The three moments

What each check can still change

One turn, from the owner's message to the turn end. Click a moment.

1

The owner's message

Can still change
What the agent does next
Cannot change
Nothing has run yet

Message arrives

from the owner

Agent thinks

plans its next acts

2

Each action

Can still change
Allow or stop this act, before it runs
Cannot change
Acts that already ran
Check first

Action 1

Check first

Action 2

Check first

Action 3

Owner sees it

Reply shown

3

The turn end

Can still change
Keep working, or stop
Cannot change
The reply. It is already shown.
Check

Turn end

The reply is printed before the turn end check runs.

A check can only change what has not happened yet. By the turn end, the owner is already reading the reply.