name: fraudshield version: 0.2.0 description: | Production-grade OpenEnv environment for e-commerce fraud detection. Simulates marketplace fraud review with 3 difficulty levels (easy/medium/hard), deterministic graders, business-cost-sensitive rewards, and reproducible baselines. author: Devika J email: devikaj2005@gmail.com environment: class: FraudShieldEnvironment module: fraudshield_env action: class: FraudCheckAction module: models observation: class: FraudCheckObservation module: models reward: class: Reward module: models tasks: - name: easy description: | Clear-cut fraud detection with strong single-transaction indicators. Agents should achieve 95%+ accuracy by identifying obvious red flags. Difficulty: Foundation level - rewards strong pattern recognition. difficulty: easy num_transactions: 24 baseline_score: 1.0000 - name: medium description: | Mixed-signal reviews where confidence calibration and risk tradeoffs matter. No single feature is decisive; agents must weigh multiple indicators. Difficulty: Intermediate - rewards balanced decision-making. difficulty: medium num_transactions: 36 baseline_score: 0.8773 - name: hard description: | Coordinated fraud rings and legitimate flash-sale edge cases with overlapping signals. Complex patterns require network-level analysis and tolerance for ambiguity. Difficulty: Advanced - rewards sophisticated reasoning. difficulty: hard num_transactions: 48 baseline_score: 0.7206 metadata: created: "2026-03-30" framework: openenv license: MIT tags: - openenv - fraud-detection - e-commerce - agent-evaluation