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Agent Skill

Form Email skill

form-emailjeremylongshore/tons-of-skills-marketplaceplugins/ai-agency/tonone/skills/form-email/SKILL.md

Use when asked to design an email template, newsletter, drip campaign email, transactional email, or any HTML email asset. Examples: "design a welcome email", "create a newsletter template", "make an onboarding email sequence", "design a password reset email", "build an email campaign".

2.9kMIT

always on

61 tokname + description

once used

3,141 tokSKILL.md body

bundled files

11 KB

repo stars

2.9kGitHub

Install the Form Email skill

Skills CLI (Claude Code, Codex, Cursor and others)

npx skills add https://github.com/jeremylongshore/tons-of-skills-marketplace --skill form-email

Claude Code, by hand (all projects)

git clone --depth 1 https://github.com/jeremylongshore/tons-of-skills-marketplace.git /tmp/tons-of-skills-marketplace
mkdir -p ~/.claude/skills
cp -R /tmp/tons-of-skills-marketplace/plugins/ai-agency/tonone/skills/form-email ~/.claude/skills/form-email

For one project only, copy the folder into .claude/skills/ in that project instead. The agent picks it up when a task matches its description.

What it costs your context

Agent Skills load in three steps. Tokens counted with the o200k tokenizer; your model's count will differ a little.

WhenWhat loadsCost
Every sessionName and description61 tok
When the agent uses itThe SKILL.md instructions3,141 tok
Only if opened1 bundled files (1 KB)varies

Until it is used, form-email costs about 22× less than the median MCP server we measured (1,363 tokens on every turn). Installing all 150 skills from jeremylongshore/tons-of-skills-marketplace would load 9,741 tokens of descriptions. Skills vs MCP study

Checks

Our checks found nothing to flag: it follows the Agent Skills specification's naming and size guidelines and doesn't pipe downloads into a shell.

Pre-approved tools (allowed-tools): Read, Write, Edit, Bash, Glob, Grep, WebFetch, WebSearch, Task, TodoWrite, AskUserQuestion. The agent can use these without asking while the skill is active.

Checked 2026-10-22 · method

What's inside

The headings of its SKILL.md. Read the full file on GitHub.

  • Form Email
  • Phase 1: Discovery
  • Email Type
  • Goal
  • Audience
  • Existing Brand
  • ESP (Email Service Provider)
  • Dark Mode
  • Phase 2: Brief
  • Phase 3: Technical Constraints
  • Width
  • Images
  • Fonts
  • Dark Mode
  • Mobile Layout
  • Interactivity
  • Phase 4: Layout Spec
  • Anatomy
  • Subject Line + Preheader — These are design decisions
  • Header
  • Hero / Above the Fold
  • Body Sections
  • CTA Rules — One Per Email
  • Footer

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