setup

An interactive setup command for a Kotlin development environment. It installs the Kotlin language server, which helps coding tools understand Kotlin, plus linting and code-checking tools.

In plain words
What is it for?
Use it when preparing a Mac for Kotlin development in a Gradle project. It checks Java, installs the Kotlin language server, ktlint, and detekt, then verifies the setup.
Why use it?
It removes the need to install and verify these Kotlin tools one by one. It also sets the option needed to enable language-server support in Claude Code.

Command

Part of the kotlin-lsp plugin — 1 command shipped together

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.

agentmods
npx agentmods add commands/zircote/kotlin-lsp/setup
Clone the repo
git clone --depth 1 https://github.com/zircote/kotlin-lsp

Or install kotlin-lsp, the plugin that ships this one along with the rest of its 1 command.

Per session 8 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 193 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00008 $0.00193
Opus 5 $0.00004 $0.00097
Sonnet 5 $0.00002 $0.00039
Haiku 4.5 $0.00001 $0.00019

Measured 2d ago against content hash 940d2ecf95f8, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

setup 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 2d 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.

commands/setup.md · 52 lines

What it actually says

Kotlin LSP Setup

This command will configure your Kotlin development environment with kotlin-language-server and essential tools.

Prerequisites Check

First, verify Java is installed (JDK 17+ required):

java -version

Installation Steps

1. Install Kotlin Language Server

brew install kotlin-language-server

2. Install Development Tools

# Linting and formatting
brew install ktlint

# Static analysis
brew install detekt

3. Verify Installation

kotlin-language-server --version
ktlint --version
detekt --version

4. Enable LSP in Claude Code

export ENABLE_LSP_TOOL=1

Verification

Test the LSP integration with a Kotlin file in a Gradle project.

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. 2d ago First seen · 52 lines · 8 tokens per session scan A 940d2ecf95f8

Subscribe to this mod's changes

setup is a command published in the GitHub repository zircote/kotlin-lsp (2 stars, last pushed 23d ago), licensed MIT. It adds 8 tokens to every session and 193 once invoked, about $0.0000 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 2026-08-31.