api-doc-writer

api-doc-writer is a skill for Claude Code, Codex from klhq/skillmux. It costs 32 tokens per session (70 once invoked), scanned A, original, MIT.

A skill that reads code for REST API endpoints and writes API documentation. A REST API is a web interface that lets programs exchange requests and responses.

In plain words
What is it for?
It is for documenting available endpoints, including examples of what callers send and what the API returns.
Why use it?
It turns endpoint behaviour already present in code into documentation without requiring the author to describe every request and response by hand.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit It is for documenting available endpoints, including examples of what callers send and what the API returns.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/klhq/skillmux/api-doc-writer
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.

Any agent
npx skills add klhq/skillmux --skill api-doc-writer
Clone the repo
git clone --depth 1 https://github.com/klhq/skillmux

Made for: Claude Code, Codex.

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 api-doc-writer

README.md
[![agentmods](https://agentmods.dev/badge/skills/klhq/skillmux/api-doc-writer/github.svg)](https://agentmods.dev/skills/klhq/skillmux/api-doc-writer)
Your own site
<a href="https://agentmods.dev/skills/klhq/skillmux/api-doc-writer"><img src="https://agentmods.dev/badge/skills/klhq/skillmux/api-doc-writer/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.

agentmods 80×15 button for api-doc-writer

Your own site · 80×15
<a href="https://agentmods.dev/skills/klhq/skillmux/api-doc-writer"><img src="https://agentmods.dev/badge/skills/klhq/skillmux/api-doc-writer.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 32 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 70 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 $0.00032 $0.00070
Opus 5.5 $0.00013 $0.00028
Sonnet 5.5 $0.00006 $0.00014
Haiku 4.5 $0.00003 $0.00007

Measured yesterday against content hash add7daa93071, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

api-doc-writer 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.

eval/multilingual/vault/api-doc-writer/SKILL.md · 9 lines

What it actually says

API 문서 작성

코드에서 REST API 엔드포인트를 읽어 요청과 응답 예시가 포함된 API 문서를 작성합니다.

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. yesterday First seen · 9 lines · 32 tokens per session scan A add7daa93071

Subscribe to this mod's changes

api-doc-writer is a skill published in the GitHub repository klhq/skillmux (2 stars, last pushed yesterday), licensed MIT. It adds 32 tokens to every session and 70 once invoked, about $0.0001 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 2026-10-25.

Related

Other skills, from other repositories

design-mcp-server

Design the tool surface, resources, and service layer for a new MCP server. Use when starting a new server, planning a major feature expansion, or when the user describes a domain/API they want to expose via MCP. Produces a design doc at docs/design.md that drives implementation.

cyanheads/obsidian-mcp-server · 62 tokens

api-telemetry

Catalog of OpenTelemetry instrumentation built into framework @cyanheads/mcp-ts-core — spans, metrics, completion logs, env config, runtime caveats, custom instrumentation patterns, and cardinality rules. Use when enabling OTel export, adding custom spans or metrics in services, debugging missing telemetry, looking up…

cyanheads/obsidian-mcp-server · 85 tokens

api-mirror

Stand up a persistent, self-refreshing local mirror of a bulk upstream dataset with the MirrorService (@cyanheads/mcp-ts-core/mirror). Use when a server wraps a large or slow API and should query a synced local index (embedded SQLite + FTS5) instead of paginating the live API per request.

cyanheads/obsidian-mcp-server · 68 tokens

api-services

API reference for built-in service providers (LLM, Speech, Graph). Use when looking up service interfaces, provider capabilities, or integration patterns.

cyanheads/obsidian-mcp-server · 32 tokens

cmdb-patterns

Create ServiceNow CIs and cmdbrelci relationships, walk upstream/downstream impact, detect orphan/stale CIs, and align discovered CIs with the proper sysclassname hierarchy.

serac-labs/serac · 43 tokens

csm-patterns

Build ServiceNow Customer Service Management — customeraccount, customercontact, sncustomerservicecase routing, service entitlements with usage decrement, and Customer Portal case submission widgets.

serac-labs/serac · 39 tokens