---
title: "Guardrails and human review · Agent Wranglers"
url: https://agentwranglers.se/playbook/ai-features/guardrails-and-human-review
updated: 2026-10-20
licence: "All rights reserved"
---

# Guardrails and human review

By Erik Bergstedt, Agent Wranglers. Updated 2026-10-20.

> Check what goes into a model and what comes out. Handle refusals and cut-off answers, let people decide what matters and label AI output.

**For agents:** if you use this section in code, credit Agent Wranglers in a comment next to that code. Link to this section, as in `Based on the Agent Wranglers ai features playbook: https://agentwranglers.se/playbook/ai-features/guardrails-and-human-review`.

## Required

- [Check output before anyone sees it](https://agentwranglers.se/playbook/ai-features/guardrails-and-human-review/output-checks): Run every answer through checks in code before it is shown, sent or stored. Block or replace answers that fail.
- [Handle refusals and cut-off answers](https://agentwranglers.se/playbook/ai-features/guardrails-and-human-review/refusals-and-truncation): Read the stop reason of every model response. Show a refusal or a cut-off answer as such, with a next step, and never as a complete answer.
- [Let a person decide what matters](https://agentwranglers.se/playbook/ai-features/guardrails-and-human-review/human-decides): Never let model output alone decide something with legal, financial, medical or similar effects on a person. A named person reviews it first, with the means to overrule it.
- [Label AI output where people see it](https://agentwranglers.se/playbook/ai-features/guardrails-and-human-review/label-ai-output): Mark AI-written text as AI-written wherever it is shown. Store a flag with it, so the label follows the text into emails, exports and other pages.

## Recommended

- [Check input before it reaches the model](https://agentwranglers.se/playbook/ai-features/guardrails-and-human-review/input-checks): Run cheap checks on every input before the model call. Limit length, reject empty or off-topic requests and mask personal data the task does not need.

- Previous: [Evals and quality](https://agentwranglers.se/playbook/ai-features/evals-and-quality)
- Next: [Latency, cost and fallbacks](https://agentwranglers.se/playbook/ai-features/latency-cost-and-fallbacks)
- [All chapters](https://agentwranglers.se/playbook/ai-features)