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KastProductions

An agent that works the way your company works.

A generic agent knows your tools. It has never been told how your company works, so nobody can hold it to your definition of right. We build one standing agent for one company, deploy it into that company’s own accounts, and keep it right after it is live.

Spec and fixed price
Within one working day
Ready-made agent live
In five working days
Who owns it
Your accounts, your keys, your code
@atlasExample
Channel
#paymentswhere the finance team already works
Authority
Acts behind an approval gate
Runs in
Your own Cloudflare account
  1. Nadia

    @atlas summarise last night’s failed payments and draft the follow-up to each customer

  2. @atlas

    Nine payments failed after 21:00, four of them over €500. Nine drafts are ready in your outbox.

Waiting on a named person

Sending reaches your customers, so it needs a name on it.

Work we take off your team

Five jobs, with the systems each one touches. None is a product on a shelf: we build the agent for the company that asks. Your work does not have to be on this list.

Describe a job that is not here
  • Brief to published post

    A brief goes in, a drafted and edited page comes back, and publishing waits for a name.

    Notion, your CMSHow a brief becomes a page
  • Draft and schedule

    Your team asks in a channel. The agent drafts, queues and reports what the last batch did.

    Slack, TypefullyHow a post gets drafted and queued
  • Support triage

    Every new ticket gets read, grouped and answered where the answer is known, and filed as an issue where it is a bug.

    Zendesk or Intercom, GitHubHow the triage works
  • Failed-payment follow-up

    Overnight failures come back as a summary and a drafted message per customer. Sending needs a signature.

    Stripe, your outboxHow the follow-up works
  • Store operations

    Stock, pricing and order exceptions watched on a schedule, with the ones that need a decision brought to a person.

    ShopifyHow the store is watched

What we shape your agent around

We take each of the five points below from your company. We write them down before we build, and your agent follows what we wrote.

  1. Who asks

    Which people can start your agent, from which channel, and what they may ask it for.

  2. Who approves

    Which actions stop and wait, and whose name goes on the approval when they do.

  3. The systems it touches

    The tools your team already runs. Your agent uses the permissions of the person who asked. There is no shared key.

  4. Your words

    The names your company uses for things. We take them from your issues, your docs and your tickets. The answers then read like your team wrote them.

  5. What finished means

    Your definition of a finished piece of work. We write it down, so you can hold your agent to it.

How we keep it right

The five points above are a promise. These five are how we prove it, every month, for as long as we operate your agent.

What an eval suite is
  • The eval suite

    The written definition of correct for your agent. It runs on every change we make, and a failing suite stops the change. When we cannot describe correct for a task, we say so before we build it.

  • Approval gates

    We approve changes inside your agent’s own repository and deployment. Every outward action waits for a named person at your company. That means anything reaching a customer, an inbox, a published page or a payment.

  • A named engineer

    One of our engineers owns your agent and answers inside business hours. Your agent runs in your own cloud account, so its uptime is your platform’s. We do not promise uptime for software we do not run.

  • The spend cap

    Every session has a spend cap that we agree with you. A session that reaches the cap and has someone to ask stops and asks. A session running unattended stops and reports.

  • The monthly report

    What your agent did, what it cost, what we changed, and what we would do next. Cancel at the end of any month. Our work stops and your agent keeps running.

  • What your agent is built on

    We build on Flue, the open agent harness the Astro organisation publishes. Your agent deploys into your own Cloudflare account, or onto Node.js where your platform needs it there instead. We resell nothing: the account, the keys and the code are yours.

Where your agent lives

A person addresses your agent by name in a chat channel. A system wakes it with an event. Both lists are what Flue verifies, so you can check them.

A person reaches it in

  • Slack
  • Microsoft Teams
  • Discord
  • Telegram
  • WhatsApp
  • Google Chat
  • SMS through Twilio

How an agent works in Slack

Teams needs one step that Slack does not: an Azure Bot registration and an app password stored in your project. We do that work and quote it as its own line.

An event wakes it from

  • GitHub
  • Linear
  • Notion
  • Stripe
  • Shopify
  • Zendesk
  • Intercom
  • Resend
  • Salesforce Marketing Cloud

Who puts their name on it

Karolis Stulgys founded the company in Vilnius. He owns the agents we build and signs the merges we make on a client’s repository.

The founder and six references

“Karolis is the consummate professional. Highly personable, excellent communication skills, dedicated and technically astute. Along with all that he is a nice guy.”

Cathal McAliskey, Lead IT Consultant, GemPoolCathal McAliskeyLead IT Consultant, GemPool

Written about his earlier work, before this offer existed. There is no case study for an agent we have built yet, and we would rather print nothing than invent one.

What AI agent development costs

A build price is a floor, because the work follows the number of systems your agent touches. Every monthly price buys the evals, the changes and the report.

Self-run

We build your agent, deploy it into your own accounts and hand over the keys. Your team runs it and your engineers sign the merges.

From €7,500 to build, then from €1,500 a month
  • Live in your own channel in five working days
  • Your accounts, your keys, your code from the first commit
  • The eval suite, the approval policy and the spend cap, written for you

Managed

We build it and we run it. Our coding agents take the runs, our reviewer reads every diff, and the agent still lives in your accounts.

From €7,500 to build, then from €4,000 a month
  • As many briefs as the capacity allows, prioritised with you weekly
  • A named engineer signs every merge
  • Cancel at the end of any month, and your agent keeps running

Custom agent

For work that matches nothing we have built. You describe it, we write the spec and name the price, and the agent is shaped around your workflow.

From €10,000 to build, then from €1,500 a month
  • A spec and a fixed price within one working day
  • The same terms: your accounts, your keys, your code
  • The same mechanism: evals, approval gates, a named engineer

Sprint

One brief, two weeks, one fixed price. Our own agents work it on your repository, and our reviewer signs the merge. Nothing is deployed and nothing is connected, so this buys one piece of finished work rather than an agent.

From €4,000 per brief
  • A fixed price before the two weeks start
  • Plan, build, review and ship, with the run recorded
  • 30-day fix window on anything we merged

Questions we get on the first call

The answers as we give them. Anything not here, ask on the call or in the brief.

Send us the issue you would hand to a new senior engineer

Or describe the work you want an agent to take over. We reply within one working day with a short spec and a fixed price.

Write tohello@kastproductions.com
What comes backA spec that names every account the agent needs, and one price.
ThenA ready-made agent answers in your own channel in five working days.