Guides
How to use TypeFuse.
Build a Decision, prove it with evidence, publish and deploy it, then call it from your application. Each guide covers one part of that path as the product works today.
Build
Write the Definition, with the assistant's help.
- Decisions and DefinitionsWhat a Decision is, and how a Definition describes its input, its context and the questions it answers.
- Per-item questionsAsk a question once for each item in a list, in the same call.
- The Definition assistantReview a Definition for problems, accept suggested fixes, and describe a change in your own words.
Validate
Prove it with Examples, Test sets and Evaluations.
- Examples, Test sets and the SandboxWorked Examples explain intent, Test sets are the evidence, and the Sandbox tries one input at a time.
- Test runs and EvaluationsRun your Test sets against a draft or a version, read the evidence and compare two runs.
- Datasets and ComparisonsRun two releases over the same real inputs and see where their answers differ before you ship.
Ship
Release it, deploy it and call it from your application.
- Versions and releasesPublishing freezes a version with a semantic release, and callers choose the releases they accept.
- Deploying, environments and approvalsDeploy a release to an environment, ask for approval where it is required, and roll back.
- Calling a DecisionCall a deployed Decision over HTTP, from the SDK or from the CLI, with your own TypeSafe key or TypeFuse's.
Operate
Follow every call, and hear when something needs you.
Your account
Organisations, security, plans and agents.
- Organisations and moving DecisionsOrganisations own Decisions, members and credentials, and a Decision can move between them.
- Account security and two-factorPasskeys, an authenticator app and recovery codes, confirming it's you, and requiring two-factor.
- Plans and usageWhat each plan includes, where to see your usage and what happens at a limit.
- Connecting an agentLet Claude Code, Codex or claude.ai build, test and publish Decisions for you.
Reference
The API, and every guide in one file.