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.
npx skills add growthenginenowoslawski/coldoutboundskills --skill blitz-list-buildergit clone --depth 1 https://github.com/growthenginenowoslawski/coldoutboundskillsWrote 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.
[](https://agentmods.dev/skills/growthenginenowoslawski/coldoutboundskills/blitz-list-builder)<a href="https://agentmods.dev/skills/growthenginenowoslawski/coldoutboundskills/blitz-list-builder"><img src="https://agentmods.dev/badge/skills/growthenginenowoslawski/coldoutboundskills/blitz-list-builder/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/growthenginenowoslawski/coldoutboundskills/blitz-list-builder"><img src="https://agentmods.dev/badge/skills/growthenginenowoslawski/coldoutboundskills/blitz-list-builder.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector warn
SkillSpector: 2 findings, up to medium
These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →
- medium MCP Rug Pull · line 47 npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.Fix: Pin the version: npx @scope/[email protected]
- medium MCP Rug Pull · line 53 npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.Fix: Pin the version: npx @scope/[email protected]
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 | $0.00087 | $0.01974 |
| Opus 5.5 | $0.00035 | $0.00790 |
| Sonnet 5.5 | $0.00017 | $0.00395 |
| Haiku 4.5 | $0.00009 | $0.00197 |
Grade A, and why
blitz-list-builder 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 1mo 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.
Copies of this mod
1 near-identical copy found in the catalogue:
- blitz-list-builder — 100% identical, 14 lines differ
How it starts
The opening of the file, as written. The whole thing — 171 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Blitz List Builder
Prospeo is title-first: "all VPs of Marketing in B2B SaaS." Blitz is domain-first: "for each of these 500 restaurant domains, find the owner."
If you already know the target companies (from Google Maps, a CSV of competitors, or a manually-curated list), Blitz finds the people for you.
When to use Blitz vs Prospeo
| Your situation | Use |
|---|---|
| "I have 5,000 domains, find the owners" | Blitz |
| "Find all CFOs at US SaaS companies 100-500 employees" | Prospeo |
| "I need to supplement Prospeo results with additional contacts at the same companies" | Blitz |
| "I want the widest net possible in a vertical" | Prospeo |
| "I'm targeting specific named accounts (ABM)" | Blitz |
Often: use Prospeo to build the initial list, then Blitz to add 1-2 more contacts per company.
Prerequisites
- Blitz API key (env:
BLITZ_API_KEY) — sign up at their website - List of target company domains (CSV with a
company_domaincolumn, or one domain per line)
Inputs
--domains-file=<path>— CSV or txt with company domains (one per line, or a column namedcompany_domain)--titles=<csv>— comma-separated title keywords to filter (default:owner,founder,ceo,president,cto,vp)--out=<path>— CSV output path
Outputs
CSV with columns: company_domain, first_name, last_name, job_title, linkedin_url, email, email_source, company_name, company_industry, company_headcount, company_phone
Email will be populated when Blitz returns one. Use /list-builder Phase 5 (scripts/contacts.ts) on the output to fill in missing emails, then validate with MillionVerifier (/cold-email-starter-kit).
Usage
export BLITZ_API_KEY=xxx
# Pull owner/founder/CEO contacts for 5000 SMB domains
npx tsx scripts/find-contacts.ts \
--domains-file=restaurants.csv \
--titles=owner,founder,ceo,general-manager \
--out=restaurant-owners.csv
# Domain-first discovery with custom title match
npx tsx scripts/find-contacts.ts \
--domains-file=saas-companies.txt \
--titles=vp-marketing,head-of-growth,cmo,director-marketing \
--out=saas-marketers.csv
What ships with it
1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
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.
- 1mo ago Changed · +3 tokens per session be3fd14aa201
- 2mo ago First seen · 171 lines · 84 tokens per session scan A 3c537d6380a7
blitz-list-builder is a skill published in the GitHub repository growthenginenowoslawski/coldoutboundskills (802 stars, last pushed 1mo ago), licensed MIT. It adds 87 tokens to every session and 1,974 once invoked, about $0.0003 per session on Opus 5.5. 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.
blitz-list-builder compared with skills from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| blitz-list-buildergrowthenginenowoslawski/coldoutboundskills | Skill | 802 | 1mo ago | MIT | A | 87 | Claude Code, Codex |
| imagegenopenai/codex | Skill | 133k | today | Apache-2.0 | A | 113 | Codex |
| playwright-climicrosoft/playwright | Skill | 99k | yesterday | Apache-2.0 | A | 19 | Claude Code |
| local-ai-agentsmicrosoft/ai-agents-for-beginners | Skill | 79k | 4d ago | MIT | A | 200 | Claude Code, Codex |
| systematic-debuggingobra/superpowers | Skill | 313k | 3d ago | MIT | A | 21 | Claude Code |
| next-cache-components-adoptionvercel/next.js | Skill | 143k | today | MIT | A | 95 | Claude Code |
| chat-pet-sprite-creationmicrosoft/vscode | Skill | 195k | today | MIT | A | 53 | Claude Code, Codex |