QA after the coding session
Your coding agent is done. Now test what it shipped.
Langoustine runs browser-based QA after implementation. Connect it to your release workflow and it tests staging or production independently, returning findings, reproduction steps, screenshots, and video.
Linear
Ready for QA
Langoustine
Browser run
Handoff
Report returned
Error message "Invalid ZIP" appears briefly but disappears after 500ms. UX friction confirmed.
expect(button).toBeVisible(); // PASS expect(title).toHaveText("Success"); // PASS // logic is sound, but...
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Visual Regression
Button is visible but overlaps the headline on mobile resolutions.
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UX Friction
"Success" message disappears before user can read it.
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Logical Ghosting
Modal closes when clicking outside, losing 10 minutes of input data.
Use it alongside your existing test suite.
Scripts are good at protecting behavior you already know about. Langoustine adds an exploratory browser session for flows that benefit from another set of eyes.
No test scripts
Describe the outcome you care about instead of maintaining another scripted journey.
Reviewable evidence
Each finding is tied to what happened in the browser, with steps and recorded evidence.
Interface
Define the handoff once. Review every run.
A configured Linear status change can start testing after implementation, independently of an engineer's coding session. You can also start from the web app or mention Langoustine in a GitHub comment.
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Set a clear goal. Name the flow, expected outcome, and anything that should remain untouched.
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Follow the run. See the current intent and completed browser steps as they are recorded.
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Inspect the result. Review findings, screenshots, video, and explicit non-coverage.
Test the sign up flow
I'll test the sign up form with invalid and valid data, check error handling, and verify the confirmation email gets delivered.
Langoustine · starting run
Fits the release workflow
Put browser QA at the handoff between implementation and release.
Start when the work is ready
A configured Linear status change can start testing without an engineer opening another agent session. In GitHub, mention Langoustine in an issue or review comment.
Return findings to the thread
Reports return to the originating Linear issue or GitHub conversation, with links to the full evidence.
Keep the context attached
The original request, run progress, and final result remain connected instead of moving into a separate testing queue.
Integration Workflow
How Langoustine Works
Connect the Environment
Point Langoustine to a staging or production endpoint that it can reach. No application code changes are required.
Choose the Handoff
Configure a Linear status to start testing when work reaches QA, or request a run from the web app or a GitHub comment.
Independent Browser Run
After the handoff, Langoustine works through the flow in Chromium without depending on the engineer's coding session.
Return the Evidence
The completed report includes findings, reproduction steps, screenshots, video, and explicit non-coverage. Integration-triggered results return to their original thread.
Persistent project context
Each run leaves the next one
better prepared.
Before testing, Langoustine reads the project workspace. When it encounters a stable project fact during a run—such as a navigation path, test account, setup detail, or intended behavior—it records it so later runs can use it automatically. Your team can review and edit this context at any time.
Reads before testing
Every run checks the existing project documentation before taking its first browser action.
Records stable facts
Langoustine saves useful routes, setup details, and product conventions instead of rediscovering them later.
Remains reviewable
The accumulated context is ordinary project documentation your team can inspect, edit, or correct.
What it reviews
Evidence for exploratory findings.
Langoustine combines browser state, page structure, screenshots, and the goal you supplied. Findings remain suggestions for a person to review.
Visual Regressions
Flags visible overlap, broken layouts, and inconsistent presentation encountered during the run.
UX Friction
Records confusing flows, missing feedback, and interactions that make the requested outcome difficult.
Edge-Case Logic
Exercises state changes and form validation around the requested flow.
A11y Constraints
Can flag missing labels and keyboard blockers encountered in the tested flow.
Email Flow Testing
A project receives test emails such as confirmations and password resets, so Langoustine can continue the requested flow.
Step-by-Step Video
Browser video and screenshots let you inspect what happened alongside the written report.
A different place in the workflow
Your coding agent helps build it.
Langoustine checks what was delivered.
Give it one important flow.
Start with a limited trial. Use Langoustine alongside the tests and review practices you already trust.
No payment method required