diff --git a/requirements.txt b/requirements.txt
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+# a2a-pack is auto-installed by the deploy build.
+# These starter deps power the DeepAgents tool-calling example in agent.py.
+deepagents>=0.5.0
+langchain>=0.3
+langchain-openai>=0.2
+langgraph>=0.6
+psycopg[binary]>=3.2