GeezerVison

PR Summary

Medium Risk
Touches BPMN save/deploy paths and spawns an external Node process for layout; new MCP tools perform authorized create/update operations on core assets.

Overview
BPMN diagram interchange and auto-layout — MCP process create/update now treats missing or broken sequence-flow diagram info as a first-class problem. ProcessBpmnValidator fails validation when a sequenceFlow has no bpmndi:BPMNEdge or fewer than two di:waypoint entries (missing_bpmn_edge / incomplete_bpmn_edge), and exposes lacksSequenceFlowDiagramInterchange for callers. ProcessCatalog runs BpmnLayoutService (external Node layout script when mcp.bpmn_layout.enabled) on create/update when the user opts in via auto_layout_bpmn (default true) or when interchange is incomplete—even if auto_layout_bpmn is false—so Modeler no longer shows spider connectors from (0,0). A dedicated layout-bpmn tool and updated Process MCP instructions/skills document the behavior.

The same changeset also wires this into a broader Model Context Protocol surface: Process, Screen, and Data Connectors MCP servers with catalogs, validators, guidance/skills resources, and CRUD-style tools for processes (including plan-process and BPMN validation), screens, data connectors, and collections.

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Quality Gate failed

Failed conditions
3 New issues
B Security Rating on New Code (required ≥ A)
2 New Maintainability Issues (required ≤ 0)

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