DEV SITE — deployed from the dev branch · NOT production · production is falsegreen.com

FalseGreen Job

Build correct Rust programs fast.

Your AI coding agent writes the code. FalseGreen verifies it in minutes.

What a FalseGreen Job does

Faster AI coding — and the rigor to prove it holds.

Freezes your goal

Your requirements become a locked definition of done — before anyone grades the work.

Keeps your AI coding agent on plan

No drift, no scope creep, no moving goalposts. The AI coding agent works toward one frozen target.

Runs what matters

Real release build. Your full test suite. Lints and formatting. Five security checks. Formal proofs where the Job freezes them.

Delivers a verdict

Accepted, Failed, or Insufficient — with a report showing the evidence behind it.

Speed

From code to verdict in minutes.

3,342 lines of Rust

The open-source FalseGreen Ledger, verified as one whole program — not a snippet.

89 packages

Every dependency resolved and built in release mode on a clean machine, from your exact source bytes.

4 criteria + 2 proofs

Build, full test suite, clippy with warnings as errors, formatting — plus a Kani model check and a 4/4-goal Why3 proof over its core rule.

93.5 seconds

Clean machine to verdict, first attempt. The same Job, re-run free, is still one price.

Security

Five mandatory security checks

  • ✓Vulnerable dependencies
  • ✓Secrets in your code
  • ✓Insecure code patterns
  • ✓Undeclared components
  • ✓Your licence terms

See what the report carries →

How it ends

Two verdicts. Both useful.

When it passes

You keep a report anyone can re-check.

  • ✓ The verdict and the evidence for each requirement
  • ✓ Security findings and machine proofs
  • ✓ A signature anyone can verify offline, at any time

See what a report contains →

Requirements in. Verified Rust out.