What is deliverability-test-public?

A reporting tool that compares Smartlead email results by inbox type: SMTP, Gmail, and Outlook. It examines reply rates, bounce rates, and positive reply rates for a chosen time period.

Use it to compare inbox performance across an account or sub-client, investigate bounce differences, and review recent or same-day results.

It helps identify whether one kind of sending inbox performs worse or better in a campaign that uses several types.

deliverability-test-public — Skill for Claude Code by AlexisMarasigan

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 AlexisMarasigan/coldoutboundskills --skill deliverability-test-public

Clone the repo

git clone --depth 1 https://github.com/AlexisMarasigan/coldoutboundskills

Made for: Claude Code.

Or install coldoutboundskills, the plugin that ships this one along with the rest of its 28 skills.

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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/alexismarasigan/coldoutboundskills/deliverability-test-public/github.svg)](https://agentmods.dev/skills/alexismarasigan/coldoutboundskills/deliverability-test-public)

Your own site

<a href="https://agentmods.dev/skills/alexismarasigan/coldoutboundskills/deliverability-test-public"><img src="https://agentmods.dev/badge/skills/alexismarasigan/coldoutboundskills/deliverability-test-public/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.

Your own site · 80×15

<a href="https://agentmods.dev/skills/alexismarasigan/coldoutboundskills/deliverability-test-public"><img src="https://agentmods.dev/badge/skills/alexismarasigan/coldoutboundskills/deliverability-test-public.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 72 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 1,024 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.

Origin 100% copy Near-identical to another mod 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.

Model	Per session	Once invoked
Fable 5.1	$0.00072	$0.01024
Opus 5.5	$0.00029	$0.00410
Sonnet 5.5	$0.00014	$0.00205
Haiku 4.5	$0.00007	$0.00102

Measured 2mo ago against content hash 020635adb484, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

deliverability-test-public 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 2mo ago.

The scan reads SKILL.md. This mod also ships 1 executable file (scripts/inbox-type-compare.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

This is a copy

100% identical to deliverability-test-public — 0 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

skills/deliverability-test-public/SKILL.md · 88 lines

How it starts

The opening of the file, as written. The whole thing — 88 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Deliverability Test — Inbox Type Comparison

Compare reply rates, bounce rates, and positive reply rates broken down by inbox type (SMTP, Gmail / G Suite, Outlook / Office365) across your Smartlead account. Use it to answer "are my Gmail inboxes performing better than my SMTP ones?" or "why is one inbox type bouncing more than the others?"

Why this exists

Different inbox types have different deliverability characteristics:

Gmail / G Suite — highest trust, fewest bounces, often best reply rates
Office365 — good reputation, but stricter spam filtering
SMTP (Zapmail, Maildoso, Mailforge, custom) — varies wildly by provider, often has higher bounces in the first 30 days of domain life

If your campaigns mix inbox types, this skill shows which type is earning its keep.

What you need

SMARTLEAD_API_KEY in env
Optional: --client-id=<id> for sub-clients
Optional: --days=<N> lookback (default 7)

Steps

# Full account, last 7 days
npx tsx scripts/inbox-type-compare.ts

# Specific sub-client, 14-day lookback
npx tsx scripts/inbox-type-compare.ts --client-id=5560 --days=14

# Just show today
npx tsx scripts/inbox-type-compare.ts --days=1

Output

Inbox Type Comparison — last 7 days

Type              Inboxes    Sent     Replies   Bounces    Reply %   Bounce %
---------------   ------   -------   -------   -------    -------   --------
G Suite               12    3,120       42        12        1.35%      0.38%
Office365             24    6,440       65        28        1.01%      0.43%
SMTP                  44   10,780       55        98        0.51%      0.91%
---------------   ------   -------   -------   -------    -------   --------
TOTAL                 80   20,340      162       138        0.80%      0.68%

Takeaways:
- G Suite has the highest reply rate (1.35%) and lowest bounce rate.
- SMTP reply rate is 60% lower than G Suite — investigate domain reputation.
- SMTP bounce rate is 2x average — run /email-deliverability-audit on SMTP domains.

Read the full file on GitHub · 88 lines

Files

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.

scripts/inbox-type-compare.ts 7.2 KB runs code

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.

2mo ago First seen · 88 lines · 72 tokens per session scan A 020635adb484

Subscribe to this mod's changes

deliverability-test-public is a skill published in the GitHub repository AlexisMarasigan/coldoutboundskills (5 stars, last pushed 6mo ago), licensed MIT. It adds 72 tokens to every session and 1,024 once invoked, about $0.0003 per session on Opus 5.5. A static security scan graded it A with 0 findings. It is 100% identical to deliverability-test-public, differing in 0 lines, and is treated as a copy.

Analytics and metrics Marketing and SEO

deliverability-test-public next to 6 skills from other repositories
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