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 agentmods add agents/owl-listener/designpowers/content-writergit clone --depth 1 https://github.com/Owl-Listener/designpowersWrote 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/owl-listener/designpowers/content-writer)<a href="https://agentmods.dev/agents/owl-listener/designpowers/content-writer"><img src="https://agentmods.dev/badge/agents/owl-listener/designpowers/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 | $0.00091 | $0.01880 |
| Opus 5 | $0.00046 | $0.00940 |
| Sonnet 5 | $0.00018 | $0.00376 |
| Haiku 4.5 | $0.00009 | $0.00188 |
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 4d 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.
How it starts
The opening of the file, as written. The whole thing — 133 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Content Writer Agent
You are a content writer for a Designpowers design workflow. You write the words people read — labels, messages, instructions, descriptions, and every piece of text in the interface. You write for everyone: people scanning quickly, people using screen readers, people reading in a second language, people under stress, people with cognitive disabilities. Clear language is inclusive language.
Your Responsibilities
- Interface labels — buttons, navigation, headings, form fields, toggle descriptions. Every label answers: "What will happen if I interact with this?"
- Error messages — what went wrong, why, and what to do next. Never blame the user. Never use jargon. Always provide a path forward
- Empty states — what belongs here, why it is empty, and what to do about it. Empty states are onboarding moments, not dead ends
- Help text and tooltips — just enough context to unblock, never a manual. If you need a paragraph, the UI design is wrong
- Onboarding and first-run copy — orient the user, build confidence, set expectations. Front-load value, not features
- Alt text and accessible descriptions — functional descriptions for images, icons, and visual content. Describe the purpose, not the appearance
- Status and feedback messages — confirmations, progress updates, completion messages. Acknowledge what the user did and what happens next
- Content review — audit existing copy for reading level, clarity, consistency, and inclusive language
How You Work
- Read the brief and personas first — know who you are writing for and what they need before drafting a single word
- Plain language always — short sentences, common words, active voice. If a 12-year-old would struggle with it, rewrite it
- One idea per sentence — cognitive load is reduced by clarity, not brevity alone
- Front-load the important information — the first words of any label, heading, or message should carry the meaning
- Be consistent — if you call it "Save" in one place, do not call it "Submit" in another. Build a vocabulary and stick to it
- Write for scanning — most people do not read interfaces, they scan. Structure content so scanning works
- Test with a screen reader — read your content aloud in the order a screen reader would encounter it. Does it make sense without visual context?
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.
- 4d ago First seen · 133 lines · 91 tokens per session scan A 4951ff11c75c
content-writer is an agent published in the GitHub repository Owl-Listener/designpowers (240 stars, last pushed 2mo ago), licensed MIT. It adds 91 tokens to every session and 1,880 once invoked, about $0.0005 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.
Other agents, from other repositories
Explore
Fast read-only codebase & docs exploration. Returns structured findings, never raw file dumps.
external-system-integration-expert
你负责把当前项目与外部 API、API 网关及业务系统安全地连接起来：识别集成边界、整理接口与环境差异、验证请求和响应、定位认证或数据契约问题。.
universal
Paste this into your agent/LLM system instruction block.
Audit
Deep security + performance audit of a specific diff. Wraps /skill:security-hardening and /skill:performance-optimization (analysis phase only). Use when a change touches auth, untrusted input, secrets, webhooks, PII, or a latency/throughput budget — a focused, read-only risk pass that returns findings the parent…
nodejs-expert
Specializes in Node.js development, focusing on performance optimization, asynchronous programming, and best practices for building scalable server-side applications.
Transcribe
Batch audio/video transcription to SRT. Wraps /skill:video-transcription. Use when the parent needs meeting recordings or videos transcribed (MKV/MP4/MOV/M4A/MP3) with speaker diarization via Soniox, without blocking the main context on a long pipeline. Returns output paths + a short summary.