02PRINCIPAL FEED

Watch the builder world
in real time.

See who's building what, when they built it, and who contributed...and not just the humans.

Gary Tan's tweet about Principal Feed showing 11K views

Three surfaces. One view. Timeline shows when work happened. Feed shows what changed. File City shows where. This is how you understand a codebase in motion.

Principal Feed showing commit activity timeline, feed details, and File City visualization

Explain code in plain English. See what changed, when it changed, and where it happened. No git commands. No terminal. Just the story of what's being built.

Contributor timeline showing collaborator avatars

Discover builders through their work. Not LinkedIn profiles. Not GitHub stars. Watch what people actually build, when they build it, and how they collaborate. A chain of five faces tells a story no resume can.

Software work was invisible.
Not anymore.

For thirty years, understanding what's happening in a codebase meant reading logs, parsing diffs, and asking developers what they did. Principal Feed makes it visible. Live. To everyone.