Agent skill

Haveibeenpwned

Check email/username against HIBP v3 breach database. An agent skill from taracodlabs/aiden.

Apache-2.0Auto-check: notes

Install Haveibeenpwned

skills CLI

$ npx skills add taracodlabs/aiden --skill haveibeenpwned -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI

$ gh skill install taracodlabs/aiden haveibeenpwned --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy

$ git clone --depth 1 https://github.com/taracodlabs/aiden.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/haveibeenpwned .claude/skills/haveibeenpwned && rm -rf skills-src

Use ~/.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/

Paste into Claude Code

Install the "haveibeenpwned" agent skill from https://github.com/taracodlabs/aiden/tree/main/skills/haveibeenpwned into .claude/skills/haveibeenpwned/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "haveibeenpwned", 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

$skill-installer install https://github.com/taracodlabs/aiden/tree/main/skills/haveibeenpwned

Type 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.

skills CLI

$ npx skills add taracodlabs/aiden --skill haveibeenpwned -a codex

Project install goes to .agents/skills/; add -g for ~/.codex/skills/.

GitHub CLI

$ gh skill install taracodlabs/aiden haveibeenpwned --agent codex

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/taracodlabs/aiden.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/haveibeenpwned .agents/skills/haveibeenpwned && rm -rf skills-src

Use ~/.agents/skills/ instead of .agents/skills for a personal install.

Codex skills documentation · loads skills from .agents/skills/

Paste into Codex

Install the "haveibeenpwned" agent skill from https://github.com/taracodlabs/aiden/tree/main/skills/haveibeenpwned into .agents/skills/haveibeenpwned/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "haveibeenpwned", 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.

skills CLI

$ npx skills add taracodlabs/aiden --skill haveibeenpwned -a cursor

Project install goes to .agents/skills/; add -g for ~/.cursor/skills/.

GitHub CLI

$ gh skill install taracodlabs/aiden haveibeenpwned --agent cursor

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/taracodlabs/aiden.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/haveibeenpwned .cursor/skills/haveibeenpwned && rm -rf skills-src

Use ~/.cursor/skills/ instead of .cursor/skills for a personal install.

Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/

Paste into Cursor

Install the "haveibeenpwned" agent skill from https://github.com/taracodlabs/aiden/tree/main/skills/haveibeenpwned into .cursor/skills/haveibeenpwned/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "haveibeenpwned", 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

$ gemini skills install https://github.com/taracodlabs/aiden.git --path skills/haveibeenpwned

--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.

skills CLI

$ npx skills add taracodlabs/aiden --skill haveibeenpwned -a gemini-cli

Project install goes to .agents/skills/; add -g for ~/.gemini/skills/.

GitHub CLI

$ gh skill install taracodlabs/aiden haveibeenpwned --agent gemini-cli

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/taracodlabs/aiden.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/haveibeenpwned .gemini/skills/haveibeenpwned && rm -rf skills-src

Use ~/.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/

Paste into Gemini CLI

Install the "haveibeenpwned" agent skill from https://github.com/taracodlabs/aiden/tree/main/skills/haveibeenpwned into .gemini/skills/haveibeenpwned/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "haveibeenpwned", 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.

GitHub CLI

$ gh skill install taracodlabs/aiden haveibeenpwned

Installs 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).

skills CLI

$ npx skills add taracodlabs/aiden --skill haveibeenpwned -a github-copilot

Project install goes to .agents/skills/; add -g for ~/.copilot/skills/.

Manual copy

$ git clone --depth 1 https://github.com/taracodlabs/aiden.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/haveibeenpwned .github/skills/haveibeenpwned && rm -rf skills-src

Use ~/.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/

Paste into GitHub Copilot

Install the "haveibeenpwned" agent skill from https://github.com/taracodlabs/aiden/tree/main/skills/haveibeenpwned into .github/skills/haveibeenpwned/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "haveibeenpwned", 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.

skills CLI

$ npx skills add taracodlabs/aiden --skill haveibeenpwned -a opencode

OpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.

GitHub CLI

$ gh skill install taracodlabs/aiden haveibeenpwned --agent opencode

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/taracodlabs/aiden.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/haveibeenpwned .opencode/skills/haveibeenpwned && rm -rf skills-src

Use ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.

OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/

Paste into OpenCode

Install the "haveibeenpwned" agent skill from https://github.com/taracodlabs/aiden/tree/main/skills/haveibeenpwned into .opencode/skills/haveibeenpwned/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "haveibeenpwned", 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: haveibeenpwned
GitHub stars: 852
Token cost: ~879 tokens
SKILL.md length: 245 words
Files: 3
Skills in repo: 63
Repo updated: Sep 13, 2026
First seen: Oct 7, 2026
Licence: Apache-2.0

At a glance

Check email/username against HIBP v3 breach database. An agent skill from taracodlabs/aiden.

SKILL.md covers When to Use, How to Use, Examples and Cautions, plus 1 more section
Runs TypeScript scripts from its folder; reaches haveibeenpwned.com; needs HIBP_API_KEY

What it does

Haveibeenpwned is an agent skill from taracodlabs/aiden. Check email/username against HIBP v3 breach database

Its SKILL.md is about 880 tokens, which your agent loads only when the skill is triggered. The skill folder holds 2 other files (for example `index.ts` and `skill.json`).

The repository describes itself as: Aiden — an autonomous AI agent and work engine built solo. It can operate your browser, terminal, files, apps, APIs, skills and tools, remember context, recover from failures… The licence is Apache-2.0.

Example prompts

“/haveibeenpwned”

Requirements

Node.js
A credential in HIBP_API_KEY

What it can do on your machine

Read from SKILL.md and the folder at commit 3704204. 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
Ships script files (TypeScript), which the agent can run.
From the folder's file list and the shell code blocks in SKILL.md.
Network
Hosts in commands or code, which the agent is likely to contact:
- haveibeenpwned.com
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names these keys or tokens, usually read from environment variables:
- HIBP_API_KEY
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Haveibeenpwned loads about 879 tokens when it runs. Until then it costs about 17 tokens; SKILL.md has 245 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it: ~17
When it runs · the whole SKILL.md, loaded when a task matches: ~879

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: notes

The automated check noted patterns worth knowing about, such as sudo or a known installer.

NoteMentions a .env fileSKILL.md:17

**Requires:** `HIBP_API_KEY` in `.env` — $3.50/month subscription at haveibeenpwned.com/API/Key

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 taracodlabs/aiden at commit 3704204, republished under its Apache-2.0 licence (© taracodlabs). 245 words, ~879 tokens.

Download SKILL.mdSave it as .claude/skills/haveibeenpwned/SKILL.md (or your agent's skills folder). This skill also uses 2 other files; get the full folder from GitHub.

name: haveibeenpwned
description: Check email/username against HIBP v3 breach database
category: security
version: 1.0.0
license: Apache-2.0
origin: aiden
tags: security, breach, pwned, email, password, leak, osint, hibp
env_required: HIBP_API_KEY

Have I Been Pwned — Breach Checker

Look up whether an email address has appeared in any publicly known data breaches. Uses the Have I Been Pwned v3 API.

Requires: HIBP_API_KEY in .env — $3.50/month subscription at haveibeenpwned.com/API/Key

When to Use

User wants to know if their email was part of a data breach
User wants a list of breaches an email was found in
User is auditing accounts before a security review
User asks "was my email leaked" or "has X been pwned"

How to Use

Check a single email for breaches

powershell

$email = "user@example.com"
$key   = $env:HIBP_API_KEY
$url   = "https://haveibeenpwned.com/api/v3/breachedaccount/$([Uri]::EscapeDataString($email))?truncateResponse=false"

$result = Invoke-RestMethod -Uri $url -Headers @{ "hibp-api-key" = $key } -ErrorAction SilentlyContinue

if ($null -eq $result) {
    Write-Host "✅ $email was NOT found in any known data breaches."
} else {
    Write-Host "⚠️  $email found in $($result.Count) breach(es):"
    $result | ForEach-Object {
        Write-Host "   • $($_.Name) ($($_.BreachDate)) — $($_.DataClasses -join ', ')"
    }
}

Check which passwords were exposed (pastes)

powershell

$email = "user@example.com"
$key   = $env:HIBP_API_KEY
$url   = "https://haveibeenpwned.com/api/v3/pasteaccount/$([Uri]::EscapeDataString($email))"

$result = Invoke-RestMethod -Uri $url -Headers @{ "hibp-api-key" = $key } -ErrorAction SilentlyContinue

if ($null -eq $result) {
    Write-Host "✅ No paste exposures found for $email"
} else {
    Write-Host "Found in $($result.Count) paste(s):"
    $result | Select-Object Source, Title, Date | Format-Table
}

Bulk check a list of emails from a file

powershell

$key   = $env:HIBP_API_KEY
$emails = Get-Content "emails.txt"

foreach ($email in $emails) {
    Start-Sleep -Milliseconds 1600   # respect 1 req/1.5s rate limit
    $url = "https://haveibeenpwned.com/api/v3/breachedaccount/$([Uri]::EscapeDataString($email))"
    $res = Invoke-RestMethod -Uri $url -Headers @{ "hibp-api-key" = $key } -ErrorAction SilentlyContinue
    $status = if ($res) { "PWNED ($($res.Count) breaches)" } else { "Clean" }
    Write-Host "$email — $status"
}

Examples

"Check if test@example.com has been in any breaches" → Run the single-email check above with that address.

"Was my email leaked in the Adobe breach?" → Run the single check; then filter: $result | Where-Object Name -eq 'Adobe'

"Check all emails in a file for breaches" → Use the bulk check snippet — it respects the 1.5s rate limit automatically.

Cautions

API key is required — there is no free anonymous tier for the v3 breached-account endpoint
Rate limit is 1 request per 1.5 seconds — always add Start-Sleep -Milliseconds 1600 in loops
HTTP 404 means the email was not found (not an error) — Invoke-RestMethod -ErrorAction SilentlyContinue handles this silently
HIBP does not store plaintext passwords — it only records breach metadata and data class types
For password hash checks (k-anonymity model), use the /range/{hash5} endpoint — no API key required

Requirements

HIBP_API_KEY — subscribe at https://haveibeenpwned.com/API/Key ($3.50/month)

Files

SKILL.md and 2 other files in skills/haveibeenpwned of taracodlabs/aiden.

SKILL.md
index.ts
skill.json

Open the folder on GitHubat commit 3704204

Compare with similar skills

Haveibeenpwned 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.

Haveibeenpwned compared with similar skills
Skill	Stars	Used in	Tokens	Auto-check	Licence	Repo updated
Haveibeenpwned this skilltaracodlabs/aiden	852	—	~879	Automated safety check: Notes	Apache-2.0	27 days ago
Emailasgeirtj/system_prompts_leaks	69k	—	~3.5k	Automated safety check: Pass	CC0-1.0	yesterday
Emailscoreyhaines31/marketingskills	54k	1 repos	~2.8k	Automated safety check: Pass	MIT	2 days ago
Mailtrap Email Integrationaffaan-m/ECC	277k	1 repos	~955	Automated safety check: Pass	MIT	today
Email Marketing Biblesickn33/agentic-awesome-skills	47k	—	~8.7k	Automated safety check: Pass	MIT	2 days ago
Email Systemsdavila7/claude-code-templates	33k	2 repos	~548	Automated safety check: Pass	MIT	today

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Questions about Haveibeenpwned

What does Haveibeenpwned do?

Check email/username against HIBP v3 breach database. An agent skill from taracodlabs/aiden. Haveibeenpwned is an agent skill from taracodlabs/aiden.

How do I install Haveibeenpwned in Claude Code?

Run `npx skills add taracodlabs/aiden --skill haveibeenpwned -a claude-code`. Or copy the skill folder (skills/haveibeenpwned in taracodlabs/aiden) into .claude/skills/haveibeenpwned in your project. Claude Code loads it when a task matches its description.

How do I install Haveibeenpwned in Codex?

Run `npx skills add taracodlabs/aiden --skill haveibeenpwned -a codex`. Or copy the skill folder (skills/haveibeenpwned in taracodlabs/aiden) into .agents/skills/haveibeenpwned in your project. Codex loads it when a task matches its description.

Can I use Haveibeenpwned 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 taracodlabs/aiden --skill haveibeenpwned -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/haveibeenpwned, .gemini/skills/haveibeenpwned, .github/skills/haveibeenpwned and .opencode/skills/haveibeenpwned in your project.

What does Haveibeenpwned need to run?

Going by SKILL.md and its folder, Haveibeenpwned needs TypeScript for the scripts in its folder and credentials named HIBP_API_KEY. Our summary lists: Node.js; A credential in HIBP_API_KEY.

Does Haveibeenpwned access the network?

SKILL.md names 1 domain. In commands or code: haveibeenpwned.com; the agent is likely to contact it when it follows the instructions. This is read from the text; nothing was executed.

Is Haveibeenpwned safe to install?

Our automated static check of SKILL.md found notes only (mentions a .env file), nothing it rates as a warning. It is not a guarantee. Review the folder before installing.

What licence does Haveibeenpwned use?

Haveibeenpwned is published under the Apache-2.0 licence (declared in SKILL.md). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Haveibeenpwned use?

About 879 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 Haveibeenpwned?

Skills that share tags, products or a category with Haveibeenpwned: Email (asgeirtj/system_prompts_leaks, 69k stars), Emails (coreyhaines31/marketingskills, 54k stars), Mailtrap Email Integration (affaan-m/ECC, 277k stars) and Email Marketing Bible (sickn33/agentic-awesome-skills, 47k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Haveibeenpwned?

taracodlabs (a GitHub organization) maintains it in taracodlabs/aiden, which has 852 GitHub stars. The repository holds 63 skills in this directory. The repository was last updated on September 13, 2026.

Source: taracodlabs/aiden on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.

Install Haveibeenpwned

Facts

At a glance

What it does

Example prompts

Requirements

What it can do on your machine

Tool permissions

Runs code

Network

Credentials

Context cost

Safety

SKILL.md

Have I Been Pwned — Breach Checker

When to Use

How to Use

Check a single email for breaches

Check which passwords were exposed (pastes)

Bulk check a list of emails from a file

Examples

Cautions

Requirements

Files

Compare with similar skills

Similar skills

More from taracodlabs/aiden

Questions about Haveibeenpwned