MGRIntegrated DigitalpresentsYour AI said it passed.
Now prove it did.
AI agents delete failing tests, switch them off, and hard-code the answer — then report "all tests pass". Upload your project and BuildProof catches every trick, hunts hidden bugs, and signs a certificate you can verify.
// what it catches
Every shortcut that turns a test green
without fixing anything.
In a review of 40 changed files these are easy to miss. BuildProof checks each one on every change, by comparing your code before and after.
Deleted or skipped tests
A test case disappears, or turns into .skip / xit / @pytest.mark.skip.
Weakened assertions
The expected value is quietly edited to match the bug instead of the truth.
Hard-coded answers
The code returns exactly what the test checks for — if (amount === 1000) return 5.
Mocks over the real thing
New mocks replace the very function under test, so nothing real runs.
Silent catches & silenced checkers
Errors swallowed, or eslint-disable / @ts-ignore / # type: ignore added.
False claims
"All tests pass", "I added tests" — checked against what actually happened.
// how it works
Three steps to a signed proof.
No install, no agent on your machine. You send the work, we prove it in isolation, you get a certificate.
Upload or connect
Upload a .zip of your project, or connect your git repo so we can compare the commit before and after the AI.
Isolated sandbox
Your code runs in a locked container on our server — no network, strict limits — through every integrity rule and the bug hunter.
Signed certificate
Proven work gets an ed25519 certificate anyone can verify. Unproven work comes back with the exact reason. Then your code is deleted.
// your code is safe here
It runs on our server — and never stays.
Running on our side is what keeps our engine yours and proof tamper-proof. Here is exactly what happens to your code.
What we do with your code
No human ever opens it. Nothing is kept.
// tested, not promised
We tried to fool it on purpose.
Measured on our own benchmark projects. Your numbers depend on your project and tests.
// pricing
Less than an hour of chasing a fake fix.
Every plan starts with 14 days free, up to 2 projects. Cancel any time in PayPal.
Basic
- Test-integrity guard
- Hidden-bug hunter
- Signed certificates
- Revert + AI-claim check
- Unlimited projects (3 here)
- CI / pull-request checks
- Team dashboard + verify page
- Priority queue, SLA, SSO
Pro
- Test-integrity guard
- Hidden-bug hunter
- Signed certificates
- Revert + AI-claim check
- Unlimited projects
- CI / pull-request checks
- Team dashboard + verify page
- Priority queue, SLA, SSO
Team
- Test-integrity guard
- Hidden-bug hunter
- Signed certificates
- Revert + AI-claim check
- Unlimited projects
- CI / pull-request checks
- Team dashboard + verify page
- Priority queue, SLA, SSO
Enterprise
- Test-integrity guard
- Hidden-bug hunter
- Signed certificates
- Revert + AI-claim check
- Unlimited projects
- CI / pull-request checks
- Team dashboard + verify page
- Priority queue, SLA, SSO + audit
// questions
Good questions, honest answers.
Does my code leave my machine?
Yes — it goes to our server, runs fully isolated (no network access), is deleted the moment the check finishes, and is never read by a person. That isolation is also what keeps our own engine safe. See the security page.
Which languages and test runners?
Node and web projects (build, test, lint, typecheck — node:test, Jest, Vitest, Mocha) and Python (pytest, unittest, ruff, mypy). More on the way.
Can a certificate be faked?
No. It's signed with ed25519, so any edit breaks the signature. Anyone can check it against our public key, and re-run the checks on the code they received.
Will it block a legitimate test change?
An intentional change — a new requirement, say — is reported with the reason rather than silently failed, and the certificate records it. You stay in control.
What happens when the trial ends?
Nothing is deleted. Your past certificates stay verifiable; only new checks wait for a plan.
Stop trusting "done".
Start shipping proof.
Upload a project and get your first signed certificate in minutes.