# Core SDK

Go module `git.dev.alexdunmow.com/block/core`. Defines plugin interfaces, template engine, block registry, and shared types for the BlockNinja CMS.

## Critical Rules

- **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.
- Plugins import from core only — never from the CMS (`blockninja/backend`) or orchestrator.
- All consumers are in-house — no backwards compatibility shims needed. Just change the API and update consumers.