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mabl Introduces Agentic Testing Harness

In a significant advancement for software development and quality assurance, mabl, the well-known agentic testing platform, recently announced the introduction of its new Agentic Testing Harness. This innovative solution aims to resolve the verification bottleneck often created by coding agents, enabling engineering and quality teams to function more efficiently and independently.

Enhancing Verification Processes

The advent of coding agents has profoundly transformed the software writing landscape, but it has also introduced challenges in maintaining consistent quality and reliability. With this new capability, teams can set specific standards and guardrails that guide their coding agents. This ensures that the code produced meets the defined expectations.

Dan Belcher, co-founder of mabl, emphasized the urgency for quality verification within development workflows. He stated, "Our customers want to speed up their processes with coding agents while preserving trust in the software that gets deployed. This latest release integrates mabl's independent verification directly into developers' workflows, allowing quality assurance teams to establish clear definitions of acceptable quality."

This new harness empowers engineers to see the effects of their changes directly from the terminal before finalizing any pull requests. This functionality is crucial for enhancing trust in agent-written code and maintaining a high quality of output.

Key Features of the Agentic Testing Harness

The new harness comes packed with features designed to facilitate continuous quality checks throughout the development process:

• - Agent Guardrails: Organizations can set specific objectives and restrictions for their testing processes, ensuring that coding agents operate within defined limits.
• - mabl Knowledge Graph: This tool evaluates the potential impact of any changes made and identifies the relevant tests needed to verify them, while also detecting any gaps in coverage.
• - Workflow Integration: mabl works seamlessly within the coding environment, allowing teams to assess the impact of changes on the fly.
• - Test Case Management: Mabl’s integration with platforms like Xray, Zephyr, TestRail, and Azure DevOps ensures that each coding agent adheres to the same standards, harmonizing the testing process across projects.
• - Desktop Application Testing: Future enhancements will include capabilities for independent verification of desktop applications, assisting enterprises as they modernize their tech stacks.

Real-world Impact

The past few months have been particularly telling for mabl, as its agents analyzed over 1.58 million unique failures across 3.3 million agent sessions, all while making 3.0 million calls to tool integrations. This robust use resulted in the creation of more than 4,200 test cases, translating to an estimated 100,000 engineering hours saved for customers.

The unveiling of the Agentic Testing Harness took place during the mabl Experience 2026 event held in Boston, underscoring its commitment to innovation within the realm of software quality assurance. Companies seeking advanced testing capabilities can explore the details in mabl’s documentation or begin a free trial to experience the benefits firsthand.

About mabl

As a leader in agentic testing, mabl continues to support development teams in their pursuit of higher quality software. By combining specialized testing agents with comprehensive application contexts, mabl enhances customer experiences through continuous validation, efficient automation, and trusted feedback. This paves the way for tech teams to deliver software more reliably and rapidly, equipped with the confidence needed in today’s fast-paced development cycles. For more information, visit mabl.com.