> For AI agents: the complete documentation index is available at /llms.txt, the full documentation bundle is available at /llms-full.txt.

# Shared standards

Language-independent rules for engineering decisions, review, documentation, and agent context.


[EngineeringKeep domain logic pure and effects behind resource-owning adapters. Covers focused changes, immutable state, errors as values, dependency evaluation, meaningful comments, and behavioral testing.](/packs/shared/engineering)[GitMake each change understandable in history and review. Covers scoped commits, useful commit messages, focused pull requests, and accurate verification evidence.](/packs/shared/git)[DocumentationChoose a page shape from the reader's task. Covers writing, portable Markdown, diagrams, standards, guides, quick starts, tutorials, references, troubleshooting, and runbooks.](/packs/shared/documentation)[Agent instructionsGive coding agents a short operating contract and a route to the right context. Covers repository instructions, canonical rule ownership, and reading order across installed packs.](/packs/shared/agent-instructions)