---
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title: Spend Less Time on Manual Testing with the Agentforce Assistant (Beta)
collection: admin
version: current
locale: en-us
portal_url: https://docs.salesforce.com/admin/current/en-us/release-notes/264-0-0/rn_agentforce_dev_preview.md
canonical_url: https://help.salesforce.com/s/articleView?id=release-notes.rn_agentforce_dev_preview.htm&release=264.0.0&type=5
source_site: help.salesforce.com
content_type: documentation
content_hash: 6b4d8728a0f62838520af11d7f681ad0ac817ede7610b0812384602938d6afb7
description: The Agentforce assistant no longer just suggests changes to your agent. Now it can test them for you, too. When the assistant suggests a change, it automatically runs previews in simulate mode to validate your agent’s basic functionality and its performance against variations and edge cases. Then it iterates until your agent behaves as expected, so you can accept the assistant’s changes with less manual verification. You can also prompt the assistant to test your own changes. For example, ask it to run a specific subagent through different personas and refine based on the results.
products:
  - Cross Cloud
release: "264"
---
# Spend Less Time on Manual Testing with the Agentforce Assistant (Beta)

The Agentforce assistant no longer just suggests changes to your agent. Now it can test them for you, too. When the assistant suggests a change, it automatically runs previews in simulate mode to validate your agent’s basic functionality and its performance against variations and edge cases. Then it iterates until your agent behaves as expected, so you can accept the assistant’s changes with less manual verification. You can also prompt the assistant to test your own changes. For example, ask it to run a specific subagent through different personas and refine based on the results.

**Where:** This change applies to Lightning Experience in Enterprise, Performance, Unlimited, and Developer Editions with Foundations or Agentforce 1 Editions. Setup for AI agents is available on the desktop site.

![Note](https://sf-zdocs-cdn-prod.zoominsoftware.com/tdta-release-notes-salesforce_release_notes-264-0-0-production-enus/550ba85b-db1a-4608-9cd4-9a65ec96e1fa/images/icon_note.png)

Note

Agentforce Development Agent is a beta service that is subject to the Beta Services Terms at [Agreements - Salesforce.com](http://salesforce.com) or a written Unified Pilot Agreement if executed by Customer. Use of this beta service is at the Customer's sole discretion.

**When:** This change is available on a rolling basis in Salesforce orgs upgraded to Winter ’27 starting the week of September 28, 2026. Go to [trust.salesforce.com](http://trust.salesforce.com) for exact dates.

#### See Also

- [_Salesforce Help_: Build, Extend, and Troubleshoot Your Agent with AI Assistance (Beta)](https://help.salesforce.com/s/articleView?id=ai.agent_optimize_dev.htm&language=en_US)