From 3a33e21d78499ceeea440e25867ba029d222fb35 Mon Sep 17 00:00:00 2001
From: Elliot Winkler <elliot.winkler@gmail.com>
Date: Fri, 23 Oct 2026 13:25:29 -0600
Subject: [PATCH 1/3] Use Node16 for module + moduleResolution; support *.mts
 files

We want to upgrade `@metamask/auto-changelog`, but 7.0.0 is ESM-only
and exclusively exports types via `exports`. `exports` are not supported
by TypeScript's `node` module resolution strategy, so this commit
updates `tsconfig.json` to use `Node16` instead.

That change forced three other changes:

- We've enabled `skipLibCheck`, as `@metamask/superstruct` starts
  producing type errors otherwise.
- We've renamed `changelog-check.ts` to `changelog-check.mts`, because
  TypeScript now sees `execa` as an ESM-only module, and to be able
  import ESM-only modules, we need the file to be interpreted as ESM.
- We've updated the ESLint and depcheck configurations to support `.mts`
  files.
---
 .depcheckrc.json                                | 3 ++-
 .eslintrc.js                                    | 6 +++---
 package.json                                    | 2 +-
 src/{changelog-check.ts => changelog-check.mts} | 0
 tsconfig.json                                   | 5 +++--
 5 files changed, 9 insertions(+), 7 deletions(-)
 rename src/{changelog-check.ts => changelog-check.mts} (100%)

diff --git a/.depcheckrc.json b/.depcheckrc.json
index 28529cef..2d47463c 100644
--- a/.depcheckrc.json
+++ b/.depcheckrc.json
@@ -1,7 +1,8 @@
 {
   "parsers": {
     "**/*.mjs": "es6",
-    "**/*.ts": "typescript"
+    "**/*.ts": "typescript",
+    "**/*.mts": "typescript"
   },
   "ignores": [
     "@lavamoat/allow-scripts",
diff --git a/.eslintrc.js b/.eslintrc.js
index c1cb4a1e..112e5826 100644
--- a/.eslintrc.js
+++ b/.eslintrc.js
@@ -5,12 +5,12 @@ module.exports = {
 
   overrides: [
     {
-      files: ['*.ts'],
+      files: ['*.ts', '*.mts'],
       extends: ['@metamask/eslint-config-typescript'],
     },
 
     {
-      files: ['*.js', '*.ts'],
+      files: ['*.js', '*.ts', '*.mts'],
       parserOptions: {
         sourceType: 'script',
       },
@@ -18,7 +18,7 @@ module.exports = {
     },
 
     {
-      files: ['*.mjs'],
+      files: ['*.mjs', '*.mts'],
       parserOptions: {
         sourceType: 'module',
         ecmaVersion: 2022,
diff --git a/package.json b/package.json
index 130840f5..f8afa10d 100644
--- a/package.json
+++ b/package.json
@@ -8,7 +8,7 @@
     "url": "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/MetaMask/github-tools.git"
   },
   "scripts": {
-    "changelog:check": "ts-node src/changelog-check.ts",
+    "changelog:check": "node --loader ts-node/esm src/changelog-check.mts",
     "count-references-to-contributor-docs": "ts-node --swc src/scripts/count-references-to-contributor-docs/cli.ts",
     "gen:commits": "node .github/scripts/generate-rc-commits.mjs",
     "get-review-metrics": "ts-node src/get-review-metrics.ts",
diff --git a/src/changelog-check.ts b/src/changelog-check.mts
similarity index 100%
rename from src/changelog-check.ts
rename to src/changelog-check.mts
diff --git a/tsconfig.json b/tsconfig.json
index a6ca900d..25251915 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -4,11 +4,12 @@
     "exactOptionalPropertyTypes": true,
     "forceConsistentCasingInFileNames": true,
     "lib": ["ES2022"],
-    "module": "CommonJS",
-    "moduleResolution": "node",
+    "module": "Node16",
+    "moduleResolution": "Node16",
     "noEmit": true,
     "noErrorTruncation": true,
     "noUncheckedIndexedAccess": true,
+    "skipLibCheck": true,
     "strict": true,
     "target": "es2020"
   },

From a78baec7ccbc05cff3b52e39a9d62d0cfbbdbc48 Mon Sep 17 00:00:00 2001
From: Elliot Winkler <elliot.winkler@gmail.com>
Date: Fri, 23 Oct 2026 13:34:22 -0600
Subject: [PATCH 2/3] Update coverage thresholds

---
 jest.config.js | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/jest.config.js b/jest.config.js
index 80e4ce81..9c906cdf 100644
--- a/jest.config.js
+++ b/jest.config.js
@@ -41,10 +41,10 @@ module.exports = {
   // An object that configures minimum threshold enforcement for coverage results
   coverageThreshold: {
     global: {
-      branches: 49.56,
-      functions: 55.62,
-      lines: 56.13,
-      statements: 56.19,
+      branches: 60.84,
+      functions: 62.25,
+      lines: 65.68,
+      statements: 65.84,
     },
   },
 

From 2c231f1e3d309f1d0d21abff8c4033244fa3960c Mon Sep 17 00:00:00 2001
From: Elliot Winkler <elliot.winkler@gmail.com>
Date: Fri, 23 Oct 2026 13:44:29 -0600
Subject: [PATCH 3/3] Make sure ESLint sees .mts files

---
 package.json | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/package.json b/package.json
index f8afa10d..715f0a3e 100644
--- a/package.json
+++ b/package.json
@@ -16,7 +16,7 @@
     "lint:constraints": "yarn constraints",
     "lint:changelog": "auto-changelog validate --prettier",
     "lint:dependencies": "depcheck && yarn dedupe",
-    "lint:eslint": "eslint . --cache --ext js,ts && eslint --no-ignore --cache --ext mjs .github/actions/draft-segment-schema-pr",
+    "lint:eslint": "eslint . --cache --ext js,ts,mts && eslint --no-ignore --cache --ext mjs .github/actions/draft-segment-schema-pr",
     "lint:fix": "yarn lint:eslint --fix && yarn lint:constraints --fix && yarn lint:misc --write && yarn lint:dependencies",
     "lint:misc": "prettier '**/*.json' '**/*.md' '**/*.yml' '!.yarnrc.yml' '!.cursor/**' --ignore-path .gitignore --no-error-on-unmatched-pattern",
     "lint:tsc": "tsc",