## Summary
- Keep the shared content-model validator strict during normal Builder
authoring.
- Report HTML and component nesting violations as publish warnings
instead of blocking legacy projects.
- Allow paste operations to retain violations already contained inside
legacy fragments and surface them as warnings.
- Continue rejecting new violations introduced at the paste destination
boundary.
- Remove obsolete empty content models from CodeText and Video so their
runtime-supported, HTML-valid children pass validation.
## Root cause
The new pre-publish audit applied current authoring constraints to
historical project trees. Some legacy structures, including old
Accordion triggers containing an h3 inside a button, were created by
earlier Webstudio templates and cannot satisfy the current HTML model
without migration. Blocking publish or paste would make untouched legacy
content unusable.
CodeText and Video also had metadata that rejected children their
renderers intentionally support. Those verified metadata mismatches are
corrected independently of the compatibility policy.
## Behavior
- New invalid nesting remains prevented by normal authoring operations.
- Existing invalid nesting produces a Publish warning and does not abort
publishing.
- Webstudio instance, HTML, JSX, and Webflow paste retain
fragment-internal violations and show a paste warning.
- Paste still validates the destination and cannot introduce a new
invalid parent-child relationship.
- Resource integrity and missing audit inputs still prevent publishing.
## Verification
- [x] Legacy button containing h3 reports a publish warning
- [x] Legacy invalid subtree pastes successfully with a warning
- [x] New paste destination violations remain rejected or use the
closest valid target
- [x] Valid legacy CodeText children pass validation
- [x] Valid Video source and track children pass validation
- [x] Project-build matcher and insert-target tests
- [x] Builder instance, HTML, JSX, and Webflow paste tests
- [x] Project-build and Builder typechecks
- [x] Focused oxlint and formatting checks
- **Restore points for agent work**: Create named restore points before
major edits, review changes with a dry run, and safely revert project
content if needed.
- **Shared Slot authoring**: Agents can turn existing sections into
shared Slots and insert linked copies across pages, including valid
nested Slots.
- **DTCG and Figma token imports**: Import design tokens and CSS
variables through CLI, MCP, or direct paste, with aliases, modes,
composite values, and mappings supported.
- **Consistent token conflict handling**: Every paste workflow now
offers the same preserve, rename, or merge choices instead of silently
overwriting existing design tokens.
- **Draft-page previews**: Agents can generate and inspect previews of
draft pages without publishing them or exposing drafts in production
builds.
- **Safer MCP mutations**: Destructive operations require explicit
confirmation, invalid raw patches and invented record IDs are rejected,
and restore operations commit atomically.
- **More dependable agent contracts**: New tools have complete runtime
schemas, clearer validation errors, and consistent behavior across CLI,
MCP, Builder, and server APIs.
## Summary
This improves how agents discover, author, inspect, and verify Webstudio
projects while reducing unnecessary MCP context usage.
## What changed
- Adds an **Agents** section to Project Settings with ready-to-run setup
commands and client configuration for Claude Code, Codex, Cursor, and VS
Code.
- Makes large list and schema responses compact and paginated by
default, with **verbose** available when complete records or diagnostics
are needed.
- Applies consistent compact output to assets, instances, styles, design
tokens, CLI schemas, and project-session metadata.
- Returns actionable expression warnings for props, resources, and
Collection bindings, including unknown variables and risky render-time
mutation resources.
- Improves Collection expression guidance so agents can bind array items
with the correct scoped variables.
- Reports rendered audit outcomes explicitly as complete, partial,
confirmation-required, or failed.
- Expands runtime output schemas so MCP clients can validate responses
reliably.
- Strengthens the packaged CLI smoke workflow with a realistic
seven-page stdio MCP scenario.
## Architecture
- Consolidates `project-build` from 65 file-oriented entrypoints to 11
architecture-owned surfaces.
- Separates the core model, contracts, runtime authoring, transfer,
state, project sessions, MCP, visual tooling, persistence codecs, and
authenticated server services.
- Isolates Node-only JSX evaluation from browser-safe transfer utilities
and authenticated server modules.
- Keeps persistence codecs independent from authenticated database
services, preventing unrelated module initialization.
- Defines shared instance-path types once and reuses them across runtime
modules.
- Preserves Immer initialization through explicit package side-effect
metadata.
- Adds package tests that prevent a return to source-file entrypoints or
generic exposure of Node-only surfaces.
## Validation
- Full repository checks, tests, typechecks, generated-file checks, and
fixtures
- All 163 Builder test files and 2,141 tests
- All 71 project-build test files and 1,794 tests
- Lint and package-boundary validation
- Full packed CLI release smoke test, including install, preview, agent
setup, seven-page stdio MCP workflow, rendered audit, and structured
commands
- Fix publish sync for empty JSON data variables
- Retry transient asset downloads once with shared sync-client backoff
- Fix Builder paste handling for Webstudio transfer data
- Add transfer/data-envelope terminology and colocated runtime
data-format modules
- Rename page clipboard runtime operation to page transfer semantics
- Report malformed Webstudio/Webflow paste data through paste results
instead of inserting it as text
- Add browser-level E2E coverage for instance, page, folder, template,
generic plugin, malformed data, native input, and content-mode paste
flows
## Details
- Allows empty JSON data variables to sync/publish correctly.
- Adds asset download retry coverage and uses shared backoff logic.
- Introduces runtime `data-formats` modules for data envelopes, instance
transfer data, and page transfer data.
- Removes stale clipboard aliases and `validateTemplateStructure`.
- Keeps clipboard as a Builder UI transport concern while
runtime/protocol use transfer-data terminology.
- Changes paste plugins to return expressive success/error results so
callers can show toast errors and stop fallback insertion.
- Prevents malformed Webstudio transfer payloads from falling through to
text/HTML/markdown insertion.
- Handles malformed Webflow-owned paste data without throwing.
- Adds shared copy-paste fragment insertion helpers to reduce duplicated
breakpoint-warning/fragment-data logic.
This PR expands Webstudio MCP and CLI into a more complete agent
authoring interface. Agents can discover project capabilities, edit real
Webstudio content, use data/resources, verify visual output, and report
useful issues when workflows fail.
## MCP User Capabilities
- Create, update, duplicate, reorder, and delete pages.
- Create pages from templates and manage reusable page templates.
- Inspect project pages, instances, props, styles, assets, variables,
resources, and metadata.
- Insert Webstudio components and authored JSX fragments into pages.
- Edit text, props, styles, breakpoints, design tokens, and CSS
variables.
- Update page metadata, SEO fields, redirects, marketplace metadata, and
project settings.
- Create and use static data variables.
- Create and use dynamic resources fetched over HTTP.
- Use REST, GraphQL, and built-in system resources in authored pages.
- Bind data variables and resources to visible page content.
- Create resource-backed pages such as sitemap XML, structured SEO data,
and API-driven content sections.
- Preview current project state without requiring a publish step.
- Capture screenshots for visual verification.
- Verify responsive designs across desktop, tablet, and mobile
breakpoints.
- Use screenshot diff and OCR-style checks to inspect rendered output.
- Reset and refresh local MCP project state when needed.
- Discover available CLI/MCP commands from generated manuals.
- Use clearer examples for resources, data variables, JSX authoring,
previewing, and visual checks.
- Read marketplace product metadata without requiring a full project
snapshot.
- Get safer guidance when using low-level patch tools.
- Get a ready-to-copy Discord report template when MCP/CLI behavior is
confusing or broken.
## Summary
- Add CLI project import support from synced `.webstudio/data.json` into
another project via a destination share link.
- Move project bundle import/export contract into
`@webstudio-is/protocol`, including bundle versioning, staged upload
constants, schema validation, and fixture coverage.
- Upload project bundle data through staged TUS upload before calling
the import RPC to avoid request body limits.
- Upload referenced assets as binary files through the existing asset
upload route before importing asset rows.
- Add `--skip-assets` and `--ignore-version-check` import options.
- Add retry handling for transient missing imported asset files by
re-uploading only the reported missing assets.
- Share missing-asset import error formatting/parsing through protocol
to avoid duplicated string contracts.
- Preserve browser asset upload behavior while adding API upload
support.
- Normalize schema naming across the branch to lower-case names without
`Schema` suffix.
Closes https://github.com/webstudio-is/webstudio/issues/4586
Closes https://github.com/webstudio-is/webstudio/issues/4619
## Summary
Fixes shared Slot editing so linked Slot occurrences stay consistent
across structural edits and labels.
## Changes
- Fixed moving a direct Slot child out of a Slot so the child is removed
from all linked Slot occurrences.
- Fixed unwrapping a direct Slot child so the child is removed from all
linked Slot occurrences.
- Added linked Slot label sync when renaming from Navigator or Settings
panel.
- Added/updated tests for canonical Slots, legacy Slots, nested Slot
children, keyboard moves, unwrap, reparent, and label sync.
- Simplified stale Slot detach logic that was incorrectly cloning only
the selected Slot occurrence.
## Testing
- `pnpm --filter @webstudio-is/builder test --
app/shared/instance-utils/...`
- `pnpm --filter @webstudio-is/builder test --
app/builder/shared/commands.test.ts`
- `pnpm --filter @webstudio-is/builder typecheck`
- `pnpm lint`
- `git diff --check`
Limits projects to 8 editable breakpoints, with a toast warning when
users try to add more. Pasted/imported styles that exceed the limit are
merged into the closest existing breakpoint instead of creating new
ones.
Also updates the breakpoint editor UI with required names, hover-only
trash actions, scrolling, and tighter layout polish.
Closes https://github.com/webstudio-is/webstudio/issues/4209
Here replaced a bunch boilerplaty code with more general
findClosestInsertable. This also reduced amount of explicit instance
selector calls. Prevented inserting list item into body. Refactored
tests with jsx.
Ref https://github.com/webstudio-is/webstudio/issues/4364
We need to implement universal linking of current user view. For this I
added "awareness" state which reflects terminology from collaboration
libraries.
First migrated selected page id and fixed usages.
## Description
This
<img width="856" alt="image"
src="https://github.com/webstudio-is/webstudio/assets/5077042/f8894380-0dbb-45c7-a1a5-410dbcb01fc8">
To this
<img width="1049" alt="image"
src="https://github.com/webstudio-is/webstudio/assets/5077042/bf618095-08be-4c6f-850f-56354e74e738">
## Known issues:
### All
- w-nav-link preset colors do not match
### Mobile
Mobile burger is not shown
- w-nav-button does not have breakpoint style i.e. display: none->block
for mobile
- w-nav-menu does not have breakpoint related style i.e display: block
-> none for mobile
- we don't have widget icons like burger i.e. `"data": { "widget": {
"type": "icon", "icon": "nav-menu" } }` _having breakpoint issues and
that user in any case need to use Sheet on mobile this is ok_
## Steps for reproduction
Copypaste Navbar from webflow 2 webstudio
## Code Review
- [ ] hi @kof, I need you to do
- conceptual review (architecture, feature-correctness)
- detailed review (read every line)
- test it on preview
## Before requesting a review
- [ ] made a self-review
- [ ] added inline comments where things may be not obvious (the "why",
not "what")
## Before merging
- [ ] tested locally and on preview environment (preview dev login:
5de6)
- [ ] updated [test
cases](https://github.com/webstudio-is/webstudio/blob/main/apps/builder/docs/test-cases.md)
document
- [ ] added tests
- [ ] if any new env variables are added, added them to `.env` file
---------
Co-authored-by: Oleg Isonen <oleg008@gmail.com>
## Description
- support combo classes
## Steps for reproduction
1. create project A, create class .a and set some style A
2. copy element with class .a
3. create a project B with also class .a, set some other style B
4. create a class .b, set some style C
5. create a combo class .a.b, set some style D
6. copy first project element with class .a into ws
7. copy second project element with combo class .a.b into webstudio
8. expect the element to have 3 tokens: `.a .b .a.b`, expect .a to have
style A, .b to have style B and .a.b to have style D defined on them
## Code Review
- [ ] hi @kof, I need you to do
- conceptual review (architecture, feature-correctness)
- detailed review (read every line)
- test it on preview
## Before requesting a review
- [ ] made a self-review
- [ ] added inline comments where things may be not obvious (the "why",
not "what")
## Before merging
- [ ] tested locally and on preview environment (preview dev login:
5de6)
- [ ] updated [test
cases](https://github.com/webstudio-is/webstudio/blob/main/apps/builder/docs/test-cases.md)
document
- [ ] added tests
- [ ] if any new env variables are added, added them to `.env` file
## Description
- support line breaks
- support span
- error asset variant
## Steps for reproduction
1. click button
2. expect xyz
## Code Review
- [ ] hi @kof, I need you to do
- conceptual review (architecture, feature-correctness)
- detailed review (read every line)
- test it on preview
## Before requesting a review
- [ ] made a self-review
- [ ] added inline comments where things may be not obvious (the "why",
not "what")
## Before merging
- [ ] tested locally and on preview environment (preview dev login:
5de6)
- [ ] updated [test
cases](https://github.com/webstudio-is/webstudio/blob/main/apps/builder/docs/test-cases.md)
document
- [ ] added tests
- [ ] if any new env variables are added, added them to `.env` file
## Description
Add support for background parsing into webstudio layers.
With partial support of webflow copy-pasting.
Main support will be in the next PR.
https `id`s are temporary used instead of real URLs to avoid various
encoding/decoding issues, will be changed in next PR or PRs
## Steps for reproduction
Copy-Paste something like this
<img width="1069" alt="image"
src="https://github.com/webstudio-is/webstudio/assets/5077042/caf827db-a6f7-43d6-b19c-4467fa1e3968">
Get this
<img width="286" alt="image"
src="https://github.com/webstudio-is/webstudio/assets/5077042/6a59beee-4eea-4f6b-840a-20684e0c0be8">
## Code Review
- [ ] hi @kof, I need you to do
- conceptual review (architecture, feature-correctness)
- detailed review (read every line)
- test it on preview
## Before requesting a review
- [ ] made a self-review
- [ ] added inline comments where things may be not obvious (the "why",
not "what")
## Before merging
- [ ] tested locally and on preview environment (preview dev login:
5de6)
- [ ] updated [test
cases](https://github.com/webstudio-is/webstudio/blob/main/apps/builder/docs/test-cases.md)
document
- [ ] added tests
- [ ] if any new env variables are added, added them to `.env` file
## Description
Add assets support
## Steps for reproduction
1. click button
2. expect xyz
## Code Review
- [ ] hi @kof, I need you to do
- conceptual review (architecture, feature-correctness)
- detailed review (read every line)
- test it on preview
## Before requesting a review
- [ ] made a self-review
- [ ] added inline comments where things may be not obvious (the "why",
not "what")
## Before merging
- [ ] tested locally and on preview environment (preview dev login:
5de6)
- [ ] updated [test
cases](https://github.com/webstudio-is/webstudio/blob/main/apps/builder/docs/test-cases.md)
document
- [ ] added tests
- [ ] if any new env variables are added, added them to `.env` file
## Description
ref #2647
We already had logic to handle style sources on paste: if the
destination has the same styleSource.id as the source, we do nothing.
Now, we add deterministic ID generation for Webflow classes. This,
combined with the existing logic, achieves the desired behavior.
## Steps for reproduction
Paste anything from single webflow project multiple times. See no
duplicated.
## Code Review
- [ ] hi @kof, I need you to do
- conceptual review (architecture, feature-correctness)
- detailed review (read every line)
- test it on preview
## Before requesting a review
- [ ] made a self-review
- [ ] added inline comments where things may be not obvious (the "why",
not "what")
## Before merging
- [ ] tested locally and on preview environment (preview dev login:
5de6)
- [ ] updated [test
cases](https://github.com/webstudio-is/webstudio/blob/main/apps/builder/docs/test-cases.md)
document
- [ ] added tests
- [ ] if any new env variables are added, added them to `.env` file
## Description
- updated mdn build
- fixed font-width
- render unset instead of var()
- skip properties with empty values
- temp rendering input instead of select
- remove the flag
- unprefix -webkit-appearance
## Steps for reproduction
1. click button
2. expect xyz
## Code Review
- [ ] hi @kof, I need you to do
- conceptual review (architecture, feature-correctness)
- detailed review (read every line)
- test it on preview
## Before requesting a review
- [ ] made a self-review
- [ ] added inline comments where things may be not obvious (the "why",
not "what")
## Before merging
- [ ] tested locally and on preview environment (preview dev login:
5de6)
- [ ] updated [test
cases](https://github.com/webstudio-is/webstudio/blob/main/apps/builder/docs/test-cases.md)
document
- [ ] added tests
- [ ] if any new env variables are added, added them to `.env` file
## Description
- adds breakpoints when they are missing
- adds some form components
- rewrites tests to jsx
https://share.descript.com/view/yOz2JeAdrXW
## Steps for reproduction
1. click button
2. expect xyz
## Code Review
- [ ] hi @kof, I need you to do
- conceptual review (architecture, feature-correctness)
- detailed review (read every line)
- test it on preview
## Before requesting a review
- [ ] made a self-review
- [ ] added inline comments where things may be not obvious (the "why",
not "what")
## Before merging
- [ ] tested locally and on preview environment (preview dev login:
5de6)
- [ ] updated [test
cases](https://github.com/webstudio-is/webstudio/blob/main/apps/builder/docs/test-cases.md)
document
- [ ] added tests
- [ ] if any new env variables are added, added them to `.env` file
## Description
Add Webflow image paste support
## Steps for reproduction
Copy node with images from webflow
Paste
## Code Review
- [ ] hi @kof, I need you to do
- conceptual review (architecture, feature-correctness)
- detailed review (read every line)
- test it on preview
## Before requesting a review
- [ ] made a self-review
- [ ] added inline comments where things may be not obvious (the "why",
not "what")
## Before merging
- [ ] tested locally and on preview environment (preview dev login:
5de6)
- [ ] updated [test
cases](https://github.com/webstudio-is/webstudio/blob/main/apps/builder/docs/test-cases.md)
document
- [ ] added tests
- [ ] if any new env variables are added, added them to `.env` file
Ref https://github.com/webstudio-is/webstudio/issues/2647
## Description
- show a toast when skipping unsupported elements
- handle shorthands
- RichText test and link inside rich text fixes
## Steps for reproduction
1. click button
2. expect xyz
## Code Review
- [ ] hi @kof, I need you to do
- conceptual review (architecture, feature-correctness)
- detailed review (read every line)
- test it on preview
## Before requesting a review
- [ ] made a self-review
- [ ] added inline comments where things may be not obvious (the "why",
not "what")
## Before merging
- [ ] tested locally and on preview environment (preview dev login:
5de6)
- [ ] updated [test
cases](https://github.com/webstudio-is/webstudio/blob/main/apps/builder/docs/test-cases.md)
document
- [ ] added tests
- [ ] if any new env variables are added, added them to `.env` file
## Description
- webflow css preset
## Steps for reproduction
1. click button
2. expect xyz
## Code Review
- [ ] hi @kof, I need you to do
- conceptual review (architecture, feature-correctness)
- detailed review (read every line)
- test it on preview
## Before requesting a review
- [ ] made a self-review
- [ ] added inline comments where things may be not obvious (the "why",
not "what")
## Before merging
- [ ] tested locally and on preview environment (preview dev login:
5de6)
- [ ] updated [test
cases](https://github.com/webstudio-is/webstudio/blob/main/apps/builder/docs/test-cases.md)
document
- [ ] added tests
- [ ] if any new env variables are added, added them to `.env` file
## Description
Combo classes, Custom attributes, Grid, Columns, Image
## Steps for reproduction
1. click button
2. expect xyz
## Code Review
- [ ] hi @kof, I need you to do
- conceptual review (architecture, feature-correctness)
- detailed review (read every line)
- test it on preview
## Before requesting a review
- [ ] made a self-review
- [ ] added inline comments where things may be not obvious (the "why",
not "what")
## Before merging
- [ ] tested locally and on preview environment (preview dev login:
5de6)
- [ ] updated [test
cases](https://github.com/webstudio-is/webstudio/blob/main/apps/builder/docs/test-cases.md)
document
- [ ] added tests
- [ ] if any new env variables are added, added them to `.env` file
Oleg Isonen