test-regression-runner Connector for AI agents.
3 live capabilities
Automate targeted regression testing and detect flaky code
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Why people use test-regression-runner
Stop wasting time with test-regression-runner automated testing
With this MCP, you stop guessing. Your agent identifies the exact tests that care about your changes and runs them immediately. You get a clear answer on whether your code is safe without the wait.
What Vinkius changes
You stop running unnecessary tests and start catching regressions instantly.
Use it from Claude, ChatGPT, Cursor or another AI client you already have.
One account · 6,100+ Connectors
- Real-world use case 01
Rapid local verification
A developer modifies a core utility and asks their agent to run only the tests impacted by that specific file to save time.
- Real-world use case 02
Debugging flaky tests
An engineer notices a test failing intermittently and uses the MCP to compare recent runs against the baseline to confirm flakiness.
- Real-world use case 03
Post-refactor validation
After a large refactor, a user checks for regressions to ensure that the logic changes didn't break existing functionality.
Complete set · 3capabilities
The complete test-regression-runner capability set.
These are the exact actions your AI can choose when you ask it to work with test-regression-runner.
01—03
3 capabilities in this set.
Part of 3 available through test-regression-runner.
- 01 Capability
Analyze regression differences
Compares current test results against the baseline to find specific failures. It helps you see exactly what changed between runs.
- 02 Capability
Get test baseline
Fetches the results from the last successful test run. This provides the reference point needed to detect regressions.
- 03 Capability
Run targeted tests
Triggers only the tests that are affected by your code changes. This avoids the waste of running an entire test suite.
Set up in minutes
One URL. Then ask test-regression-runner to work.
Claude and ChatGPT only need the Connector URL. Copy it once, add it in settings, and use test-regression-runner from the conversation.
Choose your client
Live previewAdvanced clients IDE · CLI
Claude · Web + desktop
Connector URL · ready to paste
Streamable HTTPhttps://edge.vinkius.com/vk_preview_FUTu0rNg9ewlNxeYf3VMM26Dw5zkdRvD4N14LHYB/mcp - Step 01
Open Connectors
In Claude Web or Claude Desktop, open Settings and choose Connectors.
- Step 02
Add the URL
Choose Add custom connector, name it test-regression-runner, and paste the URL above.
- Step 03
Turn it on in chat
Select +, open Connectors, and enable test-regression-runner for the conversation.
ChatGPT · Web + desktop
Connector URL · ready to paste
Streamable HTTPhttps://edge.vinkius.com/vk_preview_FUTu0rNg9ewlNxeYf3VMM26Dw5zkdRvD4N14LHYB/mcp - Step 01
Open MCP settings
On desktop, open Settings and MCP servers. On web, open your workspace app or connector settings.
- Step 02
Add the URL
Choose Add server with Streamable HTTP, or create a custom MCP app, then paste the test-regression-runner URL.
- Step 03
Save and start
Save the connection and enable test-regression-runner in your conversation. Desktop may ask you to restart once.
Cursor · IDE configuration
Advanced setup
{
"mcpServers": {
"test-regression-runner": {
"url": "https://edge.vinkius.com/vk_preview_FUTu0rNg9ewlNxeYf3VMM26Dw5zkdRvD4N14LHYB/mcp"
}
}
}- Step 01
Open MCP Settings
Press Cmd+Shift+P (macOS) or Ctrl+Shift+P (Windows/Linux) → search "MCP Settings"
- Step 02
Add the server config
Paste the JSON configuration above into the mcp.json file that opens
- Step 03
Save the file
Cursor will automatically detect the new Connector
- Step 04
Start using test-regression-runner
Open Agent mode in chat and ask: "Using test-regression-runner, help me...". 3 tools available
VS Code Copilot · IDE configuration
Advanced setup
{
"mcpServers": {
"test-regression-runner": {
"url": "https://edge.vinkius.com/vk_preview_FUTu0rNg9ewlNxeYf3VMM26Dw5zkdRvD4N14LHYB/mcp"
}
}
}- Step 01
Create MCP config
Create a .vscode/mcp.json file in your project root
- Step 02
Add the server config
Paste the JSON configuration above
- Step 03
Enable Agent mode
Open GitHub Copilot Chat and switch to Agent mode using the dropdown
- Step 04
Start using test-regression-runner
Ask Copilot: "Using test-regression-runner, help me...". 3 tools available
Windsurf · IDE configuration
Advanced setup
{
"mcpServers": {
"test-regression-runner": {
"url": "https://edge.vinkius.com/vk_preview_FUTu0rNg9ewlNxeYf3VMM26Dw5zkdRvD4N14LHYB/mcp"
}
}
}- Step 01
Open MCP Settings
Go to Settings → MCP Configuration or press Cmd+Shift+P and search "MCP"
- Step 02
Add the server
Paste the JSON configuration above into mcp_config.json
- Step 03
Save and reload
Windsurf will detect the new server automatically
- Step 04
Start using test-regression-runner
Open Cascade and ask: "Using test-regression-runner, help me...". 3 tools available
Cline · IDE configuration
Advanced setup
{
"mcpServers": {
"test-regression-runner": {
"url": "https://edge.vinkius.com/vk_preview_FUTu0rNg9ewlNxeYf3VMM26Dw5zkdRvD4N14LHYB/mcp"
}
}
}- Step 01
Open Cline MCP Settings
Click the Connectors icon in the Cline sidebar panel
- Step 02
Add remote server
Click "Add Connector" and paste the configuration above
- Step 03
Enable the server
Toggle the server switch to ON
- Step 04
Start using test-regression-runner
Ask Cline: "Using test-regression-runner, help me...". 3 tools available
Claude Code · Terminal command
Advanced setup
claude mcp add test-regression-runner --transport http "https://edge.vinkius.com/vk_preview_FUTu0rNg9ewlNxeYf3VMM26Dw5zkdRvD4N14LHYB/mcp"- Step 01
Install Claude Code
Run npm install -g @anthropic-ai/claude-code if not already installed
- Step 02
Add the Connector
Run the command above in your terminal
- Step 03
Verify the connection
Run claude mcp to list connected servers, or type /mcp inside a session
- Step 04
Start using test-regression-runner
Ask Claude: "Using test-regression-runner, show me...". 3 tools are ready
Where the request belongs
Work test-regression-runner can move forward.
This is for engineers who are tired of waiting for massive CI pipelines to finish just to find out a single change broke a distant module.
Software Engineer
Verifies local changes quickly before pushing to a remote repository.
DevOps Engineer
Monitors test health and identifies flaky suites that disrupt deployment pipelines.
QA Automation Engineer
Uses historical baselines to ensure regression suites remain stable and relevant.
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Bring your own AI
Change the model, client or framework. Keep test-regression-runner connected.
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Claude -
ChatGPT -
Gemini -
Cursor -
VS Code -
Windsurf -
ZCode -
Cline -
Zed -
Continue -
Kiro -
Roo Code -
Zencoder -
Goose -
Void -
Augment Code -
Amp -
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Tabnine -
Pieces -
Sourcegraph Cody -
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Amazon Q -
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Jan -
LM Studio -
AnythingLLM -
Open WebUI -
Msty -
Cherry Studio -
LibreChat -
TypingMind -
Chorus -
5ire -
n8n -
LangChain -
LlamaIndex -
CrewAI -
Vercel AI SDK
Before you connect
Questions about test-regression-runner.
The practical details behind the request, access and result.
How does test-regression-runner speed up my testing?
It identifies only the specific tests impacted by your code changes, so you don't have to wait for a full, massive test suite to finish every time you make an edit.
Can I use test-regression-runner to find flaky tests?
Yes. By comparing current test results against a historical baseline, the MCP can detect non-deterministic failures that pass sometimes and fail others.
Does test-regression-runner work with any testing framework?
As long as your testing environment can be triggered via your AI client, this MCP can manage the execution and comparison of those test results.
How does test-regression-runner handle new bugs?
It compares your current run to the last successful baseline. If a test that used to pass now fails, it flags it as a new regression immediately.
Can I use test-regression-runner in my local development workflow?
Absolutely. You can connect it to your AI client in Cursor or VS Code to verify your local changes before you ever push your code to a repository.
How does targeted testing work?
The system maps modified source files to their corresponding test files using naming conventions, ensuring only relevant tests are run via run_targeted_tests.
What is a regression in this context?
A regression is a failure in a part of the system that was previously working, identified by comparing the current run against a baseline.
How can I detect flaky tests?
You can use analyze_regression_differences to identify patterns where tests pass and fail inconsistently without code changes.
One connection away
Give your agent a direct line to test-regression-runner.
Connect test-regression-runner once. Keep it beside 6,100+ managed Connectors when the next task needs more.
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