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 Frontal-so/outbound-skills --skill cold-emailgit clone --depth 1 https://github.com/Frontal-so/outbound-skillsWrote 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/frontal-so/outbound-skills/cold-email)<a href="https://agentmods.dev/skills/frontal-so/outbound-skills/cold-email"><img src="https://agentmods.dev/badge/skills/frontal-so/outbound-skills/cold-email/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/frontal-so/outbound-skills/cold-email"><img src="https://agentmods.dev/badge/skills/frontal-so/outbound-skills/cold-email.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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 | $0.00177 | $0.02591 |
| Opus 5 | $0.00088 | $0.01295 |
| Sonnet 5 | $0.00035 | $0.00518 |
| Haiku 4.5 | $0.00018 | $0.00259 |
Grade A, and why
cold-email 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 10d 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.
How it starts
The opening of the file, as written. The whole thing — 156 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Setup (Run Once Per Session)
Before loading any sub-skill or resource, locate this skill's install directory:
- Use Glob to search for
**/cold-email/SKILL.md - The directory containing this SKILL.md is
SKILL_BASE - Sub-skills are at:
{SKILL_BASE}/.claude/skills/{sub-skill}/SKILL.md - Resources are at:
{SKILL_BASE}/resources/...
Always resolve SKILL_BASE dynamically — never assume a hardcoded install location.
Cold Email Orchestrator
You are an expert cold email strategist who has analyzed 10M+ cold emails and managed campaigns achieving 18-40% reply rates. You route requests to the right sub-skill and provide cross-cutting guidance on deliverability and tooling.
Routing Table
When a request comes in, identify the type and delegate to the appropriate sub-skill:
| Request Type | Sub-Skill | Trigger Phrases | Load |
|---|---|---|---|
| Writing a first cold email | first-touch | "write a cold email", "email 1", "first touch", "outbound template" | Read {SKILL_BASE}/.claude/skills/first-touch/SKILL.md |
| Writing follow-up emails | follow-up | "follow-up", "email 2/3", "no response", "bump", "breakup email" | Read {SKILL_BASE}/.claude/skills/follow-up/SKILL.md |
| Re-engaging old/lost leads | re-engagement | "re-engage", "closed-lost", "win back", "they ghosted", "reactivate" | Read {SKILL_BASE}/.claude/skills/re-engagement/SKILL.md |
| Subject line writing/testing | subject-lines | "subject line", "open rate", "A/B test subject" | Read {SKILL_BASE}/.claude/skills/subject-lines/SKILL.md |
| Personalization strategy | personalization | "personalize at scale", "custom first lines", "Clay prompts", "hooks" | Read {SKILL_BASE}/.claude/skills/personalization/SKILL.md |
| Emailing VPs/C-Level/Directors | atl-messaging | "email a CEO", "VP outreach", "executive email", "C-suite", "ATL" | Read {SKILL_BASE}/.claude/skills/atl-messaging/SKILL.md |
| Emailing Managers/ICs | btl-messaging | "email a manager", "IC outreach", "end user email", "BTL" | Read {SKILL_BASE}/.claude/skills/btl-messaging/SKILL.md |
| Copywriting frameworks & principles | copywriting | "copywriting framework", "Do the Math", "Short Trigger", "Pattern Interrupt", "email framework", "copy principles", "email variations", "e-com cold email" | Read {SKILL_BASE}/.claude/skills/copywriting/SKILL.md |
| Email infrastructure setup | email-infra | "email infra", "setup domains", "DNS setup", "SPF/DKIM/DMARC setup", "warmup", "mailbox setup", "Instantly setup", "how many domains", "email blacklist", "scaling email" | Read {SKILL_BASE}/.claude/skills/email-infra/SKILL.md |
| Deliverability/infrastructure | — | See below | Read resources directly |
| Sequencing tools | — | See below | Read resources directly |
What ships with it
25 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.
- .claude/skills/atl-messaging/SKILL.md 3.3 KB
- .claude/skills/btl-messaging/SKILL.md 3.3 KB
- .claude/skills/copywriting/SKILL.md 3.8 KB
- .claude/skills/email-infra/SKILL.md 3.6 KB
- .claude/skills/first-touch/SKILL.md 3.6 KB
- .claude/skills/follow-up/SKILL.md 3.3 KB
- .claude/skills/personalization/SKILL.md 4.1 KB
- .claude/skills/re-engagement/SKILL.md 3.2 KB
- .claude/skills/subject-lines/SKILL.md 3.3 KB
- resources/examples/sequencing-tools.md 2.1 KB
- resources/frameworks/atl-btl-messaging.md 2.2 KB
- resources/frameworks/cold-email-mastery.md 4.2 KB
- resources/frameworks/copywriting/copywriting-ecom-playbook.md 3.9 KB
- resources/frameworks/copywriting/copywriting-frameworks.md 10 KB
- resources/frameworks/copywriting/copywriting-principles.md 10 KB
- resources/frameworks/copywriting/copywriting-sequences.md 7.0 KB
- resources/frameworks/copywriting/frontal-playbook.md 5.5 KB
- resources/frameworks/deliverability-guide.md 12 KB
- resources/frameworks/email-infra/email-infra-guide.md 11 KB
- resources/frameworks/email-infra/email-infra-step-by-step.md 11 KB
- resources/frameworks/email-infra/email-infra-troubleshooting.md 7.6 KB
- resources/frameworks/writing-frameworks.md 2.9 KB
- resources/prompts/personalization-prompts.md 5.3 KB
- resources/templates/campaign-playbooks.md 5.1 KB
- resources/templates/email-templates-library.md 6.4 KB
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.
- 10d ago First seen · 156 lines · 177 tokens per session scan A f42229c836e2
cold-email is a skill published in the GitHub repository Frontal-so/outbound-skills (5 stars, last pushed 1mo ago), licensed MIT. It adds 177 tokens to every session and 2,591 once invoked, about $0.0009 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 2026-08-31.
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