Build a simple AI chat assistant that can check weather and news

flowchart TD trig(("user types a message")):::human s0["AI decides if tool needed"]:::task s1["generate response"]:::task trig --> s0 gx{"× weather news or neither"}:::gate s0 --> gx p00["check live weather data"]:::task gx -->|"weather lookup"| p00 p10["check news feed"]:::task gx -->|"news lookup"| p10 jn{"○ combine into answer"}:::gate p00 --> jn p10 --> jn jn --> s1 out[/"working AI chat assistant"/]:::out pay{{"hands-on example of AI agents"}}:::pay s1 --> out out --> pay classDef task fill:#e7f6fe,stroke:#34b8f0,color:#2c2a29 classDef svc fill:#f6f8fa,stroke:#7c8795,color:#2c2a29 classDef mi fill:#e7f6fe,stroke:#0079a8,color:#2c2a29,stroke-width:2px classDef human fill:#fff,stroke:#0079a8,color:#0079a8 classDef store fill:#f6f8fa,stroke:#0079a8,color:#2c2a29 classDef trig fill:#00a4eb,stroke:#0079a8,color:#fff,font-weight:bold classDef trigtime fill:#00a4eb,stroke:#0079a8,color:#fff,font-weight:bold classDef trigdata fill:#8ad4f5,stroke:#0079a8,color:#06314c,font-weight:bold classDef gate fill:#fff,stroke:#e8a23d,color:#6b4708,font-weight:bold classDef out fill:#1f9d6b,stroke:#167a53,color:#fff,font-weight:bold classDef pay fill:#06314c,stroke:#021f33,color:#fff