smartlead-inbox-manager

smartlead-inbox-manager is a skill for Claude Code, Codex from growthenginenowoslawski/coldoutboundskills. It costs 102 tokens per session (2,451 once invoked), scanned A, original, MIT.

A set of operations for managing email inboxes in Smartlead, a platform for running email outreach campaigns. It handles warmup, signatures, tags, and inbox health information through Smartlead's API.

In plain words
What is it for?
Use it to enable or disable warmup, apply signatures in bulk, tag inboxes as active or insurance, and view sending health and reputation.
Why use it?
It removes repetitive inbox setup and gives you a consistent way to separate active sending inboxes from backup inboxes and monitor their condition.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: positional $N argument.

Good fit Use it to enable or disable warmup, apply signatures in bulk, tag inboxes as active or insurance, and view sending health and reputation.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/growthenginenowoslawski/coldoutboundskills/smartlead-inbox-manager
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 growthenginenowoslawski/coldoutboundskills --skill smartlead-inbox-manager
Clone the repo
git clone --depth 1 https://github.com/growthenginenowoslawski/coldoutboundskills

Made for: Claude Code, Codex.

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.

agentmods badge for smartlead-inbox-manager

README.md
[![agentmods](https://agentmods.dev/badge/skills/growthenginenowoslawski/coldoutboundskills/smartlead-inbox-manager/github.svg)](https://agentmods.dev/skills/growthenginenowoslawski/coldoutboundskills/smartlead-inbox-manager)
Your own site
<a href="https://agentmods.dev/skills/growthenginenowoslawski/coldoutboundskills/smartlead-inbox-manager"><img src="https://agentmods.dev/badge/skills/growthenginenowoslawski/coldoutboundskills/smartlead-inbox-manager/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.

agentmods 80×15 button for smartlead-inbox-manager

Your own site · 80×15
<a href="https://agentmods.dev/skills/growthenginenowoslawski/coldoutboundskills/smartlead-inbox-manager"><img src="https://agentmods.dev/badge/skills/growthenginenowoslawski/coldoutboundskills/smartlead-inbox-manager.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 102 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,451 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 warn 7 Sept 2026
SkillSpector: 12 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 114
    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 117
    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 171
    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 174
    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 177
    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 178
    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 185
    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 188
    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 191
    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 197
    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 214
    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 215
    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]
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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00102 $0.02451
Opus 5 $0.00051 $0.01226
Sonnet 5 $0.00020 $0.00490
Haiku 4.5 $0.00010 $0.00245

Measured 13d ago against content hash 76c0a250d8a3, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

smartlead-inbox-manager 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 13d ago.

The scan reads SKILL.md. This mod also ships 5 executable files (scripts/_lib.ts, scripts/list-health.ts, scripts/set-signatures.ts, …), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

Origin

Copies of this mod

1 near-identical copy found in the catalogue:

skills/smartlead-inbox-manager/SKILL.md · 248 lines

How it starts

The opening of the file, as written. The whole thing — 248 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Smartlead Inbox Manager

Zapmail hands you hundreds of new inboxes. Smartlead needs them configured: warmup enabled with the right ramp, signatures set so emails don't look bare, tags applied so you know which are active vs insurance, and health monitored so dead inboxes get recycled.

This skill does all of that via the Smartlead API.

Core operations

Operation What it does Script
Enable warmup Turns on warmup with correct ramp (start 1/day, +5/day up to 40/day) set-warmup.ts --mode=enable
Disable warmup Turns off warmup (use for insurance inboxes) set-warmup.ts --mode=disable
Set signatures Bulk-applies a signature template to inboxes set-signatures.ts
Tag as active Adds the "active" tag tag-inboxes.ts --tag=active
Tag as insurance Adds the "insurance" tag tag-inboxes.ts --tag=insurance
Health dashboard Lists all inboxes with warmup status, reputation, daily sent list-health.ts

Active vs insurance (the tagging convention)

Not every inbox should send all the time. A common pattern:

  • Active inboxes — currently sending in live campaigns. Warmup OFF (or minimal) to prioritize real sends.
  • Insurance inboxes — warmed but idle, held in reserve. Warmup ON to maintain reputation. Swap in when an active inbox burns out.

Tags are how you track this at scale. Filter by tag in Smartlead UI or via API.

Inputs

Every script reads:

  • SMARTLEAD_API_KEY (env var)
  • Inbox selector: --ids=1,2,3 OR --domain=example.com OR --tag=insurance OR --all
  • Operation-specific flags (see each script)

Warmup ramp settings

Default warmup config for a NEW inbox (week 1-4 of warmup period):

{
  "warmup_enabled": "true",
  "total_warmup_per_day": 40,
  "daily_rampup": 5,
  "reply_rate_percentage": "20"
}
  • total_warmup_per_day: max emails/day the inbox sends in warmup network (peak)
  • daily_rampup: increment per day (day 1 = 1, day 2 = 6, day 3 = 11, etc. up to the cap)
  • reply_rate_percentage: how often warmup peers reply (20% is realistic)

Read the full file on GitHub · 248 lines

Files

What ships with it

5 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.

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.

  1. 13d ago First seen · 248 lines · 102 tokens per session scan A 76c0a250d8a3

Subscribe to this mod's changes

smartlead-inbox-manager is a skill published in the GitHub repository growthenginenowoslawski/coldoutboundskills (702 stars, last pushed 25d ago), licensed MIT. It adds 102 tokens to every session and 2,451 once invoked, about $0.0005 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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