diff --git a/src/__phutil_library_map__.php b/src/__phutil_library_map__.php
--- a/src/__phutil_library_map__.php
+++ b/src/__phutil_library_map__.php
@@ -924,6 +924,7 @@
     'phutil_http_parameter_pair' => 'utils/utils.php',
     'phutil_ini_decode' => 'utils/utils.php',
     'phutil_is_hiphop_runtime' => 'utils/utils.php',
+    'phutil_is_interactive' => 'utils/utils.php',
     'phutil_is_natural_list' => 'utils/utils.php',
     'phutil_is_noninteractive' => 'utils/utils.php',
     'phutil_is_system_locale_available' => 'utils/utf8.php',
@@ -1052,7 +1053,7 @@
     'ArcanistCSSLintLinter' => 'ArcanistExternalLinter',
     'ArcanistCSSLintLinterTestCase' => 'ArcanistExternalLinterTestCase',
     'ArcanistCSharpLinter' => 'ArcanistLinter',
-    'ArcanistCallConduitWorkflow' => 'ArcanistWorkflow',
+    'ArcanistCallConduitWorkflow' => 'ArcanistArcWorkflow',
     'ArcanistCallParenthesesXHPASTLinterRule' => 'ArcanistXHPASTLinterRule',
     'ArcanistCallParenthesesXHPASTLinterRuleTestCase' => 'ArcanistXHPASTLinterRuleTestCase',
     'ArcanistCallTimePassByReferenceXHPASTLinterRule' => 'ArcanistXHPASTLinterRule',
diff --git a/src/utils/utils.php b/src/utils/utils.php
--- a/src/utils/utils.php
+++ b/src/utils/utils.php
@@ -1927,6 +1927,14 @@
   return false;
 }
 
+function phutil_is_interactive() {
+  if (function_exists('posix_isatty') && posix_isatty(STDIN)) {
+    return true;
+  }
+
+  return false;
+}
+
 function phutil_encode_log($message) {
   return addcslashes($message, "\0..\37\\\177..\377");
 }
diff --git a/src/workflow/ArcanistCallConduitWorkflow.php b/src/workflow/ArcanistCallConduitWorkflow.php
--- a/src/workflow/ArcanistCallConduitWorkflow.php
+++ b/src/workflow/ArcanistCallConduitWorkflow.php
@@ -1,71 +1,55 @@
 <?php
 
-/**
- * Provides command-line access to the Conduit API.
- */
-final class ArcanistCallConduitWorkflow extends ArcanistWorkflow {
+final class ArcanistCallConduitWorkflow
+  extends ArcanistArcWorkflow {
 
   public function getWorkflowName() {
     return 'call-conduit';
   }
 
-  public function getCommandSynopses() {
-    return phutil_console_format(<<<EOTEXT
-      **call-conduit** __method__
-EOTEXT
-      );
-  }
-
-  public function getCommandHelp() {
-    return phutil_console_format(<<<EOTEXT
-          Supports: http, https
-          Allows you to make a raw Conduit method call:
+  public function getWorkflowInformation() {
+    $help = pht(<<<EOTEXT
+Allows you to make a raw Conduit method call:
 
-            - Run this command from a working directory.
-            - Call parameters are REQUIRED and read as a JSON blob from stdin.
-            - Results are written to stdout as a JSON blob.
+  - Run this command from a working directory.
+  - Call parameters are required, and read as a JSON blob from stdin.
+  - Results are written to stdout as a JSON blob.
 
-          This workflow is primarily useful for writing scripts which integrate
-          with Phabricator. Examples:
+This workflow is primarily useful for writing scripts which integrate
+with Phabricator. Examples:
 
-            $ echo '{}' | arc call-conduit conduit.ping
-            $ echo '{"phid":"PHID-FILE-xxxx"}' | arc call-conduit file.download
+  $ echo '{}' | arc call-conduit -- conduit.ping
+  $ echo '{"phid":"PHID-FILE-xxxx"}' | arc call-conduit -- file.download
 EOTEXT
       );
+
+    return $this->newWorkflowInformation()
+      ->setSynopsis(pht('Call Conduit API methods.'))
+      ->addExample('**call-conduit** -- __method__')
+      ->setHelp($help);
   }
 
-  public function getArguments() {
+  public function getWorkflowArguments() {
     return array(
-      '*' => 'method',
+      $this->newWorkflowArgument('method')
+        ->setWildcard(true),
     );
   }
 
-  protected function shouldShellComplete() {
-    return false;
-  }
-
-  public function requiresConduit() {
-    return true;
-  }
-
-  public function requiresAuthentication() {
-    return true;
-  }
-
-  public function run() {
-    $method = $this->getArgument('method', array());
+  public function runWorkflow() {
+    $method = $this->getArgument('method');
     if (count($method) !== 1) {
-      throw new ArcanistUsageException(
-        pht('Provide exactly one Conduit method name.'));
+      throw new PhutilArgumentUsageException(
+        pht('Provide exactly one Conduit method name to call.'));
     }
-    $method = reset($method);
+    $method = head($method);
 
-    $console = PhutilConsole::getConsole();
-    if (!function_exists('posix_isatty') || posix_isatty(STDIN)) {
-      $console->writeErr(
+    if (phutil_is_interactive()) {
+      echo tsprintf(
         "%s\n",
         pht('Waiting for JSON parameters on stdin...'));
     }
+
     $params = @file_get_contents('php://stdin');
     try {
       $params = phutil_json_decode($params);
@@ -74,23 +58,26 @@
         pht('Provide method parameters on stdin as a JSON blob.'));
     }
 
+    $engine = $this->getConduitEngine();
+    $conduit_call = $engine->newCall($method, $params);
+    $conduit_future = $engine->newFuture($conduit_call);
+
     $error = null;
     $error_message = null;
     try {
-      $result = $this->getConduit()->callMethodSynchronous(
-        $method,
-        $params);
+      $result = $conduit_future->resolve();
     } catch (ConduitClientException $ex) {
       $error = $ex->getErrorCode();
       $error_message = $ex->getMessage();
       $result = null;
     }
 
-    echo json_encode(array(
-      'error'         => $error,
-      'errorMessage'  => $error_message,
-      'response'      => $result,
-    ))."\n";
+    echo id(new PhutilJSON())->encodeFormatted(
+      array(
+        'error' => $error,
+        'errorMessage' => $error_message,
+        'response' => $result,
+      ));
 
     return 0;
   }