Glossary · Execution

Human-in-the-loop handoff

Pausing a run at a step that needs a person — an approval or an MFA prompt on an authorized flow — then resuming automatically once it’s cleared.

What is human-in-the-loop handoff?

Human-in-the-loop (HITL) handoff is the mechanism that suspends an automated run when it hits a step a person must clear — a manual approval, or a multi-factor prompt on a flow you’re authorized to run — surfaces it to a human, and resumes the skill from the same point once the gate is satisfied.

Why it matters

Real authenticated workflows aren’t fully autonomous; they have checkpoints. HITL keeps a long flow from failing at the first gate and keeps a human in control of sensitive steps, which is what makes Twin usable for internal RPA, finance ops, and authorized testing rather than just public scraping.

See it in context: read how Twin compiles and replays a run, follow the cost-cutting guide, or browse use cases and comparisons.

Run your first skill

Give an LLM agent a real browser, compile the workflow once, and watch the marginal cost fall as the cache takes over.