How Hexi behaves

What Hexi’s code holds it to, each set out on its system card.

It says what leaves

Hexi runs on your machine. /privacy lists what it sends, and one switch keeps that to what each message needs. A message or picture holding what looks like a password, key or card number is stopped before it is sent.

Its reflexes only add caution

In full access mode, its nervous system can make Hexi ask before it runs a command. It can never let through what the safety rules stopped.

The policy fails closed

What an organisation’s policy does not allow, Hexi does not do, and no user can loosen it.

It says what it is

Its feelings are measurements, not emotions, and every model it ships with or names as an option is listed with its origin and licence.

What its nervous system does

Real brain wiring beside the model, with a learning centre, a memory and a gate of its own. Each picture is that wiring, drawn from its cell bodies, with what Hexi’s own code lit up in it. The system card has the detail, and the credits.

The brain wiring Hexi runs, with the neurons that fired for a success, an error, a touch and heat lit in green, red, blue and orange.

It feels what happens

A success tastes sweet and an error bitter; your message is a touch, a busy host is heat.

Looming detectors lit in purple, joined to the two escape neurons, which glow red as they fire.

It flinches

In full access mode, a command that looks dangerous looms in front of it. If its escape neuron fires, Hexi asks first.

The learning-centre cells a risky command lights, feeding a gate whose go channel is blocked and whose hold channel lights up.

It weighs the risk

A go/no-go gate, modelled on the basal ganglia, weighs a risky command. In this version its reading does not stop one.

A failed command’s learning-centre cells in orange, the punishment dopamine neurons in red, and the output neurons they weaken in blue.

It learns how commands go

How commands turn out teaches its learning centre what to expect.

Rings mark the cells a past failure lit; dots mark a new, similar failure’s cells, most of them inside the rings.

It remembers fixes

A failure is filed with what fixed it, and recalled when a similar command fails.

The same learning-centre cells lit three times in a row, the third time in red.

It notices loops

The third failure in a row with nothing changed makes it stop and look for the cause.

An action’s learning-centre cells in blue, joined to the output neurons whose sum is Hexi’s guess.

It expects, and is surprised

It guesses how likely an action is to work. A confident miss is a surprise it remembers.

The brain and nerve cord from above, with the arousal neurons in orange and the neurons that fired after them in red.

It gets frustrated

Frustration makes it change approach or ask, and fires its arousal neurons.

The brain at night, with the cells of troubles that keep coming back lit in gold and the punishment dopamine neurons in pale blue.

It sleeps

Between sessions its memory folds duplicates, lets stale lessons fade and replays what keeps coming back.