Vapi Made Crystal Clear · chapter 2: How a voice agent actually works
Assistant against squad, with the condition each one suits, and the retirement that...
2026-09-11
Anything you read that opens a node-and-edge workflow builder is describing a runtime that stopped on 19 August 2026.
Below: the paragraph from the book that builds this idea, then the diagram itself (Figure 2.2), and a recap. About a minute of reading.
The API change is one word: "If you're passing a workflowId in your call configuration, you'll need to switch to passing a squadId instead." Figure 2.2 puts the two surviving primitives side by side and marks the date the third one stopped.
Recap
- The idea: Anything you read that opens a node-and-edge workflow builder is describing a runtime that stopped on 19 August 2026.
- The picture: Figure 2.2, from chapter 2 ("How a voice agent actually works") of Vapi Made Crystal Clear.
- Go deeper: the chapter builds this step by step, with recipes and sources at the end.
This diagram is one of many in Vapi Made Crystal Clear.
Every chapter opens with the gist, draws the hard ideas, and ends with recipes and sources.
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