Deleted chats remain accessible via direct URL in Google AI Studio

Siva, the issue is not that you ‘reproduced’ the behavior.
The issue is that you present it as if you just discovered it, when as a developer you obviously know exactly how this system works.

The ‘Delete’ button does not delete anything.
The chat still loads through the direct link, the Drive file is only metadata, and the actual removal only happens when Drive’s 30‑day trash timer deletes that metadata entry.

This is not a quirk and not a surprise.
It’s intentional design — and the TOS conveniently avoids defining what ‘deletion’ means, which is why this comes across as misleading from a user’s perspective.

Siva, the problem is that you describe this behavior as if it were unexpected or something you just reproduced.

But as a developer, you know exactly why the system behaves this way.

The ‘Delete’ button does not delete anything — it only hides the chat while the actual data remains accessible until Drive’s 30‑day trash cycle removes the metadata.
Presenting this as a minor quirk gives users the wrong impression about what is really happening behind the scenes.

Look, here’s your colleague’s official explanation.