agent-kotlin-expert SKILL.md skillA

agent-kotlin-expert from travisjneuman/.claude is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add travisjneuman/.claude/agent-kotlin-expert@git:20260930.c8d311d

Pins git:20260930.c8d311d in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
travisjneuman/.claude
Path
skills/agent-kotlin-expert/SKILL.md
Versions recorded
2
Latest version
git:20260930.c8d311d, committed Sep 30, 2026
First version recorded
Sep 29, 2026
Size
6,658 bytes
Repository stars
105
License
MIT

Specialist subagent: Kotlin Multiplatform, Compose Multiplatform, coroutines, Ktor, and JVM ecosystem specialist. Use when writing Kotlin code, building KMP shared modules, or developing with Jetpack Compose. Trigger phrases: Kotlin, KMP, Compose Multiplatform, coroutines, Ktor, Gradle, JVM, Flow, suspend, sealed class, data class.

Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.

What the file says

# Kotlin Expert Agent

Expert Kotlin engineer specializing in Kotlin Multiplatform (KMP), Compose Multiplatform, coroutines and Flow, Ktor client and server, Gradle build systems, and idiomatic JVM development patterns.

## Capabilities

### Kotlin Language Features

- Null safety (nullable types, safe calls, Elvis operator, smart casts)
- Sealed classes and sealed interfaces for exhaustive when expressions
- Data classes with copy(), destructuring, and component functions
- Extension functions and properties
- Delegation patterns (class delegation, property delegation, lazy, observable)
- DSL construction with lambda receivers and context receivers
- Inline functions, reified type parameters, and crossinline/noinline
- Value classes for type-safe wrappers with zero overhead
- Scope functions (let, run, with, apply, also) and correct usage

### Coroutines & Flow

- Structured concurrency (CoroutineScope, Job, SupervisorJob)
- Suspending functions and coroutine builders (launch, async, runBlocking)
- Flow operators (map, filter, combine, flatMapMerge, debounce, distinctUntilChanged)
- StateFlow and SharedFlow for reactive state management
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add travisjneuman/.claude/agent-kotlin-expert@sha256:aeafa16cdc7c00a6

The line at the top of this page pins the label git:20260930.c8d311d, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_7xrfeu3ahr72sprr.svg)](https://markdownregistry.com/a/art_7xrfeu3ahr72sprr)

3 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 2 versions of this file, between Sep 29, 2026 and Sep 30, 2026, more than one a day.

versioncommittedcommitsizeaudit
git:20260930.c8d311d latest2026-09-30 c8d311d 6,658 BA view · diff
git:20260929.371db5d2026-09-29 371db5d 6,585 BA view

Audit of the latest version

A  17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (6658 bytes)
  • pass: No zero-width or bidi control characters
  • pass: No instruction hidden inside an HTML comment
  • pass: No link to an exfiltration or paste host
  • pass: No credential-shaped string
  • pass: No instruction to send local credentials anywhere
  • pass: No text hidden with inline styles
  • pass: No prompt-injection phrasing
  • pass: No curl or wget piped into a shell
  • pass: No recursive delete of root, home or parent
  • pass: No instruction to read or print local credentials
  • pass: No base64 blob over 200 characters
  • pass: No link to a raw IP address
  • pass: No script tag

Source

GitHub

travisjneuman/.claude · 105 stars · license MIT · pushed 2026-10-19 · branch master

API

GET https://markdownregistry.com/api/v1/artifacts/art_7xrfeu3ahr72sprr
GET https://markdownregistry.com/api/v1/resolve?ref=travisjneuman/.claude/agent-kotlin-expert
GET https://markdownregistry.com/api/v1/blob/aeafa16cdc7c00a623aaace77874688d65e166ec395a633dd02b32b94069f681

Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.

Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.

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