# aura design ledger — INDEX

The ledger records the load-bearing design contracts and their rationale. Each
entry is one contract: what it guarantees, what it forbids, and why.

This is the place where the architecture settled during the initial rough-sketch
interview will be written up as discrete contracts. Until those entries land, the
authoritative summary of the invariants is the **Domain invariants** section of
`CLAUDE.md`, and the cross-session rationale notes live in the project memory.

## Contracts

_(none yet — to be authored from the first spec onward)_

## Open architectural threads not yet resolved

- Visual playground form (leaning egui-native; deferred — the headless core
  makes deferring it free).
- Smarter parameter-space search strategies (Bayesian/genetic) as pluggable
  policies atop the atomic sim unit.
- Top-level `strategies/` split from reusable building blocks in `nodes/`.