FA-85905 / Game economy crafting balance / Member archive

Salvage component return: Rare items lose their minimum return · case 05

Worn rare items can return zero of a component.

Member previewVariant 5 · 3 implementations · 8 checks per implementation

Case contract

Return rate: common 50%, rare 70%, epic 90%. Condition d/mx with d clamped to mx; max_durability 0 means indestructible (full condition). Durability <= 0 yields {"scrap": 1}. Each component amount = floor(count*pct*d/(100*mx)) computed once; rare and epic items return at least 1 of each component; zero amounts are omitted.

Why this case matters

Game economies leak or destroy currency when one crafting or pricing rule is off by one boundary, rounding stage or state update; the defect is observable in exact integer outcomes.

One recorded failure

Sample boundary fixture

This sample comes from the broken implementation of a controlled reproducer.

Boundary fixture	Actual	Expected	Outcome
fault site rarity guarantee scope #1	`{}`	`{"cloth": 1}`	Failed

MEMBER ARCHIVE

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This record includes three runnable implementations, regression fixtures, execution results, and source hashes.

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