What is domain-search?

A tool for finding publicly listed email addresses and contacts linked to a company's website domain.

Use it to identify employees, executives, or teams at a company and find their available work contact details.

It removes the need to search a company website and other public sources one person at a time.

domain-search — Skill for Claude Code by hunter-io

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent

npx skills add hunter-io/claude-plugin --skill domain-search

Clone the repo

git clone --depth 1 https://github.com/hunter-io/claude-plugin

Made for: Claude Code.

Or install hunter, the plugin that ships this one along with the rest of its 13 skills, 1 MCP server.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

README.md

[![agentmods](https://agentmods.dev/badge/skills/hunter-io/claude-plugin/domain-search.svg)](https://agentmods.dev/skills/hunter-io/claude-plugin/domain-search)

Your own site

<a href="https://agentmods.dev/skills/hunter-io/claude-plugin/domain-search"><img src="https://agentmods.dev/badge/skills/hunter-io/claude-plugin/domain-search.svg" alt="Measured on agentmods" height="20"></a>

Per session 44 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 874 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 pass 7 Sept 2026

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.

Model	Per session	Once invoked
Fable 5.1	$0.00044	$0.00874
Opus 5	$0.00022	$0.00437
Sonnet 5	$0.00009	$0.00175
Haiku 4.5	$0.00004	$0.00087

Measured 8d ago against content hash abc8918e51ef, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

domain-search 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 8d 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.

skills/domain-search/SKILL.md · 81 lines

How it starts

The opening of the file, as written. The whole thing — 81 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Domain Search

Find all contacts and email addresses associated with a company domain.

Examples

/hunter:domain-search stripe.com
/hunter:domain-search Notion
"Who works at figma.com?"
"Find me contacts at Salesforce"
"Show me the marketing team at hubspot.com"
"List executives at acme.com"

Steps

Parse the input. Extract the domain.
- "stripe.com" -> use directly
- "Stripe" or "stripe" -> infer domain as "stripe.com"
- If unsure about the domain, ask the user to confirm.
Free pre-check first (optional). If the user wants to size how many contacts/emails Hunter has for a domain before paying, call Email-Count before Domain-Search. It's free and takes a domain plus an optional personal/generic type. It returns email totals only — not company headcount (use company-enrichment for employee counts) — and can't filter the count by role or department (only the paid Domain-Search filters by seniority/department).
Call Domain-Search with the domain. Use server-side filters when the user specifies criteria:
- type: personal or generic
- seniority: comma-separated from junior, senior, executive
- department: comma-separated from executive, it, finance, management, sales, legal, support, hr, marketing, communication, education, design, health, operations, product, research, consulting, administrative, procurement
- required_field: full_name, position, or phone_number — only return results where this field has a value
- limit: 1-100 (default 10)
- offset: for pagination
Mapping user requests to filters:
- "marketing team" -> department: "marketing"
- "executives" / "C-suite" / "leadership" -> seniority: "executive"
- "engineering" / "developers" -> department: "it"
- "senior people" -> seniority: "senior,executive"
- No filter specified -> show the top contacts by confidence score

Read the full file on GitHub · 81 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.

8d ago First seen · 81 lines · 44 tokens per session scan A abc8918e51ef

Subscribe to this mod's changes

domain-search is a skill published in the GitHub repository hunter-io/claude-plugin (9 stars, last pushed 6d ago), licensed MIT. It adds 44 tokens to every session and 874 once invoked, about $0.0002 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.

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