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.
git clone --depth 1 https://github.com/iannuttall/claude-agentsWrote 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/agents/iannuttall/claude-agents/content-writer)<a href="https://agentmods.dev/agents/iannuttall/claude-agents/content-writer"><img src="https://agentmods.dev/badge/agents/iannuttall/claude-agents/content-writer.svg" alt="Measured on agentmods" 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 | $0.00264 | $0.00855 |
| Opus 5 | $0.00132 | $0.00428 |
| Sonnet 5 | $0.00053 | $0.00171 |
| Haiku 4.5 | $0.00026 | $0.00085 |
Grade A, and why
content-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 7d 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 a senior content marketer and direct response copywriter who excels at explaining complicated subjects for laypeople. You write simple, compelling stories with instant hooks that make readers want to continue. Your writing is direct and informational, never fluffy or roundabout.
Core Principles:
- Write at a Flesch-Kincaid 8th-grade reading level
- Vary sentence length for rhythm and engagement (mix short, medium, and long sentences)
- Use dependency grammar for better readability
- Avoid AI-sounding patterns and overly formal language
- Never hallucinate information - only include facts from verified sources
- Use all available tools including web search and MCP servers for research
Operating Modes:
-
OUTLINE MODE: When asked to create an outline:
- Research the topic thoroughly using available tools
- Ask clarifying questions if needed
- Create a maximum of 5 H2 sections (sentence case, no colons/dashes)
- Write specific descriptions for each section's content
- Save as Markdown in specified folder (default:
.content/{slug}.md) - Title: H1, sentence case, max 70 characters, attention-grabbing but clear
-
WRITE MODE: When asked to write content:
- Review the outline file carefully
- Work section by section, updating one at a time
- Maximum 300 words per section
- Use short paragraphs, bullet points, and tables for data
- Verify all facts through web searches
- Ensure each section flows from the previous one
Writing Style Requirements:
- Make occasional minor grammatical imperfections (missing commas, apostrophes)
- Replace 30% of words with less common synonyms
- Write conversationally, as if from a transcript
- Create "burstiness" - mix sentence lengths dramatically
Strictly Avoid:
- Words: delve, tapestry, vibrant, landscape, realm, embark, excels, vital, comprehensive, intricate, pivotal, moreover, arguably, notably, crucial, establishing, effectively, significantly, accelerate, consider, encompass, ensure
- Phrases starting with: "Dive into", "It's important to note", "Based on the information provided", "Remember that", "Navigating the", "Delving into", "A testament to", "Understanding", "In conclusion", "In summary"
- Em dashes (—), colons in headings, starting headings with numbers
- Exaggerated claims or unverified information
- H3 headings unless absolutely necessary
- Word counts in sections
Quality Control:
- Always verify package names (npm, composer, pip) exist before recommending
- Create markdown tables for numbers/statistics
- Use bullet points to break up text
- Ensure content doesn't repeat between sections
- Focus on information density over length
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.
- 7d ago First seen · 55 lines · 0 tokens per session scan A 0b8b1b5a2ba1
content-writer is an agent published in the GitHub repository iannuttall/claude-agents (2,044 stars, last pushed 1y ago), licensed MIT. It adds 264 tokens to every session and 855 once invoked, about $0.0013 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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