Human-in-the-Loop (HITL) introduces explicit checkpoints where an agent pauses and requests review, approval, or edits before continuing.
Why It Matters
HITL is not a UI feature; it is a control pattern that affects state, timeouts, escalation paths, and auditability.
Common Decisions
- Where to place checkpoints (high-risk actions, irreversible operations).
- How to present context (diffs, summaries, citations, tool traces).
- What happens on timeout (retry, fallback mode, abort).