PHP Idempotency Checker
Analyzes PHP applications to detect and fix idempotency violations that cause duplicate writes and inconsistent states during retries.
This skill empowers developers to build resilient PHP applications by scanning code for common idempotency pitfalls in POST/PUT endpoints, command handlers, and critical service operations. It identifies risky patterns like payment processing without deduplication, unsafe retry loops, and missing unique constraints, providing clear guidance and code fixes to ensure that repeated operations yield the same result without side effects. It is particularly useful for systems implementing DDD, CQRS, and event-driven architectures where message redelivery and network retries are common.
Key Features
01Analyzes retry loops for unsafe side effects like duplicate email or SMS delivery
02Categorizes issues by severity with actionable code fix recommendations
03Detects missing Idempotency-Key headers in REST API endpoints
04Identifies non-idempotent CQRS command handlers lacking execution tracking
05Flags high-risk payment and financial operations without deduplication guards
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Use Cases
01Securing public-facing APIs against duplicate resource creation from client retries
02Refactoring legacy command handlers to support safe message redelivery in distributed systems
03Auditing financial and payment processing logic for double-charge risks