cold-outbound-sequence-review

cold-outbound-sequence-review is a skill for Claude Code, Codex from mardab96/b2b-lead-generation-claude-skills. It costs 54 tokens per session (1,127 once invoked), scanned A, original, MIT.

A review of cold email sequences, which are ordered messages sent to people who did not ask to hear from you. It examines the audience, opening claim, request, schedule, and personalisation.

In plain words
What is it for?
Use it to review a complete sequence, its target audience, timing, replies, and performance, then identify which step needs changing.
Why use it?
It helps locate whether poor replies come from the recipient list, the message, the size of the request, or the sending cadence, after delivery has been checked.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it to review a complete sequence, its target audience, timing, replies, and performance, then identify which step needs changing.

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Install with agentmods
npx agentmods add skills/mardab96/b2b-lead-generation-claude-skills/cold-outbound-sequence-review
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 mardab96/b2b-lead-generation-claude-skills --skill cold-outbound-sequence-review
Clone the repo
git clone --depth 1 https://github.com/mardab96/b2b-lead-generation-claude-skills

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 cold-outbound-sequence-review

README.md
[![agentmods](https://agentmods.dev/badge/skills/mardab96/b2b-lead-generation-claude-skills/cold-outbound-sequence-review/github.svg)](https://agentmods.dev/skills/mardab96/b2b-lead-generation-claude-skills/cold-outbound-sequence-review)
Your own site
<a href="https://agentmods.dev/skills/mardab96/b2b-lead-generation-claude-skills/cold-outbound-sequence-review"><img src="https://agentmods.dev/badge/skills/mardab96/b2b-lead-generation-claude-skills/cold-outbound-sequence-review/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 cold-outbound-sequence-review

Your own site · 80×15
<a href="https://agentmods.dev/skills/mardab96/b2b-lead-generation-claude-skills/cold-outbound-sequence-review"><img src="https://agentmods.dev/badge/skills/mardab96/b2b-lead-generation-claude-skills/cold-outbound-sequence-review.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 54 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,127 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 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 $0.00054 $0.01127
Opus 5 $0.00027 $0.00563
Sonnet 5 $0.00011 $0.00225
Haiku 4.5 $0.00005 $0.00113

Measured 12d ago against content hash 7598e8b50449, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

cold-outbound-sequence-review 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 12d 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.

cold-outbound-sequence-review/SKILL.md · 87 lines

How it starts

The opening of the file, as written. The whole thing — 87 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Cold Outbound Sequence Review

Use this skill when

The sequence is written or running, and the replies are not coming.

Before this runs, confirm the emails are actually being delivered. A sequence with a deliverability problem produces the same symptom as a sequence with a copy problem, and rewriting copy fixes only one of them. That check is spam-folder-check.

Once delivery is not the issue, the cause is almost always one of four things, and they are not equally likely: who it went to, what the first line claims, how big the ask is, and how many times it lands.

Required input

  • The full sequence, every step, in order, as it actually sends.
  • Who it targets: role, company size, industry, and how the list was built.
  • The cadence, in days between steps.

Better with:

  • reply rate, positive reply rate and unsubscribe rate per step
  • open rate, treated as a soft signal because Apple Mail Privacy Protection fires the pixel on delivery
  • examples of the replies, especially negative ones
  • what you are actually selling and the deal size

Analysis workflow

  1. Read the opener as the recipient, who does not know you and did not ask. The first two lines decide everything after them, and most sequences spend both on the sender.
  2. Check the claim in the opener. It usually falls into one of three shapes: a compliment, a statistic, or an observation about their business. Only the third earns a reply reliably, and only when it is specific.
  3. Measure the ask. "Fifteen minutes to discuss how we help companies like yours" asks a stranger for a meeting on the strength of nothing. The first ask should be answerable in one line without a calendar.
  4. Check whether personalisation is real or performed. A merge field with the company name is not personalisation, and recipients read it as the opposite: proof this went to a thousand people.
  5. Walk the cadence. Steps that arrive too close together read as pressure, steps too far apart lose the thread, and steps that only say "bumping this up" teach the recipient that ignoring you works.
  6. Look for the sequence's implicit theory of why they should care, and state it plainly. Many sequences do not have one, which is the finding.
  7. Identify the single highest-leverage change, not a list of eleven improvements. Rewriting everything at once means learning nothing from the result.

Read the full file on GitHub · 87 lines

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. 12d ago First seen · 87 lines · 54 tokens per session scan A 7598e8b50449

Subscribe to this mod's changes

cold-outbound-sequence-review is a skill published in the GitHub repository mardab96/b2b-lead-generation-claude-skills (5 stars, last pushed 1mo ago), licensed MIT. It adds 54 tokens to every session and 1,127 once invoked, about $0.0003 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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