diff --git a/src/Client.php b/src/Client.php
index 27f55b0e..6d62259b 100644
--- a/src/Client.php
+++ b/src/Client.php
@@ -232,9 +232,9 @@ public function describeServiceCatalogCall(string $callId): array
     {
         $response = $this->serviceCatalogRead('/service-catalog/calls', id: $callId);
         if (($response['payloads_in_observer_namespace'] ?? null) === true) {
-            $response['output_available'] = is_array($response['output_envelope'] ?? null);
+            $response['output_available'] = is_array($response['result_envelope'] ?? null);
             $response['output'] = $response['output_available']
-                ? $this->decodedResponsePayload($response, 'output')
+                ? $this->decodedResponsePayload($response, 'result')
                 : null;
         }
 
diff --git a/src/Transport/RuntimePayloads.php b/src/Transport/RuntimePayloads.php
index 249e6b31..6778acb3 100644
--- a/src/Transport/RuntimePayloads.php
+++ b/src/Transport/RuntimePayloads.php
@@ -40,14 +40,19 @@ public function response(array $response, string $requestPath, bool $worker): ar
             $paths = [...$paths, ...$this->historyPaths(['task', 'history_events']), ...$this->historyPaths(['history_events']),
                 ...$this->exportPaths(['task', 'history_export'])];
         } else {
-            if (preg_match('~\A/service-catalog/calls/[^/]+\z~', $path)
-                && ($response['payloads_in_observer_namespace'] ?? null) === true
+            $catalogCall = preg_match('~\A/service-catalog/calls/[^/]+\z~', $path) === 1;
+            $catalogOutputAllowed = ($response['payloads_in_observer_namespace'] ?? null) === true;
+            if ($catalogCall && $catalogOutputAllowed
+                && !is_array($response['result_envelope'] ?? null)
                 && is_array($response['output_payload_reference'] ?? null)) {
                 // Keep the opaque reference while hydrating only the authorized
                 // terminal output of this exact call, never arbitrary metadata.
-                $response['output_envelope'] = ['codec' => 'avro', 'external_payload' => $response['output_payload_reference']];
+                $response['result_envelope'] = ['codec' => 'avro', 'external_payload' => $response['output_payload_reference']];
             }
             foreach (['input_envelope', 'output_envelope', 'result_envelope'] as $field) {
+                if ($catalogCall && !$catalogOutputAllowed) {
+                    continue;
+                }
                 $paths[] = [$field];
             }
             if (preg_match('~\A/activities/[^/]+\z~', $path)) {
diff --git a/tests/ServiceCatalogReadClientTest.php b/tests/ServiceCatalogReadClientTest.php
index f2242e6c..0c7e4c66 100644
--- a/tests/ServiceCatalogReadClientTest.php
+++ b/tests/ServiceCatalogReadClientTest.php
@@ -159,6 +159,21 @@ public static function outputs(): array
         return [[null], [false], [0], [''], [['result', ['nested' => 'value']]]];
     }
 
+    #[DataProvider('outputs')]
+    public function testCommittedInlineResultEnvelopeIsDecoded(mixed $value): void
+    {
+        $codec = new AvroPayloadCodec();
+        $envelope = $codec->envelope($value);
+        $transport = new FakeTransport([$this->discovery(), [
+            'payloads_in_observer_namespace' => true, 'output_payload_reference' => null,
+            'result_envelope' => $envelope,
+        ]]);
+        $result = (new Client('https://runtime.test', transport: $transport))->describeServiceCatalogCall('call-1');
+        self::assertTrue($result['output_available']);
+        self::assertSame($codec->encode($value), $codec->encode($result['output']));
+        self::assertCount(2, $transport->requests);
+    }
+
     public function testExternalOutputUsesOnlyTheConfiguredRuntimeNamespaceAndOperatorCredential(): void
     {
         $codec = new AvroPayloadCodec();
@@ -177,6 +192,7 @@ public function testExternalOutputUsesOnlyTheConfiguredRuntimeNamespaceAndOperat
             if (count($requests) === 2) {
                 return Create::promiseFor(new Response(200, [], json_encode([
                     'id' => 'call-1', 'payloads_in_observer_namespace' => true, 'output_payload_reference' => $envelope,
+                    'result_envelope' => ['codec' => 'avro', 'external_payload' => $envelope],
                 ], JSON_THROW_ON_ERROR)));
             }
 
@@ -206,6 +222,7 @@ public function testForeignOrUnverifiedOutputsAreNotFetchedAndOwnedDownloadsHono
             $transport = new FakeTransport([$this->discovery(), [
                 'payloads_in_observer_namespace' => $authorized,
                 'output_payload_reference' => $reference,
+                'result_envelope' => ['codec' => 'avro', 'external_payload' => $reference],
             ]]);
             $client = new Client('https://runtime.test', transport: $transport, maxExternalPayloadBytes: 1);
             try {