Kiro: a repeatable PHP-to-Java migration engine with parity checks
In brief
- Kiro offers a PHP-to-Java migration engine with an eight-phase pipeline and a parity harness to verify functional compliance.
- The process can run interactively (Kiro) or autonomously (AWS Transform) using the same skill files.
- The scanner identifies PHP models (Eloquent, Doctrine) and generates a JSON manifest to guide automatic translation.
AWS introduces a PHP-to-Java migration engine built on Kiro, an AI-powered IDE, to turn a one-off migration into a measurable, repeatable process. According to the announcement, the method combines an automated discovery scanner with an eight-phase, parity-first workflow that ensures functional equivalence between the original PHP code and its Java port.
The engine relies on skill files to encode the methodology and workflow, enabling execution either interactively via Kiro or autonomously through AWS Transform at portfolio scale. The scanner detects PHP models (Eloquent, Doctrine) and generates a JSON manifest to guide translation, while the parity harness verifies behavior consistency between both versions.
This solution targets teams facing complex migrations where business logic is scattered across non-obvious files. The engine enforces strict discipline: the original PHP code serves as the specification, and migration is only validated once the parity harness passes. A Laravel-based example demonstrates the process, though aspects like harness construction still need improvement.
What it changes for you
- Industry & ManufacturingManufacturing companies using legacy PHP applications (e.g., Symfony, Laravel) can automate their migration to Java with compliance verification, reducing error risks and speeding up updates.
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