JigSpec™Open-source AI pipelines as simple YAML

Build, record, and assemble fleets of AI workflows to automate the work you hate (or love) doing.

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Simple things are simple

A one-step pipeline is 5 lines of YAML. No boilerplate, no classes, no setup code.

Composable fleets

Pipelines are steps inside other pipelines. Build small automations, assemble them into large systems.

Provider-agnostic

Swap Claude for GPT for Llama without changing your pipeline. One spec, any model.

Built for frontier models

Designed for Claude Sonnet 4.5+ and OpenAI Codex. These models handle multi-step agent workflows reliably — results with less capable models are unknown.

Open source

Apache 2.0 licensed. Read the code, fork it, self-host it, build on it. No vendor lock-in, no surprises.