Backend & APIs · Kotlin · For developers

Build live video, audio, and real-time data apps with Media over QUIC (MoQ). Use when adding live streaming, conferencing, voice AI, or real-time…

moq-dev/moq

Add a complete Yontrack property type — Kotlin PropertyType class, GraphQL mutation provider, and all required frontend UI components (Icon, Display, Form, FormPrepare).

yontrack/yontrack

Use Gradle Compose tasks to prepare and recover local Elasticsearch/OpenSearch test infrastructure in kt-search.

jillesvangurp/kt-search

Builds chat on Android with your own UI against the headless CometChat Chat SDK v5, covering install, Jetifier conflicts, credentials and init-before-login ordering.

cometchat/cometchat-skills

Creates RPC-style endpoint following layered architecture (Controller → Manager → Repository).

c0x12c/ai-toolkit

Owns repositories, data sources and mapping for Compose and Compose Multiplatform apps: DTO to domain to UiModel boundaries, Ktor clients and bearer auth, WebSocket and SSE, Room, DataStore, Paging…

Meet-Miyani/compose-skill

Ktor server patterns including routing DSL, plugins, authentication, Koin DI, kotlinx.serialization, WebSockets, and testApplication testing.

affaan-m/ECC

Guide for integrating new device types into the MonsterMQ broker.

vogler75/monster-mq

Applies idiomatic Kotlin 1.9+ patterns for coroutines and Flow, multiplatform code, Jetpack Compose on Android and Ktor servers, checked with detekt and ktlint.

Jeffallan/claude-skills

Develop features inside the Browser4 repository itself: add CLI commands, agent tool domains, REST endpoints, tests, and skills; analyze impact, plan dev tasks, check CDP pitfalls, and verify builds.

platonai/Browser4

Ktor 服务器模式，包括路由 DSL、插件、身份验证、Koin DI、kotlinx.serialization、WebSockets 和 testApplication 测试。

affaan-m/ECC

Add, integrate, or review Micronaut Sourcegen usage in modules that generate Java source, Kotlin source, Groovy-compatible source, or bytecode from ObjectDef, TypeDef, MethodDef, ExpressionDef…

micronaut-projects/micronaut-openapi

Writes new tests for Axelix source code (Java, Kotlin, TypeScript, JavaScript) that follow the project's testing standards — public-API contract coverage, test isolation, given/when/then structure…

axelixlabs/axelix

Write .connekt.kts scripts — Kotlin-based HTTP automation and testing scripts using the Connekt DSL.

Amplicode/spring-skills

Create Spring Boot Kotlin Project Skeleton. An agent skill from github/awesome-copilot.

github/awesome-copilot

Get best practices for developing applications with Spring Boot and Kotlin.

github/awesome-copilot

Ktor サーバーパターン（ルーティング DSL、プラグイン、認証、Koin DI、kotlinx.serialization、WebSocket、testApplication テストを含む）。

affaan-m/ECC

Restart the app via IntelliJ run configuration and wait until ready.

jvm-skills/jvm-skills

A skill your agent uses when annotating nullability in Spring Boot 4 / Spring Framework 7, migrating to JSpecify, integrating Kotlin, or enabling build-time null checks with NullAway.

rrezartprebreza/spring-boot-skills

A skill your agent uses when setting up or working with Ktor client in KMP or Android projects — HttpClient configuration, per-platform engine selection, kotlinx.serialization, bearer auth with…

rcosteira79/android-skills

Guide for building applications with Apollo Kotlin, the GraphQL client library for Android and Kotlin.

apollographql/skills

A skill your agent uses when annotating nullability in Spring Boot 3 / Spring Framework 6 code, integrating Kotlin, or adding static nullability checks without assuming Spring Framework 7 JSpecify…

rrezartprebreza/spring-boot-skills

A skill your agent uses when writing, reviewing or refactoring modern Java (21+, 25 LTS) — records and sealed interfaces as algebraic data types, exhaustive pattern-matching switch over instanceof…

ericrisco/rsc-harness

Testing standards using JUnit 5, AssertJ, Mockito, Cucumber, and Spring Boot integration tests for Java.

HoangNguyen0403/agent-skills-standard