The surcharge is now COASTAL_ACCESS_SURCHARGE_HOPS_PER_RING=1 added
directly to length_cells (a pure hop count) — the old cost-unit
constant div_ceil'd through MIN_CELL_COST silently produced 4 hops per
ring, worst-case +24 (double the waypoint threshold) for physically
short edges; worst case is now 6. A formula-pinning test asserts both
the arithmetic and the constant. GJ251c's repro tightened to the
documented 2 edges. The always-land citation now points at the real
guarantee (features.rs::extract_attractors, D-209) — and checking the
D-211 Phase-4 synthetic-overflow path exposed a real gap: it has no
ocean-mask guard at all (T-1206 filed); documented, not papered over.
D-210 gains a dated amendment recording the surrogate-anchor-at-cost
carve-out and the relaxation-over-nudge adjudication. The bare 100
dependency dissolved with the unit fix. Edge counts on both repro
bodies verified unchanged (reachability was never affected).
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
jpmschweitzerandClaude Fable 5
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