# Core SDK

Go module `git.dev.alexdunmow.com/block/core`. Shared Go code between the **CMS and the orchestrator** — template engine, block registry, shared types, proto definitions.

## Critical Rules

- **Core is NOT for plugins.** Its only consumers are the CMS and the orchestrator; it exists purely to share code between those two. Plugins must not import `block/core` — in the wasm-plugin era they are standalone artifacts built against the wasm ABI, not this module. (Core was previously the plugin SDK; that role is gone.)
- **NEVER use `replace` directives in go.mod** — not in this repo, not in any consumer. All module resolution goes through the Gitea module proxy. If you need to test local changes, tag and push a version.
- All consumers are in-house — no backwards compatibility shims needed. Just change the API and update consumers.