Output.ai

Output.ai is an open source TypeScript framework for building AI features and workflows, built to be driven by a coding agent such as Claude Code. It bundles prompts, evaluations, tracing, cost tracking, security and durable execution into one project structure instead of a set of separate SaaS subscriptions. A new project starts with an npx command from the @outputai/cli package. It is aimed at engineering teams shipping AI features who want conventions that a coding agent can follow. Everything lives in the repository. Each workflow has its steps, evaluators and types, prompts are stored as versioned prompt files that can be reviewed in pull requests, and evals and datasets sit beside the code. Because traces and configs are also files, Claude Code can read the full context, scaffold a workflow from a plain description, then be asked to parallelize it, swap models to cut cost, or build a rubric and run an offline eval. Run output prints a cost report by model and by external API call. The vendor says the framework came from building AI work at GrowthX for companies such as Lovable, Superhuman, Webflow, Augment Code and Airbyte. It is licensed under Apache 2.0 and has documentation, a GitHub repository and a community. No pricing is published, and the framework itself is free to use.