Resolves#9420 (critical memory usage issue in PROD deployment)
When the plugin's ExecuteCodeTaskHandler returns a Uint8Array (e.g. from penpotUtils.exportImage),
JSON.stringify previously serialized it as an object with numeric string keys,
causing ~10x payload expansion and large peak heap usage on the server side.
The plugin now wraps a top-level Uint8Array result in a tagged envelope
{ __type: "base64", data: <base64> }, and ImageContent.byteData decodes this envelope
on the server. The legacy numeric-keyed-object path is retained as a fallback for
compatibility with older plugin builds.
Resolves#9420 (critical memory usage issue in PROD deployment)
When the plugin's ExecuteCodeTaskHandler returns a Uint8Array (e.g. from penpotUtils.exportImage),
JSON.stringify previously serialized it as an object with numeric string keys,
causing ~10x payload expansion and large peak heap usage on the server side.
The plugin now wraps a top-level Uint8Array result in a tagged envelope
{ __type: "base64", data: <base64> }, and ImageContent.byteData decodes this envelope
on the server. The legacy numeric-keyed-object path is retained as a fallback for
compatibility with older plugin builds.
The ping interval was stored in a single variable shared across all
WebSocket connections, so each new connection overwrote the previous
handle and leaked the prior interval.
Move the interval onto ClientConnection as a per-connection field,
and centralize teardown in a new removeConnection(ws) method used
by the close, error and duplicate token rejection paths.
Resolves#9430
The ReplServer Express app was calling `app.listen(port)` with no host
argument, causing Node/Express to default to binding on all interfaces
(0.0.0.0). Combined with the unauthenticated /execute endpoint, any
network peer could POST arbitrary JS and get it run inside the MCP
process.
Fix: add a `host` parameter (default "localhost") to the ReplServer
constructor and pass it to `app.listen`. The call site in
PenpotMcpServer now forwards `this.host` (sourced from
PENPOT_MCP_SERVER_HOST env var, default "localhost"), so environment-
variable overrides continue to work.
Signed-off-by: Andrey Antukh <niwi@niwi.nz>
Change isVariant() return type from boolean to 'this is LibraryVariantComponent',
enabling TypeScript users to directly access variants, variantProps, and
variantError after a type-narrowing check. Update MCP instructions with
improved variant navigation guidance.
Closes#9185
Co-authored-by: Claude (Anthropic) <noreply@anthropic.com>
This is a temporary workaround for penpot/penpot-mcp#27.
It adds a wait time before exports via the export_shape tool to account
for asynchronous updates in Penpot, increasing the likelihood of exporting
the fully updated state.
If the MCP version (as given in mcp/package.json) does not match
the Penpot version (as given by penpot.version), display a warning
message in the plugin UI.
This is important for users running the local MCP server, as it
is a common failure mode to combine the MCP server with an
incompatible Penpot version.
Add support for 'page' as a special shapeId value in the MCP export_shape
tool. It resolves to penpot.root, exporting the entire current page as a
PNG or SVG snapshot.
Previously only 'selection' and explicit shape IDs were supported. The new
'page' shortcut is useful for AI agents needing a bird's-eye view of the
design without having to know a specific shape ID.
Closes https://github.com/penpot/penpot/issues/8689
Signed-off-by: Abhishek Mittal <abhishekmittaloffice@gmail.com>
Update instructions and API documentation to account for
* updated token property names; resolves#8512
* improved variant container creation; resolves#8564
* ✨ Reduce instructions transferred at MCP connection to a minimum
Force on-demand loading of the 'Penpot High-Level Overview',
which was previously transferred in the MCP server's instructions.
This greatly reduces the number of tokens for users who will
not actually interact with Penpot, allowing the MCP server to
remain enabled for such users without wasting too many tokens.
Resolves#8647
* 📎 Update Serena project
* 🎉 Prepare npm package for MCP server
* 🐛 Re-establish Windows compatibility of MCP server build script
Use node instead of cp to copy files
* ✨ Set version for MCP npm tarball based on git tag
* Add scripts/set-version to set the version in package.json
based on git describe information
* Add scripts/pack to perform the packaging
* ✨ Reintroduce proper session management for /mcp endpoint
Reuse transport and server instance based on session ID in header
* ✨ Periodically clean up stale streamable HTTP sessions
Add class StreamableSession to improve type clarity
* ✨ Avoid recreation of objects when instantiating McpServer instances
Precompute the initial instructions and all tool-related data
* ✨ Improve logging of tool executions
