Cost-confidence tiers match the reversibility of an action to the confidence you have in its economics. The tier is stamped on the decision row at the moment of action, so an auditor sees the confidence the agent actually had — not what's known after costs were restated.
The tiers
- Tier A — verified landed cost, current. Full action set including price changes.
- Tier B — inferred margin within a confident band. Soft, reversible actions (copy, rank, draft).
- Tier C — orphan / unknown cost. Observe and propose; archive needs operator confirm.
What each tier unlocks
tier → allowed actionspython
TIER_ACTIONS = {
"A": {"PRICE_DROP", "DISCOUNT_TEST", "SCALE_WINNER", "OPTIMIZE_LOSER", "DRAFT", "VAULT"},
"B": {"OPTIMIZE_LOSER", "DRAFT", "REVIVE_SEASONAL"}, # no price moves
"C": {"FLAG_ORPHAN"}, # observe + propose only
}Because tiers gate actions in the type system, margin policy is enforced at decision time rather than living in a doc nobody reads. See the Action enum for the full move set.