diff --git a/packages/rstack/src/fmt/config.ts b/packages/rstack/src/fmt/config.ts
index 68f00747..0246643d 100644
--- a/packages/rstack/src/fmt/config.ts
+++ b/packages/rstack/src/fmt/config.ts
@@ -1,4 +1,5 @@
 import { dirname } from 'node:path';
+// rslint-disable-next-line import/default -- micromatch is CommonJS; Node.js supports its default import.
 import micromatch from 'micromatch';
 import type { RstackConfigDefinitions } from '../config.ts';
 import { resolveFmtConfigLayers } from '../configLayers.ts';
diff --git a/packages/rstack/src/fmt/discoverPaths.ts b/packages/rstack/src/fmt/discoverPaths.ts
index d4c85b60..6505cbd0 100644
--- a/packages/rstack/src/fmt/discoverPaths.ts
+++ b/packages/rstack/src/fmt/discoverPaths.ts
@@ -1,6 +1,7 @@
 import { lstat, readFile } from 'node:fs/promises';
 import path from 'node:path';
 import isBinaryPath from 'is-binary-path';
+// rslint-disable-next-line import/default -- micromatch is CommonJS; Node.js supports its default import.
 import micromatch from 'micromatch';
 import readdir, { type Dirent, type DirentLike } from 'tiny-readdir';
 import type { GitIgnoreMatcher as NativeGitIgnoreMatcher } from '../../binding.cjs';
diff --git a/packages/rstack/src/fmt/sortPackageJsonPlugin.ts b/packages/rstack/src/fmt/sortPackageJsonPlugin.ts
index 7661db8c..c793877d 100644
--- a/packages/rstack/src/fmt/sortPackageJsonPlugin.ts
+++ b/packages/rstack/src/fmt/sortPackageJsonPlugin.ts
@@ -1,6 +1,6 @@
 import type { Plugin } from 'prettier';
 import { parsers } from 'prettier/plugins/babel';
-import sortPackageJson from 'sort-package-json';
+import { sortPackageJson } from 'sort-package-json';
 
 const sortPackageJsonPlugin: Plugin = {
   parsers: {
diff --git a/packages/rstack/src/fmt/workerPool.ts b/packages/rstack/src/fmt/workerPool.ts
index 800e4768..c2ced0bf 100644
--- a/packages/rstack/src/fmt/workerPool.ts
+++ b/packages/rstack/src/fmt/workerPool.ts
@@ -1,7 +1,7 @@
 // Derived from @prettier/cli, see THIRD_PARTY_NOTICES.md
 
 import { availableParallelism } from 'node:os';
-import Tinypool from 'tinypool';
+import { Tinypool } from 'tinypool';
 import type { FmtFileCache, FmtFileRequest } from './types.ts';
 
 type FmtWorkerMethods = typeof import('./worker.ts');
diff --git a/rstack.config.ts b/rstack.config.ts
index 8b3507ce..3b8a2fbe 100644
--- a/rstack.config.ts
+++ b/rstack.config.ts
@@ -2,9 +2,19 @@
 import { define } from 'rstack';
 import skillsLock from './skills-lock.json' with { type: 'json' };
 
-define.lint(({ js, ts, rstestPlugin }) => [
+define.lint(({ js, ts, importPlugin, rstestPlugin }) => [
   js.configs.recommended,
   ts.configs.recommendedTypeChecked,
+  importPlugin.configs.recommended,
+  {
+    files: [
+      'packages/create-rstack/template-*/**',
+      'packages/rstack/tests/types/**',
+    ],
+    rules: {
+      'import/no-unresolved': 'off',
+    },
+  },
   {
     files: ['**/*.test.{ts,tsx}'],
     ...rstestPlugin.configs.recommended,