pluginsdk/README.md
Alex Dunmow 52f6c62fd3 docs: correct PageDocument contract description; drop stale chrome/sync sections
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-07 13:36:25 +08:00

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# block/pluginsdk
The **plugin-facing SDK** for BlockNinja CMS plugins. Plugins import THIS module,
never the first-party `core` module.
## What lives here
- **`abi/proto/v1/`** — THE single source-of-truth ABI proto tree for the wasm
plugin contract. The wire between host and guest is proto-only; any language
can generate its own bindings from these `.proto` files. (This tree used to be
duplicated by hand in `cms/backend/abi` and `core/abi`; it now lives here once.)
- **`abi/v1/`** — the generated Go bindings (`abiv1`). Regenerate with `make proto`.
- **`plugin/`** — the Go registration + DI surface (`PluginRegistration`,
`CoreServices`/`ServiceDeps`, block/template registries) and the minimal Go
wasm transport shim under `plugin/wasmguest/` (exports, dispatch, hostcalls,
context rehydration), its capability stubs (`plugin/wasmguest/caps/`), and the
`database/sql` driver over the host DB (`plugin/wasmguest/bnwasm/`).
- **Guest-facing type packages** plugins consume: `blocks/` (incl. `blocks/builtin`,
`blocks/shared`, `blocks/tags`), `templates/` (the template registry + types,
including `PageDocument` — the body-plus-envelope contribution a full-page
template makes; the host owns the chrome), `auth/`, `settings/`,
`content/`, `gating/`, `crypto/`, `rbac/`, `video/`, `ai/`, `subscriptions/`,
`menus/`, `datasources/`.
The Go surface here is **one language binding**. The proto tree is the contract:
a non-Go plugin implements the ABI hooks directly and never sees the Go structs.
## Rules
- **NEVER use `replace` directives** in `go.mod`. Module resolution goes through the
Gitea module proxy — to test local changes, tag and push a version.
- All consumers are in-house — **no backwards-compatibility shims**.
- Plugins import `block/pluginsdk/...`, never the first-party `core` module.
## Design
Program spec (in the cms repo):
`docs/superpowers/specs/2026-07-07-proto-first-plugin-sdk-design.md`.