Showing only the current checklist did not help, merely naming the matched step moved results in opposite directions by model, and moving directives into the system role sharply hurt both gate arms; the directive gain therefore depended on the instruction and its user-role placement.

model: Qwen3-235B · steps: 10 · density: 0.15 · variant: text checklist append · wilson95Ci: [0.47,0.64]

model: Qwen3-235B · steps: 15 · density: 0.3 · variant: text checklist append · wilson95Ci: [0.51,0.68]

model: Qwen3.6-35B · steps: 15 · density: 0.3 · variant: text checklist append · wilson95Ci: [0.28,0.45]

model: Qwen3-235B · steps: 15 · density: 0.3 · variant: text checklist append

model: Qwen3-235B · steps: 10 · density: 0.15 · variant: checklist replace mode · wilson95Ci: [0.44,0.61]

model: Qwen3-235B · steps: 10 · density: 0.15 · variant: checklist replace mode · comparison: paper arm

model: Qwen3-235B · steps: 15 · density: 0.3 · variant: checklist replace mode · wilson95Ci: [0.38,0.55]

model: Qwen3-235B · steps: 15 · density: 0.3 · variant: checklist replace mode · comparison: paper arm

model: Qwen3.6-35B · steps: 15 · density: 0.3 · variant: checklist replace mode · wilson95Ci: [0.2,0.35]

model: Qwen3.6-35B · steps: 15 · density: 0.3 · variant: checklist replace mode · comparison: paper arm

model: Qwen3-235B · steps: 15 · density: 0.3 · variant: checklist replace mode

model: Qwen3-235B · steps: 10 · density: 0.15 · variant: checklist plus matched step · wilson95Ci: [0.26,0.42]