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diff --git a/src/jaegertracing/jaeger-client-cpp/idl/thrift/baggage.thrift b/src/jaegertracing/jaeger-client-cpp/idl/thrift/baggage.thrift
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+# Copyright (c) 2017 Uber Technologies, Inc.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+namespace cpp jaegertracing.thrift
+namespace java io.jaegertracing.thriftjava
+namespace php Jaeger.Thrift.Agent
+namespace netcore Jaeger.Thrift.Agent
+
+# BaggageRestriction contains the baggage key and the maximum length of the baggage value.
+struct BaggageRestriction {
+   1: required string baggageKey
+   2: required i32 maxValueLength
+}
+
+service BaggageRestrictionManager  {
+    /**
+     * getBaggageRestrictions retrieves the baggage restrictions for a specific service.
+     * Usually, baggageRestrictions apply to all services however there may be situations
+     * where a baggageKey might only be allowed to be set by a specific service.
+     */
+    list<BaggageRestriction> getBaggageRestrictions(1: string serviceName)
+}