chore: import upstream snapshot with attribution

2026-07-13 12:58:18 +08:00
commit 6d5d58c1a9
18293 changed files with 3502153 additions and 0 deletions
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+<Steps>
+  <Step>
+    ### Install the LangGraph Python SDK
+
+    <InstallPythonSDK />
+
+  </Step>
+  <Step>
+    ### Wire CopilotKit middleware into your graph
+
+    Programmatic control (`copilotkit.runAgent`, `agent.subscribe`,
+    `agent.addMessage`) drives runs through the same agent your chat UI
+    uses, so the backend wiring is the same one-line `CopilotKitMiddleware`
+    setup.
+
+    <DemoCode file="src/agents/frontend_tools.py" region="middleware" />
+
+    For the headless `useInterrupt` pattern, also use LangGraph's native
+    `interrupt(...)` inside a graph node and resume with
+    `forwardedProps: { command: { resume, interruptEvent } }` from the
+    frontend.
+
+  </Step>
+</Steps>