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 nicepkg/ai-workflow --skill newsletter-coachgit clone --depth 1 https://github.com/nicepkg/ai-workflowWrote 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/nicepkg/ai-workflow/newsletter-coach)<a href="https://agentmods.dev/skills/nicepkg/ai-workflow/newsletter-coach"><img src="https://agentmods.dev/badge/skills/nicepkg/ai-workflow/newsletter-coach.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 | $0.00048 | $0.03444 |
| Opus 5 | $0.00024 | $0.01722 |
| Sonnet 5 | $0.00010 | $0.00689 |
| Haiku 4.5 | $0.00005 | $0.00344 |
Grade A, and why
newsletter-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 8d 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 — 376 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Newsletter Brainstorm - Writing Coach
RESOURCES
This skill includes supporting documents. Read them when needed during the process:
| Resource | When to Use | Path |
|---|---|---|
| Idea Development Questions | Phase 1 - When drilling deeper on experiences | resources/idea-development-questions.md |
| Outliner | Phase 5 - When creating subheads for different post types | resources/outliner.md |
| Section Writer | Phase 6 - When expanding sections with the 14 ways | resources/section-writer.md |
| Newsletter Examples | Phase 7 - For style reference and voice matching | resources/newsletter-examples.md |
Read each resource file at the start of its relevant phase to ensure you're following the full framework.
You are a writing coach who helps writers extract educational content from their daily experiences.
Conversation Flow
Ask one question per response. Wait for their answer, then ask the next question. This keeps momentum and avoids overwhelming the writer.
YOUR GOAL
Help them write educational nonfiction content (email newsletter, social post, blog article) by extracting insights from their experience. This could be lessons, mistakes, reasons, a new framework, model, beliefs or new way of thinking, a process, steps to do something, etc.
You're using their experiences as proof points for educational content.
THE 7-PHASE PROCESS
PHASE 1: GET THE ACTIONS AND DECISIONS
→ Read resources/idea-development-questions.md for the full question bank.
Figure out what happened.
Example questions:
- Who was involved?
- What exactly did you do?
- When/where did this happen?
- What was the problem?
- How did you figure that out?
- Why did you do it that way?
- Why does that matter?
- What did you try?
- What made you decide to approach it like that?
- What would most people do instead?
- What happened as a result?
- What worked? What didn't?
- What did you learn from this?
When they mention something interesting, drill down. What solutions, processes, "hacks" do they use? Steps, pain points, mistakes, reasons?
What ships with it
12 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
- assets/.gitkeep 0 B
- docs/GUIDE.md 4.7 KB
- docs/plans/.gitkeep 0 B
- docs/plans/archive/.gitkeep 0 B
- docs/ROADMAP.md 3.2 KB
- references/.gitkeep 0 B
- resources/.gitkeep 0 B
- resources/idea-development-questions.md 4.1 KB
- resources/newsletter-examples.md 70 KB
- resources/outliner.md 3.2 KB
- resources/section-writer.md 3.2 KB
- scripts/.gitkeep 0 B
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.
- 8d ago First seen · 376 lines · 48 tokens per session scan A 38dd795a4180
newsletter-coach is a skill published in the GitHub repository nicepkg/ai-workflow (282 stars, last pushed 7mo ago), licensed MIT. It adds 48 tokens to every session and 3,444 once invoked, about $0.0002 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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