Lookalike Accounts logo

Lookalike Accounts

Organization
explorium-ai
lookalike-accounts

Lookalike company API skill for Claude Code and Codex: find companies that resemble a seed account by reconstructing its firmographic, technographic, and industry profile, then surfacing similar companies from Explorium's 150M+ business dataset. Use for territory expansion, TAM analysis, competitive mapping, account list extension, and finding audience twins. Triggers on 'find companies like', 'lookalike accounts', 'similar companies to', 'expand my territory', 'audience twins'. Works in Claude Code, Codex, and Hermes-Agent.

Overview

Publisherexplorium-ai
Repositorygtm-skills
Skill namelookalike-accounts
Stars
293
Forks
3
Bundled files
Instructions only
LicenseMIT
Links
  • Markdown instructions

    A SKILL.md file the model loads on demand, so it only costs tokens when a request actually matches.

  • Works with any LLM

    AI skills are plain Markdown, not provider-specific code, so this works with GPT, Claude, Gemini, Grok, or a local model.

  • Self-contained

    Everything the model needs lives in the instructions — no extra files to sync.

  • Open source

    Published by explorium-ai on GitHub. Read the source before you install it.

Installation

Install the Lookalike Accounts AI skill in TypingMind to use it with any LLM, or drop it into another agent that reads SKILL.md.

1

Install in TypingMind

TypingMind installs a skill straight from its GitHub folder — it reads SKILL.md, bundles the resource files, and stores the result locally.

  1. Open the app and go to Plugins → Skills.
  2. Choose "Install from GitHub".
  3. Paste the skill folder URL below and confirm.
    https://github.com/explorium-ai/gtm-skills/tree/main/skills/lookalike-accounts
  4. Enable the skill in any chat where you want it available.
Plugins → Skills → Add skill → From GitHub URL, then paste the folder URL and press Continue.
2

Install in another agent

Any agent that reads the Agent Skills format can use this skill — copy the folder into that agent's skills directory.

Claude Code — .claude/skills
git clone --depth 1 https://github.com/explorium-ai/gtm-skills.git /tmp/gtm-skills
mkdir -p .claude/skills
cp -r /tmp/gtm-skills/skills/lookalike-accounts .claude/skills/lookalike-accounts
Restart Claude Code after copying so it picks up the new skill.

Use it in TypingMind

Enable Lookalike Accounts in any TypingMind chat and the model takes it from there. Its name and description sit in the system prompt, and the moment a request matches, the model loads the full instructions itself — you never invoke it by hand, and it costs no tokens until it is actually used.

The model loads Lookalike Accounts on its own as soon as a request matches it.

Works with any AI model

AI skills are plain Markdown instructions rather than provider-specific code, so Lookalike Accounts is not tied to the model it was written for. Install it once in TypingMind and use it with GPT-5, Claude, Gemini, Grok, DeepSeek, Mistral, Llama, or a local model you run yourself — all on your own API keys.

  • Loaded only when it is needed

    The system prompt carries just the name and description. The instructions are fetched on the first matching request, so an idle skill costs nothing.

  • Switch models mid-chat

    Because the skill is instructions rather than code, changing model does not break it — the next model reads the same SKILL.md.

Skill instructions

This is the SKILL.md content the model loads. Read it before installing — a skill is instructions your model will follow.

Lookalike Accounts

Reconstruct the profile of one seed company, then surface other companies that share its industry, size, region, and tech stack.

Input

The user supplies via $ARGUMENTS:

  • A seed company name or domain (required).
  • Optional: how many lookalikes to return (default 25, ceiling 100).
  • Optional overrides: country focus (country codes or grouped regions, pick one), size or revenue bucket, public-only flag, additional named tech stack components.

If the user gives only a person or asks for similar contacts, redirect them to a prospecting flow. This skill returns accounts.

Workflow

  1. Resolve the seed. Match the supplied name or domain. If multiple candidates return, pick the highest-confidence match whose domain aligns with the user input and confirm the chosen company back in the final output. If nothing resolves, stop and ask for a clearer identifier (domain preferred).

  2. Domain-variant sanity check. After firmographics land, if a major-brand input resolves to a row with headcount 1-50 and NAICS 551114 (Corporate Managing Offices) or SIC Hotels and motels, the match likely routed to a registered-agent shell. Re-try with the alternate domain or with the company name string. A broken seed produces garbage lookalikes.

  3. Reconstruct the seed profile. Enrich firmographics and technographics on the seed. Extract:

    • Industry category (LinkedIn or NAICS, whichever is populated; the two are mutually exclusive as filters).
    • Headcount bucket and revenue bucket.
    • Country code (or regional grouping if the seed is multinational and the user asked for regional scope).
    • Top 3-5 tech stack values, biased toward category-defining tools (CRM, MAP, data warehouse, primary cloud) over ubiquitous infrastructure (Analytics, jQuery). Skip any field that comes back empty: never fabricate a value.
  4. Discover canonical values for the reconstructed industry and each tech token. Drop any value that does not resolve cleanly. Bucket enums and country codes do not need discovery.

  5. Apply user overrides. If the user specified country, size, revenue, public-only, or extra tech filters, replace or extend the reconstructed values with the overrides. Honor the mutual exclusivity rule between LinkedIn and NAICS industry, and between country code and grouped region.

  6. Size the candidate pool. Get a total count for the assembled filters. If below the requested return size, relax the most restrictive filter first: drop the 5th tech, then 4th, then 3rd, then collapse the headcount bucket to an adjacent one. Re-size after each step. If the count exceeds 5,000, tighten by adding back a tech filter or narrowing region. Report the final candidate count in the output.

  7. Fetch lookalikes. Sample the validated filter set to surface candidates, then export the user-requested count via the paid export path for the full materialized list. Exclude the seed before display.

Output Format

Header

Lookalikes for [Seed Company Name] ([seed domain]) Reconstructed profile: [industry] | [headcount bucket] | [revenue bucket] | [country or region] | Tech: [comma-separated tech list]. Candidate pool: [N] companies matching this profile. Returning top [requested count].

Results Table

RankCompanyDomainIndustryEmployeesRevenueCountry

Show the user-requested count (default 25, cap 100). Always exclude the seed.

Pattern Notes

2-4 bullets covering dominant geography, size concentration, tech-overlap density (tech filters are not fully populated on every row), and any adjacency the filter set introduced (e.g. "industry widened because LinkedIn category was empty on seed").

Suggested Next Steps

Pull contacts at any of these accounts via the list-builder flow scoped by the businesses table; deepen one row with the enrich-company flow; watch the list for growth events on the reconstructed cohort.

Limitations

  • No native similarity model. There is no lookalike API or ML similarity score. This skill approximates similarity by reconstructing the seed's firmographics, technographics, and industry, then doing a filtered company fetch on those reconstructed attributes. The native flow is match-seed, enrich attributes, then re-fetch with attributes. Results are ranked by default fetch order, NOT by a true similarity score.
  • No similarity ranking column. No per-row similarity score is computed: rank reflects fetch order.
  • Industry classification gaps. If neither LinkedIn nor NAICS category is populated, the skill falls back to size + region + tech, producing a looser approximation. Flag this in the output.
  • Tech stack coverage is partial. Tech tokens are not exhaustively populated, so filtering on multiple values can collapse the candidate pool faster than expected. The relaxation logic in step 6 handles this.
  • Bucketed size and revenue. A seed at the high edge of one bucket and a candidate at the low edge of the next can look further apart than they are.
  • Region taxonomy is country-level. No metro or sub-country scope.
  • High-profile execs at these accounts often have suppressed contact data: if the user pivots to "who runs these", recommend LinkedIn outreach for top execs.
  • No contact-level lookalikes. This skill returns accounts only.

Frequently asked questions

What does the Lookalike Accounts AI skill do?

Lookalike company API skill for Claude Code and Codex: find companies that resemble a seed account by reconstructing its firmographic, technographic, and industry profile, then surfacing similar companies from Explorium's 150M+ business dataset. Use for territory expansion, TAM analysis, competitive mapping, account list extension, and finding audience twins. Triggers on 'find companies like', 'lookalike accounts', 'similar companies to', 'expand my territory', 'audience twins'. Works in Claude Code, Codex, and Hermes-Agent.

Why use Lookalike Accounts on TypingMind?

Because you install it once and use it with any model. Lookalike Accounts is plain Markdown rather than provider-specific code, so the same skill runs on GPT-5, Claude, Gemini, Grok, or a local model — and you can switch model mid-chat without it breaking. TypingMind runs on your own API keys, so you pay providers directly instead of a per-seat subscription, and your skills and chats stay in your own storage.

How do I install Lookalike Accounts in TypingMind?

Open Plugins → Skills → Install from GitHub in TypingMind and paste https://github.com/explorium-ai/gtm-skills/tree/main/skills/lookalike-accounts. TypingMind reads its SKILL.md and installs it as a skill you can enable per chat.

Which AI models can use Lookalike Accounts?

Any model you connect in TypingMind. AI skills are plain Markdown instructions rather than provider-specific code, so GPT, Claude, Gemini, Grok, and local models can all load this skill when a request matches it.

How many AI models can I use with Lookalike Accounts?

As many as you like. As long as a model supports skills, you can use Lookalike Accounts with it — GPT, Claude, Gemini, Grok, DeepSeek, Mistral, Llama and more — all on TypingMind with your own API keys.

Is the Lookalike Accounts AI skill free?

Yes. It is published on GitHub by explorium-ai under the MIT license. You only pay your own AI provider for the tokens you use.

What are AI skills?

An AI skill is a reusable instruction bundle that teaches an AI model how to do one specific task. It follows the open Agent Skills format: a SKILL.md file with a name and description, plus any scripts, templates or reference files the model may need. The model reads the instructions only when your request matches the skill, so an installed skill costs nothing until it is used.

How are AI skills different from plugins or MCP servers?

A plugin or MCP server gives a model new tools to call — code that runs somewhere and returns a result. An AI skill gives the model knowledge and process instead: how to approach a task, which steps to follow, what good output looks like. Skills are plain Markdown, so they need no server, no API key and no runtime, and they work with any model.

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