A plugin that answers Kotlin and Java library questions using the libraries' published source files and documentation. It can inspect signatures, documentation, dependencies, and source code.

Use it to look up APIs, read KDoc, inspect dependency trees, and search the source of Maven or Gradle libraries.

It helps avoid relying on memory or incomplete documentation when you need to understand a library. The answers are based on the actual published version.

kotlin-lib — Plugin by aoreshkov

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.

Claude Code

/plugin marketplace add aoreshkov/kotlin-lib-mcp

agentmods

npx agentmods add plugins/aoreshkov/kotlin-lib-mcp/plugin

Clone the repo

git clone --depth 1 https://github.com/aoreshkov/kotlin-lib-mcp

Made for: Claude Code.

Per session not measured What this adds to a session before it is invoked.

When invoked not measured Not applicable: nothing here is loaded into a session.

Security scan A 0 findings. Scan, not verified.

Origin original No closer match found in the catalogue.

Security

Grade A, and why

kotlin-lib 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 yesterday.

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.

plugin/.claude-plugin/plugin.json · 16 lines

What it actually says

{
  "$schema": "https://json.schemastore.org/claude-code-plugin-manifest.json",
  "name": "kotlin-lib",
  "displayName": "Kotlin & Java Library Sources",
  "version": "0.2.0",
  "description": "Answers Kotlin/Java library questions from the real published sources jar — resolved signatures, KDoc, dependency tree and source search — instead of recalling them.",
  "author": {
    "name": "Atanas Oreshkov",
    "url": "https://github.com/aoreshkov"
  },
  "homepage": "https://github.com/aoreshkov/kotlin-lib-mcp",
  "repository": "https://github.com/aoreshkov/kotlin-lib-mcp",
  "license": "Apache-2.0",
  "keywords": ["kotlin", "java", "jvm", "maven", "gradle", "kdoc", "api", "documentation", "mcp"]
}

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.

yesterday First seen · 16 lines scan A fd97924f1f28

Subscribe to this mod's changes

kotlin-lib is a plugin published in the GitHub repository aoreshkov/kotlin-lib-mcp (8 stars, last pushed 3d ago), licensed Apache-2.0. Its token cost is not measured: this kind of file is read by the harness, not the model. 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.

Backend and APIs Data and AI Memory and context analysis-api claude kdoc kotlin kotlin-multiplatform llm-tools

kotlin-lib

Getting it into your agent

Grade A, and why

Nothing flagged

What it actually says

What this file has done since we first saw it

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