Dev Tools

Prax provides developer-focused tools to help you debug, inspect, and customize your flows.

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Flow Inspector

Each node’s input/output can be inspected live during execution.

• Open any flow

• Run it through the chat or API

• Click any node to inspect:

  • Inputs

  • Outputs

  • Errors

  • Execution duration

Useful for tracing logic and debugging failures.

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Console Output

For local development, logs are printed to the terminal:

bashCopyEditnpm run dev

You’ll see:

• Node executions

• API requests

• Errors or invalid configs

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Dev Mode Config

Use .env settings to toggle dev-specific behavior:

envCopyEditDEV_MODE=true
LOG_LEVEL=debug

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Custom Node Development

You can build your own node types:

bashCopyEditsrc/
  nodes/
    my-custom-node/
      index.ts

A basic custom node structure:

tsCopyEditmodule.exports = {
  name: "MyCustomNode",
  inputs: ["text"],
  outputs: ["result"],
  run: async ({ text }) => {
    return { result: text.toUpperCase() };
  }
}

Custom nodes can be hot-reloaded during development and will appear in the flow editor.