v1.0.0 — Principal Engineer OS

Principal Engineer OS v1.0.0

Principal Engineer OS is a reusable agent skill for applying practical principal-engineer judgment to software work.

What is included

• A compact operating model for correctness, security, reliability, architecture, and cost.
• Workflows for system design, repository bootstrap, feature implementation, code review, refactoring and debugging, production readiness, and incident response.
• Focused references for distributed systems, APIs and data, security and privacy, reliability and observability, testing and delivery, language-specific hazards, and AI-agent engineering.
• Reusable artifacts for ADRs, system-design RFCs, and production gates.
• A read-only validator and regression tests for the skill package.

Validation

python3 scripts/validate-skill.py

Included archive

principal-engineer-os-v1.0.0.zip

Feedback

This is an early public release. Please try it in real workflows, open issues with concrete examples, and contribute improvements where you see gaps.