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fix(payments): T01 Strands Step 5c uses a fresh agent #1674

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fix(payments): T01 Strands Step 5c uses a fresh agent #1674

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15 changes: 12 additions & 3 deletions ...s-that-transact/00-getting-started/01-agents-payments-and-limits/strands_payment_agent.py
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Original file line number Diff line number Diff line change
Expand Up @@ -226,11 +226,20 @@

# ── Step 5c: Plugin built-in tools ────────────────────────────────────────────
print("\n── Step 5c: Built-in Payment Tools ──")
# The plugin registers get_payment_session, get_payment_instrument, list_payment_instruments
result = budget_agent("How much budget do I have left in my current session?")
# The plugin registers get_payment_session, get_payment_instrument, list_payment_instruments.
# A fresh agent is used here so a string prompt is always valid — reusing budget_agent
# fails with TypeError if Step 5a/5b left it in interrupt state (e.g. ProcessPayment failed).
introspection_agent = Agent(
model=BedrockModel(model_id=MODEL_ID, streaming=True),
tools=[http_request],
plugins=[budget_plugin],
system_prompt=SYSTEM_PROMPT,
)

result = introspection_agent("How much budget do I have left in my current session?")
print(result.message)

result = budget_agent("What payment instruments (wallets) do I have available?")
result = introspection_agent("What payment instruments (wallets) do I have available?")
print(result.message)

# ── Step 5d: Uncapped session ─────────────────────────────────────────────────
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