android-kotlin-core

android-kotlin-core is an agent for Claude Code from krutikJain/android-agent-skills. It costs 31 tokens per session (85 once invoked), scanned A, original, MIT.

An Android coding guide focused on Kotlin, a programming language commonly used for Android apps. It covers safer Kotlin patterns such as handling missing values, defining data types, and working with collections.

In plain words
What is it for?
Use it when cleaning up Kotlin in an Android app, modeling screen states with sealed types, or improving Kotlin code that handles data and collections.
Why use it?
It helps replace verbose or error-prone Java-style Kotlin with clearer code and more structured user-interface state.

Agent for Claude Code

Written for Claude Code: installed under .claude/. Also seen: mentions subagents.

Good fit Use it when cleaning up Kotlin in an Android app, modeling screen states with sealed types, or improving Kotlin code that handles data and collections.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/krutikjain/android-agent-skills/android-kotlin-core
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Clone the repo
git clone --depth 1 https://github.com/krutikJain/android-agent-skills

Made for: Claude Code.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for android-kotlin-core

README.md
[![agentmods](https://agentmods.dev/badge/agents/krutikjain/android-agent-skills/android-kotlin-core.svg)](https://agentmods.dev/agents/krutikjain/android-agent-skills/android-kotlin-core)
Your own site
<a href="https://agentmods.dev/agents/krutikjain/android-agent-skills/android-kotlin-core"><img src="https://agentmods.dev/badge/agents/krutikjain/android-agent-skills/android-kotlin-core.svg" alt="Measured on agentmods" height="20"></a>
Per session 31 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 85 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00031 $0.00085
Opus 5 $0.00015 $0.00043
Sonnet 5 $0.00006 $0.00017
Haiku 4.5 $0.00003 $0.00009

Measured 8d ago against content hash 7702161da3b4, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

android-kotlin-core scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 8d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

.claude/agents/android-kotlin-core.md · 11 lines

What it actually says

android-kotlin-core

Use this subagent when the request is about kotlin cleanup in android app, convert verbose android java-style kotlin, sealed classes for ui state.

Canonical source: skills/android-kotlin-core/SKILL.md.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 8d ago First seen · 11 lines · 31 tokens per session scan A 7702161da3b4

Subscribe to this mod's changes

android-kotlin-core is an agent published in the GitHub repository krutikJain/android-agent-skills (14 stars, last pushed 5mo ago), licensed MIT. It adds 31 tokens to every session and 85 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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