Repository map

diaglam/
├── apps/docs/                 this developer documentation app
├── packages/engine/src/
│   ├── layout.ts              orchestration spine
│   ├── program/               input schemas and validation
│   ├── family/                plugin contract and registry
│   ├── families/              built-in family definitions
│   ├── contract/              injected capabilities
│   ├── measure/               content → extents
│   ├── place/                 extents → positions
│   ├── route/                 positions → connectors + labels
│   ├── materialize/           geometry + meaning → NGD elements
│   ├── fit/                   framing, title, legend, canvas
│   └── ngd/                   output types
├── packages/harness/src/
│   ├── render-svg.ts          faithful render orchestration
│   ├── render/                element serializers
│   └── metrics.ts             geometry quality gates
├── fixtures/                  661 semantic programs
├── baselines/                 reviewed SVG and PNG output
└── docs/                      governing spec and in-repo architecture tour

Import discipline

There are no index.ts source barrels. Internal imports name the file that owns the symbol. Each package has one intentionally named public-api.ts for consumers.

Avoid files named helpers.ts or utils.ts. Keep small operations beside the concept they support until a coherent phase can be named and tested on its own.