mirror of
https://github.com/webstudio-is/webstudio.git
synced 2026-11-03 10:37:48 +09:00
Oleg Isonen
d5b3f3ab80
## Summary This consolidates the reported MCP reliability fixes into one delivery. - validate all inserted fragment expressions with the shared runtime rules and reject text/expression children when component content models require elements - return an actionable error for unsupported existing-resource references in JSX - preserve siblings rendered before expression children - accept unresolved CSS-variable shorthand expansion and eliminate dynamic-alt/`htmlFor` audit false positives - resolve exposed underscore MCP names during focused discovery - omit unavailable stopped-preview fields and restart stale iterative previews for external clients - bound single and responsive screenshot capture, return `SCREENSHOT_TIMEOUT`, and discard failed reusable browser sessions - dispose previews when shared MCP runs fail or stdio clients disconnect, including complete Windows process-tree cleanup - resolve generated route templates from the CLI-managed preview workspace during responsive verification - retry a browser that exits during rendered-audit startup and report sanitized exit diagnostics with a concrete browser-path recovery action - materialize complete current session data before preview generation so route order and project styles cannot collapse from missing lazy namespaces - always include CLI and Node.js version fields in generated issue reports, with explicit legacy-client fallbacks - document the updated preview and screenshot contracts and regenerate the CLI manual The current branch also retains the protections already present on `main` for dry-run isolation, CSS rewrite truncation metadata, stderr-only progress, shortcut argument forwarding, strict MCP schemas, and refreshed conflict diagnostics. ## Technical choices - MCP command orchestration stays in `mcp.ts`; preview port/retry behavior lives with `mcp-preview`, and persisted checkpoint storage lives in `mcp-checkpoint`. Each module owns its matching tests. - Expression validation lives on the shared fragment input schema, reuses `listFragmentExpressions`, and emits the same structured validation issues as prop bindings, so JSX-derived and structured fragments follow one contract across fragment, collection, and runtime UI insertion. - Element-child requirements come from component registry content models during fragment insertion; no component names are hardcoded in the JSX parser. `CollapsibleTrigger` metadata now matches its enforced `asChild` implementation. - Stopped preview status returns only `running: false`; unavailable `url`, `pid`, and `mode` fields are optional and omitted from JSON. - Explicit `preview.start` restarts a stale compatible iterative preview; managed screenshots keep their optimized refresh path. - Screenshot operations share one timeout utility. A single capture or complete responsive batch is bounded after preview readiness; lower-level CDP deadlines use the same stable error code. - Failed managed captures close and forget their browser session. A closed browser session cannot restart itself while cancellation is in progress, which prevents orphaned Chromium processes. - One ownership helper disposes one-shot and multi-project MCP hosts on success or failure. Shared `mcp run` hosts dispose in one `finally` boundary, long-running MCP hosts dispose on connection close, and Windows uses `taskkill /T /F` instead of killing only the npm wrapper. - Framework template readers receive the absolute template directory captured from the build root, so later async work cannot redirect them to the linked project's cwd. The same option drives cleanup for React Router, Remix, and Vike. - Browser startup gets one bounded retry before a rendered capture batch fails. Persistent failures report only the exit code, signal, or spawn error code plus the supported `WEBSTUDIO_BROWSER_PATH` recovery action; local paths and raw browser output are not exposed. - CLI and MCP preview share one session materializer that ensures the canonical Builder namespace set before writing `.webstudio/data.json`. Serialization rejects incomplete snapshots instead of converting missing style/instance namespaces into valid-looking empty arrays, and preview freshness records the post-materialization project version. - The CLI injects its package version and `process.versions.node`; issue formatting now keeps both fields visible even for legacy reports that omit runtime metadata. ## Checklist - [x] Add regression coverage for every changed behavior - [x] Demonstrate new regression tests fail without the corresponding fixes and pass with them - [x] Run affected package test suites and typechecks - [x] Run lint, package-boundary, and generated API checks - [x] Review fixture impact — no fixture inputs or outputs are affected - [x] Review documentation impact and update the authoritative MCP CLI manual source/generated output - [x] Run the complete local agent evaluation suite ## Verification - `@webstudio-is/project-build`: 2,090 tests passed - MCP asset query result modes are preserved across create, read, and update serialization - complete local agent evaluation suite: all 5 fixtures passed, 1,308,276 aggregate tokens - `@webstudio-is/react-sdk`: 140 tests passed - `@webstudio-is/template`: 43 tests passed - `webstudio` CLI: 956 tests passed - issue reporter: 5 targeted tests passed - MCP host disposal regression was demonstrated failing without the shared ownership boundary and passing with it - relevant package typechecks passed - `pnpm lint` passed - `pnpm check:package-boundaries` passed - `pnpm check:generated-api` passed - generated-doc tests, typecheck, sync, and regeneration passed; the aggregate clean-tree command reports the intentionally changed generated CLI manual - stalled single capture, stalled four-viewport capture, startup retry across a four-viewport batch, sanitized browser-exit diagnostics, complete preview materialization, post-refresh version tracking, closed-session restart, Windows process-tree cleanup, and preview-workspace regressions were demonstrated failing without their fixes and passing with them ## Known limitations - External `baseUrl` screenshots remain caller-owned and intentionally do not regenerate, restart, or stop that external server. Closes #6034 Closes #6035 Closes #6038 Closes #6042 Closes #6043 Closes #6044 Closes #6045 Closes #6046 Closes #6047 Closes #6048 Closes #6049 Closes #6050 Closes #6051 Closes #6052 Closes #6059 Closes #6060
Webstudio SDK
Webstudio SDK is a TypeScript API that lets you use your Webstudio project or some components in your custom codebase or just render a complete Remix Document. It is currently under development, but feel free to play with the the current landing site