Cold Email Reply Agent with Codex

Codex is quick on well-scoped tasks, and each reply here is about as scoped as it gets: read a thread, classify it in one word, then either send four sentences, mark a lead, or say nothing. Speed genuinely matters, because a yes at 22:00 answered at 22:03 is worth more than the same answer on Thursday. Most runs finish in seconds.
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Free to start · guided setup · switch agents any time.

Live demo

Watch it work before it's live

Run a staged conversation — no account needed. The agent handles it for real while a simulated world answers its tool calls; nothing touches real accounts, and nothing is actually sent.

Re: cutting the returns backlog at Nordveld

Anneke de Vriesa.devries@nordveld.nl

This landed at a decent time, we are looking at exactly this problem for our Rotterdam warehouse. We handle around 400 returns a day and most of the work is still manual. What does it cost for one site, and could you do a call Thursday or Friday afternoon? I would want our operations manager on it as well.

What you'll need

Set up in minutes

Using this template drops you into a guided setup. It asks exactly this, nothing else:

  1. Connect Instantly

    One sign-in. The agent acts through your account, scoped to what this template uses.

  2. Connect Slack

    One sign-in. The agent acts through your account, scoped to what this template uses.

  3. Offer context

    What you are selling and to whom - the pitch behind the campaign, the pricing you are happy to put in writing, what the product does and does not do, and the proof points a reply may use. The agent answers from this and nothing else.

  4. Reply policy

    How you want replies handled - the one next step you offer an interested lead, which questions the agent may answer alone, how an unsubscribe should be marked in Instantly, and the tone you want it written in.

  5. Runs on Codex

    Preselected for this page — connect your Codex account during setup, or switch to NoClick's built-in models with one click.

  6. Watch it handle a test run

    A staged conversation against a simulated world — then it’s live.

A considered pairing

Why Codex for this agent

Minutes decide the outcome

Interest fades fast on cold outbound. A fast harness on a per-reply trigger is the entire mechanism behind that.

Classify then act

Interested, question, not now, unsubscribe or negative, with the deciding sentence named. One decision, then a narrow action.

Good to know

Before you fork

What stops it answering a pricing question it should not?

The offer context variable defines what it may put in writing, and anything outside it, contracts, security reviews, integrations or timelines, has to be left alone and posted to Slack instead. Complicated Question stages all three at once, including a challenge to a percentage in your own email. Correct behaviour there is to send nothing and hand it over.

Other editions

Run it with a different agent

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Make it yours

Put Cold Email Reply Agent to work on Codex.

Free to start. Guided setup, a staged test run, and a workflow you can change at every step.