +1,4 @@
-import { test, describe } from "node:test";
+import { describe } from 'vitest';
 import assert from "node:assert/strict";
 import { createRequire } from "node:module";
 import * as path from "node:path";

packages/native/src/__tests__/json-parse.test.mjs

@@ -1,4 +1,4 @@
-import { test, describe } from "node:test";
+import { describe } from 'vitest';
 import assert from "node:assert/strict";
 import { createRequire } from "node:module";
 import * as path from "node:path";

packages/native/src/__tests__/module-compat.test.mjs

@@ -7,7 +7,7 @@
  * declared "type": "module" and strict ESM resolution was enforced.
  */
 
-import { test, describe } from "node:test";
+import { describe } from 'vitest';
 import assert from "node:assert/strict";
 import { readFileSync } from "node:fs";
 import * as path from "node:path";

packages/native/src/__tests__/ps.test.mjs

@@ -1,4 +1,4 @@
-import { test, describe } from "node:test";
+import { describe } from 'vitest';
 import assert from "node:assert/strict";
 import { createRequire } from "node:module";
 import * as path from "node:path";

packages/native/src/__tests__/stream-process.test.mjs

@@ -1,4 +1,4 @@
-import { test, describe } from "node:test";
+import { describe } from 'vitest';
 import assert from "node:assert/strict";
 import { processStreamChunk } from "../stream-process/index.ts";
 

packages/native/src/__tests__/text.test.mjs

@@ -1,4 +1,4 @@
-import { test, describe } from "node:test";
+import { describe } from 'vitest';
 import assert from "node:assert/strict";
 import { createRequire } from "node:module";
 import * as path from "node:path";

packages/native/src/__tests__/truncate.test.mjs

@@ -1,4 +1,4 @@
-import { test, describe } from "node:test";
+import { describe } from 'vitest';
 import assert from "node:assert/strict";
 import { createRequire } from "node:module";
 import * as path from "node:path";

packages/native/src/__tests__/ttsr.test.mjs

@@ -1,4 +1,4 @@
-import { test, describe } from "node:test";
+import { describe } from 'vitest';
 import assert from "node:assert/strict";
 import { createRequire } from "node:module";
 import * as path from "node:path";

packages/native/src/__tests__/xxhash.test.mjs

@@ -1,4 +1,4 @@
-import { describe, it } from "node:test";
+import { describe, it } from 'vitest';
 import assert from "node:assert/strict";
 import { xxHash32, xxHash32Fallback } from "@singularity-forge/native/xxhash";
 

packages/pi-agent-core/src/agent-loop.test.ts

@@ -1,7 +1,7 @@
 // agent-loop tests
 // Covers: pauseTurn handling (#2869), schema overload retry cap (#2783)
 
-import { describe, it, mock } from "node:test";
+import { describe, it } from 'vitest';
 import assert from "node:assert/strict";
 import { readFileSync } from "node:fs";
 import { join, dirname } from "node:path";

packages/pi-agent-core/src/agent.test.ts

@@ -3,7 +3,7 @@
 // and that the footer reads activeInferenceModel instead of state.model.
 // Regression test for https://github.com/singularity-forge/sf-run/issues/1844 Bug 2
 
-import { describe, it } from "node:test";
+import { describe, it } from 'vitest';
 import assert from "node:assert/strict";
 import { readFileSync } from "node:fs";
 import { join, dirname } from "node:path";

packages/pi-ai/src/env-api-keys.test.ts

@@ -1,5 +1,5 @@
 import assert from "node:assert/strict";
-import { describe, it } from "node:test";
+import { describe, it } from 'vitest';
 import { getEnvApiKey } from "./env-api-keys.js";
 
 describe("getEnvApiKey", () => {

packages/pi-ai/src/models.generated.test.ts

@@ -1,4 +1,4 @@
-import { describe, it } from "node:test";
+import { describe, it } from 'vitest';
 import assert from "node:assert/strict";
 import { MODELS } from "./models.generated.js";
 import { getModel, getModels, getProviders } from "./models.js";

packages/pi-ai/src/models.test.ts

@@ -1,4 +1,4 @@
-import { describe, it } from "node:test";
+import { describe, it } from 'vitest';
 import assert from "node:assert/strict";
 import { getProviders, getModels, getModel, supportsXhigh, applyCapabilityPatches } from "./models.js";
 import type { Api, Model } from "./types.js";

packages/pi-ai/src/providers/amazon-bedrock.test.ts

@@ -7,7 +7,7 @@
  * Related: #4392 (opus-4-7 adaptive thinking not recognised on Bedrock)
  *          #4352 (pre-existing: only opus-4-6 / sonnet-4-6 whitelisted)
  */
-import { describe, it } from "node:test";
+import { describe, it } from 'vitest';
 import assert from "node:assert/strict";
 
 import {

packages/pi-ai/src/providers/anthropic-auth.test.ts

@@ -1,4 +1,4 @@
-import test from "node:test";
+import { test } from 'vitest';
 import assert from "node:assert/strict";
 import { readFileSync } from "node:fs";
 import { dirname, join } from "node:path";

packages/pi-ai/src/providers/anthropic-shared.test.ts

@@ -1,4 +1,4 @@
-import { describe, it } from "node:test";
+import { describe, it } from 'vitest';
 import assert from "node:assert/strict";
 import { convertTools, mapStopReason } from "./anthropic-shared.js";
 

packages/pi-ai/src/providers/google-shared.test.ts

@@ -1,4 +1,4 @@
-import { describe, it } from "node:test";
+import { describe, it } from 'vitest';
 import assert from "node:assert/strict";
 import { sanitizeSchemaForGoogle } from "./google-shared.js";
 

packages/pi-ai/src/providers/provider-capabilities.test.ts

@@ -1,5 +1,5 @@
 // SF — Provider Capabilities Registry Tests (ADR-005 Phase 1)
-import { describe, test } from "node:test";
+import { describe } from 'vitest';
 import assert from "node:assert/strict";
 
 import {

packages/pi-ai/src/providers/simple-options.test.ts

@@ -1,5 +1,5 @@
 import assert from "node:assert/strict";
-import { describe, it } from "node:test";
+import { describe, it } from 'vitest';
 import type { Model } from "../types.js";
 import { isAutoReasoning, resolveReasoningLevel } from "./simple-options.js";
 

packages/pi-ai/src/providers/transform-messages-report.test.ts

@@ -1,5 +1,5 @@
 // SF — ProviderSwitchReport Tests (ADR-005 Phase 3)
-import { describe, test } from "node:test";
+import { describe } from 'vitest';
 import assert from "node:assert/strict";
 
 import { transformMessages, createEmptyReport, hasTransformations } from "./transform-messages.js";

packages/pi-ai/src/utils/event-stream.test.ts

@@ -1,5 +1,5 @@
 import assert from "node:assert/strict";
-import { describe, it } from "node:test";
+import { describe, it } from 'vitest';
 import { parseAnthropicSSE } from "./event-stream.js";
 
 function createMockResponse(chunks: string[]): Response {

packages/pi-ai/src/utils/oauth/github-copilot.test.ts

@@ -1,5 +1,5 @@
 import assert from "node:assert/strict";
-import test from "node:test";
+import { test } from 'vitest';
 
 import type { Api, Model } from "../../types.js";
 import type { OAuthCredentials } from "./index.js";

packages/pi-ai/src/utils/tests/json-parse.test.ts

@@ -1,4 +1,4 @@
-import { describe, test } from "node:test";
+import { describe } from 'vitest';
 import assert from "node:assert/strict";
 import { parseStreamingJson } from "../json-parse.js";
 

packages/pi-ai/src/utils/tests/overflow.test.ts

@@ -1,4 +1,4 @@
-import { describe, test } from "node:test";
+import { describe } from 'vitest';
 import assert from "node:assert/strict";
 
 import { isContextOverflow } from "../overflow.js";

packages/pi-ai/src/utils/tests/repair-tool-json.test.ts

@@ -1,4 +1,4 @@
-import { describe, test } from "node:test";
+import { describe } from 'vitest';
 import assert from "node:assert/strict";
 import {
 	repairToolJson,

packages/pi-coding-agent/src/cli/args.test.ts

@@ -1,5 +1,5 @@
 import assert from "node:assert/strict";
-import { describe, it } from "node:test";
+import { describe, it } from 'vitest';
 import { parseArgs } from "./args.js";
 
 describe("parseArgs", () => {

packages/pi-coding-agent/src/cli/list-models.test.ts

@@ -1,5 +1,5 @@
 import assert from "node:assert/strict";
-import { afterEach, beforeEach, describe, it } from "node:test";
+import { afterEach, beforeEach, describe, it } from 'vitest';
 import type { Model } from "@singularity-forge/pi-ai";
 import type { ModelRegistry } from "../core/model-registry.js";
 import { listModels } from "./list-models.js";

packages/pi-coding-agent/src/core/agent-session-custom-message-queue.test.ts

@@ -2,7 +2,7 @@ import assert from "node:assert/strict";
 import { mkdtempSync, rmSync } from "node:fs";
 import { tmpdir } from "node:os";
 import { join } from "node:path";
-import { afterEach, beforeEach, describe, it } from "node:test";
+import { afterEach, beforeEach, describe, it } from 'vitest';
 
 import { Agent, type AgentMessage } from "@singularity-forge/pi-agent-core";
 import { AgentSession } from "./agent-session.js";

packages/pi-coding-agent/src/core/agent-session-model-switch.test.ts

@@ -1,4 +1,4 @@
-import test from "node:test";
+import { test } from 'vitest';
 import assert from "node:assert/strict";
 import { readFileSync } from "node:fs";
 import { join } from "node:path";

packages/pi-coding-agent/src/core/agent-session-print-mode-persist.test.ts

@@ -1,4 +1,4 @@
-import test from "node:test";
+import { test } from 'vitest';
 import assert from "node:assert/strict";
 import { readFileSync } from "node:fs";
 import { join } from "node:path";

packages/pi-coding-agent/src/core/agent-session-renderable-tools.test.ts

@@ -2,7 +2,7 @@ import assert from "node:assert/strict";
 import { mkdtempSync, rmSync } from "node:fs";
 import { tmpdir } from "node:os";
 import { join } from "node:path";
-import { afterEach, beforeEach, describe, it } from "node:test";
+import { afterEach, beforeEach, describe, it } from 'vitest';
 
 import { Agent } from "@singularity-forge/pi-agent-core";
 import { Type } from "@sinclair/typebox";

packages/pi-coding-agent/src/core/agent-session-tool-refresh.test.ts

@@ -1,7 +1,7 @@
 // SF — Regression tests for #3616: tool list persistence across newSession() calls
 // Copyright (c) 2026 Jeremy McSpadden <jeremy@fluxlabs.net>
 
-import test, { describe } from "node:test";
+import { test, describe } from 'vitest';
 import assert from "node:assert/strict";
 import { readFileSync } from "node:fs";
 import { join } from "node:path";

packages/pi-coding-agent/src/core/auth-storage.test.ts

@@ -1,4 +1,4 @@
-import { describe, it } from "node:test";
+import { describe, it } from 'vitest';
 import assert from "node:assert/strict";
 import { AuthStorage } from "./auth-storage.js";
 

packages/pi-coding-agent/src/core/chat-controller-ordering.test.ts

@@ -1,5 +1,5 @@
 import assert from "node:assert/strict";
-import { test } from "node:test";
+import {  } from 'vitest';
 
 import { handleAgentEvent } from "../modes/interactive/controllers/chat-controller.js";
 

packages/pi-coding-agent/src/core/compaction-utils.test.ts

@@ -1,5 +1,5 @@
 import assert from "node:assert/strict";
-import test from "node:test";
+import { test } from 'vitest';
 
 import type { Message } from "@singularity-forge/pi-ai";
 

packages/pi-coding-agent/src/core/compaction/compaction.test.ts

@@ -4,7 +4,7 @@
  */
 
 import assert from "node:assert/strict";
-import { describe, it, mock } from "node:test";
+import { vi, describe, it } from 'vitest';
 
 import type { AgentMessage } from "@singularity-forge/pi-agent-core";
 import type { Model, AssistantMessage } from "@singularity-forge/pi-ai";
@@ -126,7 +126,7 @@ describe("generateSummary — chunked fallback (#2932)", () => {
 
 		// Track calls
 		const calls: string[] = [];
-		const mockComplete = mock.fn(async (_model: any, context: any, _options: any) => {
+		const mockComplete = vi.fn(async (_model: any, context: any, _options: any) => {
 			const userMsg = context.messages?.[0];
 			const text =
 				typeof userMsg?.content === "string"
@@ -184,7 +184,7 @@ describe("generateSummary — chunked fallback (#2932)", () => {
 			`Test setup: ${totalTokens} tokens should fit in ${model.contextWindow} context window`,
 		);
 
-		const mockComplete = mock.fn(async () => makeFakeResponse("Single pass summary"));
+		const mockComplete = vi.fn(async () => makeFakeResponse("Single pass summary"));
 
 		await generateSummary(messages, model, reserveTokens, undefined, undefined, undefined, undefined, mockComplete);
 
@@ -206,7 +206,7 @@ describe("generateSummary — chunked fallback (#2932)", () => {
 		const previousSummary = "Previous session summary content";
 
 		const prompts: string[] = [];
-		const mockComplete = mock.fn(async (_model: any, context: any) => {
+		const mockComplete = vi.fn(async (_model: any, context: any) => {
 			const userMsg = context.messages?.[0];
 			const text =
 				typeof userMsg?.content === "string"

packages/pi-coding-agent/src/core/contextual-tips.test.ts

@@ -1,4 +1,4 @@
-import { describe, it } from "node:test";
+import { describe, it } from 'vitest';
 import assert from "node:assert/strict";
 import { ContextualTips } from "./contextual-tips.js";
 

packages/pi-coding-agent/src/core/discovery-cache.test.ts

@@ -2,7 +2,7 @@ import assert from "node:assert/strict";
 import { mkdirSync, rmSync, writeFileSync } from "node:fs";
 import { tmpdir } from "node:os";
 import { join } from "node:path";
-import { afterEach, beforeEach, describe, it } from "node:test";
+import { afterEach, beforeEach, describe, it } from 'vitest';
 import { ModelDiscoveryCache } from "./discovery-cache.js";
 
 let testDir: string;

packages/pi-coding-agent/src/core/extensions/extension-manifest.test.ts

@@ -1,7 +1,7 @@
 // SF — Extension Manifest Tests
 // Copyright (c) 2026 Jeremy McSpadden <jeremy@fluxlabs.net>
 
-import { describe, it } from "node:test";
+import { describe, it } from 'vitest';
 import assert from "node:assert/strict";
 import { mkdtempSync, mkdirSync, writeFileSync } from "node:fs";
 import { join } from "node:path";

packages/pi-coding-agent/src/core/extensions/extension-sort.test.ts

@@ -1,7 +1,7 @@
 // SF — Extension Sort Tests
 // Copyright (c) 2026 Jeremy McSpadden <jeremy@fluxlabs.net>
 
-import { describe, it } from "node:test";
+import { describe, it } from 'vitest';
 import assert from "node:assert/strict";
 import { mkdtempSync, mkdirSync, writeFileSync } from "node:fs";
 import { join } from "node:path";

packages/pi-coding-agent/src/core/extensions/loader.test.ts

@@ -1,4 +1,4 @@
-import { describe, it, beforeEach, afterEach } from "node:test";
+import { describe, it, beforeEach, afterEach } from 'vitest';
 import assert from "node:assert/strict";
 import * as fs from "node:fs";
 import * as os from "node:os";

packages/pi-coding-agent/src/core/extensions/provider-registration.test.ts

@@ -1,7 +1,7 @@
 // sf — Regression test: pendingProviderRegistrations must be flushed exactly once (#3576)
 // Copyright (c) 2026 Jeremy McSpadden <jeremy@fluxlabs.net>
 
-import { describe, it } from "node:test";
+import { describe, it } from 'vitest';
 import assert from "node:assert/strict";
 
 /**

packages/pi-coding-agent/src/core/extensions/runner.test.ts

@@ -1,5 +1,5 @@
 import assert from "node:assert/strict";
-import { describe, it, mock } from "node:test";
+import { describe, it } from 'vitest';
 import { ExtensionRunner } from "./runner.js";
 import type { Extension, ExtensionRuntime, ToolCallEvent } from "./index.js";
 import { SessionManager } from "../session-manager.js";

packages/pi-coding-agent/src/core/fallback-resolver.test.ts

@@ -1,7 +1,7 @@
 // SF Provider Fallback Resolver Tests
 // Copyright (c) 2026 Jeremy McSpadden <jeremy@fluxlabs.net>
 
-import { describe, it, beforeEach, mock } from "node:test";
+import { vi, describe, it, beforeEach } from 'vitest';
 import assert from "node:assert/strict";
 import { FallbackResolver } from "./fallback-resolver.js";
 import type { Api, Model } from "@singularity-forge/pi-ai";
@@ -49,7 +49,7 @@ function createResolver(overrides?: {
 	} as unknown as SettingsManager;
 
 	const authStorage = {
-		markProviderExhausted: mock.fn(),
+		markProviderExhausted: vi.fn(),
 		isProviderAvailable: overrides?.isProviderAvailable ?? (() => true),
 		hasAuth: overrides?.hasAuth ?? (() => true),
 	} as unknown as AuthStorage;

packages/pi-coding-agent/src/core/fs-utils.test.ts

@@ -1,5 +1,5 @@
 import assert from "node:assert/strict";
-import { describe, it, afterEach } from "node:test";
+import { describe, it, afterEach } from 'vitest';
 import { mkdtempSync, readFileSync, rmSync, existsSync } from "node:fs";
 import { join } from "node:path";
 import { tmpdir } from "node:os";

packages/pi-coding-agent/src/core/image-overflow-recovery.test.ts

@@ -1,5 +1,5 @@
 import assert from "node:assert/strict";
-import { describe, it } from "node:test";
+import { describe, it } from 'vitest';
 import {
 	isImageDimensionError,
 	MANY_IMAGE_MAX_DIMENSION,

packages/pi-coding-agent/src/core/keybindings-followup.test.ts

@@ -1,7 +1,7 @@
 import assert from "node:assert/strict";
 import { readFileSync } from "node:fs";
 import { join } from "node:path";
-import test from "node:test";
+import { test } from 'vitest';
 
 const source = readFileSync(join(process.cwd(), "packages/pi-coding-agent/src/core/keybindings.ts"), "utf-8");
 

packages/pi-coding-agent/src/core/lifecycle-hooks.test.ts

@@ -2,7 +2,7 @@ import assert from "node:assert/strict";
 import { mkdtempSync, mkdirSync, rmSync, writeFileSync, existsSync } from "node:fs";
 import { homedir, tmpdir } from "node:os";
 import { join, resolve } from "node:path";
-import { describe, it } from "node:test";
+import { describe, it } from 'vitest';
 import {
 	readManifestRuntimeDeps,
 	collectRuntimeDependencies,

packages/pi-coding-agent/src/core/lsp/lsp-integration.test.ts

@@ -8,7 +8,7 @@
  * Run: node --experimental-strip-types --test src/core/lsp/lsp-integration.test.ts
  * (from packages/pi-coding-agent/)
  */
-import test from "node:test";
+import { test } from 'vitest';
 import assert from "node:assert/strict";
 import { spawn } from "node:child_process";
 import * as fs from "node:fs";

packages/pi-coding-agent/src/core/lsp/lsp-legacy-alias.test.ts

@@ -9,7 +9,7 @@
  * containing an lsp.json that uses the legacy key.
  */
 
-import { describe, it, beforeEach, afterEach } from "node:test";
+import { describe, it, beforeEach, afterEach } from 'vitest';
 import assert from "node:assert/strict";
 import * as fs from "node:fs";
 import * as path from "node:path";

packages/pi-coding-agent/src/core/messages.test.ts

@@ -6,7 +6,7 @@
  * user-typed input when converted to LLM messages.
  */
 
-import test from "node:test";
+import { test } from 'vitest';
 import assert from "node:assert/strict";
 import { convertToLlm, type CustomMessage } from "./messages.js";
 

packages/pi-coding-agent/src/core/model-discovery.test.ts

@@ -1,5 +1,5 @@
 import assert from "node:assert/strict";
-import { describe, it } from "node:test";
+import { describe, it } from 'vitest';
 import {
 	DISCOVERY_TTLS,
 	getDefaultTTL,

packages/pi-coding-agent/src/core/model-registry-auth-mode.test.ts

@@ -1,5 +1,5 @@
 import assert from "node:assert/strict";
-import { describe, it } from "node:test";
+import { describe, it } from 'vitest';
 import type { Api, Model, SimpleStreamOptions, Context, AssistantMessageEventStream } from "@singularity-forge/pi-ai";
 import { getApiProvider } from "@singularity-forge/pi-ai";
 import { AuthStorage, type AuthStorageData } from "./auth-storage.js";

packages/pi-coding-agent/src/core/model-registry-discovery.test.ts

@@ -2,7 +2,7 @@ import assert from "node:assert/strict";
 import { mkdirSync, rmSync } from "node:fs";
 import { tmpdir } from "node:os";
 import { join } from "node:path";
-import { afterEach, beforeEach, describe, it } from "node:test";
+import { afterEach, beforeEach, describe, it } from 'vitest';
 import { AuthStorage } from "./auth-storage.js";
 import { ModelDiscoveryCache } from "./discovery-cache.js";
 import {

packages/pi-coding-agent/src/core/model-registry-env-fallback.test.ts

@@ -1,5 +1,5 @@
 import assert from "node:assert/strict";
-import { describe, it } from "node:test";
+import { describe, it } from 'vitest';
 import type { AuthStorage } from "./auth-storage.js";
 import { ModelRegistry } from "./model-registry.js";
 

packages/pi-coding-agent/src/core/model-registry-proxy-routing.test.ts

@@ -1,5 +1,5 @@
 import assert from "node:assert/strict";
-import { describe, it } from "node:test";
+import { describe, it } from 'vitest';
 import type { Api, AssistantMessageEventStream, Context, Model, SimpleStreamOptions } from "@singularity-forge/pi-ai";
 import type { AuthStorage } from "./auth-storage.js";
 import { ModelRegistry } from "./model-registry.js";

packages/pi-coding-agent/src/core/model-resolver-initial-model-auth.test.ts

@@ -1,5 +1,5 @@
 import assert from "node:assert/strict";
-import { describe, it } from "node:test";
+import { describe, it } from 'vitest';
 import type { Api, Model } from "@singularity-forge/pi-ai";
 import type { ModelRegistry } from "./model-registry.js";
 import { findInitialModel } from "./model-resolver.js";

packages/pi-coding-agent/src/core/model-resolver.test.ts

@@ -5,7 +5,7 @@
  * "current".
  */
 
-import test from "node:test";
+import { test } from 'vitest';
 import assert from "node:assert/strict";
 import { findInitialModel } from "./model-resolver.js";
 

packages/pi-coding-agent/src/core/models-json-writer.test.ts

@@ -2,7 +2,7 @@ import assert from "node:assert/strict";
 import { existsSync, mkdirSync, readFileSync, rmSync } from "node:fs";
 import { tmpdir } from "node:os";
 import { join } from "node:path";
-import { afterEach, beforeEach, describe, it } from "node:test";
+import { afterEach, beforeEach, describe, it } from 'vitest';
 import { ModelsJsonWriter } from "./models-json-writer.js";
 
 let testDir: string;

packages/pi-coding-agent/src/core/package-commands.test.ts

@@ -3,7 +3,7 @@ import { existsSync, mkdtempSync, mkdirSync, readFileSync, rmSync, writeFileSync
 import { tmpdir } from "node:os";
 import { join } from "node:path";
 import { Writable } from "node:stream";
-import { describe, it } from "node:test";
+import { describe, it } from 'vitest';
 import { runPackageCommand } from "./package-commands.js";
 
 function createCaptureStream() {

packages/pi-coding-agent/src/core/resolve-config-value.test.ts

@@ -1,4 +1,4 @@
-import { describe, it, beforeEach, afterEach } from "node:test";
+import { describe, it, beforeEach, afterEach } from 'vitest';
 import assert from "node:assert/strict";
 import {
 	resolveConfigValue,

packages/pi-coding-agent/src/core/resource-loader-cache-reset.test.ts

@@ -1,7 +1,7 @@
 // SF — Regression test for #3616: reload() must reset jiti extension loader cache
 // Copyright (c) 2026 Jeremy McSpadden <jeremy@fluxlabs.net>
 
-import test, { describe } from "node:test";
+import { test, describe } from 'vitest';
 import assert from "node:assert/strict";
 import { readFileSync } from "node:fs";
 import { join } from "node:path";

packages/pi-coding-agent/src/core/retry-handler.test.ts

@@ -6,7 +6,7 @@
  * downgrade from [1m] to base when no cross-provider fallback exists.
  */
 
-import { describe, it, beforeEach, mock, type Mock } from "node:test";
+import { vi, describe, it, beforeEach, type Mock } from 'vitest';
 import assert from "node:assert/strict";
 import { RetryHandler, type RetryHandlerDeps } from "./retry-handler.js";
 import type { Api, AssistantMessage, Model } from "@singularity-forge/pi-ai";
@@ -69,13 +69,13 @@ function createMockDeps(overrides?: {
 }): MockDeps {
 	const model = overrides?.model ?? createMockModel("anthropic", "claude-opus-4-6[1m]");
 	const emittedEvents: Array<Record<string, any>> = [];
-	const continueFn = mock.fn(async () => {});
-	const onModelChangeFn = mock.fn((_model: Model<any>) => {});
-	const markUsageLimitReached = mock.fn(
+	const continueFn = vi.fn(async () => {});
+	const onModelChangeFn = vi.fn((_model: Model<any>) => {});
+	const markUsageLimitReached = vi.fn(
 		() => overrides?.markUsageLimitReachedResult ?? false,
 	);
-	const findFallback = mock.fn(async () => overrides?.fallbackResult ?? null);
-	const findModel = mock.fn(
+	const findFallback = vi.fn(async () => overrides?.fallbackResult ?? null);
+	const findModel = vi.fn(
 		overrides?.findModelResult ?? ((_provider: string, _modelId: string) => undefined),
 	);
 
@@ -85,8 +85,8 @@ function createMockDeps(overrides?: {
 		agent: {
 			continue: continueFn,
 			state: { messages },
-			setModel: mock.fn(),
-			replaceMessages: mock.fn((newMessages: any[]) => {
+			setModel: vi.fn(),
+			replaceMessages: vi.fn((newMessages: any[]) => {
 				messages.length = 0;
 				messages.push(...newMessages);
 			}),

packages/pi-coding-agent/src/core/sdk.test.ts

@@ -1,7 +1,7 @@
 // pi-coding-agent / CredentialCooldownError unit tests
 // Copyright (c) 2026 Jeremy McSpadden <jeremy@fluxlabs.net>
 
-import { describe, it } from "node:test";
+import { describe, it } from 'vitest';
 import assert from "node:assert/strict";
 import { CredentialCooldownError } from "./sdk.js";
 

packages/pi-coding-agent/src/core/session-manager.test.ts

@@ -1,5 +1,5 @@
 import assert from "node:assert/strict";
-import { describe, it, afterEach } from "node:test";
+import { describe, it, afterEach } from 'vitest';
 import { mkdtempSync, rmSync } from "node:fs";
 import { join } from "node:path";
 import { tmpdir } from "node:os";

packages/pi-coding-agent/src/core/settings-manager-security.test.ts

@@ -1,4 +1,4 @@
-import { describe, it, afterEach } from "node:test";
+import { describe, it, afterEach } from 'vitest';
 import assert from "node:assert/strict";
 import { mkdtempSync, mkdirSync, writeFileSync, rmSync } from "node:fs";
 import { join } from "node:path";

packages/pi-coding-agent/src/core/skill-tool.test.ts

@@ -2,7 +2,7 @@ import assert from "node:assert/strict";
 import { mkdirSync, mkdtempSync, rmSync, writeFileSync } from "node:fs";
 import { tmpdir } from "node:os";
 import { join } from "node:path";
-import { afterEach, beforeEach, describe, it } from "node:test";
+import { afterEach, beforeEach, describe, it } from 'vitest';
 
 import { Agent } from "@singularity-forge/pi-agent-core";
 import { AuthStorage } from "./auth-storage.js";

packages/pi-coding-agent/src/core/tools/bash-background.test.ts

@@ -7,7 +7,7 @@
  * the command does not already redirect stdout.
  */
 
-import { describe, it } from "node:test";
+import { describe, it } from 'vitest';
 import assert from "node:assert/strict";
 import { rewriteBackgroundCommand } from "./bash.js";
 

packages/pi-coding-agent/src/core/tools/bash-interceptor.test.ts

@@ -1,4 +1,4 @@
-import { describe, it } from "node:test";
+import { describe, it } from 'vitest';
 import assert from "node:assert/strict";
 import {
 	checkBashInterception,

packages/pi-coding-agent/src/core/tools/bash-spawn-windows.test.ts

@@ -16,7 +16,7 @@
  * See: singularity-forge/sf-run#XXXX
  */
 
-import test from "node:test";
+import { test } from 'vitest';
 import assert from "node:assert/strict";
 import { spawn } from "node:child_process";
 

packages/pi-coding-agent/src/core/tools/edit-diff.test.ts

@@ -2,7 +2,7 @@ import assert from "node:assert/strict";
 import { mkdtempSync, rmSync, writeFileSync } from "node:fs";
 import { tmpdir } from "node:os";
 import { join } from "node:path";
-import { describe, it } from "node:test";
+import { describe, it } from 'vitest';
 
 import {
 	computeEditDiff,

packages/pi-coding-agent/src/core/tools/hashline.test.ts

@@ -1,4 +1,4 @@
-import { describe, it } from "node:test";
+import { describe, it } from 'vitest';
 import assert from "node:assert/strict";
 import {
 	computeLineHash,

packages/pi-coding-agent/src/core/tools/path-utils.test.ts

@@ -1,4 +1,4 @@
-import { describe, it, mock, afterEach } from "node:test";
+import { describe, it, afterEach } from 'vitest';
 import assert from "node:assert/strict";
 import { mkdtempSync, writeFileSync, symlinkSync, unlinkSync, rmdirSync } from "node:fs";
 import { tmpdir } from "node:os";

packages/pi-coding-agent/src/core/tools/spawn-shell-windows.test.ts

@@ -13,7 +13,7 @@
  * Fixes: singularity-forge/sf-run#2854
  */
 
-import test from "node:test";
+import { test } from 'vitest';
 import assert from "node:assert/strict";
 import { readFileSync } from "node:fs";
 import { join, dirname, relative } from "node:path";

packages/pi-coding-agent/src/modes/interactive/components/__tests__/login-dialog.test.ts

@@ -1,4 +1,4 @@
-import { describe, test } from "node:test";
+import { describe } from 'vitest';
 import assert from "node:assert/strict";
 import { buildAuthUrlPresentation } from "../login-dialog.js";
 

packages/pi-coding-agent/src/modes/interactive/components/__tests__/provider-display-name.test.ts

@@ -1,5 +1,5 @@
 // SF — Provider display name mapping tests
-import { test, describe } from "node:test";
+import { describe } from 'vitest';
 import assert from "node:assert/strict";
 import { providerDisplayName } from "../model-selector.js";
 

packages/pi-coding-agent/src/modes/interactive/components/__tests__/timestamp.test.ts

@@ -1,4 +1,4 @@
-import { test, describe } from "node:test";
+import { describe } from 'vitest';
 import assert from "node:assert/strict";
 import { formatTimestamp } from "../timestamp.js";
 

packages/pi-coding-agent/src/modes/interactive/components/__tests__/tool-execution.test.ts

@@ -1,4 +1,4 @@
-import { describe, test } from "node:test";
+import { describe } from 'vitest';
 import assert from "node:assert/strict";
 import stripAnsi from "strip-ansi";
 import { ToolExecutionComponent } from "../tool-execution.js";

packages/pi-coding-agent/src/modes/interactive/components/dynamic-border.test.ts

@@ -1,5 +1,5 @@
 import assert from "node:assert/strict";
-import { describe, it, mock } from "node:test";
+import { describe, it } from 'vitest';
 
 import { DynamicBorder } from "./dynamic-border.js";
 

packages/pi-coding-agent/src/modes/interactive/controllers/chat-controller.test.ts

@@ -1,5 +1,5 @@
 import assert from "node:assert/strict";
-import test from "node:test";
+import { test } from 'vitest';
 
 import { findLatestPinnableText } from "./chat-controller.js";
 

packages/pi-coding-agent/src/modes/interactive/controllers/input-controller.test.ts

@@ -1,5 +1,5 @@
 import assert from "node:assert/strict";
-import test from "node:test";
+import { test } from 'vitest';
 
 import { setupEditorSubmitHandler } from "./input-controller.js";
 

packages/pi-coding-agent/src/modes/rpc/rpc-protocol-v2.test.ts

@@ -6,7 +6,7 @@
  * mock child processes using PassThrough streams.
  */
 
-import { describe, it, beforeEach, afterEach, mock } from "node:test";
+import { describe, it, beforeEach, afterEach } from 'vitest';
 import assert from "node:assert/strict";
 import { PassThrough } from "node:stream";
 import { attachJsonlLineReader, serializeJsonLine } from "./jsonl.js";

packages/pi-coding-agent/src/resources/extensions/memory/storage.test.ts

@@ -1,5 +1,5 @@
 import assert from "node:assert/strict";
-import { describe, it, afterEach } from "node:test";
+import { describe, it, afterEach } from 'vitest';
 import { mkdtempSync, rmSync, readFileSync, existsSync } from "node:fs";
 import { join } from "node:path";
 import { tmpdir } from "node:os";

packages/pi-coding-agent/src/tests/path-display.test.ts

@@ -5,7 +5,7 @@
  * the system prompt builder produces forward-slash paths for LLM consumption.
  */
 
-import test from "node:test";
+import { test } from 'vitest';
 import assert from "node:assert/strict";
 import { toPosixPath } from "../utils/path-display.js";
 import { buildSystemPrompt } from "../core/system-prompt.js";

packages/pi-coding-agent/src/tests/system-prompt-skill-filter.test.ts

@@ -3,7 +3,7 @@
 // filter lets consumers narrow the <available_skills> catalog rendered into
 // the cached system prompt without touching skill loading or invocation.
 
-import test from "node:test";
+import { test } from 'vitest';
 import assert from "node:assert/strict";
 
 import { buildSystemPrompt } from "../core/system-prompt.js";

packages/pi-tui/src/__tests__/autocomplete.test.ts

@@ -1,4 +1,4 @@
-import { describe, it } from "node:test";
+import { describe, it } from 'vitest';
 import assert from "node:assert/strict";
 import { CombinedAutocompleteProvider } from "../autocomplete.js";
 import type { SlashCommand } from "../autocomplete.js";

packages/pi-tui/src/__tests__/fuzzy.test.ts

@@ -1,4 +1,4 @@
-import { describe, it } from "node:test";
+import { describe, it } from 'vitest';
 import assert from "node:assert/strict";
 import { fuzzyMatch, fuzzyFilter } from "../fuzzy.js";
 

packages/pi-tui/src/__tests__/overlay-layout.test.ts

@@ -1,6 +1,6 @@
 // pi-tui — Overlay Layout Tests (backdrop dimming)
 
-import { describe, it } from "node:test";
+import { describe, it } from 'vitest';
 import assert from "node:assert/strict";
 import { compositeOverlays, type OverlayEntry } from "../overlay-layout.js";