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
@@ -213,6 +213,7 @@
     'ArcanistGitRevisionHardpointLoader' => 'loader/ArcanistGitRevisionHardpointLoader.php',
     'ArcanistGitUpstreamPath' => 'repository/api/ArcanistGitUpstreamPath.php',
     'ArcanistGitWorkingCopy' => 'workingcopy/ArcanistGitWorkingCopy.php',
+    'ArcanistGitWorkingCopyRevisionHardpointQuery' => 'query/ArcanistGitWorkingCopyRevisionHardpointQuery.php',
     'ArcanistGlobalVariableXHPASTLinterRule' => 'lint/linter/xhpast/rules/ArcanistGlobalVariableXHPASTLinterRule.php',
     'ArcanistGlobalVariableXHPASTLinterRuleTestCase' => 'lint/linter/xhpast/rules/__tests__/ArcanistGlobalVariableXHPASTLinterRuleTestCase.php',
     'ArcanistGoLintLinter' => 'lint/linter/ArcanistGoLintLinter.php',
@@ -320,6 +321,7 @@
     'ArcanistMergeConflictLinter' => 'lint/linter/ArcanistMergeConflictLinter.php',
     'ArcanistMergeConflictLinterTestCase' => 'lint/linter/__tests__/ArcanistMergeConflictLinterTestCase.php',
     'ArcanistMessageRevisionHardpointLoader' => 'loader/ArcanistMessageRevisionHardpointLoader.php',
+    'ArcanistMessageRevisionHardpointQuery' => 'query/ArcanistMessageRevisionHardpointQuery.php',
     'ArcanistMissingArgumentTerminatorException' => 'exception/ArcanistMissingArgumentTerminatorException.php',
     'ArcanistMissingLinterException' => 'lint/linter/exception/ArcanistMissingLinterException.php',
     'ArcanistModifierOrderingXHPASTLinterRule' => 'lint/linter/xhpast/rules/ArcanistModifierOrderingXHPASTLinterRule.php',
@@ -340,6 +342,7 @@
     'ArcanistNoParentScopeXHPASTLinterRuleTestCase' => 'lint/linter/xhpast/rules/__tests__/ArcanistNoParentScopeXHPASTLinterRuleTestCase.php',
     'ArcanistNoURIConduitException' => 'conduit/ArcanistNoURIConduitException.php',
     'ArcanistNoneLintRenderer' => 'lint/renderer/ArcanistNoneLintRenderer.php',
+    'ArcanistObjectListHardpoint' => 'hardpoint/ArcanistObjectListHardpoint.php',
     'ArcanistObjectOperatorSpacingXHPASTLinterRule' => 'lint/linter/xhpast/rules/ArcanistObjectOperatorSpacingXHPASTLinterRule.php',
     'ArcanistObjectOperatorSpacingXHPASTLinterRuleTestCase' => 'lint/linter/xhpast/rules/__tests__/ArcanistObjectOperatorSpacingXHPASTLinterRuleTestCase.php',
     'ArcanistPEP8Linter' => 'lint/linter/ArcanistPEP8Linter.php',
@@ -403,6 +406,7 @@
     'ArcanistReusedIteratorXHPASTLinterRuleTestCase' => 'lint/linter/xhpast/rules/__tests__/ArcanistReusedIteratorXHPASTLinterRuleTestCase.php',
     'ArcanistRevertWorkflow' => 'workflow/ArcanistRevertWorkflow.php',
     'ArcanistRevisionRef' => 'ref/ArcanistRevisionRef.php',
+    'ArcanistRevisionRefPro' => 'ref/ArcanistRevisionRefPro.php',
     'ArcanistRevisionRefSource' => 'ref/ArcanistRevisionRefSource.php',
     'ArcanistRuboCopLinter' => 'lint/linter/ArcanistRuboCopLinter.php',
     'ArcanistRuboCopLinterTestCase' => 'lint/linter/__tests__/ArcanistRuboCopLinterTestCase.php',
@@ -498,6 +502,7 @@
     'ArcanistWildConfigOption' => 'config/option/ArcanistWildConfigOption.php',
     'ArcanistWorkflow' => 'workflow/ArcanistWorkflow.php',
     'ArcanistWorkflowArgument' => 'toolset/ArcanistWorkflowArgument.php',
+    'ArcanistWorkflowGitHardpointQuery' => 'query/ArcanistWorkflowGitHardpointQuery.php',
     'ArcanistWorkflowHardpointQuery' => 'toolset/query/ArcanistWorkflowHardpointQuery.php',
     'ArcanistWorkflowInformation' => 'toolset/ArcanistWorkflowInformation.php',
     'ArcanistWorkingCopy' => 'workingcopy/ArcanistWorkingCopy.php',
@@ -506,6 +511,7 @@
     'ArcanistWorkingCopyIdentity' => 'workingcopyidentity/ArcanistWorkingCopyIdentity.php',
     'ArcanistWorkingCopyPath' => 'workingcopy/ArcanistWorkingCopyPath.php',
     'ArcanistWorkingCopyStateRef' => 'ref/ArcanistWorkingCopyStateRef.php',
+    'ArcanistWorkingCopyStateRefInspector' => 'inspector/ArcanistWorkingCopyStateRefInspector.php',
     'ArcanistWorkingCopyStateRefPro' => 'ref/ArcanistWorkingCopyStateRefPro.php',
     'ArcanistXHPASTLintNamingHook' => 'lint/linter/xhpast/ArcanistXHPASTLintNamingHook.php',
     'ArcanistXHPASTLintNamingHookTestCase' => 'lint/linter/xhpast/__tests__/ArcanistXHPASTLintNamingHookTestCase.php',
@@ -1175,12 +1181,13 @@
     'ArcanistGetConfigWorkflow' => 'ArcanistWorkflow',
     'ArcanistGitAPI' => 'ArcanistRepositoryAPI',
     'ArcanistGitCommitMessageHardpointLoader' => 'ArcanistGitHardpointLoader',
-    'ArcanistGitCommitMessageHardpointQuery' => 'ArcanistWorkflowHardpointQuery',
+    'ArcanistGitCommitMessageHardpointQuery' => 'ArcanistWorkflowGitHardpointQuery',
     'ArcanistGitHardpointLoader' => 'ArcanistHardpointLoader',
     'ArcanistGitLandEngine' => 'ArcanistLandEngine',
     'ArcanistGitRevisionHardpointLoader' => 'ArcanistGitHardpointLoader',
     'ArcanistGitUpstreamPath' => 'Phobject',
     'ArcanistGitWorkingCopy' => 'ArcanistWorkingCopy',
+    'ArcanistGitWorkingCopyRevisionHardpointQuery' => 'ArcanistWorkflowGitHardpointQuery',
     'ArcanistGlobalVariableXHPASTLinterRule' => 'ArcanistXHPASTLinterRule',
     'ArcanistGlobalVariableXHPASTLinterRuleTestCase' => 'ArcanistXHPASTLinterRuleTestCase',
     'ArcanistGoLintLinter' => 'ArcanistExternalLinter',
@@ -1288,6 +1295,7 @@
     'ArcanistMergeConflictLinter' => 'ArcanistLinter',
     'ArcanistMergeConflictLinterTestCase' => 'ArcanistLinterTestCase',
     'ArcanistMessageRevisionHardpointLoader' => 'ArcanistHardpointLoader',
+    'ArcanistMessageRevisionHardpointQuery' => 'ArcanistWorkflowHardpointQuery',
     'ArcanistMissingArgumentTerminatorException' => 'Exception',
     'ArcanistMissingLinterException' => 'Exception',
     'ArcanistModifierOrderingXHPASTLinterRule' => 'ArcanistXHPASTLinterRule',
@@ -1308,6 +1316,7 @@
     'ArcanistNoParentScopeXHPASTLinterRuleTestCase' => 'ArcanistXHPASTLinterRuleTestCase',
     'ArcanistNoURIConduitException' => 'ArcanistConduitException',
     'ArcanistNoneLintRenderer' => 'ArcanistLintRenderer',
+    'ArcanistObjectListHardpoint' => 'ArcanistHardpoint',
     'ArcanistObjectOperatorSpacingXHPASTLinterRule' => 'ArcanistXHPASTLinterRule',
     'ArcanistObjectOperatorSpacingXHPASTLinterRuleTestCase' => 'ArcanistXHPASTLinterRuleTestCase',
     'ArcanistPEP8Linter' => 'ArcanistExternalLinter',
@@ -1371,6 +1380,7 @@
     'ArcanistReusedIteratorXHPASTLinterRuleTestCase' => 'ArcanistXHPASTLinterRuleTestCase',
     'ArcanistRevertWorkflow' => 'ArcanistWorkflow',
     'ArcanistRevisionRef' => 'ArcanistRef',
+    'ArcanistRevisionRefPro' => 'ArcanistRefPro',
     'ArcanistRevisionRefSource' => 'Phobject',
     'ArcanistRuboCopLinter' => 'ArcanistExternalLinter',
     'ArcanistRuboCopLinterTestCase' => 'ArcanistExternalLinterTestCase',
@@ -1465,6 +1475,7 @@
     'ArcanistWildConfigOption' => 'ArcanistConfigOption',
     'ArcanistWorkflow' => 'Phobject',
     'ArcanistWorkflowArgument' => 'Phobject',
+    'ArcanistWorkflowGitHardpointQuery' => 'ArcanistWorkflowHardpointQuery',
     'ArcanistWorkflowHardpointQuery' => 'ArcanistHardpointQuery',
     'ArcanistWorkflowInformation' => 'Phobject',
     'ArcanistWorkingCopy' => 'Phobject',
@@ -1473,6 +1484,7 @@
     'ArcanistWorkingCopyIdentity' => 'Phobject',
     'ArcanistWorkingCopyPath' => 'Phobject',
     'ArcanistWorkingCopyStateRef' => 'ArcanistRef',
+    'ArcanistWorkingCopyStateRefInspector' => 'ArcanistRefInspector',
     'ArcanistWorkingCopyStateRefPro' => 'ArcanistRefPro',
     'ArcanistXHPASTLintNamingHook' => 'Phobject',
     'ArcanistXHPASTLintNamingHookTestCase' => 'PhutilTestCase',
diff --git a/src/hardpoint/ArcanistHardpointObject.php b/src/hardpoint/ArcanistHardpointObject.php
--- a/src/hardpoint/ArcanistHardpointObject.php
+++ b/src/hardpoint/ArcanistHardpointObject.php
@@ -64,6 +64,14 @@
       ->setHardpointKey($hardpoint_key);
   }
 
+  final protected function newTemplateHardpoint(
+    $hardpoint_key,
+    ArcanistHardpoint $template) {
+
+    return id(clone $template)
+      ->setHardpointKey($hardpoint_key);
+  }
+
 
   final public function getHardpointList() {
     if ($this->hardpointList === null) {
diff --git a/src/hardpoint/ArcanistObjectListHardpoint.php b/src/hardpoint/ArcanistObjectListHardpoint.php
new file mode 100644
--- /dev/null
+++ b/src/hardpoint/ArcanistObjectListHardpoint.php
@@ -0,0 +1,25 @@
+<?php
+
+final class ArcanistObjectListHardpoint
+  extends ArcanistHardpoint {
+
+  public function isVectorHardpoint() {
+    return true;
+  }
+
+  public function mergeHardpointValues(
+    ArcanistHardpointObject $object,
+    $old,
+    $new) {
+
+    foreach ($new as $item) {
+      $phid = $item->getPHID();
+      if (!isset($old[$phid])) {
+        $old[$phid] = $item;
+      }
+    }
+
+    return $old;
+  }
+
+}
diff --git a/src/inspector/ArcanistWorkingCopyStateRefInspector.php b/src/inspector/ArcanistWorkingCopyStateRefInspector.php
new file mode 100644
--- /dev/null
+++ b/src/inspector/ArcanistWorkingCopyStateRefInspector.php
@@ -0,0 +1,26 @@
+<?php
+
+final class ArcanistWorkingCopyStateRefInspector
+  extends ArcanistRefInspector {
+
+  public function getInspectFunctionName() {
+    return 'working-copy';
+  }
+
+  public function newInspectRef(array $argv) {
+    if (count($argv) !== 1) {
+      throw new PhutilArgumentUsageException(
+        pht(
+          'Expected exactly one argument to "working-copy(...)" with a '.
+          'commit hash.'));
+    }
+
+    $commit_hash = $argv[0];
+    $commit_ref = id(new ArcanistCommitRefPro())
+      ->setCommitHash($commit_hash);
+
+    return id(new ArcanistWorkingCopyStateRefPro())
+      ->setCommitRef($commit_ref);
+  }
+
+}
diff --git a/src/query/ArcanistGitCommitMessageHardpointQuery.php b/src/query/ArcanistGitCommitMessageHardpointQuery.php
--- a/src/query/ArcanistGitCommitMessageHardpointQuery.php
+++ b/src/query/ArcanistGitCommitMessageHardpointQuery.php
@@ -1,7 +1,7 @@
 <?php
 
 final class ArcanistGitCommitMessageHardpointQuery
-  extends ArcanistWorkflowHardpointQuery {
+  extends ArcanistWorkflowGitHardpointQuery {
 
   public function getHardpoints() {
     return array(
@@ -13,11 +13,6 @@
     return ($ref instanceof ArcanistCommitRefPro);
   }
 
-  protected function canLoadHardpoint() {
-    $api = $this->getRepositoryAPI();
-    return ($api instanceof ArcanistGitAPI);
-  }
-
   public function loadHardpoint(array $refs, $hardpoint) {
     $api = $this->getRepositoryAPI();
 
diff --git a/src/query/ArcanistGitWorkingCopyRevisionHardpointQuery.php b/src/query/ArcanistGitWorkingCopyRevisionHardpointQuery.php
new file mode 100644
--- /dev/null
+++ b/src/query/ArcanistGitWorkingCopyRevisionHardpointQuery.php
@@ -0,0 +1,81 @@
+<?php
+
+final class ArcanistGitWorkingCopyRevisionHardpointQuery
+  extends ArcanistWorkflowGitHardpointQuery {
+
+  public function getHardpoints() {
+    return array(
+      ArcanistWorkingCopyStateRefPro::HARDPOINT_REVISIONREFS,
+    );
+  }
+
+  protected function canLoadRef(ArcanistRefPro $ref) {
+    return ($ref instanceof ArcanistWorkingCopyStateRefPro);
+  }
+
+  public function loadHardpoint(array $refs, $hardpoint) {
+    yield $this->yieldRequests(
+      $refs,
+      array(
+        ArcanistWorkingCopyStateRefPro::HARDPOINT_COMMITREF,
+      ));
+
+    $hashes = array();
+    $map = array();
+    foreach ($refs as $ref_key => $ref) {
+      $commit = $ref->getCommitRef();
+
+      $commit_hashes = array();
+
+      $commit_hashes[] = array(
+        'gtcm',
+        $commit->getCommitHash(),
+      );
+
+      if ($commit->getTreeHash()) {
+        $commit_hashes[] = array(
+          'gttr',
+          $commit->getTreeHash(),
+        );
+      }
+
+      foreach ($commit_hashes as $hash) {
+        $hashes[] = $hash;
+        $hash_key = $this->getHashKey($hash);
+        $map[$hash_key][$ref_key] = $ref;
+      }
+    }
+
+    $results = array_fill_keys(array_keys($refs), array());
+    if ($hashes) {
+      $revisions = (yield $this->yieldConduit(
+        'differential.query',
+        array(
+          'commitHashes' => $hashes,
+        )));
+
+      foreach ($revisions as $dict) {
+        $revision_hashes = idx($dict, 'hashes');
+        if (!$revision_hashes) {
+          continue;
+        }
+
+        $revision_ref = ArcanistRevisionRefPro::newFromConduit($dict);
+        foreach ($revision_hashes as $revision_hash) {
+          $hash_key = $this->getHashKey($revision_hash);
+          $state_refs = idx($map, $hash_key, array());
+          foreach ($state_refs as $ref_key => $state_ref) {
+            $results[$ref_key][] = $revision_ref;
+          }
+        }
+      }
+    }
+
+    yield $this->yieldMap($results);
+  }
+
+  private function getHashKey(array $hash) {
+    return $hash[0].':'.$hash[1];
+  }
+
+}
diff --git a/src/query/ArcanistMessageRevisionHardpointQuery.php b/src/query/ArcanistMessageRevisionHardpointQuery.php
new file mode 100644
--- /dev/null
+++ b/src/query/ArcanistMessageRevisionHardpointQuery.php
@@ -0,0 +1,76 @@
+<?php
+
+final class ArcanistMessageRevisionHardpointQuery
+  extends ArcanistWorkflowHardpointQuery {
+
+  public function getHardpoints() {
+    return array(
+      ArcanistWorkingCopyStateRefPro::HARDPOINT_REVISIONREFS,
+    );
+  }
+
+  protected function canLoadRef(ArcanistRefPro $ref) {
+    return ($ref instanceof ArcanistWorkingCopyStateRefPro);
+  }
+
+  public function loadHardpoint(array $refs, $hardpoint) {
+    yield $this->yieldRequests(
+      $refs,
+      array(
+        ArcanistWorkingCopyStateRefPro::HARDPOINT_COMMITREF,
+      ));
+
+    $commit_refs = array();
+    foreach ($refs as $ref) {
+      $commit_refs[] = $ref->getCommitRef();
+    }
+
+    yield $this->yieldRequests(
+      $commit_refs,
+      array(
+        ArcanistCommitRefPro::HARDPOINT_MESSAGE,
+      ));
+
+    $map = array();
+    foreach ($refs as $ref_key => $ref) {
+      $commit_ref = $ref->getCommitRef();
+      $corpus = $commit_ref->getMessage();
+
+      $id = null;
+      try {
+        $message = ArcanistDifferentialCommitMessage::newFromRawCorpus($corpus);
+        $id = $message->getRevisionID();
+      } catch (ArcanistUsageException $ex) {
+        continue;
+      }
+
+      if (!$id) {
+        continue;
+      }
+
+      $map[$id][$ref_key] = $ref;
+    }
+
+    $results = array();
+    if ($map) {
+      $revisions = (yield $this->yieldConduit(
+        'differential.query',
+        array(
+          'ids' => array_keys($map),
+        )));
+
+      foreach ($revisions as $dict) {
+        $revision_ref = ArcanistRevisionRefPro::newFromConduit($dict);
+        $id = $dict['id'];
+
+        $state_refs = idx($map, $id, array());
+        foreach ($state_refs as $ref_key => $state_ref) {
+          $results[$ref_key][] = $revision_ref;
+        }
+      }
+    }
+
+    yield $this->yieldMap($results);
+  }
+
+}
diff --git a/src/query/ArcanistWorkflowGitHardpointQuery.php b/src/query/ArcanistWorkflowGitHardpointQuery.php
new file mode 100644
--- /dev/null
+++ b/src/query/ArcanistWorkflowGitHardpointQuery.php
@@ -0,0 +1,11 @@
+<?php
+
+abstract class ArcanistWorkflowGitHardpointQuery
+  extends ArcanistWorkflowHardpointQuery {
+
+  final protected function canLoadHardpoint() {
+    $api = $this->getRepositoryAPI();
+    return ($api instanceof ArcanistGitAPI);
+  }
+
+}
diff --git a/src/ref/ArcanistRevisionRefPro.php b/src/ref/ArcanistRevisionRefPro.php
new file mode 100644
--- /dev/null
+++ b/src/ref/ArcanistRevisionRefPro.php
@@ -0,0 +1,76 @@
+<?php
+
+final class ArcanistRevisionRefPro
+  extends ArcanistRefPro {
+
+  private $parameters;
+  private $sources = array();
+
+  public function getRefDisplayName() {
+    return pht('Revision %s', $this->getMonogram());
+  }
+
+  public function defineHardpoints() {
+    return array();
+  }
+
+  public static function newFromConduit(array $dict) {
+    $ref = new self();
+    $ref->parameters = $dict;
+    return $ref;
+  }
+
+  public function getMonogram() {
+    return 'D'.$this->getID();
+  }
+
+  public function getStatusDisplayName() {
+    return idx($this->parameters, 'statusName');
+  }
+
+  public function isClosed() {
+    // TODO: This should use sensible constants, not English language
+    // display text.
+    switch ($this->getStatusDisplayName()) {
+      case 'Abandoned':
+      case 'Closed':
+        return true;
+    }
+
+    return false;
+  }
+
+  public function getURI() {
+    return idx($this->parameters, 'uri');
+  }
+
+  public function getFullName() {
+    return pht('%s: %s', $this->getMonogram(), $this->getName());
+  }
+
+  public function getID() {
+    return idx($this->parameters, 'id');
+  }
+
+  public function getPHID() {
+    return idx($this->parameters, 'phid');
+  }
+
+  public function getName() {
+    return idx($this->parameters, 'title');
+  }
+
+  public function getAuthorPHID() {
+    return idx($this->parameters, 'authorPHID');
+  }
+
+  public function addSource(ArcanistRevisionRefSource $source) {
+    $this->sources[] = $source;
+    return $this;
+  }
+
+  public function getSources() {
+    return $this->sources;
+  }
+
+}
diff --git a/src/ref/ArcanistWorkingCopyStateRefPro.php b/src/ref/ArcanistWorkingCopyStateRefPro.php
--- a/src/ref/ArcanistWorkingCopyStateRefPro.php
+++ b/src/ref/ArcanistWorkingCopyStateRefPro.php
@@ -4,7 +4,6 @@
   extends ArcanistRefPro {
 
   const HARDPOINT_COMMITREF = 'commitRef';
-  const HARDPOINT_BRANCHREF = 'branchRef';
   const HARDPOINT_REVISIONREFS = 'revisionRefs';
 
   public function getRefDisplayName() {
@@ -14,22 +13,15 @@
   }
 
   protected function newHardpoints() {
+    $object_list = new ArcanistObjectListHardpoint();
     return array(
       $this->newHardpoint(self::HARDPOINT_COMMITREF),
-      $this->newHardpoint(self::HARDPOINT_BRANCHREF),
-      $this->newVectorHardpoint(self::HARDPOINT_REVISIONREFS),
+      $this->newTemplateHardpoint(self::HARDPOINT_REVISIONREFS, $object_list),
     );
   }
 
-  public function attachBranchRef(ArcanistBranchRef $branch_ref) {
-    return $this->attachHardpoint(self::HARDPOINT_BRANCHREF, $branch_ref);
-  }
-
-  public function getBranchRef() {
-    return $this->getHardpoint(self::HARDPOINT_BRANCHREF);
-  }
-
-  public function setCommitRef(ArcanistCommitRef $commit_ref) {
+  // TODO: This should be "attachCommitRef()".
+  public function setCommitRef(ArcanistCommitRefPro $commit_ref) {
     return $this->attachHardpoint(self::HARDPOINT_COMMITREF, $commit_ref);
   }
 
diff --git a/src/workflow/ArcanistInspectWorkflow.php b/src/workflow/ArcanistInspectWorkflow.php
--- a/src/workflow/ArcanistInspectWorkflow.php
+++ b/src/workflow/ArcanistInspectWorkflow.php
@@ -54,11 +54,13 @@
     $ref_lists = array();
     foreach ($objects as $description) {
       $matches = null;
-      if (!preg_match('/^(\w+)(?:\(([^)]+)\))?\z/', $description, $matches)) {
+      $pattern = '/^([\w-]+)(?:\(([^)]+)\))?\z/';
+      if (!preg_match($pattern, $description, $matches)) {
         throw new PhutilArgumentUsageException(
           pht(
             'Object specification "%s" is unknown, expected a specification '.
-            'like "commit(HEAD)".'));
+            'like "commit(HEAD)".',
+            $description));
       }
 
       $function = $matches[1];
@@ -149,11 +151,21 @@
     if ($ref->hasAttachedHardpoint($hardpoint_key)) {
       $mode = '*';
       $value = $ref->getHardpoint($hardpoint_key);
+
       if ($value instanceof ArcanistRefPro) {
         $children[] = $value;
+      } else if (is_array($value)) {
+        foreach ($value as $key => $child) {
+          if ($child instanceof ArcanistRefPro) {
+            $children[] = $child;
+          } else {
+            $values[] = $value;
+          }
+        }
       } else {
         $values[] = $value;
       }
+
     } else {
       $mode = 'o';
     }