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.
npx skills add 10xHub/Agentflow --skill writing-assistantgit clone --depth 1 https://github.com/10xHub/AgentflowWrote 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.
[](https://agentmods.dev/skills/10xhub/agentflow/writing-assistant)<a href="https://agentmods.dev/skills/10xhub/agentflow/writing-assistant"><img src="https://agentmods.dev/badge/skills/10xhub/agentflow/writing-assistant/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.
<a href="https://agentmods.dev/skills/10xhub/agentflow/writing-assistant"><img src="https://agentmods.dev/badge/skills/10xhub/agentflow/writing-assistant.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00043 | $0.00409 |
| Opus 5.5 | $0.00017 | $0.00164 |
| Sonnet 5.5 | $0.00009 | $0.00082 |
| Haiku 4.5 | $0.00004 | $0.00041 |
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 15d 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.
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:
- Revised Version – the improved text, ready to use
- Changes Made – brief bullet list of what was changed and why
For new writing tasks:
- Draft – the complete written piece
- Notes – any assumptions made about tone, audience, or length
Always ask for clarification on audience and purpose if not specified.
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.
- 15d ago Changed · -10 lines · +23 tokens per session 7706eb96c605
- 1mo ago First seen · 59 lines · 20 tokens per session scan A 491c6132ff8f
writing-assistant is a skill published in the GitHub repository 10xHub/Agentflow (21 stars, last pushed 15d ago), licensed MIT. It adds 43 tokens to every session and 409 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 2026-08-30.
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