diff --git a/include/crm/common/Makefile.am b/include/crm/common/Makefile.am
index 1ab58737da..8228de8a28 100644
--- a/include/crm/common/Makefile.am
+++ b/include/crm/common/Makefile.am
@@ -1,25 +1,25 @@
 #
 # Copyright 2004-2021 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 = xml.h ipc.h util.h iso8601.h mainloop.h logging.h results.h \
-		 nvpair.h acl.h agents.h ipc_controld.h ipc_pacemakerd.h \
+		 nvpair.h acl.h agents.h ipc_controld.h ipc_pacemakerd.h output.h \
 		 agents_compat.h	\
 		 logging_compat.h	\
 		 mainloop_compat.h	\
 		 util_compat.h		\
 		 xml_compat.h
 noinst_HEADERS = internal.h alerts_internal.h \
 		 iso8601_internal.h remote_internal.h xml_internal.h \
 		 ipc_internal.h output_internal.h cmdline_internal.h	\
 		 curses_internal.h attrd_internal.h options_internal.h	\
 		 strings_internal.h lists_internal.h logging_internal.h
diff --git a/include/crm/common/output.h b/include/crm/common/output.h
new file mode 100644
index 0000000000..05fbb6746e
--- /dev/null
+++ b/include/crm/common/output.h
@@ -0,0 +1,56 @@
+/*
+ * Copyright 2021 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__COMMON_OUTPUT__H
+#  define PCMK__COMMON_OUTPUT__H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * \file
+ * \brief Control output from tools
+ * \ingroup core
+ */
+
+/*!
+ * \brief Control which sections are output
+ */
+typedef enum {
+    pcmk_section_stack         = 1 << 0,
+    pcmk_section_dc            = 1 << 1,
+    pcmk_section_times         = 1 << 2,
+    pcmk_section_counts        = 1 << 3,
+    pcmk_section_options       = 1 << 4,
+    pcmk_section_nodes         = 1 << 5,
+    pcmk_section_resources     = 1 << 6,
+    pcmk_section_attributes    = 1 << 7,
+    pcmk_section_failcounts    = 1 << 8,
+    pcmk_section_operations    = 1 << 9,
+    pcmk_section_fence_failed  = 1 << 10,
+    pcmk_section_fence_pending = 1 << 11,
+    pcmk_section_fence_worked  = 1 << 12,
+    pcmk_section_tickets       = 1 << 13,
+    pcmk_section_bans          = 1 << 14,
+    pcmk_section_failures      = 1 << 15,
+} pcmk_section_e;
+
+#define pcmk_section_fencing_all    (pcmk_section_fence_failed | pcmk_section_fence_pending | pcmk_section_fence_worked)
+#define pcmk_section_summary        (pcmk_section_stack | pcmk_section_dc | pcmk_section_times | pcmk_section_counts)
+#define pcmk_section_all            (pcmk_section_summary | pcmk_section_options | pcmk_section_nodes | \
+                                     pcmk_section_resources | pcmk_section_attributes | pcmk_section_failcounts | \
+                                     pcmk_section_operations | pcmk_section_fencing_all | pcmk_section_tickets | \
+                                     pcmk_section_bans | pcmk_section_failures)
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // PCMK__COMMON_OUTPUT__H