Working principles

The standard behind the public work.

These principles connect implementation decisions with operations, security, documentation, and review.

Engineering practice

Useful defaults for serious systems.

Every principle should be visible in a pull request, architecture note, interface, or operational decision.

01

Make work inspectable

Keep important decisions close to the code and leave enough context for another engineer to review them.

02

Prefer small, reversible changes

Reduce risk with narrow steps, useful checkpoints, and a clear way back.

03

Treat operations as design input

Plan for failure, visibility, ownership, and recovery before a system reaches production.

04

Automate the repeatable boundary

Use automation to make good behavior easier, while keeping consequential decisions understandable.

05

Write for the next engineer

Documentation is part of the product when it helps someone operate, change, or question the system.

06

Label uncertainty honestly

Separate a working system from a prototype, a product concept, or a research note.

Collaboration

What another engineer can expect.

Direct communication, visible work, practical tradeoffs, and no manufactured certainty.

01

Context

Clarify the system, constraint, audience, and definition of done.

02

Evidence

Inspect what exists before proposing a new tool or abstraction.

03

Build

Ship reviewable increments with reasoning and validation attached.

04

Handoff

Leave the code and explanation in a condition another engineer can own.

See the principles in practice

Review the engineering work.