For the Love
of Building.

The best builders don't want to code less.
They want to understand more.

For the of seeing the whole thing.

File City

Your entire codebase, rendered as a living map. Watch it light up when something changes.

For the of knowing how it works.

CODE TRAILS

Four synchronized views. File City shows where. Sequence shows how. Code shows what. Plain English explains why. Click one, the others follow. Click a line, leave a note, right where it belongs.

Plain English description

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For the of being sure.

Story-Based Monitoring

Your agent said it's done. That's not the same as correct. We capture the intent in your code and show you whether the running code did what you meant.

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Ready to see your code differently?

See and build. Build and see. Verify intention. Repeat.

Download Principal AI