Engineering Blog

Practical security and reliability write-ups from Aletheia Core release work.

2026-04-13

Signed Policy Manifests In Practice

How Aletheia Core uses Ed25519 signatures to enforce policy integrity and fail closed when configuration drifts.

securitypolicyed25519

2026-04-13

Defense In Depth For Agentic APIs

A practical layering model for pre-execution controls, semantic vetoes, and tamper-evident receipts.

agentsapi-securityaudit