ReAct
You might say
Can the AI work step by step instead of trying to do everything at once?
A task pattern where an agent decides, acts with a tool, observes the result, and decides againWhile researching competitors, an agent can decide what is missing, search, read the results, then choose whether to verify more or summarize. ReAct describes that cycle; it does not set tool permissions or retry limits.
Know first
Reason + Act
Why inspect a check result after changing a real file?
login-button.jsx
1
<button>Sign in</button>Task state: the sign-in button does not respond; the cause is not known yet.Task goal
How observation chooses the next action
Make a task-level judgment：From the goal and evidence, the model decides what to inspect next.
Observe a real result：A tool reads a file, makes a change, or runs a check and returns evidence.
Choose from the observation：The model updates a task-level summary and selects the next check or repair, without exposing private reasoning.
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Further reading