Weak tests are not assurance. Securie writes regression, property-based, mutation, and contract tests that lock real intent.
Auto-generated test fleet across 7 modalities: unit, property-based, mutation, regression, contract, snapshot, integration. Every Securie-shipped fix carries a regression test that proves the fix works AND prevents the bug from recurring under refactor.
Teams inherit tests that pass against yesterday's implementation, not today's real intent. The result is a test suite that compiles but covers nothing meaningful. The mutation-quality gate Securie uses (>=0.8) catches that — a test that fails to detect injected bugs is not a test.
The intent-vs-test generator extracts what the code is supposed to do, then synthesizes tests that lock it in. Every test passes the mutation-quality gate (≥0.8 kill rate) before it ships.
Every fix PR ships with a regression test that re-creates the original bug in a sandbox, confirms the fix kills it, and proves the bug stays dead across future refactors.
Coverage-guided fuzz across 14 languages (libFuzzer / AFL++ / cargo-fuzz / atheris / Jazzer / go-fuzz). Discovered crashes ship as fix PRs with the crash-reproducing seed in-tree.
Coverage measures what code runs in tests; mutation-quality measures whether tests actually catch bugs. Securie optimizes for the latter — coverage is a lagging indicator.
Securie generates tests in your existing framework (jest / vitest / pytest / cargo test / etc.). It doesn't replace the harness; it fills the test suite.