feat(examples): add 05-08 (fan-out, parallel-branches, multimodal-prompt, checkpointing)

examples/00-hello-world/main.py

@@ -205,7 +205,7 @@ async def main() -> None:
     graph = build_graph()
     graph.attach_observer(trace)
     try:
-        final = await graph.invoke(PipelineState(query="what is RAG?"))
+        final = await graph.invoke(PipelineState(query="why did Apollo 13 abort its lunar landing?"))
         print(f"\nclassification: {final.classification}")
         if final.research_plan is not None:
             print(f"research_plan: {final.research_plan}")

examples/01-routing-and-subgraphs/main.py

@@ -37,7 +37,7 @@
     uv sync --group examples
     cd examples/01-routing-and-subgraphs
     LLM_API_KEY=sk-... uv run python main.py "what year did the moon landing happen"
-    LLM_API_KEY=sk-... uv run python main.py "is espresso actually more caffeinated than drip?"
+    LLM_API_KEY=sk-... uv run python main.py "why is the lunar south pole strategically important?"
 """
 
 from __future__ import annotations
@@ -454,7 +454,7 @@ def build_graph() -> CompiledGraph[AssistantState]:
 
 
 async def main() -> None:
-    question = " ".join(sys.argv[1:]) or "is espresso actually more caffeinated than drip coffee?"
+    question = " ".join(sys.argv[1:]) or "why is the lunar south pole strategically important?"
     graph = build_graph()
     try:
         final = await graph.invoke(AssistantState(question=question))

examples/02-explicit-subgraph-mapping/main.py

@@ -1,8 +1,9 @@
 """openarmature demo: same compiled subgraph reused at two sites in one parent
 graph, each site with its own ExplicitMapping.
 
-**Use case:** Compare two topics ("rust vs go", "espresso vs drip coffee")
-by running the same analysis subgraph on each, then synthesizing a verdict.
+**Use case:** Compare two topics ("Apollo program vs Artemis program",
+"Apollo 11 vs Apollo 17") by running the same analysis subgraph on each,
+then synthesizing a verdict.
 
 **Demonstrates:** One compiled subgraph reused at two parent sites with
 per-site `ExplicitMapping` — the canonical way to express "run the same
@@ -27,8 +28,8 @@
 
     uv sync --group examples
     cd examples/02-explicit-subgraph-mapping
-    LLM_API_KEY=sk-... uv run python main.py "rust" "go"
-    LLM_API_KEY=sk-... uv run python main.py "espresso vs drip coffee"
+    LLM_API_KEY=sk-... uv run python main.py "Apollo 11" "Apollo 17"
+    LLM_API_KEY=sk-... uv run python main.py "Apollo program vs Artemis program"
 """
 
 from __future__ import annotations
@@ -262,7 +263,7 @@ async def main() -> None:
     elif len(args) == 1 and " vs " in args[0].lower():
         topic_a, topic_b = re.split(r" vs ", args[0], maxsplit=1, flags=re.IGNORECASE)
     else:
-        topic_a, topic_b = "rust", "go"
+        topic_a, topic_b = "Apollo 11", "Apollo 17"
 
     graph = build_graph()
     try:

examples/03-observer-hooks/main.py

@@ -32,7 +32,7 @@
     uv sync --group examples --all-extras
     cd examples/03-observer-hooks
     LLM_API_KEY=sk-... uv run python main.py "what year did the moon landing happen"
-    LLM_API_KEY=sk-... uv run python main.py "explain the rise of espresso culture"
+    LLM_API_KEY=sk-... uv run python main.py "explain why NASA is returning to the moon with Artemis"
 
 (``--all-extras`` pulls in ``opentelemetry-sdk`` for the OTel observer.)
 """

examples/04-nested-subgraphs/main.py

@@ -30,7 +30,8 @@
     uv sync --group examples
     cd examples/04-nested-subgraphs
     LLM_API_KEY=sk-... uv run python main.py "what year did humans first land on the moon?"
-    LLM_API_KEY=sk-... uv run python main.py "how is espresso different from drip coffee?"
+    LLM_API_KEY=sk-... uv run python main.py "what happened on Apollo 13?"
+    LLM_API_KEY=sk-... uv run python main.py "who was on the Artemis II crew?"
 """
 
 from __future__ import annotations
@@ -93,23 +94,26 @@ async def _chat(system: str, user: str) -> str:
         ),
     },
     {
-        "title": "Espresso",
+        "title": "Apollo 13",
         "body": (
-            "Espresso is a coffee brewing method of Italian origin. It is made by forcing pressurized "
-            "hot water through finely ground coffee. The resulting shot is more concentrated than coffee "
-            "brewed by other methods, with a layer of crema on top. Espresso has more caffeine per "
-            "unit volume than most coffee beverages but a typical serving is one-tenth the volume of a "
-            "drip coffee, so a single espresso usually contains less total caffeine than a drip cup."
+            "Apollo 13 was the seventh crewed mission in the Apollo program and the third intended "
+            "to land on the Moon. The lunar landing was aborted after an oxygen tank in the service "
+            "module ruptured two days after launch in April 1970, crippling power and life support. "
+            "The crew of Jim Lovell, Jack Swigert, and Fred Haise used the lunar module Aquarius as "
+            "a lifeboat and looped around the Moon on a free-return trajectory before splashing down "
+            "safely in the Pacific. The mission is remembered as a successful failure."
         ),
     },
     {
-        "title": "Walking",
+        "title": "Artemis II",
         "body": (
-            "Walking is the most common form of human locomotion and is associated with a range of "
-            "health benefits including reduced risk of cardiovascular disease, improved mood, and "
-            "lower mortality. A moderate pace of around 100 steps per minute is often cited as a "
-            "useful threshold. Walking as a deliberate practice has long been associated with "
-            "thinking and writing — many writers credit long walks as part of their creative process."
+            "Artemis II was the first crewed mission of NASA's Artemis program, launching from "
+            "Kennedy Space Center on April 1, 2026 atop the Space Launch System rocket. The "
+            "ten-day flight carried astronauts Reid Wiseman, Victor Glover, Christina Koch, and "
+            "Jeremy Hansen aboard the Orion spacecraft Integrity on a free-return trajectory around "
+            "the Moon and back. It was the first crewed flight beyond low Earth orbit since Apollo "
+            "17 in 1972. The capsule splashed down in the Pacific Ocean on April 10, 2026, marking "
+            "a successful test flight ahead of the Artemis III lunar landing mission."
         ),
     },
 ]