Ultimate
Ultimate: a full-stack framework whose primary developer is an AI agent
Rails' philosophy on Bun, Postgres and SolidJS. Everything is one of eight primitives, and a green gate means shippable.
What it does
Define once
One action declaration projects into an HTTP route, an OpenAPI operation, a typed client, a job handle, an MCP tool and a test, all on one policy.
Errors you can run
A failure carries a stable code, the concrete cause and a fix line that is a command to type, so an agent spends one round trip instead of a search.
Starts small
bunx create-ultimate gives you embedded Postgres, a seeded database and a working route with no Docker. Scaling out is configuration, not a rewrite.
Where it stands
Feature-complete. Its README claims no production deployments and no adoption numbers, because none exist yet, and neither do we.
AI-maintainedMITTypeScriptv29.4.0 · 2026-10-31
Read from github.com/developerz-ai/ultimate on 2026-11-02.
Open source
Want to help?
Bug fixes, bug reports and suggestions are welcome. Dependency, CI and release changes, big rewrites and unasked features are not. The page says why.
How outside contributions work
Ship more. Maintain less.
We expect software to be written faster than any team can review it. Bring your repos, your boxes and your keys. We bring the org that keeps up.