Where the thirteen-link rubric chain snapped across twelve models. A shared dependency spine of thirteen rubric links labelled a through m runs left to right; links a through f are the classification half, links g through l are the back-half Rule-Against-Perpetuities cascade, and link m is an optional unscored footnote drawn muted and dashed. A dashed vertical divider sits between f and g. At the top, a teal band spans a through l: the seven models that held the entire chain. Below it descend five rupture lanes in capability-ladder order. grok-4.3 ruptures early at b, a hollow ring with a snapped spine, the lone front-half structural break and the ladder's bottom rung. deepseek-v3.2 ruptures at e. gpt-5.4 ruptures at g, and a thin arc carries the failure into the title link l. opus-4.8 holds all structure then ruptures at h and i, with two arcs converging on l. claude-haiku-4.5 ruptures at i with a partial at h, and an arc into l, plus partial half-rings at j and k. Held nodes are solid teal discs; broken nodes are hollow rings stroked red with a gap in the spine; partial nodes are half-filled rings. a b c d e f g h i j k l m classification (a–f) RAP resolution (g–l) Held the full chain a–l (seven models, memo 5): claude-fable-5, claude-opus-4.7, gpt-5.5, deepseek-v4-pro, claude-opus-4.6, gemini-3.5-flash, gemini-3.1-pro-preview. 7 models held a–l memo 5 / 5 classification saturated across the frontier grok-4.3, link b BROKE: calls the post-fee-tail interests executory interests, not remainders. An early, structural classification mis-step — the ladder's bottom rung. grok-4.3, link f PARTIAL: measuring-lives identification muddled. grok-4.3, link k PARTIAL: Octavia-as-measuring-life muddled. grok-4.3 memo 3 / 5 early & structural — foundational miscategory, but the RAP conclusions held bottom rung deepseek-v3.2, link e BROKE: classifies the Society gift as an executory interest. A near-miss; the core RAP result essentially held. deepseek-v3.2, link h PARTIAL: no explicit all-or-nothing (Leake) citation. deepseek-v3.2, link k PARTIAL: Octavia muddled. deepseek-v3.2 memo 4 / 5 near-miss — one misclassification, core RAP result essentially held gpt-5.4, link g BROKE: concludes the widow's life estate VOID when it is VALID (it vests at Arthur's death). The single wrong node. gpt-5.4, link l BROKE: wrong resulting title — a consequence of the wrong determination at g. gpt-5.4 memo 3 / 5 one wrong node (g) cascades into the title (l) claude-opus-4.8, link h BROKE: flips grandchildren VOID to VALID under one wrong premise (post-fee-tail remainders RAP-exempt). Knowledge intact; a single wrong commitment overrode it. claude-opus-4.8, link i BROKE: flips the Society gift VOID to VALID under the same wrong premise. claude-opus-4.8, link l BROKE: wrong resulting title — carried from the flipped h and i holdings. claude-opus-4.8 memo 2 / 5 held all structure (a–g), then one wrong premise detonates h, i and the title l claude-haiku-4.5, link h PARTIAL: never identifies the afterborn mechanism; all-or-nothing not invoked. claude-haiku-4.5, link i BROKE: calls the Society's gift VALID. Working-memory overload across the long downstream cascade. claude-haiku-4.5, link j PARTIAL: mishandles the fertile-octogenarian trap. claude-haiku-4.5, link k PARTIAL: Octavia-as-measuring-life mishandled. claude-haiku-4.5, link l BROKE: wrong resulting title — cannot carry the full dependent resolution at once. claude-haiku-4.5 memo 2 / 5 holds the taxonomy (a–g) but cannot carry the long dependent resolution (h–l) capability ladder ↓ early-structural to late-conclusional
Naming the interests (links a–f) is saturated across the frontier — every break falls in the back-half RAP cascade (g–l) save the two front-half classification breaks — grok-4.3 at b and deepseek-v3.2 at e. And where a model breaks climbs the capability ladder: one wrong node cascades into the title (gpt-5.4, g→l); the frontier flagship holds all structure then one wrong premise detonates the conclusions (opus-4.8, h, i→l); a small model holds the taxonomy but cannot carry the long dependent resolution (haiku, the back half collapses).

held = solid teal node · broke = hollow ring + snapped spine · partial = half-filled ring · m = optional/unscored (muted dashed)
cascade arc = an upstream break (g/h/i) propagating into the title link l · rows ordered by break location = the capability ladder

‡ Per-link held/broke/partial status is the projection of the claude-opus-4-6 LLM-judge rationales for task property-fee-tail-rap, 12 channel-corrected runs (canonical per model; 3 drawn from the predecessor EV-003 law-essays campaign: opus-4.7 a9ce8b17, opus-4.6 906ac4ad, haiku-4.5 b5c19d61). Roll-ups (measurement-shape deviation): N = 12 · front classification held across the frontier · 7/12 held the full chain a–l · 5 of 12 broke — three in the back-half RAP cascade (gpt-5.4, opus-4.8, haiku-4.5), two in the front-half classification (grok-4.3 at b, deepseek-v3.2 at e).