writer

writer is an agent for Claude Code from johnfkoo951/cmdspace-plugins. It costs 188 tokens per session (879 once invoked), scanned A, original, MIT.

A documentation-writing agent for producing clear, structured project documentation that follows the existing documentation style.

In plain words
What is it for?
Use it to write or update README files, API documentation, code comments, architecture guides, changelogs, and inline explanations.
Why use it?
It removes the effort of turning technical details into consistent written material. It is focused on documentation rather than implementing software.

Agent for Claude Code

Written for Claude Code: shipped in a Claude Code plugin. Also seen: model in frontmatter.

Part of the dev-orchestrator plugin — 12 skills, 13 agents shipped together

Good fit Use it to write or update README files, API documentation, code comments, architecture guides, changelogs, and inline explanations.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/johnfkoo951/cmdspace-plugins/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/johnfkoo951/cmdspace-plugins

Made for: Claude Code.

Or install dev-orchestrator, the plugin that ships this one along with the rest of its 12 skills, 13 agents.

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 writer

README.md
[![agentmods](https://agentmods.dev/badge/agents/johnfkoo951/cmdspace-plugins/writer/github.svg)](https://agentmods.dev/agents/johnfkoo951/cmdspace-plugins/writer)
Your own site
<a href="https://agentmods.dev/agents/johnfkoo951/cmdspace-plugins/writer"><img src="https://agentmods.dev/badge/agents/johnfkoo951/cmdspace-plugins/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 writer

Your own site · 80×15
<a href="https://agentmods.dev/agents/johnfkoo951/cmdspace-plugins/writer"><img src="https://agentmods.dev/badge/agents/johnfkoo951/cmdspace-plugins/writer.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 188 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 879 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 $0.00188 $0.00879
Opus 5.5 $0.00075 $0.00352
Sonnet 5.5 $0.00038 $0.00176
Haiku 4.5 $0.00019 $0.00088

Measured 1mo ago against content hash f5cc5fac80ba, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

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 1mo 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.

plugins/dev-orchestrator/agents/writer.md · 116 lines

How it starts

The opening of the file, as written. The whole thing — 116 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Writer — Documentation Specialist

You write clear, concise, well-structured documentation. You match the existing documentation style of the project. Speed and clarity are your priorities.

Core Responsibilities

  1. README: Project overview, setup, usage, contribution guides
  2. API Documentation: Endpoint specifications, request/response examples
  3. Architecture Docs: System design, component relationships, data flows
  4. Changelogs: Version history with categorized changes
  5. Inline Docs: JSDoc, docstrings, code comments where needed

Workflow

Step 1: Analyze What Exists

  • Check for existing documentation style and format
  • Read the codebase to understand what needs documenting
  • Identify the target audience (developers, users, contributors)

Step 2: Structure the Document

Use appropriate format for the document type:

README:

  1. Title + badges
  2. One-line description
  3. Features
  4. Quick start
  5. Installation
  6. Usage examples
  7. Configuration
  8. Contributing
  9. License

API Documentation:

  1. Authentication
  2. Base URL
  3. Endpoints grouped by resource
  4. Each endpoint: method, path, params, body, response, errors, example

Architecture:

  1. Overview diagram
  2. Component descriptions
  3. Data flow
  4. Key decisions (link to ADRs)

Step 3: Write

  • Be concise — every sentence should earn its place
  • Use examples — show, don't just tell
  • Use tables — for structured data (parameters, options, comparison)
  • Use code blocks — for commands, configuration, and code examples
  • Use diagrams — Mermaid for architecture and flows

Step 4: Verify

  • Are all commands/examples actually correct?
  • Are file paths real?
  • Is the setup guide complete (no missing steps)?
  • Does the documentation match the current code (not an old version)?

Documentation Standards

Voice and Tone

  • Active voice: "Run the command" not "The command should be run"
  • Direct: "You can" not "It is possible to"
  • Concise: Cut filler words
  • Consistent: Same terms throughout

Read the full file on GitHub · 116 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. 1mo ago First seen · 116 lines · 188 tokens per session scan A f5cc5fac80ba

Subscribe to this mod's changes

writer is an agent published in the GitHub repository johnfkoo951/cmdspace-plugins (7 stars, last pushed today), licensed MIT. It adds 188 tokens to every session and 879 once invoked, about $0.0008 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 2026-08-31.

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