How it works

Cryogram is an app on your own computer. You describe a job in a chat, the Builder Agent works through it with you once and writes the steps into a workflow, and from then on you run the workflow with one click, with the routine steps running as plain code and only the steps that need judgement using AI. The sections below describe what to do at each point.

Build a workflow

Screenshot to come: Build a workflow

Describe what you want to automate, where the information comes from and what you want at the end. An example file or result helps.

Cryogram explores what is needed and asks you for anything missing. Use the controls in the chat to answer questions, choose folders or enter keys. Enter secrets in the secret field when asked.

Read the plan. Ask for changes in the chat, or choose Looks right - go ahead to approve it. The steps you approve are the steps that get built: if a step has to be added or dropped along the way, or become a different kind of step, you get a card listing the steps removed from the plan and the steps that will be added, and nothing more is built until you approve it. A step that only gets a new name asks nothing.

Cryogram then builds and checks the steps. Here's what I built tells you when it is ready to run.

Run a workflow

Screenshot to come: Run a workflow

Open the workflow and choose Run. Fill in any values it asks for. You may need to wait until building or editing has finished.

Keep Cryogram running and your computer awake. Closing the browser page does not quit Cryogram.

If a run needs your help, answer its question to continue. If you close the question, use the waiting banner to reopen it.

Open Run history to see the result or find out where a run stopped.

Change a workflow

Screenshot to come: Change a workflow

Describe the change in the workflow's chat. Say what should happen differently and give an example if you can.

Review Here's what will change. Ask for adjustments or approve the plan. Cryogram makes and checks the changes before you run it again.

Use Information to review the workflow's purpose, instructions and version history. You can restore an earlier version there; this does not erase your chat or run history.

Fix a stopped run

Screenshot to come: Fix a stopped run

Open the failed run or the Issues tab to see what went wrong.

Choose Investigate to ask the builder to look into it. Add any context you have, such as a changed file or an expired login. Review and approve any proposed changes.

When the issue is ready, choose Continue to resume the failed run. Start from beginning starts it again.

If Cryogram cannot tell whether an external action finished, check the destination before repeating it. For example, confirm whether an email arrived before sending it again.

Set values and share them

Screenshot to come: Set values and share them

Open Inputs to change a workflow's saved values. If you want to choose a value each time the workflow starts, ask for that in the workflow's chat, and Cryogram changes the workflow to ask for it at the start of each run.

An environment is a collection of values, such as a folder, login or access key. Attach the same environment to several workflows to share those values.

Edit shared values in Environments. Attached workflows use the new value on their next run.

If two attached environments supply the same name, In use shows the selected value. Choose Use beside another value to switch.

Use files and websites

Screenshot to come: Use files and websites

When adding a file, choose whether Cryogram keeps a copy or reads the file on your computer. Use a copy for a fixed reference; use the original path when the file will change.

Keep files and folders available where the workflow expects them. If you move something, update its path.

For a website that needs a login, sign in through the browser when asked. Browser sessions belong to individual workflows; attaching an environment does not share a browser login.

Connect your AI

Screenshot to come: Connect your AI

Open Admin > Builder Agent to choose the AI that builds and changes workflows. You can connect through your Claude or ChatGPT subscription, or use an API key.

AI steps inside workflows are configured separately under Admin > Workflow AI providers. Anthropic, OpenAI and Gemini are set up as cards; any other provider with an OpenAI-style API, such as Mistral, DeepSeek, xAI, OpenRouter or a local server, you add yourself with its endpoint address. Hosted providers need an API key and have their own usage charges. Local providers do not need an API key. Each provider's page has a Test button beside Save settings: it saves, then sends one real request to the cheapest model on the card in the same way a workflow step would, and tells you whether the provider answered. On a workflow's canvas, open an AI step to change its model, grouped by provider, its temperature and its token limit; a model that takes no temperature shows Not available there, and once a model has refused a temperature it is never sent one again.

Adding a builder subscription does not pay for AI steps in your workflows.

The model and the thinking effort

The Builder Agent tab offers a short list of models for the engine you chose, with one ticked; tick another, or add one, and it takes effect from your next message. With no model ticked, the Builder Agent runs the model the program itself would run.

Below the models sits Thinking effort, which is how long the AI thinks before each step. Medium is the default and is right for most builds; a lower level answers faster and spends fewer tokens, a higher one thinks longer before each decision, which can help on an unusually tangled task. A change applies from the next message.

Get help

Screenshot to come: Get help

For a problem with one workflow, start with its Run history and Issues.

For a problem with Cryogram itself, open Help & feedback. Describe what you were doing, what you expected and what happened instead.

If you choose to include an error report, review its contents before sending it. Sending a report is optional.