Non-negotiables (ADR-0001)

1. @agentskit/os-core stays ultralight. Contracts + event bus + workspace model only. Zero LLM/UI deps. <15 KB gzipped.
2. Never duplicate AgentsKit. Import core, runtime, adapters, memory, tools, skills, observability, sandbox, RAG, eval as deps. OS = thin layer.
3. Every public package independently installable. Use one piece without the desktop. (See distribution tiers — bundled-private packages ship inside the desktop bundle, not on npm.)
4. Strict TS, no any. Zod at every boundary. Named exports only.
5. ADR before architecture. RFC before breaking contracts. Public process.
6. SemVer strict. Backward-compat within a major.
7. Native security + observability. Sandbox, audit log, trace viewer not optional.
8. Self-host day 1. Air-gap supported. MIT.

Source: ADR-0001.