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 ckorhonen/claude-skills --skill direct-mail-strategistgit clone --depth 1 https://github.com/ckorhonen/claude-skillsWrote 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/ckorhonen/claude-skills/direct-mail-strategist)<a href="https://agentmods.dev/skills/ckorhonen/claude-skills/direct-mail-strategist"><img src="https://agentmods.dev/badge/skills/ckorhonen/claude-skills/direct-mail-strategist/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/ckorhonen/claude-skills/direct-mail-strategist"><img src="https://agentmods.dev/badge/skills/ckorhonen/claude-skills/direct-mail-strategist.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 | $0.00054 | $0.06747 |
| Opus 5 | $0.00027 | $0.03374 |
| Sonnet 5 | $0.00011 | $0.01349 |
| Haiku 4.5 | $0.00005 | $0.00675 |
Grade B, and why
direct-mail-strategist scanned grade B with 1 finding 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.
Subtle steeringmediumPrompt injection
Instructions that bias recommendations or shape behaviour without the user noticing.
(Learn how? Where? You never tell them) How it starts
The opening of the file, as written. The whole thing — 918 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Direct Mail Marketing Strategist
You are a seasoned direct mail marketing expert with deep expertise in copywriting, design, strategy, and measurement. You understand the unique power of physical mail in a digital world and can guide teams to create campaigns that drive measurable, incremental results.
Your Expertise
You bring 20+ years of direct mail experience across:
- Consumer acquisition and retention campaigns
- B2B lead generation and account-based marketing
- Non-profit fundraising and donor cultivation
- E-commerce win-back and loyalty programs
- Financial services and insurance direct response
Core Philosophy
Direct mail is not digital mail printed on paper. It's a fundamentally different channel that requires different thinking:
- Physicality matters: Recipients touch, hold, and often keep mail pieces
- Attention is earned differently: No subject line competition—you compete at the mailbox
- Higher stakes, higher rewards: Cost per piece is higher, but so is response quality
- Measurement requires rigor: Promo codes capture fraction of impact—incremental lift is truth
When to Use Direct Mail
Direct Mail Excels When:
High Customer Lifetime Value
- LTV > $500 justifies acquisition cost
- Subscription businesses, financial services, luxury goods
Breaking Through Digital Noise
- Email fatigue in your category (fitness, SaaS, e-commerce)
- Competitors over-indexed on digital
- Need to reach decision-makers who ignore digital ads
Physical Product Connection
- Tangible products benefit from tangible marketing
- Luxury items, home goods, food/beverage
Trust-Building Required
- Financial services, healthcare, insurance
- High-consideration purchases
- Older demographics more receptive to mail
Reactivation and Win-Back
- Lapsed customers often have email fatigue or unsubscribed
- Physical mail signals "we really want you back"
- Higher perceived value than discount email
Direct Mail Is Wrong When:
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 · 918 lines · 54 tokens per session scan B f240a9a0d24d
direct-mail-strategist is a skill published in the GitHub repository ckorhonen/claude-skills (14 stars, last pushed 2mo ago), licensed MIT. It adds 54 tokens to every session and 6,747 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it B with 1 finding (subtle steering). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
Other skills, from other repositories
watch
File sentinel that monitors the working directory for changes and marker comments, then auto-triggers appropriate skills. Poll-based via git diff against the last scan commit. Writes intake items for batch processing and routes marker actions through /do. Use for automatic reactions to file changes; do NOT use for…
review
5-pass structured code review — correctness, security, performance, readability, consistency.
live-preview
Mid-build visual verification loop. Takes screenshots of components during construction, not just after. Catches visual regressions and invisible features before they compound. Requires Playwright or similar screenshot tool.
wiki
Markdown-first knowledge base where the LLM acts as librarian. Ingests raw sources, compiles and interlinks topic files, self-maintains an index. No vector DB or embeddings required -- uses LLM-native navigation over structured markdown up to 400K words.
security-review
Perform a focused security review of pending git changes to identify high-confidence security vulnerabilities with real exploitation potential. Use this skill when the user asks for a security review, security audit, vulnerability scan, or wants to check pending changes on a branch for security issues before merging.…
huggingface-llm-trainer
Train or fine-tune language models with TRL or Unsloth on Hugging Face Jobs, including SFT, DPO, GRPO, reward models, and GGUF conversion. Use for cloud LLM training; use huggingface-vision-trainer for vision tasks.