diff --git a/.github/workflows/ssh-relay-runtime-artifacts.yml b/.github/workflows/ssh-relay-runtime-artifacts.yml
index 605235033af..bd2e5713c30 100644
--- a/.github/workflows/ssh-relay-runtime-artifacts.yml
+++ b/.github/workflows/ssh-relay-runtime-artifacts.yml
@@ -105,6 +105,8 @@ jobs:
           set -euo pipefail
           node --check config/scripts/ssh-relay-runtime-reproducibility.mjs
           node --check config/scripts/ssh-relay-runtime-reproducibility.test.mjs
+          node --check config/scripts/build-ssh-relay-runtime.mjs
+          node --check config/scripts/ssh-relay-runtime-build.test.mjs
           pnpm exec vitest run --config config/vitest.config.ts \
             config/scripts/ssh-relay-node-release-verification.test.mjs \
             config/scripts/ssh-relay-node-tar-inspection.test.mjs \
@@ -269,6 +271,10 @@ jobs:
           if ($LASTEXITCODE -ne 0) { throw 'runtime reproducibility script syntax check failed' }
           node --check config/scripts/ssh-relay-runtime-reproducibility.test.mjs
           if ($LASTEXITCODE -ne 0) { throw 'runtime reproducibility test syntax check failed' }
+          node --check config/scripts/build-ssh-relay-runtime.mjs
+          if ($LASTEXITCODE -ne 0) { throw 'runtime build script syntax check failed' }
+          node --check config/scripts/ssh-relay-runtime-build.test.mjs
+          if ($LASTEXITCODE -ne 0) { throw 'runtime build test syntax check failed' }
           pnpm exec vitest run --config config/vitest.config.ts `
             config/scripts/ssh-relay-node-release-verification.test.mjs `
             config/scripts/ssh-relay-node-tar-inspection.test.mjs `
diff --git a/config/scripts/build-ssh-relay-runtime.mjs b/config/scripts/build-ssh-relay-runtime.mjs
index 8bf4725b455..2ae076aafc0 100644
--- a/config/scripts/build-ssh-relay-runtime.mjs
+++ b/config/scripts/build-ssh-relay-runtime.mjs
@@ -1,5 +1,3 @@
-#!/usr/bin/env node
-
 import { execFile } from 'node:child_process'
 import { mkdir, readFile, rm } from 'node:fs/promises'
 import { dirname, isAbsolute, join, relative, resolve, sep } from 'node:path'
diff --git a/config/scripts/ssh-relay-runtime-workflow.test.mjs b/config/scripts/ssh-relay-runtime-workflow.test.mjs
index 44966859d41..9d701eaa429 100644
--- a/config/scripts/ssh-relay-runtime-workflow.test.mjs
+++ b/config/scripts/ssh-relay-runtime-workflow.test.mjs
@@ -64,9 +64,15 @@ describe('SSH relay runtime artifact workflow', () => {
     expect(source).toContain(
       'node --check config/scripts/ssh-relay-runtime-reproducibility.test.mjs'
     )
+    expect(
+      source.match(/node --check config\/scripts\/build-ssh-relay-runtime\.mjs/g)
+    ).toHaveLength(2)
+    expect(
+      source.match(/node --check config\/scripts\/ssh-relay-runtime-build\.test\.mjs/g)
+    ).toHaveLength(2)
     expect(source.match(/ssh-relay-node-pty-build\.test\.mjs/g)).toHaveLength(2)
     expect(source.match(/ssh-relay-node-pty-windows-build-determinism\.test\.mjs/g)).toHaveLength(2)
-    expect(source.match(/ssh-relay-runtime-build\.test\.mjs/g)).toHaveLength(2)
+    expect(source.match(/ssh-relay-runtime-build\.test\.mjs/g)).toHaveLength(4)
     expect(source.match(/--work-directory/g)).toHaveLength(2)
     expect(source).toContain('work_directory="$RUNNER_TEMP/orca-ssh-relay-runtime-build-work"')
     expect(source).toContain(