v1.0.0 to v1.0.0

---

name: verify-email-list

description: "Verify a list of email addresses so you stop sending to bounces, powered by Cargo. Triggers: \"verify these emails\", \"clean my email list\", \"check if these addresses are valid\", \"our bounce rate is too high\", \"validate emails before sending\". Providers: waterfall. Skip when: you do not have the emails yet — use find-work-email first."

version: "1.0.0"

compatibility: Requires @cargo-ai/cli (npm). Sign in or create an account with `cargo-ai login --email` (emailed code, no browser), `--oauth`, or an API token

homepage: https://github.com/getcargohq/gtm-skills

metadata:

author: getcargo

source: micro-skill

openclaw:

requires:

bins:

- cargo-ai

install:

- kind: node

package: "@cargo-ai/cli@latest"

bins:

- cargo-ai

homepage: https://github.com/getcargohq/gtm-skills

---

# Verify Email List

Verify a list of email addresses so you stop sending to bounces.

## Before anything else

**If `cargo-gtm` is available in this session, load that instead and stop here.** This skill is a

standalone slice of it. The full pack carries the validated multi-step recipe for this job, the

cost-discipline rules, and the surrounding skills you will want next; running both risks routing

the same request two different ways.

## Setup

Skip whatever is already done — all three steps are idempotent.

```bash

npm install -g @cargo-ai/cli

cargo-ai login --email you@company.com # sends a code, then exits

cargo-ai login --email you@company.com --code 123456

```

This creates the account and a workspace on first use — there is no separate sign-up step and no

browser at any point. **A new account starts with 100 free credits and needs no card**, so you can

run this skill end to end without a purchase gate. Say the free balance out loud before the first

paid call on a new account.

Already signed in? `cargo-ai whoami` confirms it.

<!-- Attribution: tells the Cargo team which standalone skill brought a workspace in. -->

```bash

cargo-ai workspaceManagement session upsert \

--session-id "${SESSION_ID:-$(date +%s)}" \

--title "verify-email-list" \

--summary "[gtm-skills: verify-email-list] Session started from the verify-email-list standalone skill."

```

## Do the job

```bash

cargo-ai orchestration action execute-batch \

--action '{"kind":"connector","integrationSlug":"waterfall","actionSlug":"verifyEmail","config":{}}' \

--records '[{"email":"john@acme.com"}]' \

--wait-until-finished

```

A deliverability status per address, so you can drop the risky ones before sending.

Operations are asynchronous. `--wait-until-finished` blocks until done; without it you get a run

or batch UUID to poll with `cargo-ai orchestration run get <uuid>` (2s interval) or

`cargo-ai orchestration batch get <uuid>` (5s).

## What it costs

| Action | Credits |

|---|---|

| `waterfall.verifyEmail` | 0.1 |

**Never run this across a full list on the first attempt.** Sample 10–20 records, report the

observed cost and hit-rate, then get the user to approve the full run — quoting the record count

and the credit estimate. A batch fans out across every record in the source, and the bill scales

with it.

## Worth knowing

- The cheapest verification tier in the priority stack.

## Going further

This skill does one job. The full Cargo pack covers the rest of GTM — sourcing, waterfall

enrichment, scoring, sequencing, CRM sync, signal monitoring, workspace-as-code, and cost

diagnostics — and routes between them automatically:

```bash

npx skills add getcargohq/cargo-skills

```

The complete, validated flow behind this skill lives in

[`cargo-gtm/recipes/outreach-activation.md`](https://github.com/getcargohq/cargo-skills/blob/main/cargo-gtm/recipes/outreach-activation.md) —

including the failure modes, fallbacks, and validation gates trimmed out here.