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Forwarded chain appends current hop · case 03

Forwarded chain appends current hop.

Member previewVariant 3 · 3 implementations · 4 checks per implementation

Case contract

Bounded offline decision model: forwarded chain appends current hop. Inputs are already validated protocol fields; the explicit fixtures define the supported policy, not a complete protocol implementation.

Why this case matters

This deterministic proxy forwarding model isolates the forwarded-chain-appends-current-hop policy at a network component boundary.

One recorded failure

Sample boundary fixture

This sample comes from the broken implementation of a controlled reproducer.

Boundary fixture	Actual	Expected	Outcome
fixture 1	`["b", "a"]`	`["a", "b"]`	Failed

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