bill-kotlin-code-review-api-contracts

Analyze Kotlin backend API contracts to prevent breaking changes.

13|1|Updated Mar 16, 2026
One-click install
npx skills add https://github.com/Sermilion/skill-bill --skill bill-kotlin-code-review-api-contracts
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: bill-kotlin-code-review-api-contracts
Source: https://github.com/Sermilion/skill-bill/tree/main/platform-packs/kotlin/code-review/bill-kotlin-code-review-api-contracts
Command: npx skills add https://github.com/Sermilion/skill-bill --skill bill-kotlin-code-review-api-contracts

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Kotlin backend APIs frequently drift, causing client breakages and misaligned contracts. This skill provides targeted reviews of API boundaries, validation rules, and serialization to preserve stable client behavior.

Core Features & Use Cases

  • Review request validation, serialization contracts, and status-code mappings across Kotlin backends (Ktor, Spring, Micronaut, gRPC, etc.).
  • Detect backward-incompatible changes and propose versioning or migration paths to maintain client compatibility.
  • Use cases include API surface refactors, deprecations, and enforcement of explicit contracts across microservices.

Quick Start

Provide a Kotlin service's public API contract to receive a prioritized list of issues and recommended fixes.

Frequently Asked Questions about bill-kotlin-code-review-api-contracts

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I check my Kotlin backend for backward-incompatible API changes?

You can review request validation, serialization contracts, and status-code mappings by analyzing your Kotlin service's public API contract. This identifies backward-incompatible changes to preserve stable client behavior across microservices.

Does this API contract review work with Ktor, Spring, and Micronaut?

Yes, API contract review works across Kotlin stacks including Ktor, Spring, Micronaut, and gRPC. It applies targeted analysis to API boundaries, validation rules, and serialization to maintain client compatibility.

What is the best way to stabilize Kotlin API contracts during a refactor?

The best way to stabilize Kotlin API contracts during a refactor is to enforce explicit versioning and clear boundary definitions. This detects drift and proposes migration paths to maintain backward compatibility for clients.

How do I enforce stable error contracts and explicit versioning across microservices?

You enforce stable error contracts and explicit versioning by reviewing API boundaries and serialization mappings across your Kotlin microservices. This prevents client breakages caused by misaligned contracts and API drift.

When do I need to analyze API boundaries for serialization and validation drift?

You need to analyze API boundaries for serialization and validation drift when performing API surface refactors, managing deprecations, or enforcing explicit contracts to prevent breaking changes in your Kotlin backend.