v2.8.0 Release

Changes

• [deps] Switch bundling from webpack to esbuild #142
• [deps] Migrate the build from yarn and lerna to pnpm workspaces #144
• [launch] Expose the address a launcher bound to via listening and port on JsonRpcGLSPServerLauncher, so an embedder no longer has to parse the startup message to learn an OS-assigned port #150
• [launch] Add an onConnection event to SocketServerLauncher and WebSocketServerLauncher, so an embedder can observe accepted connections without reaching for the protected server field #150
  • the web socket event carries the upgrade request next to the socket, which is the only place its headers and query are still available
• [launch] Release the server socket again when a restarted launcher is shut down #150
  • WebSocketServerLauncher now also closes the HTTP server it mounts on, which ws leaves listening because it did not create it
• [mcp] Return results that satisfy the declared output schema, so a create-edges dry run returns its verdicts instead of an output-validation error #152
• [mcp] Stop reporting success for work that was not done #152
  • save-model writes to an explicit fileUri even when the command stack is clean, instead of skipping a save-as
  • undo and redo report how many commands they applied, not how many were requested
  • modify-nodes and modify-edges report an error for entries that request no change, instead of counting them as modified
• [mcp] Reject unknown element ids in validate-diagram and set-view, which previously dropped them and returned an empty, clean-looking result #152
• [mcp] Keep tools out of the MCP catalog when no diagram type supports them, so layout is no longer advertised without a bound LayoutEngine #152
  • the new isSupportedByDiagramType() hook on the diagram tool and resource bases covers statically bound dependencies; canRegister() keeps gating capabilities of the connected GLSP client
• [mcp] Align tool schemas and descriptions with what the tools actually accept and apply #152
  • set-selection accepts the documented empty-array form for clearing the selection, and undo / redo require integer counts
  • modify-nodes positions are parent-relative and create-nodes positions absolute, matching the dispatched operations
  • the create-* tools echo the created element when its type differs from the requested elementTypeId, instead of reporting a creation failure

Potentially Breaking Changes

• [elk] Replace the no-op ELK factory in web worker contexts with a working in-process implementation #141
  • elkLayoutModule was effectively a no-op in the browser and now actually performs layout, so adopters that relied on that behavior have to adapt accordingly
• [layout] Keep applying computed bounds when an individual entry cannot be applied #149
  • applyRoute now returns GEdge | undefined instead of GEdge
  • applyElementAndBounds, applyAlignment and applyRoute no longer throw for an element the index cannot resolve, they report it as not applied. applyRoutingPoints stays strict.
• [launch] Launchers register what shutdown has to release in the new GLSPServerLauncher.registerDisposables hook, called once per launch, rather than in their constructor #150
  • A custom launcher that pushes into toDispose from its constructor keeps compiling but loses that cleanup after the first shutdown, because dispose empties the collection. Move those registrations into an override of registerDisposables.
• [mcp] The MCP tool handler bases take an optional output type parameter, e.g. AbstractMcpDiagramToolHandler<I, O>, bound to the handler's declared outputSchema #152
  • The parameter defaults, so a handler without an outputSchema is unaffected. A subclass that passes success() a payload not matching the overridden handler's output schema now fails to compile, instead of producing an error result at call time.
• [mcp] modify-nodes rejects position / size for elements that are not a GNode, which core's bounds handler silently ignored while the tool reported success #152
  • Adopters who bind a bounds handler covering more element kinds override the guard in ModifyNodesMcpToolHandler.

Full Changelog: v2.7.0...v2.8.0