Marketing Os
Yuzzyuk/marketing-os
A complete marketing department in one skill. An agent skill from Yuzzyuk/marketing-os.
Define and prioritize narrow Ideal Customer Profiles (ICPs) for outbound targeting.
Install Icp Definer
$ npx skills add Othmane-Khadri/YALC-the-GTM-operating-system --skill icp-definer -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install Othmane-Khadri/YALC-the-GTM-operating-system icp-definer --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/icp-definer .claude/skills/icp-definer && 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 "icp-definer" agent skill from https://github.com/Othmane-Khadri/YALC-the-GTM-operating-system/tree/main/.claude/skills/lemlist/icp-definer into .claude/skills/icp-definer/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "icp-definer", 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/icp-definerType 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 icp-definer -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install Othmane-Khadri/YALC-the-GTM-operating-system icp-definer --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/icp-definer .agents/skills/icp-definer && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "icp-definer" agent skill from https://github.com/Othmane-Khadri/YALC-the-GTM-operating-system/tree/main/.claude/skills/lemlist/icp-definer into .agents/skills/icp-definer/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "icp-definer", 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 icp-definer -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install Othmane-Khadri/YALC-the-GTM-operating-system icp-definer --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/icp-definer .cursor/skills/icp-definer && 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 "icp-definer" agent skill from https://github.com/Othmane-Khadri/YALC-the-GTM-operating-system/tree/main/.claude/skills/lemlist/icp-definer into .cursor/skills/icp-definer/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "icp-definer", 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/icp-definer--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 icp-definer -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install Othmane-Khadri/YALC-the-GTM-operating-system icp-definer --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/icp-definer .gemini/skills/icp-definer && 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 "icp-definer" agent skill from https://github.com/Othmane-Khadri/YALC-the-GTM-operating-system/tree/main/.claude/skills/lemlist/icp-definer into .gemini/skills/icp-definer/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "icp-definer", 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 icp-definerInstalls 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 icp-definer -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/icp-definer .github/skills/icp-definer && 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 "icp-definer" agent skill from https://github.com/Othmane-Khadri/YALC-the-GTM-operating-system/tree/main/.claude/skills/lemlist/icp-definer into .github/skills/icp-definer/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "icp-definer", 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 icp-definer -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 icp-definer --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/icp-definer .opencode/skills/icp-definer && 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 "icp-definer" agent skill from https://github.com/Othmane-Khadri/YALC-the-GTM-operating-system/tree/main/.claude/skills/lemlist/icp-definer into .opencode/skills/icp-definer/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "icp-definer", 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
icp-definer- GitHub stars
- 318
- Token cost
- ~925 tokens
- SKILL.md length
- 467 words
- Files
- 1
- Skills in repo
- 57
- Repo updated
- First seen
- Licence
- MIT
At a glance
Define and prioritize narrow Ideal Customer Profiles (ICPs) for outbound targeting.
- Works in 5 steps: Gather inputs → Generate 3–5 ICP hypotheses → Score and rank → …
- Asked who should we target
- SKILL.md covers Step 1 — Gather inputs, Step 2 — Generate 3–5 ICP…, Step 3 — Score and rank and Step 4 — Full ICP cards (top 2…, plus 2 more sections
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
Icp Definer is an agent skill from Othmane-Khadri/YALC-the-GTM-operating-system. Define and prioritize narrow Ideal Customer Profiles (ICPs) for outbound targeting. Use when asked "who should we target", "define ICP", "best customers for X", "outbound targeting", "who gets most value", "segment customers", "narrow audience", "prioritize accounts", "who should we reach out to", or "build me an outbound ICP". Always use this skill before building any list or writing any outreach.
Its SKILL.md is about 930 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 Positioning and messaging. 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 who should we target
- Best customers for X
- Outbound targeting
- Who gets most value
Example prompts
- “who should we target”
- “define ICP”
- “best customers for X”
- “/icp-definer”
Workflow steps
5 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
Icp Definer loads about 925 tokens when it runs. Until then it costs about 103 tokens; SKILL.md has 467 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). 467 words, ~925 tokens.
Download SKILL.mdSave it as
.claude/skills/icp-definer/SKILL.md (or your agent's skills folder).- name
- icp-definer
- description
- Define and prioritize narrow Ideal Customer Profiles (ICPs) for outbound targeting. Use when asked "who should we target", "define ICP", "best customers for X", "outbound targeting", "who gets most value", "segment customers", "narrow audience", "prioritize accounts", "who should we reach out to", or "build me an outbound ICP". Always use this skill before building any list or writing any outreach.
ICP Definer — Who is going to buy from you
You are a B2B growth strategist. You help identify and sharpen Ideal Customer Profiles for outbound — the specific type of company most likely to buy, fast, at the right price.
The best ICPs are trigger-based and pain-driven, not demographic. "Series A SaaS hiring first SDR, using HubSpot" beats "tech startups" every time.
Step 1 — Gather inputs
Ask for in a single message:
- Product: website URL or 1-sentence description + what problem it solves
- Existing customers (if any): who are your best 2-3 customers today?
- Pricing signal: approx. price point (helps infer buyer seniority)
- Constraints: geography, industry focus, company size (if any)
If missing → infer and clearly flag assumptions with [ASSUMPTION].
Step 2 — Generate 3–5 ICP hypotheses
Each ICP must be narrow — specific enough that you could build a list tomorrow.
For each ICP include:
- Firmographics: company size, funding stage, geography, industry vertical
- Technographics: tools they use (signals stack maturity and gaps)
- Trigger events: hiring patterns, funding, leadership changes, tool adoption
- Buyer persona: exact role + their primary KPI
Good ICP: "Series A SaaS, 25–75 employees, US-based, hiring first SDR, using Salesforce but no SEP" Bad ICP: "Tech startups" or "companies that need more leads"
Step 3 — Score and rank
Score each ICP on 4 dimensions (1–5 each, max 20):
| Dimension | What it measures |
|---|---|
| Pain intensity | How acutely does this ICP feel the problem? |
| Budget | Can they buy? Do they have the authority? |
| Reachability | Can you build a list and reach them effectively? |
| Timing | Is there a trigger that creates urgency now? |
Rank top 2 ICPs for full development.
Show full SKILL.md (202 more words)Show less
Step 4 — Full ICP cards (top 2 only)
For each top ICP:
ICP [N]: [Short descriptive name] Score: X/20 (Pain: X | Budget: X | Reach: X | Timing: X)
Firmographics: [Size, stage, geo, industry] Technographics: [Key tools/stack signals] Trigger events: [What observable event opens the buying window] Buyer: [Exact title(s) + their primary KPI]
Core pain: [Specific pain this ICP faces — personal and business level] Feature mapping: [Which specific capability of the product solves it] Messaging angle: [One-liner value prop for this ICP] Proof hook: [A metric or customer example that would resonate]
List-building filters:
- Job titles: [exact titles]
- Company size: [range]
- Funding stage: [if applicable]
- Tech signals: [tools to look for]
- Hiring signals: [roles that indicate the pain]
Step 5 — If ICP is too broad
Auto-narrow by adding constraints: funding stage + specific trigger + buyer role. Never leave an ICP at "all startups" or "B2B companies".
If truly blocked (no product info): ask for website URL or 2-3 best existing customers — those always reveal the real ICP faster than any framework.
Quality bar
A good ICP passes the list-building test: can you find 500–5,000 contacts matching this profile on LinkedIn or Apollo tomorrow? If yes → good specificity. If millions → too broad. If dozens → too narrow.
© 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/icp-definer of Othmane-Khadri/YALC-the-GTM-operating-system.
Open the folder on GitHubat commit 5686d1f
Compare with similar skills
Icp Definer 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 |
|---|---|---|---|---|---|---|
| Icp Definer this skillOthmane-Khadri/YALC-the-GTM-operating-system | 318 | — | ~925 | Automated safety check: Pass | MIT | |
| Marketing OsYuzzyuk/marketing-os | 540 | — | ~2.5k | Automated safety check: Pass | MIT | |
| Revenue Centric Designheliocosta-dev/revenue-centric-design | 740 | — | ~1.6k | Automated safety check: Pass | Custom licence | |
| Startup Positioningferdinandobons/startup-skill | 1.2k | — | ~4.6k | Automated safety check: Pass | MIT | |
| Stanley Druckenmiller Investmenttradermonty/claude-trading-skills | 3k | 1 repos | ~2k | Automated safety check: Pass | MIT | |
| B2b Playbookweilun88313/B2B-Playbook | 203 | — | ~3.1k | Automated safety check: Pass | Proprietary |
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Categories
Questions about Icp Definer
What does Icp Definer do?
Define and prioritize narrow Ideal Customer Profiles (ICPs) for outbound targeting. Icp Definer is an agent skill from Othmane-Khadri/YALC-the-GTM-operating-system. Define and prioritize narrow Ideal Customer Profiles (ICPs) for outbound targeting.
When should I use Icp Definer?
Icp Definer fits situations like: asked who should we target; best customers for X; outbound targeting; who gets most value.
How do I install Icp Definer in Claude Code?
Run `npx skills add Othmane-Khadri/YALC-the-GTM-operating-system --skill icp-definer -a claude-code`. Or copy the skill folder (.claude/skills/lemlist/icp-definer in Othmane-Khadri/YALC-the-GTM-operating-system) into .claude/skills/icp-definer in your project. Claude Code loads it when a task matches its description.
How do I install Icp Definer in Codex?
Run `npx skills add Othmane-Khadri/YALC-the-GTM-operating-system --skill icp-definer -a codex`. Or copy the skill folder (.claude/skills/lemlist/icp-definer in Othmane-Khadri/YALC-the-GTM-operating-system) into .agents/skills/icp-definer in your project. Codex loads it when a task matches its description.
Can I use Icp Definer 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 icp-definer -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/icp-definer, .gemini/skills/icp-definer, .github/skills/icp-definer and .opencode/skills/icp-definer in your project.
What does Icp Definer need to run?
SKILL.md names no scripts, command-line tools or credentials: Icp Definer is instructions for the agent only.
Does Icp Definer 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 Icp Definer 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 Icp Definer use?
Icp Definer 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 Icp Definer use?
About 925 tokens (SKILL.md is roughly 3.7k 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 Icp Definer?
Skills that share tags, products or a category with Icp Definer: Marketing Os (Yuzzyuk/marketing-os, 540 stars), Revenue Centric Design (heliocosta-dev/revenue-centric-design, 740 stars), Startup Positioning (ferdinandobons/startup-skill, 1.2k stars) and Stanley Druckenmiller Investment (tradermonty/claude-trading-skills, 3k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Icp Definer?
Othmane-Khadri (a GitHub user) maintains it in Othmane-Khadri/YALC-the-GTM-operating-system, which has 318 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.