kotlin-testing

kotlin-testing is a skill for Claude Code, Kiro from masrisystems/dot-agents. It costs 38 tokens per session (4,786 once invoked), scanned A, original, no licence file.

A guide to testing Kotlin programs with Kotest, MockK, coroutines, property-based tests, and Kover coverage. It uses test-driven development (TDD), where tests are written before or alongside the code.

In plain words
What is it for?
Use it when writing or improving Kotlin tests, designing test cases, or applying TDD to Kotlin code.
Why use it?
It helps avoid inconsistent Kotlin tests and makes it easier to check asynchronous code, mocked dependencies, and test coverage.

Skill for Claude CodeKiro

Written for Claude Code and Kiro: shipped in a Claude Code plugin, but also installed under .kiro/.

Part of the ecc plugin — 70 skills, 71 commands, 55 agents, 1 MCP server 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 skills/masrisystems/dot-agents/kotlin-testing
Any agent
npx skills add masrisystems/dot-agents --skill kotlin-testing
Clone the repo
git clone --depth 1 https://github.com/masrisystems/dot-agents

Made for: Claude Code, Kiro.

Or install ecc, the plugin that ships this one along with the rest of its 70 skills, 71 commands, 55 agents, 1 MCP server.

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 kotlin-testing

README.md
[![agentmods](https://agentmods.dev/badge/skills/masrisystems/dot-agents/kotlin-testing.svg)](https://agentmods.dev/skills/masrisystems/dot-agents/kotlin-testing)
Your own site
<a href="https://agentmods.dev/skills/masrisystems/dot-agents/kotlin-testing"><img src="https://agentmods.dev/badge/skills/masrisystems/dot-agents/kotlin-testing.svg" alt="Measured on agentmods" height="20"></a>
Per session 38 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 4,786 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin unknown 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 $0.00038 $0.04786
Opus 5 $0.00019 $0.02393
Sonnet 5 $0.00008 $0.00957
Haiku 4.5 $0.00004 $0.00479

Measured 2d ago against content hash 46f9f7da6a63, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

kotlin-testing 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.

catalogs/ecc/.kiro/skills/kotlin-testing/SKILL.md · 825 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

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 · 825 lines · 38 tokens per session scan A 46f9f7da6a63

Subscribe to this mod's changes

kotlin-testing is a skill published in the GitHub repository masrisystems/dot-agents (0 stars, last pushed 4d ago), with no licence file. It adds 38 tokens to every session and 4,786 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 2026-09-03.