---
title: "Harness Packs"
section: "Builder Guide"
canonical_url: "https://support.buildwithhq.com/builder-guide/harness-packs.html"
reviewed_at: "2026-09-14"
authority: Official
---

# Harness Packs

Test AI behavior configurations against scored scenarios before they touch real customers.

## In brief

- **Audience:** Builders using AI features
- **Purpose:** Pre-release AI quality gate
- **Related:** AI assistant

Before an AI behavior configuration serves your customers, you can run it through a Harness Pack: a set of scenarios with expected outcomes, scored automatically. Configurations that don't clear the bar don't ship.

## Why this exists

AI behavior is configuration, and configuration drifts. Harness Packs make quality a gate instead of a hope — the same way you wouldn't deploy code without tests.

## Working with packs

1. Choose or author a pack of scenarios relevant to your use case.
2. Run your candidate configuration against it; each scenario is scored.
3. Review failures, adjust, re-run. Promote only when the pack passes.

---

Capability review: 2026-09-14. [View the canonical guide](https://support.buildwithhq.com/builder-guide/harness-packs.html).