fix(genai): use standard baggage key for agent name

Author: sipercai

util/opentelemetry-util-genai/CHANGELOG-loongsuite.md

@@ -9,10 +9,10 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Added
 
-- Propagate agent name through the internal `traffic.llm_sdk.gen_ai.agent.name`
-  Baggage key during `start_invoke_agent` and automatically apply it as
-  `gen_ai.agent.name` to nested GenAI child span attributes, including LLM,
-  embedding, tool, retrieval, rerank, memory, entry, and ReAct step invocations.
+- Propagate agent name through the `gen_ai.agent.name` Baggage key during
+  `start_invoke_agent` and automatically apply it to nested GenAI child span
+  attributes, including LLM, embedding, tool, retrieval, rerank, memory, entry,
+  and ReAct step invocations.
 
 ## Version 0.6.0 (2026-06-03)
 

util/opentelemetry-util-genai/README-loongsuite.rst

@@ -29,8 +29,8 @@ OpenTelemetry Util for GenAI - LoongSuite 扩展
 
 - **llm**：聊天/补全类调用；支持多模态消息的**外置存储与 URI 替换**（见第 4 节），减轻 Trace 体积。
 - **invoke_agent / create_agent**：Agent 调用与创建；``invoke_agent`` 可将
-  Agent 名称写入内部 Baggage key ``traffic.llm_sdk.gen_ai.agent.name``，
-  使其下游 LLM、工具、检索、ReAct step 等 GenAI 子 Span 自动带上
+  Agent 名称写入 Baggage key ``gen_ai.agent.name``，使其下游 LLM、
+  工具、检索、ReAct step 等 GenAI 子 Span 自动带上
   ``gen_ai.agent.name`` 属性。
 - **embedding**：向量嵌入。
 - **execute_tool**：工具/函数执行。

util/opentelemetry-util-genai/src/opentelemetry/util/genai/extended_handler.py

@@ -147,9 +147,6 @@ class ExtendedTelemetryHandler(MultimodalProcessingMixin, TelemetryHandler):  #
     - Async multimodal processing (via MultimodalProcessingMixin)
     """
 
-    # Aliyun Python Agent Extension
-    _AUTO_INJECT_BAGGAGE_PREFIX = "traffic.llm_sdk."
-
     def __init__(
         self,
         tracer_provider: TracerProvider | None = None,
@@ -490,9 +487,8 @@ def start_invoke_agent(
         current_context = _current_context(context)
         ctx = set_span_in_context(span, current_context)
         if invocation.agent_name:
-            # Aliyun Python Agent Extension
             ctx = baggage.set_baggage(
-                f"{self._AUTO_INJECT_BAGGAGE_PREFIX}{GenAI.GEN_AI_AGENT_NAME}",
+                GenAI.GEN_AI_AGENT_NAME,
                 invocation.agent_name,
                 ctx,
             )

util/opentelemetry-util-genai/src/opentelemetry/util/genai/handler.py

@@ -103,11 +103,8 @@
 # LoongSuite Extension
 logger = logging.getLogger(__name__)
 
-# Aliyun Python Agent Extension
-_AUTO_INJECT_BAGGAGE_PREFIX = "traffic.llm_sdk."
-_AGENT_NAME_BAGGAGE_KEY = (
-    f"{_AUTO_INJECT_BAGGAGE_PREFIX}{GenAI.GEN_AI_AGENT_NAME}"
-)
+# LoongSuite Extension
+_AGENT_NAME_BAGGAGE_KEY = GenAI.GEN_AI_AGENT_NAME
 
 
 class _InvocationWithAttributes(Protocol):

util/opentelemetry-util-genai/tests/test_extended_handler.py

@@ -104,7 +104,7 @@
     Uri,
 )
 
-_AGENT_NAME_BAGGAGE_KEY = "traffic.llm_sdk.gen_ai.agent.name"
+_AGENT_NAME_BAGGAGE_KEY = "gen_ai.agent.name"
 
 
 def patch_env_vars(