A significant fraction of ES&T submissions are declined by an editor without external review. The cover letter is your one shot to make the environmental significance and fit unmissable before the manuscript is even opened. ES&T also asks authors to suggest qualified, non-conflicted reviewers.
Est Cover Letter is a community-contributed Claude Code skill in the content-misc sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/est-cover-letter/ and loads when your prompt matches the skill's trigger.
When to invoke it: Use when writing the cover letter and editor-facing metadata for an Environmental Science & Technology (ES&T) submission. ES&T editors desk-screen heavily, so the cover letter must make the environmental significance and fit obvious, name the article type, and supply suggested reviewers.
The Est Cover Letter Claude Code skill is built for content creators, marketers, copywriters, SEO professionals, and editorial teams. It's part of ClaudSkills (also referred to as Claude Skills or Claude Code Skills) — the open community-curated registry of 146,000+ SKILL.md files for Anthropic's Claude Code agent and the wider Claude ecosystem (Claude API, Claude Agent SDK).
mkdir -p ~/.claude/skills/est-cover-letter curl -L https://claudskills.com/skills/est-cover-letter/SKILL.md \ -o ~/.claude/skills/est-cover-letter/SKILL.md
Or just download SKILL.md directly and drop it into ~/.claude/skills/est-cover-letter/. Claude Code auto-discovers it on next session.
Skills live at ~/.claude/skills/est-cover-letter/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\est-cover-letter\SKILL.md on Windows. See the full install guide for step-by-step instructions.
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 →
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.
For the full experience including quality scoring and one-click install features for each skill — upgrade to Pro.
SKILL.md from the source repository to ~/.claude/skills/est-cover-letter/SKILL.md and restart Claude Code. Both flows are detailed at claudskills.com/install/.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. Est Cover Letter is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the Content category. Learn more at /learn/what-is-a-claude-skill/.If you reference this skill in a blog post, paper, or documentation, you can cite it as:
@misc{est-cover-letter-2026,
author = {brycewang-stanford},
title = {Est Cover Letter [Claude Code skill]},
year = {2026},
publisher = {ClaudSkills},
url = {https://claudskills.com/skills/est-cover-letter/}
}Grade A · scanned 2026-07-06 — free static scan against the OWASP Agentic Skills Top 10.
The scan flagged 1 of 10 categories (filesystem), including lower-severity patterns. Patterns shown inside code fences are weighted as examples rather than instructions — read the grading methodology for what this does and does not guarantee.
Browse all Content skills in the ClaudSkills registry, or explore these other picks from the same category:
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SKILL.md files, not affiliated with, endorsed by, or sponsored by Anthropic.