Nexural QA OS — Signed-Evidence Runner Fleet

QA infrastructure for a 39-repo product federation — an 85-runner fleet that signs its evidence and refuses unearned greens.

Topology: an 85-runner fleet feeds a DAG orchestrator, whose runs are packaged by a hash-chain evidence signer (Ed25519-capable) and validated by the qa verify trust command. In parallel an autonomous SDET loop drives a 52-to-91-percent coverage ratchet; both paths terminate in the full-fleet CI gate.

PROBLEM

An 85-runner QA fleet could return green while doing zero work — its evidence was unverifiable terminal scroll.

BUILT

Every runner now emits hash-sealed evidence bundles (Ed25519 signing built in), `qa verify` validates any run directory, and an autonomous SDET loop generates passing tests.

runners registered in the fleet: 85
measured line coverage: 52→91%
tests behind ratcheting thresholds: 3,698
false-green honesty bugs fixed: 11

FAILURE MODES

Runners returning green, doing nothing
Evidence tampering
Hangs counted as passes
Silent coverage rot

EVIDENCE — REAL ARTIFACTS, CAPTURED FROM DISK

HIRE ME FOR THIS →← ALL WORK