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 cold-email-starter-kitgit 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/cold-email-starter-kit)<a href="https://agentmods.dev/skills/growthenginenowoslawski/coldoutboundskills/cold-email-starter-kit"><img src="https://agentmods.dev/badge/skills/growthenginenowoslawski/coldoutboundskills/cold-email-starter-kit/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/cold-email-starter-kit"><img src="https://agentmods.dev/badge/skills/growthenginenowoslawski/coldoutboundskills/cold-email-starter-kit.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector warn
SkillSpector: 1 finding, 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 201 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 | $0.00089 | $0.03234 |
| Opus 5 | $0.00044 | $0.01617 |
| Sonnet 5 | $0.00018 | $0.00647 |
| Haiku 4.5 | $0.00009 | $0.00323 |
Grade A, and why
cold-email-starter-kit scanned grade A with 1 finding 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 13d 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.
Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
Open `references/13-troubleshooting.md`. It has an error matrix keyed by symptom → cause → fix, plus diagnostic `dig`/`curl` commands for verifying setup. Copies of this mod
1 near-identical copy found in the catalogue:
- cold-email-starter-kit — 98% identical, 6 lines differ
How it starts
The opening of the file, as written. The whole thing — 256 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Cold Email Starter Kit
A complete system for running cold email. Follow it top-to-bottom and you will have purchased domains, created warmed inboxes, built a lead list, written a campaign, and sent your first emails. Designed for beginners — no prior cold email experience required.
What you'll build
By the end of the flow you'll have:
- 10-20 throwaway sending domains purchased on Dynadot
- 20-40 warmed sending inboxes on Zapmail
- A 2,000-person lead list from Prospeo
- A 4-step email sequence with variants and personalization
- A live campaign in Smartlead or Instantly sending daily
- Analytics and reply handling set up
Total cost month 1: ~$186. Recurring: ~$126/mo. See references/00-getting-started.md for breakdown.
The end-to-end flow
- Deliverability basics → understand why we buy domains + inboxes (read once)
- Strategy → pick your offer and ICP
- Copywriting → write the sequence
- Infrastructure → buy domains, create inboxes
- List building → pull prospects from Prospeo
- Enrichment (optional) → add personalization data
- Launch → upload to Smartlead or Instantly
- Analyze + iterate → pull metrics back, tweak
Before you start: prerequisites
Technical:
- Node.js 20+ (
node --versionshould print v20 or higher) → install from nodejs.org tsx(npm install -g tsx)- Terminal comfort (you know what
cdandcpdo) - A text editor (VS Code recommended)
Accounts (sign up before continuing):
- Dynadot (domain registrar)
- Zapmail (inbox provider)
- Prospeo (lead source)
- Smartlead OR Instantly (sending platform — pick one)
Budget: ~$200 for your first campaign.
If any of the above is missing, start at references/00-getting-started.md. It has exact signup links and API-key retrieval instructions.
Recommended entry point: /cold-email-kickoff
Before reading this tutorial, invoke /cold-email-kickoff from Claude Code. It's a shorter, guided flow that orchestrates ICP onboarding + lead magnet + campaign strategy + a consolidated campaign plan — and hands you to the right next skill based on whether you have infrastructure already. Most users should start there.
What ships with it
33 files 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.
- .env.example 913 B
- references/00-getting-started.md 6.4 KB
- references/01-deliverability-fundamentals.md 7.6 KB
- references/02-campaign-strategy.md 20 KB
- references/03-campaign-copywriting.md 27 KB
- references/04-sequence-structure.md 6.9 KB
- references/05-domain-and-inbox-setup.md 15 KB
- references/06-list-building-prospeo.md 27 KB
- references/07-enrichment-library.md 7.8 KB
- references/08-smartlead-api.md 7.2 KB
- references/09-instantly-api.md 17 KB
- references/10-reply-handling.md 6.9 KB
- references/11-legal-compliance.md 7.6 KB
- references/12-launch-checklist.md 5.3 KB
- references/13-troubleshooting.md 7.5 KB
- references/14-60-minute-tutorial.md 9.2 KB
- scripts/_lib.ts 7.8 KB runs code
- scripts/dynadot-bulk-purchase.ts 3.5 KB runs code
- scripts/dynadot-generate-domains.ts 4.0 KB runs code
- scripts/enrichments/ai-company-analysis.ts 3.1 KB runs code
- scripts/enrichments/company-news.ts 3.4 KB runs code
- scripts/enrichments/company-phone.ts 2.0 KB runs code
- scripts/enrichments/linkedin-profile.ts 2.3 KB runs code
- scripts/instantly-add-leads.ts 2.3 KB runs code
- scripts/instantly-create-campaign.ts 4.2 KB runs code
- scripts/instantly-pull-analytics.ts 2.1 KB runs code
- scripts/prospeo-full-export.ts 6.0 KB runs code
- scripts/setup-env.sh 1.0 KB runs code
- scripts/smartlead-add-leads.ts 2.4 KB runs code
- scripts/smartlead-create-campaign.ts 4.8 KB runs code
- scripts/smartlead-pull-analytics.ts 2.3 KB runs code
- scripts/verify-credentials.ts 4.9 KB runs code
- scripts/zapmail-full-setup.ts 8.9 KB runs code
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.
- 13d ago First seen · 256 lines · 89 tokens per session scan A 11e7d079c23b
cold-email-starter-kit is a skill published in the GitHub repository growthenginenowoslawski/coldoutboundskills (702 stars, last pushed 25d ago), licensed MIT. It adds 89 tokens to every session and 3,234 once invoked, about $0.0004 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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