diff --git a/.changeset/simple-tests-shine.md b/.changeset/simple-tests-shine.md
new file mode 100644
index 000000000..cfbc666e1
--- /dev/null
+++ b/.changeset/simple-tests-shine.md
@@ -0,0 +1,4 @@
+---
+---
+
+ci: simplify test scripts and separate coverage from test runs
diff --git a/.github/workflows/ci-build.yml b/.github/workflows/ci-build.yml
index 342a54a53..275aed6bf 100644
--- a/.github/workflows/ci-build.yml
+++ b/.github/workflows/ci-build.yml
@@ -6,6 +6,9 @@ on:
       - main
   pull_request:
 
+env:
+  LATEST_SUPPORTED_NODE: "24.x"
+
 jobs:
   test:
     timeout-minutes: 6
@@ -64,15 +67,14 @@ jobs:
         run: npm run lint
       - name: Build docs
         run: npm run docs
-      - name: Run tests (Node 18/20)
-        if: matrix.node-version != '22.x' && matrix.node-version != '24.x'
-        # Node 18 lacks --test-reporter; Node 20 has coverage bugs. Use simpler script.
-        run: npm run test:node18 --workspaces --if-present
-      - name: Run tests (Node 22+)
-        if: matrix.node-version == '22.x' || matrix.node-version == '24.x'
+      - name: Run tests
+        if: matrix.node-version != env.LATEST_SUPPORTED_NODE
         run: npm test
+      - name: Run test coverage
+        if: matrix.node-version == env.LATEST_SUPPORTED_NODE
+        run: npm run test:coverage
       - name: Upload code coverage
-        if: matrix.node-version == '24.x' && matrix.os == 'ubuntu-latest'
+        if: matrix.node-version == env.LATEST_SUPPORTED_NODE && matrix.os == 'ubuntu-latest'
         uses: codecov/codecov-action@57e3a136b779b570ffcdbf80b3bdc90e7fab3de2 # v6.0.0
         with:
           fail_ci_if_error: true
diff --git a/package.json b/package.json
index 7a62f1211..73aab5b7d 100644
--- a/package.json
+++ b/package.json
@@ -24,6 +24,7 @@
     "lint": "npx @biomejs/biome check packages",
     "lint:fix": "npx @biomejs/biome check --write packages",
     "test": "npm test --workspaces --if-present",
+    "test:coverage": "npm run test:coverage --workspaces --if-present",
     "version": "npm run changeset version && npm install && npm run docs"
   },
   "devDependencies": {
diff --git a/packages/cli-hooks/package.json b/packages/cli-hooks/package.json
index 77cdfb43b..de198fe84 100644
--- a/packages/cli-hooks/package.json
+++ b/packages/cli-hooks/package.json
@@ -37,9 +37,8 @@
   "scripts": {
     "build": "shx chmod +x src/*.js",
     "prelint": "tsc --noemit --module es2022 --maxNodeModuleJsDepth 0 --project ./jsconfig.json",
-    "test": "npm run test:unit",
-    "test:node18": "bash -c 'node --test --test-reporter=spec src/*.test.js'",
-    "test:unit": "node --experimental-test-coverage --test-reporter=spec --test-reporter-destination=stdout --test-reporter=lcov --test-reporter-destination=lcov.info --test-reporter=junit --test-reporter-destination=test-results.xml --test src/*.test.js"
+    "test": "bash -c 'node --test-reporter=spec --test-reporter-destination=stdout --test-reporter=junit --test-reporter-destination=test-results.xml --test src/*.test.js'",
+    "test:coverage": "node --experimental-test-coverage --test-reporter=spec --test-reporter-destination=stdout --test-reporter=lcov --test-reporter-destination=lcov.info --test-reporter=junit --test-reporter-destination=test-results.xml --test src/*.test.js"
   },
   "bin": {
     "slack-cli-check-update": "src/check-update.js",
diff --git a/packages/cli-test/package.json b/packages/cli-test/package.json
index f580c4a3f..918898f79 100644
--- a/packages/cli-test/package.json
+++ b/packages/cli-test/package.json
@@ -32,9 +32,8 @@
     "build:clean": "shx rm -rf ./dist",
     "docs": "npx typedoc --plugin typedoc-plugin-markdown",
     "prepack": "npm run build",
-    "test": "npm run test:unit",
-    "test:node18": "npm run build && cross-env SLACK_CLI_PATH=/doesnt/matter bash -O globstar -c 'node --test --test-reporter=spec --import tsx src/**/*.test.ts'",
-    "test:unit": "npm run build && cross-env SLACK_CLI_PATH=/doesnt/matter node --experimental-test-coverage --test-reporter=spec --test-reporter-destination=stdout --test-reporter=lcov --test-reporter-destination=lcov.info --test-reporter=junit --test-reporter-destination=test-results.xml --import tsx --test src/**/*.test.ts"
+    "test": "npm run build && bash -c 'cross-env SLACK_CLI_PATH=/doesnt/matter node --test-reporter=spec --test-reporter-destination=stdout --test-reporter=junit --test-reporter-destination=test-results.xml --import tsx --test src/**/*.test.ts'",
+    "test:coverage": "npm run build && cross-env SLACK_CLI_PATH=/doesnt/matter node --experimental-test-coverage --test-reporter=spec --test-reporter-destination=stdout --test-reporter=lcov --test-reporter-destination=lcov.info --test-reporter=junit --test-reporter-destination=test-results.xml --import tsx --test src/**/*.test.ts"
   },
   "dependencies": {
     "tree-kill": "^1.2.2",
diff --git a/packages/logger/package.json b/packages/logger/package.json
index d23e85875..de692522b 100644
--- a/packages/logger/package.json
+++ b/packages/logger/package.json
@@ -33,9 +33,8 @@
     "build:clean": "shx rm -rf ./dist",
     "docs": "npx typedoc --plugin typedoc-plugin-markdown",
     "prepack": "npm run build",
-    "test": "npm run test:unit",
-    "test:node18": "npm run build && node --test --test-reporter=spec --import tsx --test src/index.test.ts",
-    "test:unit": "npm run build && node --experimental-test-coverage --test-reporter=spec --test-reporter-destination=stdout --test-reporter=lcov --test-reporter-destination=lcov.info --test-reporter=junit --test-reporter-destination=test-results.xml --import tsx --test src/index.test.ts"
+    "test": "npm run build && node --test-reporter=spec --test-reporter-destination=stdout --test-reporter=junit --test-reporter-destination=test-results.xml --import tsx --test src/index.test.ts",
+    "test:coverage": "npm run build && node --experimental-test-coverage --test-reporter=spec --test-reporter-destination=stdout --test-reporter=lcov --test-reporter-destination=lcov.info --test-reporter=junit --test-reporter-destination=test-results.xml --import tsx --test src/index.test.ts"
   },
   "dependencies": {
     "@types/node": ">=18"
diff --git a/packages/oauth/package.json b/packages/oauth/package.json
index a19d0a90a..b03ee1414 100644
--- a/packages/oauth/package.json
+++ b/packages/oauth/package.json
@@ -35,9 +35,8 @@
     "build:clean": "shx rm -rf ./dist",
     "docs": "npx typedoc --plugin typedoc-plugin-markdown",
     "prepack": "npm run build",
-    "test": "npm run test:unit",
-    "test:node18": "npm run build && bash -O globstar -c 'node --test --test-reporter=spec --import tsx src/**/*.test.ts'",
-    "test:unit": "npm run build && node --experimental-test-coverage --test-reporter=spec --test-reporter-destination=stdout --test-reporter=lcov --test-reporter-destination=lcov.info --test-reporter=junit --test-reporter-destination=test-results.xml --import tsx --test src/**/*.test.ts",
+    "test": "npm run build && bash -c 'node --test-reporter=spec --test-reporter-destination=stdout --test-reporter=junit --test-reporter-destination=test-results.xml --import tsx --test src/**/*.test.ts'",
+    "test:coverage": "npm run build && node --experimental-test-coverage --test-reporter=spec --test-reporter-destination=stdout --test-reporter=lcov --test-reporter-destination=lcov.info --test-reporter=junit --test-reporter-destination=test-results.xml --import tsx --test src/**/*.test.ts",
     "watch": "npx nodemon --watch 'src' --ext 'ts' --exec npm run build"
   },
   "dependencies": {
diff --git a/packages/socket-mode/package.json b/packages/socket-mode/package.json
index 9f3f7b300..dd2ce97e2 100644
--- a/packages/socket-mode/package.json
+++ b/packages/socket-mode/package.json
@@ -44,9 +44,9 @@
     "docs": "npx typedoc --plugin typedoc-plugin-markdown",
     "prepack": "npm run build",
     "test": "npm run test:unit && npm run test:integration",
-    "test:node18": "npm run build && bash -c 'node --test --test-reporter=spec --import tsx src/*.test.ts' && npm run test:integration",
+    "test:coverage": "npm run build && node --experimental-test-coverage --test-reporter=spec --test-reporter-destination=stdout --test-reporter=lcov --test-reporter-destination=lcov.info --test-reporter=junit --test-reporter-destination=test-results.xml --import tsx --test src/*.test.ts",
     "test:integration": "npm run build && node --import tsx --test test/integration.test.js",
-    "test:unit": "npm run build && node --experimental-test-coverage --test-reporter=spec --test-reporter-destination=stdout --test-reporter=lcov --test-reporter-destination=lcov.info --test-reporter=junit --test-reporter-destination=test-results.xml --import tsx --test src/*.test.ts",
+    "test:unit": "npm run build && bash -c 'node --test-reporter=spec --test-reporter-destination=stdout --test-reporter=junit --test-reporter-destination=test-results.xml --import tsx --test src/*.test.ts'",
     "watch": "npx nodemon --watch 'src' --ext 'ts' --exec npm test"
   },
   "dependencies": {
diff --git a/packages/web-api/AGENTS.md b/packages/web-api/AGENTS.md
index d384a62aa..e40330374 100644
--- a/packages/web-api/AGENTS.md
+++ b/packages/web-api/AGENTS.md
@@ -225,7 +225,7 @@ expectAssignable<Parameters<typeof web.chat.appendStream>>([
 
 ```bash
 npm test --workspace=packages/web-api         # all tests
-npm run test:unit --workspace=packages/web-api # unit only
+npm test --workspace=packages/web-api            # unit only
 npm run test:types --workspace=packages/web-api # tsd only
 ```
 
diff --git a/packages/web-api/package.json b/packages/web-api/package.json
index a616329b9..22a38cddc 100644
--- a/packages/web-api/package.json
+++ b/packages/web-api/package.json
@@ -40,12 +40,11 @@
     "build:clean": "shx rm -rf ./dist",
     "docs": "npx typedoc --plugin typedoc-plugin-markdown",
     "prepack": "npm run build",
-    "test": "npm run test:unit",
-    "test:node18": "npm run build && bash -c 'node --test --test-reporter=spec --import tsx src/*.test.ts'",
+    "test": "npm run build && bash -c 'node --test-reporter=spec --test-reporter-destination=stdout --test-reporter=junit --test-reporter-destination=test-results.xml --import tsx --test src/*.test.ts'",
+    "test:coverage": "npm run build && node --experimental-test-coverage --test-reporter=spec --test-reporter-destination=stdout --test-reporter=lcov --test-reporter-destination=lcov.info --test-reporter=junit --test-reporter-destination=test-results.xml --import tsx --test src/*.test.ts",
     "test:integration": "npm run build && node test/integration/commonjs-project/index.js && node test/integration/esm-project/index.mjs && npm run test:integration:ts",
     "test:integration:ts": "cd test/integration/ts-4.7-project && npm i && npm run build",
     "test:types": "tsd",
-    "test:unit": "npm run build && node --experimental-test-coverage --test-reporter=spec --test-reporter-destination=stdout --test-reporter=lcov --test-reporter-destination=lcov.info --test-reporter=junit --test-reporter-destination=test-results.xml --import tsx --test src/*.test.ts",
     "watch": "npx nodemon --watch 'src' --ext 'ts' --exec npm run build"
   },
   "dependencies": {
diff --git a/packages/webhook/package.json b/packages/webhook/package.json
index 4a294b015..709cf3138 100644
--- a/packages/webhook/package.json
+++ b/packages/webhook/package.json
@@ -37,9 +37,8 @@
     "build:clean": "shx rm -rf ./dist",
     "docs": "npx typedoc --plugin typedoc-plugin-markdown",
     "prepack": "npm run build",
-    "test": "npm run test:unit",
-    "test:node18": "npm run build && node --test --test-reporter=spec --import tsx --test src/IncomingWebhook.test.ts",
-    "test:unit": "npm run build && node --experimental-test-coverage --test-reporter=spec --test-reporter-destination=stdout --test-reporter=lcov --test-reporter-destination=lcov.info --test-reporter=junit --test-reporter-destination=test-results.xml --import tsx --test src/IncomingWebhook.test.ts"
+    "test": "npm run build && node --test-reporter=spec --test-reporter-destination=stdout --test-reporter=junit --test-reporter-destination=test-results.xml --import tsx --test src/IncomingWebhook.test.ts",
+    "test:coverage": "npm run build && node --experimental-test-coverage --test-reporter=spec --test-reporter-destination=stdout --test-reporter=lcov --test-reporter-destination=lcov.info --test-reporter=junit --test-reporter-destination=test-results.xml --import tsx --test src/IncomingWebhook.test.ts"
   },
   "dependencies": {
     "@slack/types": "^2.20.1",