'Next, I'll create the script.' / 'First, let me check the directory.' /
'Okay — running the tests.' followed by a closing {"cmd": ...} object were not
classified as leaked tool calls because the lead-in pattern anchored the action
verb at line start. Allow an optional Next/First/Then/Okay/OK/Alright marker
(with comma/dash) before the existing prefixes; the 'closes the message' and
'cmd' key constraints are unchanged, so bare/explained JSON answers still pass
through (#56920).
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