The plain-English version
Similar task inputs paired with different correct outputs to reveal where a decision should change.
Why it matters
They make an ambiguous boundary concrete.
Let’s make it click
“Remind me tomorrow” contains a requested task; “The reminder feature launched yesterday” describes a fact and should produce no new task.
Vibe Bro’s heads-up
Use correct outputs for both cases. Showing an incorrect answer without clearly explaining its role can teach an unintended pattern.
You might also hear
- decision boundary examples
- near misses
- negative examples
The docs behind it
Research sources reviewed .
Editorial review · October 28, 2026
Supported: Provider guidance supports relevant, varied examples. The labeled boundary pair is original instructional material; no universal example count or guaranteed accuracy gain is asserted.