ULTRAPLAN Three Variants

Description

Three ULTRAPLAN execution modes captured by Piebald-AI tracker at v2.1.88. one_shot: single Opus 4.6 pass, 10-15 minutes, default for focused tasks. two_pass: initial analysis + refinement pass, medium complexity. three_subagents_with_critique: 3 parallel research agents exploring different codebase dimensions (risk surfaces, dependency chains, existing patterns) + 1 critique agent reviewing synthesized plan for gaps; justifies 30-minute compute budget. Auto-selection based on prompt complexity means most users invoking /ultraplan get one_shot without knowing three_subagents_with_critique exists.

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src-20260409-f2ae567df131