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agents.writerslogic.com

Explains settlements and payouts from ledger lines with an exact solver, not a model: subset-sum over integer minor units (meet-in-the-middle, DP, branch-and-bound) across candidate fee schedules (percentage + fixed, tiers, caps), withholding, FX rates and rounding conventions (half-up, half-even, truncate; per line or on the total). Returns UNIQUE only when exactly one assignment exists and the search completed, otherwise AMBIGUOUS with the exact count, NO_EXACT_MATCH with missing items, phantom settlements and the closest near-miss, or BUDGET_EXCEEDED. Reports which rounding convention reconciles. Structured input makes zero LLM calls; CSV is parsed by code; messy text is normalized by a fast-tier LLM whose rows must quote the source verbatim.