- The optimality gate's decode-failure message names ARG3 and the rebuild
command (node routing/scripts/build-road-graph.mjs); the frozen D-03
constants (OPTIMALITY_EPSILON_PCT = 0.1, REQUIRED_BASELINE_ARG_VERSION
= 1) and the immutable alt-baseline.json record are untouched.
- The oracle sweep's graph-missing (SKIP) and decode-failure wording names
the ARG3 binary; the seeded 200-pair symmetric-compare constants and the
three violation classes are unchanged.
- RO1/RO2 ban the ARG3 magic 0x41524733 in the upload script's and the
Worker's comment-stripped code: the one-path laws now cover the CURRENT
format, not just the retired ones. The Worker keeps exactly one
decodeGraph call, no GRAPH_VERSION, no magic, no === 2.
- measure-route-cpu.mjs is untouched here by design: its LADDER HISTORY
gains the CH rung only once the measured numbers exist (task 3).
Task 1: the D-03 gate script (measure-optimality-gate.mjs) reads the frozen
pre-ALT record, re-routes the same coordinate-pinned pairs on the current
ARG2 binary, and gates on seconds-equality (±0.1%) + verdict-class
preservation — never on node paths (equal-cost ties are documented behavior).
Rule-1 deviation the gate forced on its first run: routeAstar returned
SUBOPTIMAL real-graph routes (x038: 1234.6s vs the 1214.8s Dijkstra optimum;
x045: 1475.5s vs 1460.6s) — the fixture sweep could not see it. Root cause:
the fromTable bound d̂(ℓ,t) − d̂(ℓ,v) is one-directional Lipschitz (its u-side
term needs the REVERSE edge; a oneway does not provide one — the anchor
reached node 264611 126.8s faster than its own 1.49s upstream neighbour
264610), and the shared Ikeda average p = (h_f − h_b)/2 is consistent only
when every family inside h_f/h_b is two-sided. The toTable bound
d̂(v,ℓ) − d̂(t,ℓ) rides stored traversable edges in BOTH directions; it alone
joins the haversine now. Stop rule, reductions, meet probes, reconstruction:
untouched. landmarkTables/build verified EXACT (0 mismatches vs independent
integer Dijkstras, both rows, all 24 anchors).
- measure-optimality-gate.mjs: exported core + CLI guard (route-corpus
pattern); epsilon mirror + argVersion asserts precede any measurement;
per-pair rows, extract-drift WARNING (never a re-record), honest exit law
- astar.ts: potential() consults landmarkTo only; doc-comments carry the
one-directional-Lipschitz law and the x038/x045 evidence
- astar.test.mjs: A11 re-pinned (landmarkFrom must NOT appear in the
comment-stripped search — re-adding it trips the pin); A12 oneway-ring
sweep added (directed reach asymmetry stays Dijkstra-equal on every pair)
Battery: routing 80/80, bot 126/126, both typechecks green.
D-03 gate: GATE PASS — 53/53 routed pairs equal within ±0.1% (max |Δ| 0.005%),
verdict classes preserved (6 unreachable + 41 unsnappable, 0 re-snapped).
araharah-executor