Policy DSL Documentation

A natural-language policy platform — write rules in plain English and evaluate them against JSON data in real time.

What is Policy DSL?

Policy DSL lets you express business rules in near-English sentences:

A **Person** gets approved
if the __age__ of the **Person** is greater than 18
and the __status__ of the **Person** is equal to "active".

The platform evaluates this rule against JSON data and returns a pass/fail result with a full evaluation trace.

Human-Readable

Rules read like natural language. Non-technical stakeholders can review and understand policies.

Machine-Executable

POST a rule and data to the Execution API and get an instant pass/fail result with trace.

Rich Operators

Comparison, date/time, list, validation, and pattern matching operators built in.

Composable

Build complex policies from smaller rules using labels and cross-references.

The policy system has three main user-facing parts:

General API — stores policies and flows, and manages drafts, versions, ownership, groups, audit, and tenant-scoped access control
Execution API — evaluates ad hoc rules and stored policies or flows against JSON data
Dashboard — UI for creating, editing, testing, publishing, reviewing, and administering policies and flows

This documentation covers the DSL language, all operators, and the platform APIs.

If you are evaluating the enterprise deployment model, read Enterprise Isolation.

Official SDKs are now available for the main integration targets:

Language	Package	Install
Go	`go-sdk`	`go get github.com/policies2/go-sdk`
Python	`policies2`	`pip install policies2`
TypeScript	`@policies2/sdk`	`npm install @policies2/sdk`
Rust	`policies`	`cargo add policies`

See the SDKs page for the full list and positioning.