diff --git a/scripts/celerity/generate_sprites.php b/scripts/celerity/generate_sprites.php
--- a/scripts/celerity/generate_sprites.php
+++ b/scripts/celerity/generate_sprites.php
@@ -3,80 +3,6 @@
 
 require_once dirname(dirname(__FILE__)).'/__init_script__.php';
 
-$args = new PhutilArgumentParser($argv);
-$args->setTagline(pht('regenerate CSS sprite sheets'));
-$args->setSynopsis(<<<EOHELP
-**sprites**
-    Rebuild CSS sprite sheets.
-
-EOHELP
-);
-$args->parseStandardArguments();
-$args->parse(
-  array(
-    array(
-      'name'  => 'force',
-      'help'  => pht('Force regeneration even if sources have not changed.'),
-    ),
-  ));
-
-$root = dirname(phutil_get_library_root('phabricator'));
-$webroot = $root.'/webroot/rsrc';
-$webroot = Filesystem::readablePath($webroot);
-
-$generator = new CeleritySpriteGenerator();
-
-$sheets = array(
-  'tokens' => $generator->buildTokenSheet(),
-  'login' => $generator->buildLoginSheet(),
-);
-
-list($err) = exec_manual('optipng');
-if ($err) {
-  $have_optipng = false;
-  echo phutil_console_format(
-    "<bg:red> %s </bg> %s\n%s\n",
-    pht('WARNING'),
-    pht('`%s` not found in PATH.', 'optipng'),
-    pht('Sprites will not be optimized! Install `%s`!', 'optipng'));
-} else {
-  $have_optipng = true;
-}
-
-foreach ($sheets as $name => $sheet) {
-
-  $sheet->setBasePath($root);
-
-  $manifest_path = $root.'/resources/sprite/manifest/'.$name.'.json';
-  if (!$args->getArg('force')) {
-    if (Filesystem::pathExists($manifest_path)) {
-      $data = Filesystem::readFile($manifest_path);
-      $data = phutil_json_decode($data);
-      if (!$sheet->needsRegeneration($data)) {
-        continue;
-      }
-    }
-  }
-
-  $sheet
-    ->generateCSS($webroot."/css/sprite-{$name}.css")
-    ->generateManifest($root."/resources/sprite/manifest/{$name}.json");
-
-  foreach ($sheet->getScales() as $scale) {
-    if ($scale == 1) {
-      $sheet_name = "sprite-{$name}.png";
-    } else {
-      $sheet_name = "sprite-{$name}-X{$scale}.png";
-    }
-
-    $full_path = "{$webroot}/image/{$sheet_name}";
-    $sheet->generateImage($full_path, $scale);
-
-    if ($have_optipng) {
-      echo pht('Optimizing...')."\n";
-      phutil_passthru('optipng -o7 -clobber %s', $full_path);
-    }
-  }
-}
-
-echo pht('Done.')."\n";
+echo pht('This script was replaced with `%s`!.', './bin/celerity sprites');
+echo "\n";
+exit(13);
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
@@ -318,6 +318,7 @@
     'CelerityDefaultPostprocessor' => 'applications/celerity/postprocessor/CelerityDefaultPostprocessor.php',
     'CelerityHighContrastPostprocessor' => 'applications/celerity/postprocessor/CelerityHighContrastPostprocessor.php',
     'CelerityLargeFontPostprocessor' => 'applications/celerity/postprocessor/CelerityLargeFontPostprocessor.php',
+    'CelerityManagementGenerateSpritesWorkflow' => 'applications/celerity/management/CelerityManagementGenerateSpritesWorkflow.php',
     'CelerityManagementMapWorkflow' => 'applications/celerity/management/CelerityManagementMapWorkflow.php',
     'CelerityManagementSyntaxWorkflow' => 'applications/celerity/management/CelerityManagementSyntaxWorkflow.php',
     'CelerityManagementWorkflow' => 'applications/celerity/management/CelerityManagementWorkflow.php',
@@ -6311,6 +6312,7 @@
     'CelerityDefaultPostprocessor' => 'CelerityPostprocessor',
     'CelerityHighContrastPostprocessor' => 'CelerityPostprocessor',
     'CelerityLargeFontPostprocessor' => 'CelerityPostprocessor',
+    'CelerityManagementGenerateSpritesWorkflow' => 'CelerityManagementWorkflow',
     'CelerityManagementMapWorkflow' => 'CelerityManagementWorkflow',
     'CelerityManagementSyntaxWorkflow' => 'CelerityManagementWorkflow',
     'CelerityManagementWorkflow' => 'PhabricatorManagementWorkflow',
diff --git a/src/applications/celerity/management/CelerityManagementGenerateSpritesWorkflow.php b/src/applications/celerity/management/CelerityManagementGenerateSpritesWorkflow.php
new file mode 100644
--- /dev/null
+++ b/src/applications/celerity/management/CelerityManagementGenerateSpritesWorkflow.php
@@ -0,0 +1,108 @@
+<?php
+
+final class CelerityManagementGenerateSpritesWorkflow
+  extends CelerityManagementWorkflow {
+
+    protected function didConstruct() {
+      $this
+        ->setName('sprites')
+        ->setExamples('**sprites** [options]')
+        ->setSynopsis(pht('Rebuild CSS sprite sheets.'))
+        ->setArguments(
+          array(
+            array(
+              'name' => 'force',
+              'help' => pht('Force regeneration even no sources have changed.'),
+            ),
+            array(
+              'name' => 'no-map',
+              'help' =>
+                pht(
+                  'Do not invoke `%s` after updating sprites',
+                  'celerity map'),
+            ),
+          ));
+    }
+
+    public function execute(PhutilArgumentParser $args) {
+      $resources_map = CelerityPhysicalResources::getAll();
+
+      $console = PhutilConsole::getConsole();
+
+      $root = dirname(phutil_get_library_root('phorge'));
+      $webroot = $root.'/webroot/rsrc';
+      $webroot = Filesystem::readablePath($webroot);
+
+      $generator = new CeleritySpriteGenerator();
+
+      $sheets = array(
+        'tokens' => $generator->buildTokenSheet(),
+        'login' => $generator->buildLoginSheet(),
+      );
+
+      list($err) = exec_manual('optipng');
+      if ($err) {
+        $have_optipng = false;
+        $console->writeErr(
+          "<bg:red> %s </bg> %s\n%s\n",
+          pht('WARNING'),
+          pht('`%s` not found in PATH.', 'optipng'),
+          pht('Sprites will not be optimized! Install `%s`!', 'optipng'));
+      } else {
+        $have_optipng = true;
+      }
+
+      foreach ($sheets as $name => $sheet) {
+
+        $sheet->setBasePath($root);
+
+        $manifest_path = $root.'/resources/sprite/manifest/'.$name.'.json';
+        if (!$args->getArg('force')) {
+          if (Filesystem::pathExists($manifest_path)) {
+            $data = Filesystem::readFile($manifest_path);
+            $data = phutil_json_decode($data);
+            if (!$sheet->needsRegeneration($data)) {
+              continue;
+            }
+          }
+        }
+
+        $sheet
+          ->generateCSS($webroot."/css/sprite-{$name}.css")
+          ->generateManifest($root."/resources/sprite/manifest/{$name}.json");
+
+        foreach ($sheet->getScales() as $scale) {
+          if ($scale == 1) {
+            $sheet_name = "sprite-{$name}.png";
+          } else {
+            $sheet_name = "sprite-{$name}-X{$scale}.png";
+          }
+
+          $full_path = "{$webroot}/image/{$sheet_name}";
+          $sheet->generateImage($full_path, $scale);
+
+          if ($have_optipng) {
+            $console->writeOut("%s\n", pht('Optimizing...'));
+            phutil_passthru('optipng -o7 -clobber %s', $full_path);
+          }
+        }
+      }
+
+      $run_map = !$args->getArg('no-map');
+
+      if ($run_map) {
+        $console->writeOut(
+          "%s\n",
+           pht('Done generating sprites - updating map...'));
+        $map_flow = id($args->getWorkflows())['map'];
+        // this is very hacky, but it works because `map` has no arguments.
+        $map_flow->execute($args);
+      } else {
+        $console->writeOut("%s\n", pht('Done.'));
+        return 0;
+      }
+
+    }
+
+
+}