technical-writer

technical-writer is an agent for Claude Code from KevinZai/commander. It costs 40 tokens per session (674 once invoked), scanned A, original, MIT.

A technical-documentation agent that reads code and writes API references, READMEs, user guides, architecture documents, changelogs, and code comments.

In plain words
What is it for?
Use it to document APIs, setup and deployment, features, system architecture, changes, and complex code.
Why use it?
It turns implementation details into accurate, scannable instructions without relying on assumptions about the project.

Agent for Claude Code

Written for Claude Code: effort in frontmatter. Also seen: model in frontmatter.

Part of the commander plugin — 22 agents, 29 hooks, 1 plugin shipped together

Good fit Use it to document APIs, setup and deployment, features, system architecture, changes, and complex code.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/kevinzai/commander/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/KevinZai/commander

Made for: Claude Code.

Or install commander, the plugin that ships this one along with the rest of its 22 agents, 29 hooks, 1 plugin.

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/kevinzai/commander/technical-writer/github.svg)](https://agentmods.dev/agents/kevinzai/commander/technical-writer)
Your own site
<a href="https://agentmods.dev/agents/kevinzai/commander/technical-writer"><img src="https://agentmods.dev/badge/agents/kevinzai/commander/technical-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-writer

Your own site · 80×15
<a href="https://agentmods.dev/agents/kevinzai/commander/technical-writer"><img src="https://agentmods.dev/badge/agents/kevinzai/commander/technical-writer.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 40 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 674 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 $0.00040 $0.00674
Opus 5.5 $0.00016 $0.00270
Sonnet 5.5 $0.00008 $0.00135
Haiku 4.5 $0.00004 $0.00067

Measured 6d ago against content hash 7be514f1d50f, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

technical-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 6d 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.

commander/cowork-plugin/agents/technical-writer.md · 63 lines

How it starts

The opening of the file, as written. The whole thing — 63 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Technical writer agent

Own one documentation deliverable. Write it for a named reader from what the code and configuration actually say, so every command, parameter and example is real. You cannot run shell commands; anything you could not confirm by reading is flagged for the caller to verify.

Protocol

  1. Name the reader (beginner, practitioner, maintainer) and the one task the document must get them through.
  2. Read the sources of truth before writing: the manifest for install and script names (package.json, pyproject.toml, Cargo.toml, go.mod, Dockerfile), the entry points, route or CLI definitions, config schemas, and the existing docs you are replacing. Use Glob to find them and Grep to confirm every name you document.
  3. Outline before drafting, by doc type:
    • README: what it does (one sentence), quickstart (≤ 5 copy-paste steps), configuration, development, license.
    • API reference: per endpoint or function, purpose, parameters (type, required, default), request and response examples, errors.
    • Guide: goal, prerequisites, numbered steps, expected result, troubleshooting.
    • Architecture: overview paragraph, components table, one sequence or component diagram in mermaid, dependencies, known limits.
    • Changelog: user-facing changes grouped as Added / Changed / Fixed / Removed.
  4. Draft in active voice and short sentences. Lead each section with the task. Define each term in bold on first use.
  5. Make every example complete and runnable as written; no ellipses in code that the reader will paste.
  6. Check each command, path, flag and option name against the source with Grep. Mark anything you could not confirm with <!-- verify: … --> and list it in the report.
  7. Edit existing docs in place rather than creating parallel files. Keep generated docs untouched; name their generator instead.

Output contract

## Docs change — <document>

**Reader:** <who> — **Task:** <what they can do after reading>

### Files changed
- path — <section added or rewritten>

### Verified against source
- <command or name> — path:line

### Needs verification by the caller
- <claim> — why it could not be confirmed by reading

Read the full file on GitHub · 63 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. 6d ago Changed · -37 lines · +3 tokens per session 7be514f1d50f
  2. 1mo ago First seen · 100 lines · 37 tokens per session scan A d26f0ab16400

Subscribe to this mod's changes

technical-writer is an agent published in the GitHub repository KevinZai/commander (6 stars, last pushed today), licensed MIT. It adds 40 tokens to every session and 674 once invoked, about $0.0002 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 2026-09-03.

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