diff --git a/packages/graalvm/build.gradle.kts b/packages/graalvm/build.gradle.kts
index d5999451b..0dc996bf2 100644
--- a/packages/graalvm/build.gradle.kts
+++ b/packages/graalvm/build.gradle.kts
@@ -619,6 +619,9 @@ dependencies {
   testImplementation(libs.junit.jupiter.api)
   testImplementation(libs.junit.jupiter.params)
   testImplementation(mn.micronaut.test.junit5)
+  testImplementation(projects.packages.graalvmJs)
+  testImplementation(projects.packages.graalvmTs)
+  testImplementation(projects.packages.graalvmWasm)
   testImplementation(projects.packages.graalvmPy)
   testRuntimeOnly(libs.junit.jupiter.engine)
   testImplementation(libs.jna.jpms)
diff --git a/packages/graalvm/src/test/kotlin/elide/runtime/winter/CommonMinimumTest.kt b/packages/graalvm/src/test/kotlin/elide/runtime/winter/CommonMinimumTest.kt
new file mode 100644
index 000000000..05be33712
--- /dev/null
+++ b/packages/graalvm/src/test/kotlin/elide/runtime/winter/CommonMinimumTest.kt
@@ -0,0 +1,254 @@
+/*
+ * Copyright (c) 2024-2025 Elide Technologies, Inc.
+ *
+ * Licensed under the MIT license (the "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ *   https://opensource.org/license/mit/
+ *
+ * Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on
+ * an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under the License.
+ */
+package elide.runtime.winter
+
+import org.graalvm.polyglot.Context
+import org.graalvm.polyglot.Source
+import org.junit.jupiter.api.Assumptions
+import org.junit.jupiter.api.DynamicTest
+import org.junit.jupiter.api.TestFactory
+import jakarta.inject.Inject
+import kotlinx.coroutines.test.runTest
+import kotlin.test.assertFalse
+import kotlin.test.assertNotNull
+import kotlin.use
+import elide.runtime.core.DelicateElideApi
+import elide.runtime.core.PolyglotEngine
+import elide.runtime.core.PolyglotEngineConfiguration.HostAccess.ALLOW_ALL
+import elide.runtime.gvm.GraalVMGuest
+import elide.runtime.gvm.internals.IntrinsicsManager
+import elide.runtime.gvm.internals.intrinsics.js.AbstractJsIntrinsic
+import elide.runtime.gvm.js.AbstractJsTest
+import elide.runtime.intrinsics.GuestIntrinsic.MutableIntrinsicBindings
+import elide.runtime.intrinsics.Symbol
+import elide.runtime.plugins.js.JavaScript
+import elide.runtime.plugins.vfs.vfs
+import elide.runtime.plugins.wasm.Wasm
+import elide.testing.annotations.TestCase
+
+private const val ENABLE_POLYFILLS = true
+private const val ENABLE_SUPPRESSIONS = true
+
+@TestCase internal class CommonMinimumTest : AbstractJsTest() {
+  private val polyfillsContent = requireNotNull(javaClass.getResource(
+    "/META-INF/elide/embedded/runtime/js/polyfills.js"
+  )) {
+    "Failed to locate JS polyfills"
+  }.readText()
+
+  private val polyfillsSrc = Source.create("js", polyfillsContent)
+
+  @Inject private lateinit var intrinsics: IntrinsicsManager
+
+  // Symbols which are expected to be missing.
+  private val expectMissingGlobals = sortedSetOf<String>()
+
+  // Symbols which can be missing.
+  private val allowMissingGlobals = sortedSetOf<String>(
+    "CompressionStream",
+    "Crypto",
+    "CryptoKey",
+    "DOMException",
+    "DecompressionStream",
+    "Event",
+    "FormData",
+    "SubtleCrypto",
+    "TextDecoderStream",
+    "TextEncoderStream",
+    "URLPattern",
+    "WebAssembly.Global",
+    "WebAssembly.Instance",
+    "WebAssembly.Memory",
+    "WebAssembly.Module",
+    "WebAssembly.Table",
+    "WebAssembly.compile",
+    "WebAssembly.compileStreaming",
+    "WebAssembly.instantiate",
+    "WebAssembly.instantiateStreaming",
+    "WebAssembly.validate",
+    "navigator.userAgent",
+    "queueMicrotask",
+    "structuredClone",
+  )
+
+  // Minimum Common API §3.1: Interfaces.
+  // See: https://min-common-api.proposal.wintertc.org/#api-index
+  private val minimumCommonInterfaces = sortedSetOf(
+    "AbortController",
+    "AbortSignal",
+    "Blob",
+    "ByteLengthQueuingStrategy",
+    "CompressionStream",
+    "CountQueuingStrategy",
+    "Crypto",
+    "CryptoKey",
+    "DecompressionStream",
+    "DOMException",
+    "Event",
+    "EventTarget",
+    "File",
+    "FormData",
+    "Headers",
+    "ReadableByteStreamController",
+    "ReadableStream",
+    "ReadableStreamBYOBReader",
+    "ReadableStreamBYOBRequest",
+    "ReadableStreamDefaultController",
+    "ReadableStreamDefaultReader",
+    "Request",
+    "Response",
+    "SubtleCrypto",
+    "TextDecoder",
+    "TextDecoderStream",
+    "TextEncoder",
+    "TextEncoderStream",
+    "TransformStream",
+    "TransformStreamDefaultController",
+    "URL",
+    "URLPattern",
+    "URLSearchParams",
+    "WebAssembly.Global",
+    "WebAssembly.Instance",
+    "WebAssembly.Memory",
+    "WebAssembly.Module",
+    "WebAssembly.Table",
+    "WritableStream",
+    "WritableStreamDefaultController",
+    "WritableStreamDefaultWriter"
+  )
+
+  // Minimum Common API §3.2: Global methods / properties.
+  // See: https://min-common-api.proposal.wintertc.org/#api-index
+  private val commonMinimumMethodsAndProperties = sortedSetOf(
+    "globalThis",
+    "atob",
+    "btoa",
+    "clearInterval",
+    "clearTimeout",
+    "console",
+    "crypto",
+    "fetch",
+    "navigator.userAgent",
+    "performance.now",
+    "performance.timeOrigin",
+    "queueMicrotask",
+    "setInterval",
+    "setTimeout",
+    "structuredClone",
+    "WebAssembly.compile",
+    "WebAssembly.compileStreaming",
+    "WebAssembly.instantiate",
+    "WebAssembly.instantiateStreaming",
+    "WebAssembly.validate",
+  )
+
+  @DelicateElideApi
+  private fun withFreshContext(block: suspend Context.() -> Unit): Unit = PolyglotEngine {
+    hostAccess = ALLOW_ALL
+
+    vfs {
+      useHost = true
+    }
+
+    install(Wasm)
+    install(JavaScript) {
+      npm {
+        enabled = true
+        modulesPath = System.getenv("PWD")
+        wasm = true
+      }
+    }
+  }.let { engine ->
+    engine.acquire {
+      build().use {
+        runTest {
+          block.invoke(it)
+        }
+      }
+    }
+    Unit
+  }
+
+  @DelicateElideApi
+  private fun executeGuest(
+    stdEngine: Boolean = true,
+    block: () -> String,
+  ) {
+    if (stdEngine) this.executeGuest(bind = true) {
+      StringBuilder().apply {
+        if (ENABLE_POLYFILLS) appendLine(polyfillsContent)
+        append(block())
+      }.toString()
+    }.let {
+      it.doesNotFail()
+      it.returnValue().let { symbolValue ->
+        assertNotNull(symbolValue, "should get value from guest execution")
+        assertFalse(symbolValue.isNull, "guest value should not be `null`")
+        assertFalse(symbolValue.isBoolean && !symbolValue.asBoolean(), "value should not be `false`")
+      }
+    } else withFreshContext {
+      if (ENABLE_POLYFILLS) eval(polyfillsSrc)
+      eval(Source.create("js", block.invoke())).let { value ->
+        assertNotNull(value, "should get value from guest execution")
+        assertFalse(value.isNull, "value should not be `null`")
+        assertFalse(value.isBoolean && !value.asBoolean(), "value should not be `false`")
+      }
+    }
+  }
+
+  @OptIn(DelicateElideApi::class)
+  suspend fun SequenceScope<DynamicTest>.testFactory(globalName: String) {
+    if (globalName !in expectMissingGlobals) yield(
+      DynamicTest.dynamicTest(globalName) {
+        if (ENABLE_SUPPRESSIONS && globalName in allowMissingGlobals) {
+          Assumptions.abort<Unit>("Common Minimum API '$globalName' is known-missing")
+        }
+        executeGuest {
+          // language=JavaScript
+          """
+             function pluck() {
+               return $globalName;
+             }
+             pluck();
+          """
+        }
+      }
+    )
+  }
+
+  @DelicateElideApi
+  @TestFactory fun `minimum common api - interfaces`(): List<DynamicTest> = sequence<DynamicTest> {
+    val symbols = intrinsics.resolver().resolve(GraalVMGuest.JAVASCRIPT, internals = true).toList()
+    val mapped = mutableMapOf<Symbol, Any>()
+    val bindings = MutableIntrinsicBindings.Factory.wrap(mapped)
+    symbols.map { it as AbstractJsIntrinsic }.map {
+      it.install(bindings)
+    }
+    minimumCommonInterfaces.forEach { globalName ->
+      testFactory(globalName)
+    }
+  }.toList()
+
+  @DelicateElideApi
+  @TestFactory fun `minimum common api - globals`(): List<DynamicTest> = sequence<DynamicTest> {
+    val symbols = intrinsics.resolver().resolve(GraalVMGuest.JAVASCRIPT, internals = true).toList()
+    val mapped = mutableMapOf<Symbol, Any>()
+    val bindings = MutableIntrinsicBindings.Factory.wrap(mapped)
+    symbols.map { it as AbstractJsIntrinsic }.map {
+      it.install(bindings)
+    }
+    commonMinimumMethodsAndProperties.forEach { globalName ->
+      testFactory(globalName)
+    }
+  }.toList()
+}