GR-EDGE

9 rules. Part I of the specification.

• EDGE-1A handle encodes the node, the direction and the portcore
• EDGE-2No edge key is structurally requiredextended
• EDGE-3A trigger edge is one whose target port is the trigger portcore
• EDGE-4A loopback edge targets the port named loop_backcore
• EDGE-5A declared edge type wins over the handle, if it is recognisedcore
• EDGE-6An error edge routes a failure instead of raising itcore
• EDGE-7A tool-only node is excluded from the execution graphextended
• EDGE-8A condition on an edge is tolerated, warned about, and ignoredextended
• EDGE-9Two edge vocabularies, and they never mixextended