# ADR-006: Enumeration pattern — `as const` objects, not TypeScript enums

## Status

Accepted

## Context

TypeScript `enum` causes JSR slow-type issues and doesn't integrate well with TypeBox schemas. Enumeration values need to be available both as runtime constants and as TypeBox union literals.

## Decision

All enumerations use the `as const` object pattern (e.g., `GRAPH_STATUS = { Active: "active", ... } as const`). TypeBox schemas use `Type.Union` of `Type.Literal` values derived from the const object.

## Consequences

- No JSR slow-type warnings
- Enum values available as both runtime constants and type system literals
- Consistent pattern across the codebase
- Matches the pattern used in `common.ts` for `ACTOR_TYPE`

## References

- [sqlite-host.md](../sqlite-host.md)