Build a Buyer Multi-Hop Return Route and Compensation Explainer
Analyze complex return scenarios across multiple mock logistics carriers in open networks. Reconcile restock penalties and courier fee shares into clear settlement explanations.
What you are building
The core problem, expected build, and operating context for this challenge.
Analyze complex return scenarios across multiple mock logistics carriers in open networks. Reconcile restock penalties and courier fee shares into clear settlement explanations.
Post-fulfillment logistics operations analyst
Ingest multi-leg return fulfillment events and tracking checkpoints from mock Beckn BAP callbacks.
Calculate reverse transit mileages, return handling surcharges, and merchant restocking deductibles.
Detect discrepancies between asserted courier handoffs and actual pickup scan events.
Generate a structured variance dossier and claimant breakdown notice for advocate review.
Multi-hop route visualizer with breakdown calculation tables and disputed carrier cost alerts.
Construct synthetic multi-hop logistics tracking events following Beckn Final Mile Delivery specifications. Starter examples below are synthetic. They are not downloaded records.
Beckn protocol specifications Applies Beckn Final Mile Delivery callback lifecycle schemas and asynchronous fulfillment status flows.
ray-serve, pydantic, fastapi. Serves distributed rule evaluation models for high-throughput reconciliation of asynchronous delivery handoffs. API-hosted Claude or local Llama for plain-language variance statement generation.
Submit runnable source, pinned dependencies, setup commands, a working interface, example outputs, and a recorded end-to-end demo. Include tests and an action log.
Compute exact leg-by-leg logistics charges and merchant deductibles from mock events.
Isolate transit tracking gaps across distinct carrier handoff nodes.
Output itemized dispute settlement summaries in normalized JSON.
Flag unauthorized fee clawbacks for human logistics auditor review.
```json [ { "input": { "return_order_id": "RET-7741", "carrier_legs": [ { "carrier": "courier-hyperlocal-a", "status": "picked_up", "charge": 40 }, { "carrier": "courier-intercity-b", "status": "delivered_to_hub", "charge": 110 } ], "merchant_restock_rate": 0.05, "item_value": 1000 }, "expected_output": { "total_reverse_logistics_cost": 150, "merchant_deduction": 50, "buyer_refund_amount": 950, "discrepancy_detected": false, "disposition": "settlement_approved" } }, { "input": { "return_order_id": "RET-9012", "carrier_legs": [ { "carrier": "courier-local-x", "status": "picked_up", "charge": 45 }, { "carrier": "courier-intercity-y", "status": "lost_in_transit", "charge": 120 } ], "merchant_restock_rate": 0, "item_value": 2400 }, "expected_output": { "total_reverse_logistics_cost": 45, "merchant_deduction": 0, "buyer_refund_amount": 2400, "discrepancy_detected": true, "disposition": "carrier_liability_claim" } } ] ```
Strictly diagnostic; generates non-binding settlement audits without executing banking or payment commands. Use mock external writes. Require human review before any real deployment.
Participation guide
Strictly diagnostic; generates non-binding settlement audits without executing banking or payment commands. Use mock external writes and human review.
How work is evaluated
Compute exact leg-by-leg logistics charges and merchant deductibles from mock events. Isolate transit tracking gaps across distinct carrier handoff nodes. Output itemized dispute settlement summaries in normalized JSON. Flag unauthorized fee clawbacks for human logistics auditor review.
Runnable source, pinned dependencies, setup commands, working interface, example outputs, recorded demo, tests, and action logs.
Challenge datasets
Public datasets, plus the private datasets you have access to.
How submissions are scored
These dimensions define what the evaluator checks and which criteria separate a passable run from a strong one.
Complete workflow
Ingest multi-leg return fulfillment events and tracking checkpoints from mock Beckn BAP callbacks. Calculate reverse transit mileages, return handling surcharges, and merchant restocking deductibles. Detect discrepancies between asserted courier handoffs and actual pickup scan events. Generate a structured variance dossier and claimant breakdown notice for advocate review.
Missing or incorrect.
Partly complete, with documented gaps.
Complete, with reproducible evidence.
Correctness and evidence
Compute exact leg-by-leg logistics charges and merchant deductibles from mock events. Isolate transit tracking gaps across distinct carrier handoff nodes. Output itemized dispute settlement summaries in normalized JSON. Flag unauthorized fee clawbacks for human logistics auditor review.
Missing or incorrect.
Partly complete, with documented gaps.
Complete, with reproducible evidence.
Review interface
Multi-hop route visualizer with breakdown calculation tables and disputed carrier cost alerts.
Missing or incorrect.
Partly complete, with documented gaps.
Complete, with reproducible evidence.
Safe execution
Strictly diagnostic; generates non-binding settlement audits without executing banking or payment commands.
This dimension contributes its full weight only when the submission satisfies the requirement. Partial credit is not awarded.
What you should walk away with
Ingest multi-leg return fulfillment events and tracking checkpoints from mock Beckn BAP callbacks.
Calculate reverse transit mileages, return handling surcharges, and merchant restocking deductibles.
Detect discrepancies between asserted courier handoffs and actual pickup scan events.
Generate a structured variance dossier and claimant breakdown notice for advocate review.
Reference links and supporting material
Construct synthetic multi-hop logistics tracking events following Beckn Final Mile Delivery specifications. Supplied starter examples are synthetic, not source extracts.
Challenge setup
Configuration summary for this challenge.
Challenge input
Input details are not configured.
Ray Serve
Action Space in the agent workflow.
Evaluated output
No output checks are configured.
- Ingest multi-leg return fulfillment events and tracking checkpoints from mock Beckn BAP callbacks. Calculat...
- Compute exact leg-by-leg logistics charges and merchant deductibles from mock events. Isolate transit track...
- Multi-hop route visualizer with breakdown calculation tables and disputed carrier cost alerts.
- 2 public reference cases
- 1 configured tool
Summary shows the first task, up to three tools, and up to three evidence items. Open the technical recipe to view all configured items.
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Configured tools
- Ray Serve · Optional
Evaluation contract
- Complete workflow · Weight 40
- Correctness and evidence · Weight 30
- Review interface · Weight 20
- Safe execution · Weight 10
Reference cases
- 2 public reference cases
Workflow tasks
No workflow tasks are configured.
Recipe freeze marker
No recipe freeze time is recorded.