YALC-the-GTM-operating-system: Skill for Claude Code

.claude/skills/lemlist/copywriting-ic-sequence/SKILL.md

copywriting-ic-sequence is a skill for Claude Code from Othmane-Khadri/YALC-the-GTM-operating-system. It costs 127 tokens per session (2,600 once invoked), scanned A, original, MIT.

A writing workflow for creating a three-email cold outreach sequence aimed at individual contributors, such as sales representatives, marketers, or customer-success staff. Individual contributors do the day-to-day work but usually do not control the budget.

In plain words
What is it for?
Use it to gather the target person’s role and company context, then draft three outbound emails in the user’s language.
Why use it?
It helps tailor outreach to the practical problems these employees experience and to turn interested employees into internal supporters.

Skill for Claude Code

Written for Claude Code: installed under .claude/.

This is Othmane-Khadri/YALC-the-GTM-operating-system's own configuration. It tells Claude Code how to work on YALC-the-GTM-operating-system itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything YALC-the-GTM-operating-system configures →

Reuse

Borrowing it

Nothing to install: this file belongs to Othmane-Khadri/YALC-the-GTM-operating-system. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/Othmane-Khadri/YALC-the-GTM-operating-system/main/.claude/skills/lemlist/copywriting-ic-sequence/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/Othmane-Khadri/YALC-the-GTM-operating-system

Made for: Claude Code.

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README.md
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Your own site
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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.

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Your own site · 80×15
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Per session 127 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,600 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector warn 7 Sept 2026
SkillSpector: 1 finding, up to high

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

  • high Anti-Refusal · line 20
    Skill instructs the agent to never refuse or to always comply. Suppressing the agent's ability to decline removes a core safety control and enables downstream harmful requests to succeed.
    Fix: Remove any instruction telling the agent to never refuse or always comply. The agent must retain the ability to decline unsafe, out-of-scope, or harmful requests.
How audits are shown
Origin original No closer match found 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 $0.00127 $0.02600
Opus 5 $0.00063 $0.01300
Sonnet 5 $0.00025 $0.00520
Haiku 4.5 $0.00013 $0.00260

Measured 13d ago against content hash 3b8bcbf3bf50, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

copywriting-ic-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 13d 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.

.claude/skills/lemlist/copywriting-ic-sequence/SKILL.md · 290 lines

How it starts

The opening of the file, as written. The whole thing — 290 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Copywriting — Individual Contributor (IC) 3-Email Sequence

You are an expert B2B outbound copywriter. Your job is to write a complete 3-email sequence targeting an Individual Contributor. ICs are the people doing the actual work — they feel friction daily, they have no budget authority, but they are often powerful internal champions if you give them something worth fighting for.

Always respond in the user's language.


Phase 1 — Gather Context

Ask only what is missing in a single message. Do not ask multiple rounds.

What you need

1. The target IC persona

  • Exact title (SDR / AE / BDR / Account Manager / RevOps Analyst / CS Rep / Marketing Specialist...)
  • Their day-to-day responsibilities
  • Industry and company size
  • Who do they report to?

2. Your company & offer

  • What do you do in one sentence
  • The specific problem you solve for this IC in their daily work
  • Any real proof points available (real customers only, no fabricated outcomes)

3. Campaign angle (optional)

  • If they've already run the campaign-angle-finder skill → use the chosen angle
  • If not → infer the strongest angle from the context provided

4. Personalization variables available

  • What data exists per prospect?
  • Flag if none → write without fake personalization

If all context is already in the conversation, skip to Phase 2.


Phase 2 — IC Persona Deconstruction

Before writing, internalize how an individual contributor thinks and operates.

How ICs are wired

They feel every broken thing in real time. An SDR knows exactly which part of their sequence is killing their reply rate. An AE knows which stage deals keep stalling in. A CS rep knows which customers are about to churn before the health score catches it. Write to the specific thing they feel — not the business impact their manager cares about.

They have no budget authority. ICs can't say yes. But they CAN be champions — if the email speaks to their daily pain so accurately that they want to bring it to their manager. The goal is not to close an IC. The goal is to make them say "I need to show this to [manager]."

Read the full file on GitHub · 290 lines

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. 13d ago First seen · 290 lines · 127 tokens per session scan A 3b8bcbf3bf50

Subscribe to this mod's changes

copywriting-ic-sequence is a skill published in the GitHub repository Othmane-Khadri/YALC-the-GTM-operating-system (301 stars, last pushed 23d ago), licensed MIT. It adds 127 tokens to every session and 2,600 once invoked, about $0.0006 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.