ReconShield — Completeness and atomicity guard for multi-sink updates
10/10
Demand Score
Partial writes create silent revenue leakage and compliance exposure; teams spend nights backfilling and apologizing to customers.
9/10
Blue Ocean
Competition Level
$1k-7k
Price/Month
Predicted customer spend
12 days
Time to MVP
Difficulty: Hard
The Problem
A reliability layer that prevents and repairs missing/partial updates across destinations using an outbox SDK, saga-style coordinator, per-record completeness scoring, end-to-end checksums, and auto-r
Competitor Landscape
- Datafold (diff/recon)
- Monte Carlo Data
- Bigeye
- Debezium Outbox (pattern)
- Custom replay scripts
Must-Have Features for MVP
Outbox SDKs (.NET/Java/Node/Python) with guaranteed emission
Saga coordinator with compensating actions
Per-record completeness score and SLAs
Row/field checksums and drift detection
Auto-replay with exponential backoff and ordering guarantees
Quarantine queues with safe retry playbooks
Auditable trails and exportable evidence for compliance
⚠️ Potential Challenges
- Coordinating exactly-once semantics over flaky APIs
- Idempotency key design per destination
- Access to authoritative sources for verification
- High-volume replay without reordering side effects
Risk Level: High
🎯 Keys to Success
- >95% reduction in partial-update incidents
- MTTD under 60 seconds via completeness monitors
- MTTR for missing records under 15 minutes
- Auditor-approved completeness reports
- Zero duplicate side effects during replays
Ready to Build This?
This hard-difficulty project could be your next micro-SaaS success.