## Summary - Make MCP discoverable from the CLI README and expose direct MCP tool calls as restart-free CLI subcommands. - Preserve required discriminator fields in compact MCP SDK schemas and surface the `set-text-content` contract. - Return instance props by default from `inspect-instance` and improve the `list-instances` input hint. - Add a Builder context-menu **Move** submenu as an accessible alternative to drag-and-drop sibling reordering. Companion generated documentation: https://github.com/webstudio-is/webstudio-community/pull/274 ## Technical choices and compatibility - Compact SDK schemas retain required fields only inside root composition branches, avoiding broad schema expansion. - `inspect-instance` now defaults to `props` only; larger styles, bindings, sources, children, and ancestors remain opt-in. - Existing move commands and shortcuts back the new menu, so command behavior stays centralized. - No migrations, fixture inputs, generated fixture bundles, or generated API contracts are affected. ## Todo - [x] Add direct CLI MCP discovery and restart guidance. - [x] Preserve discriminated-union requirements for SDK clients. - [x] Improve instance inspection and input diagnostics. - [x] Add accessible menu-based instance movement. - [x] Add regression coverage and verify fail/pass behavior. - [x] Run targeted tests, typechecks, lint, package-boundary, and generated-doc checks. - [ ] Deferred: run `pnpm evaluations` after separate explicit approval, as required by repository policy. ## Verification - `@webstudio-is/project-build`: 172 targeted tests passed. - `@webstudio-is/protocol`: 8 targeted tests passed; typecheck passed. - `@webstudio-is/builder`: 8 targeted tests passed; typecheck passed. - CLI and project-build typechecks passed. - Root lint, package-boundary check, generated-doc check, and diff checks passed. - New and modified regression tests were demonstrated failing before their fixes and passing afterward. ## Known limitations Synthetic drag-and-drop behavior is unchanged. The new menu and existing keyboard shortcuts provide the automatable and accessible reordering path. Agent evaluations were not run because explicit approval was not provided.
Protocol
@webstudio-is/protocol owns Webstudio data exchange protocols.
The project bundle is the external export/import artifact used by sync, local
.webstudio/data.json, project import, transferred asset files, and prebuild.
This package owns the assembled bundle schemas, transfer RPC payloads, and
bundle compatibility/version helpers.
Domain models such as pages, assets, and serialized builds remain owned by their domain packages and are composed here through schema-only entrypoints. Do not copy those schemas into this package.
Terminology
Project bundle is the authoritative external project artifact. It is used by
sync, .webstudio/data.json, project import, transferred asset files, and
prebuild.
Data envelope is a serialized single-key object whose key is a versioned
Webstudio marker, for example { "@webstudio/instance/v0.1": data }. The
envelope identifies the payload version and lets consumers detect malformed
Webstudio-owned data before falling back to other formats.
Transfer data is the domain payload inside a data envelope. Examples include
InstanceTransferData, InstancesTransferData, and PageTransferData.
Transfer data is portable and detached from a project; insertion/import remaps
ids and merges it into authoritative project state. Runtime-owned transfer
formats live in @webstudio-is/project-build/transfer.
Clipboard data is a UI transport concern. Builder copy/paste may serialize transfer data into a data envelope and place it on the browser clipboard, but runtime and protocol code should name the reusable format as data envelope or transfer data, not clipboard.