Build a personal AI chat assistant with built-in helper tools

flowchart TD trig>"user sends chat message"]:::trig s0["read message and decide need"]:::task s1["reply in chat"]:::task trig --> s0 gx{"× what tool is needed"}:::gate s0 --> gx p00["look up fact"]:::task gx -->|"fact lookup"| p00 p10["calculate result"]:::task gx -->|"calculation"| p10 p20["generate password"]:::task gx -->|"password generation"| p20 jn{"○ reply sent"}:::gate p00 --> jn p10 --> jn p20 --> jn jn --> s1 out[/"direct answer or completed task"/]:::out pay{{"quick help without switching apps"}}:::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