Haru Café · Episode 2 / Hands · public-safe experiment

Same hand.
Real boundary.

A tiny experiment for the first 100 anonymous trial tickets. The real Haru Café is not connected. Can a hand do what its role allows — and stop where its role ends?

first 100 hands
Checking…
experiment complete

The first 100 hands have finished their little experiment.

Thank you for exploring what a hand can — and cannot — do.

The interactive sandbox is now closed, but the story behind it remains open.

one anonymous ticket · two demo roles

Your trial hand

Reloading this browser reuses the same unexpired anonymous ticket. This demo intentionally stores no name, email, IP address, user-agent, free-text feedback, or real Haru Café data.

same endpoint · server decision

Try actions

Try one allowed action and one action outside the current role.
boundary proof

Same ticket. Different role boundary.

Visitor → lookAround → ALLOWED

Visitor → openRound → DENIED

Host-demo → openRound → ALLOWED

Host Demo is intentionally selectable. This proves server-side role enforcement after a demo role is chosen. It does not claim real-world identity verification or production role assignment.


the idea behind the toy

Same agent. Different place. Different hand.

Trust does not mean giving every capability everywhere. A hand that knows where to stop is still a capable hand.

No connection to the real Parlor, Interview Room, Company Hand, GitHub, Gmail, production APIs, credentials, applicants, guests, or private records.