Systems Lab

Agent skill

find-lookalikes

Find companies similar to a seed domain via PredictLeads' similar_companies endpoint and persist them as a result set ready for enrichment or qualification.

activeNeeds a keyActs undeclared237 words

Filed under Prospecting and list building.

From Othmane-Khadri/YALC-the-GTM-operating-system · 61 skills · 290 · pushed 2026-08-20

What it does when it runs

Find companies similar to a seed domain via PredictLeads' similar_companies endpoint and persist them as a result set ready for enrichment or qualification. Use when the user says 'find lookalikes for [domain]', 'companies similar to [name]', 'show me lookalike accounts', 'expand from this company', or 'discover similar prospects'. Side-effecting — calls PredictLeads API and writes to local cache.

Read from the skill and the 1 file bundled beside it. A skill’s own description is written to be selected by an agent, so it describes the job and not the dependencies.

Keys and connectors you must supply
  • PREDICTLEADS_API_KEY
Hosts it reaches
No third-party host appears in the skill or its bundled files.
Tool permissions it declares
No allowed-tools in the frontmatter. It does act, so it runs under whatever permissions your session already grants.
Actions present in the files
shell

Ask about find-lookalikes

Opens your assistant with this page's verified links already in the prompt.

Is this safe to install?ClaudeChatGPT
Adapt it to my stackClaudeChatGPT
What else do I need for it to workClaudeChatGPT
Rather ask a human? Talk to Cheetah

Install it

View source on GitHub ↗
git clone --depth 1 --filter=blob:none --sparse https://github.com/Othmane-Khadri/YALC-the-GTM-operating-system.git /tmp/YALC-the-GTM-operating-system
git -C /tmp/YALC-the-GTM-operating-system sparse-checkout set ".claude/skills/find-lookalikes"
mkdir -p ~/.claude/skills/find-lookalikes
cp -R "/tmp/YALC-the-GTM-operating-system/.claude/skills/find-lookalikes/." ~/.claude/skills/find-lookalikes/

Picked up without a restart. A project skill of the same name is shadowed by your personal one. For one repository only, swap ~/.claude/skills for .claude/skills. Claude Code docs ↗

The folder is the same in every client that implements the format — 46 of them — so if yours is not above, only the destination changes.

Before you install: this skill will not complete its job on a bare agent. It needs PREDICTLEADS_API_KEY, which you have to obtain separately.

The skill

Source on GitHub ↗

Reproduced in full from Othmane-Khadri/YALC-the-GTM-operating-system/blob/5686d1f2f526346133f78eef3349fc5a655757b4/.claude/skills/find-lookalikes/SKILL.md, which is licensed MIT (repository). 237 words, 10 headings.

Find Lookalikes

I'll wrap signals:similar. Ask for a seed domain, shell out to PredictLeads, dedupe + cache, and surface the lookalike list as a result set.

When This Skill Applies

  • "find lookalikes for [domain]"
  • "companies similar to [name]"
  • "show me lookalike accounts"
  • "expand from this company"
  • "discover similar prospects"

NOT this skill (use prospect-discovery-pipeline instead):

  • "find prospects like our best client" — that's the full 5-phase orchestrator (lookalikes → ICP filter → CMO finder → signals → variants).

NOT this skill (use enrich-with-signals instead):

  • "enrich these companies with PredictLeads signals" — that pulls jobs/news/funding/tech for an EXISTING list.

Workflow

Step 0 — Ask for seed domain

"What's the seed domain or company URL?"

Step 1 — Validate (basic domain format)

Step 2 — Shell out

cd ~/Desktop/gtm-os && set -a && source .env.local && set +a && \
  npx tsx src/cli/index.ts signals:similar --domain <domain>

Single-command side-effecting → shell out per the benchmark.

Step 3 — Parse output

The CLI emits the lookalike list + result set id + cache hit/miss flags.

Step 4 — Render

See references/example-output.md.

Step 5 — Offer follow-ups

"Want me to (a) enrich these with signals via enrich-with-signals, (b) qualify them via qualify-leads?"

Notes

  • Requires PREDICTLEADS_API_KEY in ~/.gtm-os/.env.
  • Cached 7 days per seed domain.
  • ~1 PredictLeads credit per call.

Files bundled with it

These load only when the skill asks for them, so they cost nothing until it runs.

Other skills for the same job

Different authors, same problem. Matched on the words in the skill name, across every library in the catalogue except this one.

Need help setting it up?

This page tells you what find-lookalikes does and what it needs. Cheetah builds the agent setup it runs inside: data, CRM, sequencing and the guardrails.

Book a call →

The directory stays free. There is nothing gated behind this.