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diff --git a/src/mongo/idl/cluster_server_parameter_refresher.h b/src/mongo/idl/cluster_server_parameter_refresher.h
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+/**
+ *    Copyright (C) 2022-present MongoDB, Inc.
+ *
+ *    This program is free software: you can redistribute it and/or modify
+ *    it under the terms of the Server Side Public License, version 1,
+ *    as published by MongoDB, Inc.
+ *
+ *    This program is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *    Server Side Public License for more details.
+ *
+ *    You should have received a copy of the Server Side Public License
+ *    along with this program. If not, see
+ *    <http://www.mongodb.com/licensing/server-side-public-license>.
+ *
+ *    As a special exception, the copyright holders give permission to link the
+ *    code of portions of this program with the OpenSSL library under certain
+ *    conditions as described in each individual source file and distribute
+ *    linked combinations including the program with the OpenSSL library. You
+ *    must comply with the Server Side Public License in all respects for
+ *    all of the code used other than as permitted herein. If you modify file(s)
+ *    with this exception, you may extend this exception to your version of the
+ *    file(s), but you are not obligated to do so. If you do not wish to do so,
+ *    delete this exception statement from your version. If you delete this
+ *    exception statement from all source files in the program, then also delete
+ *    it in the license file.
+ */
+#pragma once
+
+#include "mongo/db/operation_context.h"
+#include "mongo/db/service_context.h"
+
+namespace mongo {
+
+/**
+ * Runs a background job on mongos only that periodically refreshes its in-memory cache of cluster
+ * server parameters with updated values from the config servers.
+ */
+class ClusterServerParameterRefresher {
+public:
+    ClusterServerParameterRefresher() = default;
+
+    static ClusterServerParameterRefresher* get(OperationContext* opCtx);
+    static ClusterServerParameterRefresher* get(ServiceContext* serviceCtx);
+
+    /**
+     * Create a new ClusterServerParameterRefresher as a decorator on the service context
+     * and start the background job.
+     */
+    static void start(ServiceContext* serviceCtx, OperationContext* opCtx);
+
+    /**
+     * Refreshes all cluster server parameters that have been updated on the config servers since
+     * _latestClusterParameterTime. Called periodically in the run method, which executes in a
+     * background thread. Also called in-line during getClusterParameter on mongos to ensure that
+     * cached values returned are up-to-date.
+     */
+    Status refreshParameters(OperationContext* opCtx);
+
+    /**
+     * Set the period of the background job. This should only be used internally (by the
+     * setParameter).
+     */
+    void setPeriod(Milliseconds period);
+
+private:
+    void run();
+
+    std::unique_ptr<PeriodicJobAnchor> _job;
+    LogicalTime _latestClusterParameterTime = LogicalTime::kUninitialized;
+};
+
+Status clusterServerParameterRefreshIntervalSecsNotify(const int& newValue);
+
+}  // namespace mongo