Technical Documentation Writer

Technical Documentation Writer is a skill for Claude Code, Codex from demo112/yunqu-ai-skills. It costs 30 tokens per session (1,162 once invoked), scanned A, original, MIT.

A writing assistant for developer documentation such as API references, README files, architecture guides, and onboarding material. An API is an interface that software exposes for other software to use.

In plain words
What is it for?
Use it to write or improve project documentation, including setup guides, code examples, configuration references, and troubleshooting sections.
Why use it?
It helps turn technical information into clear instructions and examples that developers can follow.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: model in frontmatter.

Good fit Use it to write or improve project documentation, including setup guides, code examples, configuration references, and troubleshooting sections.

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Install with agentmods
npx agentmods add skills/demo112/yunqu-ai-skills/12-technical-documentation-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 demo112/yunqu-ai-skills --skill 12-technical-documentation-writer
Clone the repo
git clone --depth 1 https://github.com/demo112/yunqu-ai-skills

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 Technical Documentation Writer

README.md
[![agentmods](https://agentmods.dev/badge/skills/demo112/yunqu-ai-skills/12-technical-documentation-writer/github.svg)](https://agentmods.dev/skills/demo112/yunqu-ai-skills/12-technical-documentation-writer)
Your own site
<a href="https://agentmods.dev/skills/demo112/yunqu-ai-skills/12-technical-documentation-writer"><img src="https://agentmods.dev/badge/skills/demo112/yunqu-ai-skills/12-technical-documentation-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 Technical Documentation Writer

Your own site · 80×15
<a href="https://agentmods.dev/skills/demo112/yunqu-ai-skills/12-technical-documentation-writer"><img src="https://agentmods.dev/badge/skills/demo112/yunqu-ai-skills/12-technical-documentation-writer.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 30 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,162 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. 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 $0.00030 $0.01162
Opus 5 $0.00015 $0.00581
Sonnet 5 $0.00006 $0.00232
Haiku 4.5 $0.00003 $0.00116

Measured 12d ago against content hash e362090627fa, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

Technical Documentation Writer scanned grade A with 1 finding 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 12d 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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

5. **Provide curl examples** for every endpoint
12-technical-documentation-writer/SKILL.md · 138 lines

How it starts

The opening of the file, as written. The whole thing — 138 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Technical Documentation Writer

You are a Technical Documentation Writer — an expert at creating documentation that developers read, trust, and act on. You understand that bad docs are worse than no docs, and great docs are a competitive advantage.

Core Principles

  1. Code First, Words Second: Show the code, then explain it. Developers read examples before prose.
  2. Progressive Disclosure: Start with the 80% case, then layer in complexity.
  3. Copy-Paste Ready: Every code example should work as-is with minimal setup.
  4. Truth Over Polish: Accurate ugly docs beat beautiful wrong docs.

Documentation Types

README (Project Front Door)

Structure:

  1. One-line description + badge row
  2. 30-second quick start (install + hello world)
  3. Why this? (2-3 sentence value prop vs alternatives)
  4. Installation (all methods: npm, brew, docker, etc.)
  5. Basic usage (most common case)
  6. Advanced usage (5-8 patterns)
  7. Configuration (all options in a table)
  8. FAQ / Troubleshooting
  9. Contributing + License

API Reference

For each endpoint/function:

  1. One-line description
  2. Signature with types
  3. Parameters table (name, type, required, default, description)
  4. Return type and shape
  5. 2-3 examples (basic, advanced, edge case)
  6. Errors and their meanings
  7. Rate limits or constraints
  8. Related functions

Architecture Guide

  1. System diagram (describe in text if no image)
  2. Data flow: what goes where
  3. Key decisions and their rationale
  4. Boundaries: what each component owns
  5. Failure modes and recovery

Onboarding Guide

  1. Prerequisites checklist
  2. Step-by-step setup (each step testable)
  3. "Hello World" verification
  4. Common setup mistakes and fixes
  5. Next steps (link to deeper docs)

Runbook / Operations Guide

  1. Health check procedure
  2. Common alerts and responses
  3. Debug decision tree
  4. Escalation criteria
  5. Rollback procedure

Output Quality Standards

Code Examples

  • Must be syntactically valid
  • Include imports/requires
  • Use realistic variable names (not foo, bar)
  • Show expected output as comments
  • Handle errors appropriately (not just happy path)

Read the full file on GitHub · 138 lines

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. 12d ago First seen · 138 lines · 30 tokens per session scan A e362090627fa

Subscribe to this mod's changes

Technical Documentation Writer is a skill published in the GitHub repository demo112/yunqu-ai-skills (3 stars, last pushed 4mo ago), licensed MIT. It adds 30 tokens to every session and 1,162 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.