diff --git a/include/crm/common/Makefile.am b/include/crm/common/Makefile.am
index f54b30903c..8f0511cc85 100644
--- a/include/crm/common/Makefile.am
+++ b/include/crm/common/Makefile.am
@@ -1,41 +1,42 @@
 #
 # Copyright 2004-2023 the Pacemaker project contributors
 #
 # The version control history for this file may have further details.
 #
 # This source code is licensed under the GNU General Public License version 2
 # or later (GPLv2+) WITHOUT ANY WARRANTY.
 #
 
 MAINTAINERCLEANFILES = Makefile.in
 
 headerdir=$(pkgincludedir)/crm/common
 
 header_HEADERS = acl.h 			\
 		 actions.h		\
 		 agents.h 		\
 		 agents_compat.h 	\
 		 cib.h 			\
 		 ipc.h 			\
 		 ipc_controld.h 	\
 		 ipc_pacemakerd.h 	\
 		 ipc_schedulerd.h 	\
 		 iso8601.h 		\
 		 logging.h 		\
 		 logging_compat.h 	\
 		 mainloop.h 		\
 		 mainloop_compat.h 	\
 		 nodes.h 		\
 		 nvpair.h 		\
 		 output.h 		\
 		 resources.h		\
 		 results.h 		\
 		 results_compat.h 	\
 		 roles.h		\
 		 scheduler.h		\
+		 scheduler_types.h	\
 		 util.h 		\
 		 util_compat.h 		\
 		 xml.h 			\
 		 xml_compat.h
 
 noinst_HEADERS = $(wildcard *internal.h)
diff --git a/include/crm/common/scheduler.h b/include/crm/common/scheduler.h
index 152f68150b..79419ea9d1 100644
--- a/include/crm/common/scheduler.h
+++ b/include/crm/common/scheduler.h
@@ -1,166 +1,167 @@
 /*
  * Copyright 2004-2023 the Pacemaker project contributors
  *
  * The version control history for this file may have further details.
  *
  * This source code is licensed under the GNU Lesser General Public License
  * version 2.1 or later (LGPLv2.1+) WITHOUT ANY WARRANTY.
  */
 
 #ifndef PCMK__CRM_COMMON_SCHEDULER__H
 #  define PCMK__CRM_COMMON_SCHEDULER__H
 
 #include <crm/common/actions.h>
 #include <crm/common/nodes.h>
 #include <crm/common/resources.h>
 #include <crm/common/roles.h>
+#include <crm/common/scheduler_types.h>
 
 #ifdef __cplusplus
 extern "C" {
 #endif
 
 /*!
  * \file
  * \brief Scheduler API
  * \ingroup core
  */
 
 //! Possible responses to loss of quorum
 enum pe_quorum_policy {
     pcmk_no_quorum_freeze,  //<! Do not recover resources from outside partition
     pcmk_no_quorum_stop,    //<! Stop all resources in partition
     pcmk_no_quorum_ignore,  //<! Act as if partition still holds quorum
     pcmk_no_quorum_fence,   //<! Fence all nodes in partition
     pcmk_no_quorum_demote,  //<! Demote promotable resources and stop all others
 
 #if !defined(PCMK_ALLOW_DEPRECATED) || (PCMK_ALLOW_DEPRECATED == 1)
     //! \deprecated Use pcmk_no_quorum_freeze instead
     no_quorum_freeze    = pcmk_no_quorum_freeze,
 
     //! \deprecated Use pcmk_no_quorum_stop instead
     no_quorum_stop      = pcmk_no_quorum_stop,
 
     //! \deprecated Use pcmk_no_quorum_ignore instead
     no_quorum_ignore    = pcmk_no_quorum_ignore,
 
     //! \deprecated Use pcmk_no_quorum_fence instead
     no_quorum_suicide   = pcmk_no_quorum_fence,
 
     //! \deprecated Use pcmk_no_quorum_demote instead
     no_quorum_demote    = pcmk_no_quorum_demote,
 #endif
 };
 
 //! Scheduling options and conditions
 enum pcmk_scheduler_flags {
     //! No scheduler flags set (compare with equality rather than bit set)
     pcmk_sched_none                     = 0ULL,
 
     // These flags are dynamically determined conditions
 
     //! Whether partition has quorum (via have-quorum property)
     pcmk_sched_quorate                  = (1ULL << 0),
 
     //! Whether cluster is symmetric (via symmetric-cluster property)
     pcmk_sched_symmetric_cluster        = (1ULL << 1),
 
     //! Whether cluster is in maintenance mode (via maintenance-mode property)
     pcmk_sched_in_maintenance           = (1ULL << 3),
 
     //! Whether fencing is enabled (via stonith-enabled property)
     pcmk_sched_fencing_enabled          = (1ULL << 4),
 
     //! Whether cluster has a fencing resource (via CIB resources)
     pcmk_sched_have_fencing             = (1ULL << 5),
 
     //! Whether any resource provides or requires unfencing (via CIB resources)
     pcmk_sched_enable_unfencing         = (1ULL << 6),
 
     //! Whether concurrent fencing is allowed (via concurrent-fencing property)
     pcmk_sched_concurrent_fencing       = (1ULL << 7),
 
     /*!
      * Whether resources removed from the configuration should be stopped (via
      * stop-orphan-resources property)
      */
     pcmk_sched_stop_removed_resources   = (1ULL << 8),
 
     /*!
      * Whether recurring actions removed from the configuration should be
      * cancelled (via stop-orphan-actions property)
      */
     pcmk_sched_cancel_removed_actions   = (1ULL << 9),
 
     //! Whether to stop all resources (via stop-all-resources property)
     pcmk_sched_stop_all                 = (1ULL << 10),
 
     /*!
      * Whether start failure should be treated as if migration-threshold is 1
      * (via start-failure-is-fatal property)
      */
     pcmk_sched_start_failure_fatal      = (1ULL << 12),
 
     //! \deprecated Do not use
     pcmk_sched_remove_after_stop        = (1ULL << 13),
 
     //! Whether unseen nodes should be fenced (via startup-fencing property)
     pcmk_sched_startup_fencing          = (1ULL << 14),
 
     /*!
      * Whether resources should be left stopped when their node shuts down
      * cleanly (via shutdown-lock property)
      */
     pcmk_sched_shutdown_lock            = (1ULL << 15),
 
     /*!
      * Whether resources' current state should be probed (when unknown) before
      * scheduling any other actions (via the enable-startup-probes property)
      */
     pcmk_sched_probe_resources          = (1ULL << 16),
 
     //! Whether the CIB status section has been parsed yet
     pcmk_sched_have_status              = (1ULL << 17),
 
     //! Whether the cluster includes any Pacemaker Remote nodes (via CIB)
     pcmk_sched_have_remote_nodes        = (1ULL << 18),
 
     // The remaining flags are scheduling options that must be set explicitly
 
     /*!
      * Whether to skip unpacking the CIB status section and stop the scheduling
      * sequence after applying node-specific location criteria (skipping
      * assignment, ordering, actions, etc.).
      */
     pcmk_sched_location_only            = (1ULL << 20),
 
     //! Whether sensitive resource attributes have been masked
     pcmk_sched_sanitized                = (1ULL << 21),
 
     //! Skip counting of total, disabled, and blocked resource instances
     pcmk_sched_no_counts                = (1ULL << 23),
 
     /*!
      * Skip deprecated code kept solely for backward API compatibility
      * (internal code should always set this)
      */
     pcmk_sched_no_compat                = (1ULL << 24),
 
     //! Whether node scores should be output instead of logged
     pcmk_sched_output_scores            = (1ULL << 25),
 
     //! Whether to show node and resource utilization (in log or output)
     pcmk_sched_show_utilization         = (1ULL << 26),
 
     /*!
      * Whether to stop the scheduling sequence after unpacking the CIB,
      * calculating cluster status, and applying node health (skipping
      * applying node-specific location criteria, assignment, etc.)
      */
     pcmk_sched_validate_only            = (1ULL << 27),
 };
 
 #ifdef __cplusplus
 }
 #endif
 
 #endif // PCMK__CRM_COMMON_SCHEDULER__H
diff --git a/include/crm/common/scheduler_types.h b/include/crm/common/scheduler_types.h
new file mode 100644
index 0000000000..ff8ab7aa1f
--- /dev/null
+++ b/include/crm/common/scheduler_types.h
@@ -0,0 +1,30 @@
+/*
+ * Copyright 2023 the Pacemaker project contributors
+ *
+ * The version control history for this file may have further details.
+ *
+ * This source code is licensed under the GNU Lesser General Public License
+ * version 2.1 or later (LGPLv2.1+) WITHOUT ANY WARRANTY.
+ */
+
+#ifndef PCMK__CRM_COMMON_SCHEDULER_TYPES__H
+#  define PCMK__CRM_COMMON_SCHEDULER_TYPES__H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*!
+ * \file
+ * \brief Type aliases needed to define scheduler objects
+ * \ingroup core
+ */
+
+//! Node object (including information that may vary depending on resource)
+typedef struct pe_node_s pcmk_node_t;
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // PCMK__CRM_COMMON_SCHEDULER_TYPES__H