One rulebook.
Everything derived from it.
Your business rules live in one place. Effortless derives the database, the documentation, the spreadsheets and more from it, and keeps all of them in sync every time a rule changes. The core platform is free to use.
Watch one rule change, and seven files follow along →What You Get
Everything you need to
build on your rules.
All of it is free to use. Start with the skills and the CLI, and add the rest as your project grows.
Build with Claude
Effortless skills →
Open sourceTeach Claude Code how to work with rulebooks: design them, change them, and build from them.
Effortless CLI →
Open sourceOne command, effortless build, turns your rulebook into everything below.
MCP server
The same tools for Cursor, Windsurf and other AI assistants that speak MCP.
Derived from your rulebook
Excel workbooks
A live workbook with your rules as formulas, and import from Excel into a rulebook.
Plain-English rules
RuleSpeak® documentation your business people can read and sign off on.
Explainer DAG
Click any calculated value and see exactly how it was derived, step by step.
Run it
Rulebook editor
See and edit your rulebook in the browser. Every change rebuilds what depends on it.
Effortless Bases →
Hosted Postgres databases, ready for a rulebook in minutes.
Magic links →
Passwordless email login for any app built on Postgres.
Why It Matters
Confidence. Your system does exactly what your rules say, and keeps doing it as those rules change.
Determinism
The system does exactly what the rulebook says.
Change propagation
Change a rule once. Everything downstream follows.
Auditability
Every value can be traced back to the rule behind it.
Portability
No hidden logic, no lock-in. The rulebook is yours.
The proof
One example rulebook runs as 17 different targets, from Postgres and Python to Excel, COBOL and plain English, and every one gives the same answers. A conformance check proves it on every build. See it on GitHub →
What it covers
Effortless derives the core: your data and your business rules. Screens, integrations and anything unique to your product are still built on top, by you, by Claude, or by us.
Advanced Tools
More power when you need it.
Some tools go deeper than others. Our most advanced, the Postgres generator, derives a complete backend from your rulebook: schema, calculated fields, views and row-level security. Store credit from training applies to advanced tools.
Work With Us
Do it yourself,
or let us help.
We build it for you
We design and build your system on Effortless, or make an existing project effortless. If we maintain it for you, the commercial license is part of maintenance.
Training
Hands-on sessions for you or your team, from a 2-hour introduction to a full team onboarding.
Ongoing support
Maintenance with the license included, plus integrations, custom frontends, data migrations and feature expansions.