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 Ckokoski/AuthorAgent --skill narrative-voice-coachgit clone --depth 1 https://github.com/Ckokoski/AuthorAgentWrote 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/ckokoski/authoragent/narrative-voice-coach)<a href="https://agentmods.dev/skills/ckokoski/authoragent/narrative-voice-coach"><img src="https://agentmods.dev/badge/skills/ckokoski/authoragent/narrative-voice-coach/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/ckokoski/authoragent/narrative-voice-coach"><img src="https://agentmods.dev/badge/skills/ckokoski/authoragent/narrative-voice-coach.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
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 | $0.00023 | $0.01673 |
| Opus 5 | $0.00012 | $0.00837 |
| Sonnet 5 | $0.00005 | $0.00335 |
| Haiku 4.5 | $0.00002 | $0.00167 |
Grade A, and why
narrative-voice-coach 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 12d 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 — 191 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Narrative Voice Coach — Premium Skill
Your personal writing coach focused entirely on voice — the thing that makes YOUR writing unmistakably yours. Analyzes your prose at the sentence level, identifies your natural strengths, spots inconsistencies, and helps you develop a voice so distinctive that readers recognize you by paragraph two.
The 47-Marker Voice Analysis
Goes far beyond basic readability scores. Analyzes 47 distinct markers of writing voice:
Rhythm & Cadence (12 markers)
Voice Rhythm Analysis: "The Silent Hour"
Sample: Chapters 1-5 (22,000 words)
Avg Sentence Length: 14.3 words (Genre avg: 16.2)
Sentence Length Variance: HIGH ✅ (Good — not monotonous)
Short Sentence Ratio: 23% (Punchy when needed)
Fragment Usage: 8.4% (Distinctive — intentional?)
Paragraph Length: 4.2 sentences (Tight, thriller-appropriate)
Rhythm Signature:
Long-Short-Short-Medium-Long (your natural pattern)
████░░░██░░████ ← Your rhythm
████████████████ ← Flat rhythm (what to avoid)
Cadence Score: 8.7/10
"Strong rhythmic instinct. Your short sentences hit hard
after long atmospheric setups. This is your superpower."
Word Choice & Diction (10 markers)
- Latinate vs. Anglo-Saxon word preference
- Concrete vs. abstract noun ratio
- Active vs. passive voice percentage
- Verb strength index (strong verbs vs. was/were/had)
- Adjective density (sparse vs. lush)
- Adverb reliance (flagged with alternatives)
- Unique word ratio (vocabulary breadth)
- Jargon/technical language level
- Formality spectrum
- Sensory word frequency by type (visual, auditory, tactile, etc.)
Sentence Architecture (8 markers)
- Opening word patterns (how you start sentences)
- Clause complexity (simple, compound, complex ratios)
- Subordinate clause placement (front, mid, end)
- Parallel structure usage
- List/series patterns (do you use Oxford comma? series of 3?)
- Sentence type ratio (declarative, interrogative, exclamatory)
- Embedded thought patterns
- Punctuation personality (em-dash lover? semicolon user? ellipsis addict?)
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.
- 12d ago First seen · 191 lines · 23 tokens per session scan A 8e84af8cc6cf
narrative-voice-coach is a skill published in the GitHub repository Ckokoski/AuthorAgent (110 stars, last pushed 2mo ago), licensed MIT. It adds 23 tokens to every session and 1,673 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.
Other skills, from other repositories
search
Search 2500+ curated ChatGPT and LLM open-source repositories. Use when the user asks to find tools, libraries, or repos related to ChatGPT, LLMs, RAG, agents, langchain, NLP, AI development, or any open-source AI tooling.
app-search
A search tool that opens search pages in popular mobile apps, including shopping, maps, video, knowledge, music, and app-store services. It covers apps such as Pinduoduo, Meituan, Amap, Douyin, Xiaohongshu, Bilibili, Zhihu, Baidu, and Taobao-related services.
clipboard-to-shortcut
A skill that turns a copied mobile-app sharing link into a reusable shortcut for opening that app page later.
capcut-theme-video
A guide for creating one-tap videos in CapCut, a video-editing app, from photos on an Android device. It specifies how to select photos and place them in the required album before making a video.
taobao-search
A tool for searching products on Taobao, Alibaba’s consumer shopping marketplace, by opening its search page in the Taobao app. It supports product, brand, price-limit, comparison, and new-product searches.
scheduled-automation
Schedule app automation tasks such as opening an app and performing actions at a specific time.