Boron Letters
Master Gary Halbert's direct response copywriting principles from \"The Boron Letters\" (1984). The timeless fundamentals that separate pros from amateurs. Use when: Writing direct response copy (sales letters, emails, ads); Creating headlines that demand attention; Building mailing lists and segmentation; Improving copy through the A-pile test; Learning copywriting fundamentals from scratch
Security AStatic scan found no risk patternsHow grading works ›
What this skill does
Boron Letters is a community-contributed Claude Code skill in the sales-misc sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/boron-letters/ and loads when your prompt matches the skill's trigger.
Who uses this skill
The Boron Letters Claude Code skill is built for sales development reps, account executives, revenue operations teams, and customer success managers. It's part of ClaudSkills (also referred to as Claude Skills or Claude Code Skills) — the open community-curated registry of 149,000+ SKILL.md files for Anthropic's Claude Code agent and the wider Claude ecosystem (Claude API, Claude Agent SDK).
How to install
Free
Manual install (2 steps)
mkdir -p ~/.claude/skills/boron-letters
curl -L https://claudskills.com/skills/boron-letters/SKILL.md \
-o ~/.claude/skills/boron-letters/SKILL.md
Or just download SKILL.md directly and drop it into ~/.claude/skills/boron-letters/. Claude Code auto-discovers it on next session.
Skills live at ~/.claude/skills/boron-letters/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\boron-letters\SKILL.md on Windows. See the full install guide for step-by-step instructions.
Telegram
📱 Install from your phone or desktop Telegram
Open @claudskills_bot on Telegram, tap Open Desktop App, and the desktop app installs this skill for you. Or share the bot link with a colleague — they get the same one-tap install. Learn more →
Pro
One-click install via the desktop app
The ClaudSkills desktop app installs any skill directly into ~/.claude/skills/ with one click — no terminal required. Pro starts at $9/mo or $149 lifetime.
Pro
For the full experience including quality scoring and one-click install features for each skill — upgrade to Pro.
Frequently asked questions
How do I install the Boron Letters Claude Code skill?
Install via the ClaudSkills desktop app (one click) or copy
SKILL.md from the source repository to
~/.claude/skills/boron-letters/SKILL.md and restart Claude Code. Both flows are detailed at
claudskills.com/install/.
What does the Boron Letters skill do?
Master Gary Halbert's direct response copywriting principles from \"The Boron Letters\" (1984). The timeless fundamentals that separate pros from amateurs. Use when: Writing direct response copy (sales letters, emails, ads); Creating headlines that demand attention; Building mailing lists and segmentation; Improving copy through the A-pile test; Learning copywriting fundamentals from scratch
Is this skill free to install?
Yes. ClaudSkills is an open registry — every skill keeps its source repository's license, and manual install via copy is free. ClaudSkills Pro ($9/mo, $79/yr, or $149 one-time) adds one-click install via the desktop app and a multi-signal Quality Score.
When should I use the Boron Letters skill?
Use Boron Letters when your Claude Code task falls under the Sales category — specifically in the sales misc area. Claude Code auto-discovers installed skills and invokes the right one based on the task description, so you can also ask Claude directly (e.g. "use Boron Letters" or describe the task and let Claude pick). Browse related skills at
/category/sales/.
What is a Claude Code skill and how does the Boron Letters skill fit in?
A Claude Code skill is a
SKILL.md file that lives under
~/.claude/skills/<name>/ and tells the Claude Code CLI agent how to perform a specific task (instructions, prompts, allowed tools). Skills are auto-discovered at session start. Boron Letters is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the Sales category. Learn more at
/learn/what-is-a-claude-skill/.
Attribution & license
Cite this skill
If you reference this skill in a blog post, paper, or documentation, you can cite it as:
APA
KunanonJ. (2026). Boron Letters [Claude Code skill]. ClaudSkills. https://claudskills.com/skills/boron-letters/
BibTeX
@misc{boron-letters-2026,
author = {KunanonJ},
title = {Boron Letters [Claude Code skill]},
year = {2026},
publisher = {ClaudSkills},
url = {https://claudskills.com/skills/boron-letters/}
}Embed this skill
Promote, attribute, or link this skill from your own README, blog post, or documentation. All three snippets are free to use — no sign-up, no API key. More distribution surfaces →
Badge
[](https://claudskills.com/skills/boron-letters/?utm_source=badge&utm_medium=readme&utm_campaign=skill_badge)
<script>
<script src="https://claudskills.com/embed/boron-letters.js" async></script>
<iframe>
<iframe src="https://claudskills.com/embed/boron-letters.html" width="100%" height="160" frameborder="0" loading="lazy" title="ClaudSkills: Boron Letters"></iframe>
Security scan
Grade A · scanned 2026-07-11 — free static scan against the OWASP Agentic Skills Top 10.
No risk patterns were found in any of the ten OWASP-aligned categories. How grading works ›
- ✓ Prompt injection
- ✓ Data exfiltration
- ✓ Supply chain
- ✓ Reverse shell
- ✓ Credentials
- ✓ Execution
- ✓ Filesystem
- ✓ Persistence
- ✓ Obfuscation
- ✓ Network
Show this grade on your repo (click to copy):
[](https://claudskills.com/skills/boron-letters/#security)
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