Kotlin

@kotlin source repo

22 skills
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7 hours ago last updated

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Kmp Agp9 Migration · kotlin bundle
Migrates Kotlin Multiplatform (KMP) projects to Android Gradle Plugin 9.0+. Handles plugin replacement (com.android.kotlin.multiplatform.library), module splitting, DSL migration, and the new default project structure. Use when upgrading AGP, when build fails due to KMP+AGP incompatibility, or when the user mentions AGP 9.0, android multiplatform plugin, KMP migration, or com.android.kotlin.multiplatform.library.

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Kmp Swift Support Test Data · kotlin bundle
Generate minimal, stable KMP test data fixtures for Swift support and Swift ↔ Kotlin E2E UI tests in IntelliJ IDEA and Android Studio.

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Multik Docs · kotlin bundle
Write and edit Writerside user documentation pages for the Multik library. Covers all page types: Getting Started, User Guide, and API Reference. Handles page structure, Korro code samples, mk.tree navigation, and cross-references. Use this skill when creating new doc pages, updating existing ones, or when the multik-kdoc skill needs to create/update Writerside topics.

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Multik Kdoc · kotlin
Write, update, and audit KDoc documentation for the Multik library. Handles the full cycle: KDoc comments on source code, syncing with Writerside user docs in docs/topics/, and creating/updating Korro code samples.

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Fix Issue · kotlin bundle
Autonomously fix a YouTrack issue end-to-end: from ticket pickup through code fix, tests, PR creation, CI validation, and reviewer assignment.

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Update Doc · kotlin bundle
Update kotlinx-rpc documentation — version bumps, content edits, Writerside topics, KDoc, README, skills, and internal workflows. Use this skill whenever the user wants to bump the Kotlin version in docs, bump the library version, update the changelog, edit documentation topics, add a migration guide, update the version switcher, fix version references, write or update KDoc on public APIs, update the README, update Claude skills, or modify CLAUDE.md. Also trigger when the user mentions "update docs", "doc version", "release docs", "Writerside", "v.list", "changelog", "KDoc", "Dokka", "README", "skill", "CLAUDE.md", or wants to sync documentation with a new release.

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Update Shim · kotlin
Modify, build, publish, and verify the Kotlin/Native shim artifacts (gRPC shim and protobuf shim) in native-deps/shims/. Use this skill whenever the user wants to change shim C/C++ source code, update shim headers or .def files, bump a shim upstream version, add or remove archives from the overlap excludes list, patch KLIB metadata, update the annotation module, run shim fixture tests, publish shim artifacts locally, or debug any native shim build failure. Also trigger when the user mentions "shim", "cinterop", "native interop", "grpc shim", "protobuf shim", "KLIB patcher", "overlap archives", "native-deps", "Bazel shim build", or "shim verification".

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Use Teamcity · kotlin bundle
Interact with the kotlinx-rpc TeamCity CI/CD project using the `teamcity` CLI. Use this skill whenever the user wants to trigger builds, check build status, view build logs, monitor failures, manage the build queue, inspect agents, or do anything related to TeamCity CI. Also use it when the user mentions "TC", "TeamCity", "CI build", "run build", "build status", "build log", "trigger build", "check CI", or references a build configuration name or ID. Trigger even if the user doesn't say "TeamCity" explicitly -- if they ask about CI status, build failures, or want to run something on CI rather than locally, this is the right skill. Do NOT use this skill for local Gradle builds -- use `running_gradle_builds` or `running_gradle_tests` instead.

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Use Youtrack · kotlin bundle
General-purpose YouTrack operations for the kotlinx-rpc project (KRPC). Use this skill whenever the user wants to search, read, update, comment on, link, tag, or otherwise interact with existing YouTrack issues — anything that isn't creating a brand new issue. Also use it when the user asks about issue status, sprint progress, who's working on what, backlog queries, or wants to browse/filter issues. Trigger this even if the user doesn't say "YouTrack" explicitly — if they mention a KRPC-### issue ID, ask about tickets, want to check on an issue, update a status, or log work, this is the right skill. Do NOT use this skill for creating new issues — use file-youtrack-issue instead.

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Gradle Expert · kotlin bundle
Provides expert build engineer guidance on Gradle Kotlin DSL scripts, plugin development, and deep internals research; use for build failures, compilation errors, dependency conflicts, or complex build authoring. Do NOT use for executing builds/tests (use `running_gradle_builds`/`running_gradle_tests`) or dependency graph auditing.

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Commit Changes · kotlin
Guides commit message writing for the kotlinx-rpc project. Use this skill whenever committing code, writing commit messages, or when the user asks about commit conventions. Also use it when reviewing PRs for commit message quality. Triggers on: /commit, "commit", "commit message", "git commit", writing changelogs from commits.

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Use Develocity · kotlin
Query and analyze kotlinx-rpc build scans, test results, and failure patterns from the Develocity server (ge.jetbrains.com) using MCP tools. Use this skill whenever the user wants to look at build scans, investigate CI failures across builds, check build cache hit rates, analyze flaky tests, find recurring failure patterns, or query build performance history. Also trigger when the user mentions "Develocity", "build scan", "GE", "ge.jetbrains.com", "build cache stats", "flaky tests", "failure groups", or asks about build trends, test stability, or CI health. Trigger even if the user doesn't say "Develocity" explicitly -- if they want to look at historical build data, cross-build test analysis, or failure aggregation, this is the right skill. Do NOT use this skill for running local Gradle builds -- use `running_gradle_builds` or `running_gradle_tests` instead. Do NOT use this skill for TeamCity build triggering or queue management -- use `use-teamcity`.

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File Youtrack Issue · kotlin bundle
File YouTrack issues for the kotlinx-rpc project (KRPC). Use this skill whenever the user wants to create a bug report, feature request, task, or any issue in YouTrack for kotlinx-rpc. Also use it when the user mentions filing a ticket, reporting a bug, creating a task, logging an issue, or tracking work in YouTrack — even if they don't say "YouTrack" explicitly but the context is clearly about issue tracking for this project. Covers choosing the right issue type, scope, priority, tags, and writing well-structured descriptions that match the team's conventions.

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Running Gradle Tests · kotlin bundle
Executes and diagnoses Gradle tests with high-precision `--tests` filtering, surgical per-test failure isolation, and full stack traces; ALWAYS use instead of `./gradlew test` for test execution, failure investigation, and post-mortem analysis. Do NOT use for general build lifecycle tasks (use `running_gradle_builds`) or dependency auditing.

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Running Gradle Builds · kotlin bundle
Executes and orchestrates Gradle builds with background management, surgical task output capturing, and structured failure diagnostics; ALWAYS use instead of `./gradlew` for core lifecycle tasks (build, assemble), dev servers, and troubleshooting. Do NOT use for running tests (use `running_gradle_tests`) or dependency graph auditing.

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Run Local Verifications · kotlin bundle
Determine which LOCAL verification checks to run for kotlinx-rpc changes and execute them on the developer's machine. TeamCity builds and GitHub Actions workflows are out of scope -- this skill covers only what can and should be run locally before pushing. Use this skill whenever changes are made to the codebase and you need to verify correctness before committing or opening a PR. Also use it when the user asks to "run checks", "verify changes", "run verifications", "what checks do I need", "validate my changes", "pre-PR checks", or "local checks". Trigger proactively after completing any code modification task -- even if the user doesn't explicitly ask, suggest which verifications are relevant based on what changed.

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Managing Gradle Dependencies · kotlin
Audits and manages Gradle dependency graphs with high-resolution update checks, transitive tree analysis, and Maven Central discovery; use for dependency auditing, finding stable updates, and resolving GAV coordinates. Do NOT use for exploring dependency source code (use `searching_dependency_sources`) or running builds.

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Researching Gradle Internals · kotlin
Searches and retrieves official Gradle User Guide, DSL Reference, and internal engine source code authoritatively; use for researching core Gradle features, verifying behavior, and deep-diving into internals. Do NOT use for project dependency source exploration (use `searching_dependency_sources`) or running builds.

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Searching Dependency Sources · kotlin
Explores and searches source code of all external library dependencies, plugins, and Gradle internals via indexed symbol, full-text, and glob search; STRONGLY PREFERRED for understanding APIs, finding class/method definitions, and reading implementation logic. Do NOT use for project source code (use grep), Gradle documentation (use `researching_gradle_internals`), or Maven Central discovery (use `managing_gradle_dependencies`).

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Introspecting Gradle Projects · kotlin bundle
Uncovers Gradle project structure, task hierarchies, and resolved property values using core Gradle diagnostic tools; use for mapping modules, listing runnable tasks, and auditing build configuration. Do NOT use for running builds/tests or source code exploration.

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Interacting With Project Runtime · kotlin
Provides a persistent, project-aware Kotlin REPL for rapid logic verification and prototyping within the project's JVM classpath; use for testing dynamic behavior, prototyping snippets, or rendering Compose UI previews. Do NOT use for exploring library APIs (prefer `searching_dependency_sources`) or running Gradle builds.

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Verify Compiler Plugin Compatibility · kotlin bundle
Verify that the kotlinx-rpc compiler plugin compiles successfully against multiple Kotlin compiler versions, and fix any incompatibilities found. Use this skill whenever the user wants to check compiler plugin compatibility across Kotlin versions, test a new Kotlin version, fix compiler plugin build failures after a Kotlin upgrade, ensure the CSM templates produce valid code for all supported versions, or test against Kotlin Master. Trigger on phrases like "verify compiler plugin", "check compatibility", "test Kotlin versions", "compiler plugin broken", "fix for Kotlin X.Y", "support new Kotlin version", or "Kotlin master".

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22 published skills