Campaign Plan
rongxinzy/RongxinAI
Generate a full campaign brief with objectives, audience, messaging, channel strategy, content calendar, and success metrics.
Guides users to build a targeted prospect list in lemlist by translating an ICP into concrete search filters and signal configurations.
Install List Builder
$ npx skills add Othmane-Khadri/YALC-the-GTM-operating-system --skill list-builder -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install Othmane-Khadri/YALC-the-GTM-operating-system list-builder --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/Othmane-Khadri/YALC-the-GTM-operating-system.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.claude/skills/lemlist/list-builder .claude/skills/list-builder && rm -rf skills-srcUse ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.
Claude Code skills documentation · loads skills from .claude/skills/
Install the "list-builder" agent skill from https://github.com/Othmane-Khadri/YALC-the-GTM-operating-system/tree/main/.claude/skills/lemlist/list-builder into .claude/skills/list-builder/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "list-builder", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/Othmane-Khadri/YALC-the-GTM-operating-system/tree/main/.claude/skills/lemlist/list-builderType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add Othmane-Khadri/YALC-the-GTM-operating-system --skill list-builder -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install Othmane-Khadri/YALC-the-GTM-operating-system list-builder --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/Othmane-Khadri/YALC-the-GTM-operating-system.git skills-src && mkdir -p .agents/skills && cp -r skills-src/.claude/skills/lemlist/list-builder .agents/skills/list-builder && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "list-builder" agent skill from https://github.com/Othmane-Khadri/YALC-the-GTM-operating-system/tree/main/.claude/skills/lemlist/list-builder into .agents/skills/list-builder/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "list-builder", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add Othmane-Khadri/YALC-the-GTM-operating-system --skill list-builder -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install Othmane-Khadri/YALC-the-GTM-operating-system list-builder --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/Othmane-Khadri/YALC-the-GTM-operating-system.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/.claude/skills/lemlist/list-builder .cursor/skills/list-builder && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "list-builder" agent skill from https://github.com/Othmane-Khadri/YALC-the-GTM-operating-system/tree/main/.claude/skills/lemlist/list-builder into .cursor/skills/list-builder/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "list-builder", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/Othmane-Khadri/YALC-the-GTM-operating-system.git --path .claude/skills/lemlist/list-builder--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add Othmane-Khadri/YALC-the-GTM-operating-system --skill list-builder -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install Othmane-Khadri/YALC-the-GTM-operating-system list-builder --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/Othmane-Khadri/YALC-the-GTM-operating-system.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/.claude/skills/lemlist/list-builder .gemini/skills/list-builder && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "list-builder" agent skill from https://github.com/Othmane-Khadri/YALC-the-GTM-operating-system/tree/main/.claude/skills/lemlist/list-builder into .gemini/skills/list-builder/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "list-builder", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install Othmane-Khadri/YALC-the-GTM-operating-system list-builderInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add Othmane-Khadri/YALC-the-GTM-operating-system --skill list-builder -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/Othmane-Khadri/YALC-the-GTM-operating-system.git skills-src && mkdir -p .github/skills && cp -r skills-src/.claude/skills/lemlist/list-builder .github/skills/list-builder && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "list-builder" agent skill from https://github.com/Othmane-Khadri/YALC-the-GTM-operating-system/tree/main/.claude/skills/lemlist/list-builder into .github/skills/list-builder/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "list-builder", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add Othmane-Khadri/YALC-the-GTM-operating-system --skill list-builder -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install Othmane-Khadri/YALC-the-GTM-operating-system list-builder --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/Othmane-Khadri/YALC-the-GTM-operating-system.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/.claude/skills/lemlist/list-builder .opencode/skills/list-builder && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "list-builder" agent skill from https://github.com/Othmane-Khadri/YALC-the-GTM-operating-system/tree/main/.claude/skills/lemlist/list-builder into .opencode/skills/list-builder/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "list-builder", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
list-builder- GitHub stars
- 317
- Token cost
- ~878 tokens
- SKILL.md length
- 456 words
- Files
- 1
- Skills in repo
- 57
- Repo updated
- First seen
- Licence
- MIT
At a glance
Guides users to build a targeted prospect list in lemlist by translating an ICP into concrete search filters and signal configurations.
- Works in 3 steps: Recover or define the ICP → Determine the list type → Route with context
- Asked build me a list
- SKILL.md covers Step 1 — Recover or define the…, Step 2 — Determine the list type, Step 3 — Route with context and Key principle to communicate
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
List Builder is an agent skill from Othmane-Khadri/YALC-the-GTM-operating-system. Guides users to build a targeted prospect list in lemlist by translating an ICP into concrete search filters and signal configurations. Use when asked "build me a list", "find me leads", "find me prospects", "how do I find companies to target", "help me build a prospect list", "where do I start to find leads", or any request to identify or compile a list of potential customers. This skill does NOT find leads directly — it teaches users HOW to configure lemlist to find the right leads themselves. Always use before…
Its SKILL.md is about 880 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.
It sits in Marketing & SEO, covering Lead generation and Translation. The repository describes itself as: YALC 1.0, the open-source Clay alternative. MIT, CLI-first, self-hosted, runs in Claude Code. Yalc today is an intelligent orchestration layer that runs pre configured GTM agents…. The licence is MIT.
When your agent uses it
- Asked build me a list
- Find me prospects
- How do I find companies to target
- Help me build a prospect list
Example prompts
- “build me a list”
- “find me leads”
- “find me prospects”
- “/list-builder”
Workflow steps
3 steps, taken from the step headings in SKILL.md.
What it can do on your machine
Read from SKILL.md and the folder at commit 5686d1f. It shows what the files ask for, not the result of running them.
Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
No scripts in the folder and no shell commands in SKILL.md.
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md.
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Context cost
List Builder loads about 878 tokens when it runs. Until then it costs about 141 tokens; SKILL.md has 456 words of instructions outside code blocks.
Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.
Safety
Auto-check passed
The automated check found no risky patterns in SKILL.md.
Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.
SKILL.md
The full file from Othmane-Khadri/YALC-the-GTM-operating-system at commit 5686d1f, republished under its MIT licence (© Othmane-Khadri). 456 words, ~878 tokens.
Download SKILL.mdSave it as
.claude/skills/list-builder/SKILL.md (or your agent's skills folder).- name
- list-builder
- description
- Guides users to build a targeted prospect list in lemlist by translating an ICP into concrete search filters and signal configurations. Use when asked "build me a list", "find me leads", "find me prospects", "how do I find companies to target", "help me build a prospect list", "where do I start to find leads", or any request to identify or compile a list of potential customers. This skill does NOT find leads directly — it teaches users HOW to configure lemlist to find the right leads themselves. Always use before people-finder or company-finder.
List Builder — Translate your ICP into a lemlist search
You are a lemlist list-building strategist. You help users go from an ICP description to a concrete, configured search in lemlist — step by step, with the reasoning behind every choice.
You don't find leads. You teach users exactly how to find them in lemlist, so they understand the logic and can replicate it independently.
Step 1 — Recover or define the ICP
First, check the conversation context. If an ICP or persona has already been defined earlier in this conversation, extract it and confirm:
"I'll use the ICP we defined earlier — [quick summary]. Does that still apply, or do you want to adjust something?"
If no ICP exists yet, ask in a single message:
- What does your product do, and what problem does it solve?
- Who are your best current customers (if any)? Role, company size, industry?
- What's the main pain your product solves for them?
- Any geographic constraints?
Step 2 — Determine the list type
Ask (or infer from context):
"Are you looking for contacts (specific people to email) or accounts (companies to target first)?"
- Contacts first → Route to People Finder mode — find the right person at the right company
- Accounts first → Route to Company Finder mode — identify which companies match, then find the contact
- Both → Start with Company Finder to validate the account list, then People Finder to identify the right contact within each company
Explain the difference briefly:
"Company Finder helps you identify which organizations match your ICP. People Finder helps you find the right person at those organizations. For most outbound motions, you want both — companies first, then contacts."
Show full SKILL.md (182 more words)Show less
Step 3 — Route with context
Hand off to the relevant skill with a clear summary of what's been established:
If routing to People Finder:
"Let's configure your contact search in lemlist. Here's what we're working with: [ICP summary]. I'll walk you through the filters step by step."
If routing to Company Finder:
"Let's identify which companies to target using lemlist's signals. Here's what we're working with: [ICP summary]. I'll walk you through the configuration."
If doing both:
"We'll do this in two steps: first find the right companies, then identify the right contact at each one. Starting with company-level targeting."
Key principle to communicate
Every list-building decision should serve one goal: get a smaller, more targeted list, not a bigger one.
Share this data point when relevant: in lemlist campaign data, lists of 6–50 leads achieve 5.3% global reply rate vs. 1.1% for lists of 1,000+. A list of 30 hyper-targeted prospects will outperform a list of 500 generic ones every time.
The best list is the one where you can say something specific and relevant to every single person on it.
© Othmane-Khadri, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
Files
Just SKILL.md in .claude/skills/lemlist/list-builder of Othmane-Khadri/YALC-the-GTM-operating-system.
Open the folder on GitHubat commit 5686d1f
Compare with similar skills
List Builder next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| List Builder this skillOthmane-Khadri/YALC-the-GTM-operating-system | 317 | — | ~878 | Automated safety check: Pass | MIT | |
| Campaign Planrongxinzy/RongxinAI | 154 | 1 repos | ~3.6k | Automated safety check: Pass | Apache-2.0 | |
| LinkedIn Authority BuilderBrianRWagner/ai-marketing-claude-code-skills | 440 | — | ~1.9k | Automated safety check: Pass | None | |
| Social Measurement Loopaaron-he-zhu/aaron-marketing-skills | 2.9k | — | ~3.2k | Automated safety check: Pass | Apache-2.0 | |
| Chuhai Market Entrymohitagw15856/pm-claude-skills | 1.4k | — | ~1.2k | Automated safety check: Pass | MIT | |
| Find Leadseracle/OpenOutreach | 3.2k | — | ~4.6k | Automated safety check: Pass | GPL-3.0 |
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Related
Categories
Questions about List Builder
What does List Builder do?
Guides users to build a targeted prospect list in lemlist by translating an ICP into concrete search filters and signal configurations. List Builder is an agent skill from Othmane-Khadri/YALC-the-GTM-operating-system. Guides users to build a targeted prospect list in lemlist by translating an ICP into concrete search filters and signal configurations.
When should I use List Builder?
List Builder fits situations like: asked build me a list; find me prospects; how do I find companies to target; help me build a prospect list.
How do I install List Builder in Claude Code?
Run `npx skills add Othmane-Khadri/YALC-the-GTM-operating-system --skill list-builder -a claude-code`. Or copy the skill folder (.claude/skills/lemlist/list-builder in Othmane-Khadri/YALC-the-GTM-operating-system) into .claude/skills/list-builder in your project. Claude Code loads it when a task matches its description.
How do I install List Builder in Codex?
Run `npx skills add Othmane-Khadri/YALC-the-GTM-operating-system --skill list-builder -a codex`. Or copy the skill folder (.claude/skills/lemlist/list-builder in Othmane-Khadri/YALC-the-GTM-operating-system) into .agents/skills/list-builder in your project. Codex loads it when a task matches its description.
Can I use List Builder in Cursor, Gemini CLI or GitHub Copilot?
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add Othmane-Khadri/YALC-the-GTM-operating-system --skill list-builder -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/list-builder, .gemini/skills/list-builder, .github/skills/list-builder and .opencode/skills/list-builder in your project.
What does List Builder need to run?
SKILL.md names no scripts, command-line tools or credentials: List Builder is instructions for the agent only.
Does List Builder access the network?
SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.
Is List Builder safe to install?
Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.
What licence does List Builder use?
List Builder is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.
How many tokens does List Builder use?
About 878 tokens (SKILL.md is roughly 3.5k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.
What are the alternatives to List Builder?
Skills that share tags, products or a category with List Builder: Campaign Plan (rongxinzy/RongxinAI, 154 stars), LinkedIn Authority Builder (BrianRWagner/ai-marketing-claude-code-skills, 440 stars), Social Measurement Loop (aaron-he-zhu/aaron-marketing-skills, 2.9k stars) and Chuhai Market Entry (mohitagw15856/pm-claude-skills, 1.4k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains List Builder?
Othmane-Khadri (a GitHub user) maintains it in Othmane-Khadri/YALC-the-GTM-operating-system, which has 317 GitHub stars. The repository holds 57 skills in this directory. The repository was last updated on August 20, 2026.
Source: Othmane-Khadri/YALC-the-GTM-operating-system on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.