The E2E validation layer for agent-built software

Ship with confidence at agent speed.

Coding agents produce software faster than humans can verify it. Clanker Test turns human intent into end-to-end test cases, binary results, and evidence your team can act on.

Start validating See how it works

Built for PMs and QA Pass/fail, not vibes Evidence agents can use

The shift

Building got cheap. Verification didn’t.

Coding agents can generate features at a pace humans never could. But they still can’t read our minds. Someone has to prove the product behaves the way the team intended.

Static analysis and code review check the how. Clanker Test verifies the what—the complete system, running end to end, against a human-readable contract.

Code generation

Accelerating

Manual verification

The bottleneck

How it works

From human intent to verified software.

Test cases are the contract. Every run returns a crisp answer and the context needed to move forward.

Specify the what

Generate test cases from PRDs, import existing suites, or write the expected behavior directly.

Run validation agents

Validate in CI, on demand, or continuously against production, beta, and development environments.

Close the loop

Hand failure packets to coding agents so they can reproduce, understand, and fix what broke.

Evidence, not opinions

A failure your agents can actually fix.

Every result carries human-legible proof: video, screenshots, error messages, and a step-by-step account of what happened.

Video replay of the full flow
Screenshots at critical steps
Errors and exact failure context

Checkout — returning customer

Failed

Payment authorization timed out

00:18 Step 6 of 8

Failure packet

Cart opened

Expected state confirmed

Address submitted

Form accepted

Payment completed

Timed out after 8.2s

Ready to send to your coding agent with screenshots, console output, and reproduction steps.

Run anywhere

Validation that keeps pace with generation.

In CI

Block regressions before agent-written code reaches production.

On demand

Launch a run yourself or let a coding agent invoke validation.

Continuously

Monitor critical flows across production, beta, and development.

The winning teams verify faster

Prove the product works.
Then ship it.

Give PMs and QA the leverage to supervise software at agent speed—and give coding agents the evidence to fix failures fast.

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