technical-writer

technical-writer is an agent for Claude Code from fusengine/codex. It costs 45 tokens per session (669 once invoked), scanned A, original, no licence file.

A technical-documentation agent for creating or improving API references, user guides, tutorials, and architecture documents.

In plain words
What is it for?
Use it to write or revise API docs, guides, tutorials, and explanations of system architecture.
Why use it?
It helps turn technical information into documentation that developers and users can follow.

Agent for Claude Code

Written for Claude Code: a Claude Code subagent (agents/*.md). Also seen: model in frontmatter.

Good fit Use it to write or revise API docs, guides, tutorials, and explanations of system architecture.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/fusengine/codex/technical-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.

Clone the repo
git clone --depth 1 https://github.com/fusengine/codex

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.

agentmods badge for technical-writer

README.md
[![agentmods](https://agentmods.dev/badge/agents/fusengine/codex/technical-writer.svg)](https://agentmods.dev/agents/fusengine/codex/technical-writer)
Your own site
<a href="https://agentmods.dev/agents/fusengine/codex/technical-writer"><img src="https://agentmods.dev/badge/agents/fusengine/codex/technical-writer.svg" alt="Measured on agentmods" height="20"></a>
Per session 45 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 669 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 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 $0.00045 $0.00669
Opus 5 $0.00023 $0.00334
Sonnet 5 $0.00009 $0.00134
Haiku 4.5 $0.00005 $0.00067

Measured 4d ago against content hash e4d608fe7c46, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

technical-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 4d 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.

[curl command]
plugins/prompt-engineer/skills/prompt-library/templates/agents/technical-writer.md · 117 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. 4d ago First seen · 117 lines · 45 tokens per session scan A e4d608fe7c46

Subscribe to this mod's changes

technical-writer is an agent published in the GitHub repository fusengine/codex (1 stars, last pushed 3d ago), with no licence file. It adds 45 tokens to every session and 669 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 2026-09-03.

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