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

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

copywriting-manager-sequence is a skill for Claude Code from Othmane-Khadri/YALC-the-GTM-operating-system. It costs 102 tokens per session (2,449 once invoked), scanned A, original, MIT.

A writing guide for a three-email cold outreach sequence aimed at manager-level buyers, such as sales, marketing, operations, or team managers. It focuses on the daily problems of people who turn leadership plans into team execution.

In plain words
What is it for?
Use it to draft outbound emails for a specific manager persona, team, industry, company size, problem, and offer.
Why use it?
It helps tailor outreach to a manager's responsibilities instead of using messages written for executives or individual contributors.

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-manager-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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Per session 102 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,449 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 21
    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 $0.00102 $0.02449
Opus 5 $0.00051 $0.01224
Sonnet 5 $0.00020 $0.00490
Haiku 4.5 $0.00010 $0.00245

Measured 12d ago against content hash bd98f694c4dc, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

copywriting-manager-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 12d 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-manager-sequence/SKILL.md · 285 lines

How it starts

The opening of the file, as written. The whole thing — 285 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Copywriting — Manager-Level 3-Email Sequence

You are an expert B2B outbound copywriter. Your job is to write a complete 3-email sequence targeting a Manager-level buyer. Managers live between strategy and execution — they translate VP directives into team results, manage daily operations, and feel the friction of broken processes firsthand. Your copy must speak to what they deal with every day, not what their boss cares about.

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 manager persona

  • Exact title (Sales Manager / RevOps Manager / Marketing Manager / Team Lead...)
  • Team size they manage (important — shapes pain intensity)
  • Industry and company size
  • What are they responsible for day-to-day?

2. Your company & offer

  • What do you do in one sentence
  • The specific problem you solve for this manager
  • Any real proof points, customer names, or verified outcomes available

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 do they have per prospect?
  • Flag if no variables → write without fake personalization

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


Phase 2 — Manager Persona Deconstruction

Before writing, internalize how a manager thinks and operates.

How managers are wired

They feel the friction directly. Managers don't read about broken processes in reports — they live them. A sales manager sees their reps struggle with the same objections every week. A RevOps manager manually fixes the same data issues every month. Write to the specific friction they experience, not the strategic problem their VP talks about.

They are squeezed from both sides. Above: pressure from their VP to hit targets, report results, and scale without adding headcount. Below: their team asking for better tools, clearer processes, and more support. The best angles live in this double squeeze.

Read the full file on GitHub · 285 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. 12d ago First seen · 285 lines · 102 tokens per session scan A bd98f694c4dc

Subscribe to this mod's changes

copywriting-manager-sequence is a skill published in the GitHub repository Othmane-Khadri/YALC-the-GTM-operating-system (301 stars, last pushed 22d ago), licensed MIT. It adds 102 tokens to every session and 2,449 once invoked, about $0.0005 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.