AgentRx, the proprietary self-healing engine from TestGrid powering CoTester, addresses this by intelligently detecting and adapting to application changes in real-time—even handling major redesigns. Integrated into CoTester 2.0, AgentRx enables resilient, low-maintenance test automation for enterprise applications.
What Is AgentRx?
AgentRx is TestGrid’s AI-driven self-healing module within CoTester, the enterprise AI testing agent. It uses multimodal vision-language models to analyze screens, text, and layouts, detecting UI changes during test execution and automatically updating scripts on the fly.
For beginners, AgentRx acts as a safety net: When a test fails due to a shifted button or redesigned page, it identifies the issue and reroutes without breaking the run.
Intermediate users see it maintaining stability across versions, reducing manual fixes.
Advanced enterprise deployments leverage its integration with guardrails and CoTester’s agents for controlled, scalable healing in complex environments like ServiceNow or dynamic web apps.
The Evolution of AgentRx
AgentRx emerged with CoTester’s 2024 launch, initially handling basic locator fixes.
CoTester 2.0 in September 2025 elevated it with multimodal VLM for deeper understanding of visuals and context, enabling healing for structural shifts and full redesigns.
2026, refinements improve real-time adaptation and integration with CoTester’s features, earning awards for innovation in AI testing.
This progression transforms brittle automation into adaptive, reliable systems.
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Beginner-Friendly Features
- Real-Time Detection → Identifies broken locators or shifted elements during runs.
- Automatic Updates → Adjusts test logic mid-execution without intervention.
- Minimal Setup → Works seamlessly in CoTester workflows.
Intermediate Capabilities
- UI Change Handling → Manages subtle shifts like color changes or repositioning.
- Execution Continuity → Prevents test failures, ensuring smooth CI/CD.
- Logging → Provides insights into healed changes for review.
Advanced Tools for Power Users
- Multimodal Analysis → Interprets screens, text, layout for complex redesigns.
- Guardrail Integration → Pauses for approval on critical heals.
- Enterprise Scale → Supports high-volume, mission-critical apps.
Latest Updates and Tools in AgentRx
AgentRx’s core advancements came in CoTester 2.0 (2025), with multimodal VLM and on-fly healing for major changes. 2026 focuses on stability enhancements and broader app support (e.g., ServiceNow, mobile).
It powers CoTester’s autonomous testing, with no separate access—available via TestGrid’s platform (demo-based pricing).
Real-World Use Cases: Enhancing Test Resilience
AgentRx excels in production environments.
- ServiceNow Testing → Maintains stability through platform updates/redesigns.
- Dynamic Web Apps → Heals locators in e-commerce sites with frequent UI tweaks.
- Enterprise Deployments → Fortune 100 firms reduce maintenance 70%, costs 40-60%.
- CI/CD Pipelines → Ensures zero flakiness in continuous testing.
- Mobile Automation → Adapts to OS/version changes.
Deployments highlight dramatic reductions in broken tests.
AgentRx vs Competitors: Leading in Adaptive Healing
AgentRx (via CoTester) competes with Mabl, Functionize, or traditional self-healing in Selenium.
Strengths: Handles full redesigns, multimodal perception, enterprise guardrails.
Vs others: More robust for major changes vs basic locator swaps.
Best for teams needing reliable automation in volatile apps.
AgentRx in the Broader Context: Future of Self-Healing QA
AgentRx advances agentic testing, making automation truly adaptive. In 2026, as releases accelerate, it enables faster delivery with maintained quality.
FAQ:
What is AgentRx and how does it work?
AgentRx is TestGrid’s self-healing engine in CoTester, using AI to detect UI changes during execution and update tests automatically.
What are the key features of AgentRx?
Real-time healing for locators, layouts, redesigns via multimodal analysis.
Is AgentRx available standalone?
No, integrated into CoTester; access via TestGrid.
How effective is AgentRx for major UI changes?
Detects and heals structural shifts/full redesigns on the fly.
How does AgentRx compare to other self-healing tools?
Superior for complex, enterprise-scale changes with visual understanding.
How to experience AgentRx?
Book a CoTester demo at testgrid.io.