Show HN: Runbooks – Shareable Claude Code Sessions (www.aviator.co)

Aviator’s Runbooks (Show HN) are shareable, Claude-driven "code sessions" that let engineering teams author, run and delegate multi-step automation workflows to background AI agents. Runbooks break big tasks into self-contained executable steps executed in a sandboxed environment, connect to existing CLI agents and build tools, and can run remotely or on your infrastructure. They automatically capture and update context from repos, PR reviews and past changes to form a living knowledge base. Each step can produce stacked GitHub PRs, accept review feedback, and be merged manually or via a MergeQueue; Runbooks can be picked from a library, published, or created via a simple chat interface. For AI/ML teams and developer-experience engineers this is significant: it standardizes and scales AI-assisted development across codebases while preserving control and auditability. Technical implications include reproducible debugging workflows (converting stack traces into root-cause Runbooks), large-scale refactoring via pattern-matching transformation rules, automated test generation with scoped/excluded paths, and CI/build-performance tuning through systematic pipeline analysis. The platform’s stepwise execution model and self-host option support safer delegation, governance, and compliance, while the community "Hangar" enables sharing vetted Runbooks and DX best practices—accelerating velocity and reducing repetitive engineering toil without sacrificing review controls.