email-sequence

email-sequence is a skill for Claude Code, Codex from rajitsaha/100xprism. It costs 77 tokens per session (1,865 once invoked), scanned A, a copy of emails, MIT.

A guide for planning automated email series, where messages are sent based on time or a person's actions. It covers welcome, onboarding, sales, educational, post-purchase, and re-engagement sequences.

In plain words
What is it for?
Use it to create or improve welcome series, lead-nurture campaigns, onboarding emails, re-engagement flows, and other lifecycle email programs. It helps choose the audience, goal, timing, and content for each message.
Why use it?
It helps turn a group of emails into a clear journey instead of sending unrelated messages. Each email gets one main purpose, useful content, and an obvious next step.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: installed under .agents/ (shared by several agents).

Install

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.

agentmods
npx agentmods add skills/rajitsaha/100xprism/email-sequence
Any agent
npx skills add rajitsaha/100xprism --skill email-sequence
Clone the repo
git clone --depth 1 https://github.com/rajitsaha/100xprism

Made for: Claude Code, Codex.

Wrote 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.

agentmods badge for email-sequence

README.md
[![agentmods](https://agentmods.dev/badge/skills/rajitsaha/100xprism/email-sequence.svg)](https://agentmods.dev/skills/rajitsaha/100xprism/email-sequence)
Your own site
<a href="https://agentmods.dev/skills/rajitsaha/100xprism/email-sequence"><img src="https://agentmods.dev/badge/skills/rajitsaha/100xprism/email-sequence.svg" alt="Measured on agentmods" height="20"></a>
Per session 77 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,865 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin 86% copy Near-identical to another mod in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00077 $0.01865
Opus 5 $0.00039 $0.00932
Sonnet 5 $0.00015 $0.00373
Haiku 4.5 $0.00008 $0.00186

Measured 6d ago against content hash 17569636780b, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

email-sequence 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 6d 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.

Origin

This is a copy

86% identical to emails — 191 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

.agents/skills/email-sequence/SKILL.md · 207 lines

How it starts

The opening of the file, as written. The whole thing — 207 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Email Sequence Design

Initial Assessment

Product context: If .agents/product-marketing-context.md exists (or .claude/product-marketing-context.md in older setups), read it first and tailor output to it; only ask for what it doesn't cover.

Establish:

  1. Sequence Type — welcome/onboarding, lead nurture, re-engagement, post-purchase, event-based, educational, or sales
  2. Audience Context — who they are, what triggered them into this sequence, what they already know/believe, current relationship with you
  3. Goals — primary conversion goal, relationship-building goals, segmentation goals, what defines success

Core Principles

1. One Email, One Job

One primary purpose and one main CTA per email — don't try to do everything.

2. Value Before Ask

Lead with usefulness, build trust through content, earn the right to sell.

3. Relevance Over Volume

Fewer, better emails win. Segment for relevance. Quality > frequency.

4. Clear Path Forward

Every email moves them somewhere. Links should do something useful. Make next steps obvious.


Email Sequence Strategy

Sequence Length

Welcome 3-7 emails; lead nurture 5-10; onboarding 5-10; re-engagement 3-5 — scaled by sales cycle length, product complexity, and relationship stage.

Timing/Delays

Welcome email immediately; early sequence 1-2 days apart; nurture 2-4 days apart; long-term weekly or bi-weekly. B2B: avoid weekends. B2C: test weekends. Send at local time.

Subject Line Strategy

Clear > clever. Specific > vague. Benefit or curiosity-driven. 40-60 characters ideal. Test emoji (they're polarizing).

Patterns that work:

  • Question: "Still struggling with X?"
  • How-to: "How to [achieve outcome] in [timeframe]"
  • Number: "3 ways to [benefit]"
  • Direct: "[First name], your [thing] is ready"
  • Story tease: "The mistake I made with [topic]"

Preview Text

Extends the subject line, ~90-140 characters. Don't repeat the subject — complete the thought or add intrigue.

Read the full file on GitHub · 207 lines

Files

What ships with it

5 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.

Changes

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.

  1. 6d ago First seen · 207 lines · 77 tokens per session scan A 17569636780b

Subscribe to this mod's changes

email-sequence is a skill published in the GitHub repository rajitsaha/100xprism (10 stars, last pushed 6d ago), licensed MIT. It adds 77 tokens to every session and 1,865 once invoked, about $0.0004 per session on Opus 5. A static security scan graded it A with 0 findings. It is 86% identical to emails, differing in 191 lines, and is treated as a copy.