A guide for writing KDoc, Kotlin’s built-in documentation format, on public classes, functions, and other API declarations.

Use it when adding, generating, or improving documentation for Kotlin code, especially undocumented public declarations.

It helps keep Kotlin code understandable to people who use or maintain its public API.

How modelcontextprotocol/kotlin-sdk configures Claude Code

Reuse

Borrowing it

Nothing to install: this file belongs to modelcontextprotocol/kotlin-sdk. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file

curl -O https://raw.githubusercontent.com/modelcontextprotocol/kotlin-sdk/main/.claude/skills/kdoc/SKILL.md

Clone the repo

git clone --depth 1 https://github.com/modelcontextprotocol/kotlin-sdk

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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/modelcontextprotocol/kotlin-sdk/kdoc/github.svg)](https://agentmods.dev/skills/modelcontextprotocol/kotlin-sdk/kdoc)

Your own site

<a href="https://agentmods.dev/skills/modelcontextprotocol/kotlin-sdk/kdoc"><img src="https://agentmods.dev/badge/skills/modelcontextprotocol/kotlin-sdk/kdoc/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

Your own site · 80×15

<a href="https://agentmods.dev/skills/modelcontextprotocol/kotlin-sdk/kdoc"><img src="https://agentmods.dev/badge/skills/modelcontextprotocol/kotlin-sdk/kdoc.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 73 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 723 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. Third-party audits

NVIDIA SkillSpector pass 7 Sept 2026

How audits are shown

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.

Model	Per session	Once invoked
Fable 5.1	$0.00073	$0.00723
Opus 5.5	$0.00029	$0.00289
Sonnet 5.5	$0.00015	$0.00145
Haiku 4.5	$0.00007	$0.00072

Measured 2mo ago against content hash af9516210bb7, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

kdoc 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 2mo 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/skills/kdoc/SKILL.md · 82 lines

The source is not reproduced here

A licence we could not identify

The repository carries a LICENSE file, but it is custom or dual enough that GitHub cannot name it and neither can this catalogue. Unknown terms are not permission, so the body is not copied here. Read the licence at the source and decide for yourself.

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.

2mo ago First seen · 82 lines · 73 tokens per session scan A af9516210bb7

Subscribe to this mod's changes

kdoc is a skill published in the GitHub repository modelcontextprotocol/kotlin-sdk (1,485 stars, last pushed 2d ago), with no licence file. It adds 73 tokens to every session and 723 once invoked, about $0.0003 per session on Opus 5.5. 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.

Kotlin and Swift Languages Writing and docs kotlin-multiplatform mcp

kdoc next to 6 skills from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
kdocmodelcontextprotocol/kotlin-sdk	Skill	1.5k	2d ago	none	A	73	Claude Code
compose-animationschrisbanes/skills	Skill	1.1k	yesterday	Apache-2.0	A	64	Claude Code
compose-focus-navigationchrisbanes/skills	Skill	1.1k	yesterday	Apache-2.0	A	41	Claude Code
release-kotlin-librarychrisbanes/skills	Skill	1.1k	yesterday	Apache-2.0	A	46	Claude Code
using-chrisbanes-skillschrisbanes/skills	Skill	1.1k	yesterday	Apache-2.0	A	38	Claude Code
kotlin-concurrency-and-flowchrisbanes/skills	Skill	1.1k	yesterday	Apache-2.0	A	60	Claude Code
kotlin-api-designchrisbanes/skills	Skill	1.1k	yesterday	Apache-2.0	A	46	Claude Code

kotlin-sdk: Skill for Claude Code