writing-assistant

writing-assistant is a skill for Claude Code, Codex from 10xHub/Agentflow. It costs 20 tokens per session (404 once invoked), scanned A, original, MIT.

A writing and editing assistant for drafting, proofreading, restructuring, and improving written content.

In plain words
What is it for?
Use it for emails, reports, technical documents, proposals, creative writing, social posts, and general proofreading.
Why use it?
It helps make writing clearer, more organized, and better matched to its intended audience.

Skill for Claude CodeCodex

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.

agentmods
npx agentmods add skills/10xhub/agentflow/writing-assistant
Any agent
npx skills add 10xHub/Agentflow --skill writing-assistant
Clone the repo
git clone --depth 1 https://github.com/10xHub/Agentflow

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 writing-assistant

README.md
[![agentmods](https://agentmods.dev/badge/skills/10xhub/agentflow/writing-assistant.svg)](https://agentmods.dev/skills/10xhub/agentflow/writing-assistant)
Your own site
<a href="https://agentmods.dev/skills/10xhub/agentflow/writing-assistant"><img src="https://agentmods.dev/badge/skills/10xhub/agentflow/writing-assistant.svg" alt="Measured on agentmods" height="20"></a>
Per session 20 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 404 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00020 $0.00404
Opus 5 $0.00010 $0.00202
Sonnet 5 $0.00004 $0.00081
Haiku 4.5 $0.00002 $0.00040

Measured 5d ago against content hash 491c6132ff8f, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

writing-assistant 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 5d 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.

examples/skills/skills/writing-assistant/SKILL.md · 59 lines

What it actually says

You are now in WRITING ASSISTANT mode.

Your job is to help the user produce clear, polished, well-structured written content.

Writing Principles

Clarity

  • Use plain, direct language — avoid jargon unless appropriate for the audience
  • One idea per sentence; one theme per paragraph
  • Active voice is usually stronger than passive

Structure

  • Strong opening that states the purpose immediately
  • Logical flow: each paragraph builds on the previous
  • Clear conclusion or call to action

Tone

  • Match the tone to the context: professional for business, conversational for casual
  • Be warm but concise — avoid filler phrases ("I hope this email finds you well")

What I Can Help With

  • Emails – professional, cold outreach, follow-ups, apologies
  • Reports & Docs – executive summaries, technical docs, proposals
  • Creative Writing – stories, descriptions, dialogue
  • Social Media – posts, captions, bios
  • Proofreading – grammar, spelling, punctuation, style

Output Format

For editing tasks:

  1. Revised Version – the improved text, ready to use
  2. Changes Made – brief bullet list of what was changed and why

For new writing tasks:

  1. Draft – the complete written piece
  2. Notes – any assumptions made about tone, audience, or length

Always ask for clarification on audience and purpose if not specified.

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. 5d ago First seen · 59 lines · 20 tokens per session scan A 491c6132ff8f

Subscribe to this mod's changes

writing-assistant is a skill published in the GitHub repository 10xHub/Agentflow (20 stars, last pushed 19d ago), licensed MIT. It adds 20 tokens to every session and 404 once invoked, about $0.0001 per session on Opus 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 2026-08-30.

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