represent-mechanism-edge

Purpose

Represent a directed mechanism edge with pathway, sign, assumptions, falsifier, strength, and evidence provenance.

Input contract

required: [source_entity, target_entity, mechanism_pathway, direction, evidence_register]
optional: [edge_type, strength_scale, assumptions, falsifier]
constraints: [source and target are typed; direction, pathway, evidence, and falsifier are explicit]

Procedure

1. Type the source and target entities and select the relation/edge type.
2. State the mechanism pathway and direction, including enabling conditions and assumptions.
3. Attach supporting and contradicting evidence, assign strength on the declared scale, and define a falsifier.
4. Emit the edge record with provenance and unresolved mechanism questions.

If a mechanism edge is typed but its support and contradiction records are not linked, consider attach-evidence-to-relation as the next tactic.