CoTester

CoTester is an AI agent designed to automate the testing of enterprise applications. The tool independently creates, runs, and updates automated tests, adapting to changes in the product's interface and logic. CoTester addresses a key challenge in modern development — the constant need to manually maintain regression tests, which grows with every new release and UI change.

The solution is positioned as an always-available virtual colleague for QA teams and developers. Instead of spending hours updating locators and scripts after every interface change, engineers can delegate this routine work to the AI agent. CoTester handles not only test generation but also their "self-healing" — that is, automatically fixing tests when they diverge from the product's current state.

According to the developers, CoTester is the world's first AI agent designed specifically for software testing. It is not a standalone tool for writing individual checks, but a full-fledged system that accompanies test scenarios throughout their entire lifecycle.

CoTester Features

Feature	Value
Type	AI agent for automated testing
Category	Testing and test cases, Code review and quality
Platform	Web (testgrid.io)
Free tier availability	Not specified
Target audience	QA engineers and developers working on complex enterprise applications
Key feature	Self-healing of automated tests when the interface changes

Who is CoTester suitable for?

QA engineers working with regression testing

CoTester is designed for professionals who deal with the daily need to maintain large sets of automated tests. For teams where manually updating scripts takes up a significant portion of working time, this tool allows shifting focus from routine maintenance to more strategic tasks — such as expanding test coverage or analyzing the most critical business scenarios.

Enterprise product developers

Developers who combine writing code with maintaining tests also benefit from CoTester. When the application interface changes frequently and releases come out regularly, automatic updates of locators and scripts reduce the cognitive load on the engineer and decrease the number of distractions during the development process.

Teams working on large and complex applications

The more branched the product logic, the harder it is to keep the test base up to date. CoTester is aimed at industrial testing — its capabilities are designed for enterprise applications with a large number of screens, states, and user scenarios.

How to use CoTester?

Launch and initial setup

CoTester is available through a web interface on the testgrid.io platform. The first step is connecting the application under test and configuring the environment. After that, the AI agent begins analyzing the interface structure and application logic.

Test generation and maintenance

CoTester independently generates automated tests based on application analysis. After the first run, the agent monitors the state of the tests and, when it detects UI changes, automatically updates locators and scripts. No engineer intervention is required for each update — the system works in the background.

Analysis of test run results

After each run, CoTester analyzes the results and refines scripts as needed. This means the engineer does not have to manually review every failed test to determine whether it is a real product defect or an outdated locator. The AI agent handles initial diagnostics and makes corrections on its own.

Core CoTester functions

Creating automated tests with AI

CoTester generates test scenarios automatically based on analysis of the application's interface and logic. This allows teams to quickly increase test coverage without having to write every test manually.

Self-healing tests

CoTester's key function is the ability of tests to adapt to interface changes. When controls or page structures change in the product, the AI agent independently updates locators and adjusts scripts.

Automatic updates when the UI changes

With every interface change, CoTester not only records discrepancies but immediately applies fixes to the test base. This reduces the number of false failures and cuts down the time spent on manual maintenance.

Test result analysis

CoTester analyzes run results, identifies problem areas, and refines scripts to improve stability. Instead of dry failure reports, the engineer gets information about what was fixed and why.

CoTester advantages

Reduced manual regression maintenance

The main effect of using CoTester is a significant reduction in manual work required to keep regression tests up to date. Teams spend their time not on updating scripts but on product development.

Fewer false failures

Thanks to automatic updates of locators and scripts, CoTester reduces the number of false positives caused by interface changes rather than actual product defects.

An always-available virtual colleague

CoTester works as a virtual colleague that is always available to run and update tests. There is no need to wait for an engineer to free up and shift their attention to the test base.

Maintaining quality as the codebase grows

With active development and frequent releases, CoTester helps maintain a stable level of quality by automatically adapting tests to the changing product.

CoTester limitations

Information about CoTester's limitations is not available in public sources. It can be assumed that enterprise solutions require significant resources for implementation and configuration, and also involve a subscription with a corresponding price, but there is no exact data on the tool's restrictions and weaknesses in available materials.

What problems does CoTester solve?

Automating testing of complex enterprise applications

CoTester is designed to work with enterprise applications where manual testing is difficult due to the large number of scenarios, roles, and system states.

Maintaining automated test stability during UI changes

One of the main problems during active development is test failures caused by interface changes. CoTester solves this through self-healing of locators and scripts.

Reducing dependence on manual regression testing

Automation combined with self-healing reduces the share of manual regression testing and allows routine processes to be delegated to the AI agent, freeing up engineers' time.

Reducing automated test flakiness

CoTester reduces flakiness — test instability that is not related to actual product defects. Automatic analysis and script refinement make test runs more predictable.

CoTester pricing

Information about CoTester's cost is not available in public sources. The availability of a free tier is also not specified. For current pricing offers, you need to contact the testgrid.io team directly.

CoTester terms of use

The exact terms of use for CoTester, including environment requirements, the volume of tested code, and corporate security policies, are not disclosed in available sources. Since the tool is positioned as an enterprise solution, terms are likely negotiated individually with each customer.

CoTester availability

CoTester is available as a web solution on the testgrid.io platform. This means browser access is required to work with the tool. Additional information about regional availability and client infrastructure requirements is not presented in public sources.

How CoTester differs from alternatives

Focus on test self-healing

The main difference between CoTester and most test automation tools is its built-in self-healing capability. Many alternatives require manual intervention when the UI changes, whereas CoTester automatically adapts the test base.

Focus on enterprise applications

CoTester is designed for industrial enterprise products with branched logic. It is not a tool for simple web pages, but a solution that must handle the complex scenarios typical of enterprise development.

The role of a virtual colleague, not just a tool

Unlike classic test automation systems, CoTester is positioned as an always-available agent that does not simply execute tests but accompanies them throughout their entire lifecycle — from generation to updating them in line with product changes.

Conclusion

CoTester is an AI agent for industrial testing, aimed at large enterprise products with branched logic. It helps automate the creation and maintenance of automated tests, making them resilient to interface changes, which reduces the burden on QA engineers and developers. The tool's key value lies in reducing the volume of manual regression testing maintenance and decreasing false test failures. At the same time, questions about pricing and implementation terms remain open and are likely resolved individually for each customer.