# GCCL Naming and Compatibility

Status: HOLD / workbench projection  
Authority: internal naming spine; promotion requires receipts

## Canonical expansion

**GCCL** = **Geometric, Cognitive, and Compression Law**.

GCCL is the top-level law stack for geometry-first representation, cognitive/load-aware routing, and compression/regeneration under receipt-gated invariants.

## Compatibility split

```text
GCCL   = Geometric, Cognitive, and Compression Law
GCLang = Genetic Coding Language / executable notation layer
GCL    = legacy shorthand; do not use as the top-level expansion going forward
```

## Hierarchy

```text
GCCL
├─ Geometric Law
│  ├─ NUVMAP
│  ├─ DIAT
│  ├─ AVMR
│  └─ AMMR
├─ Cognitive Law
│  ├─ Bind
│  ├─ FAMM
│  ├─ Mass Number
│  └─ Semantic Mass
├─ Compression Law
│  ├─ Delta-GCCL
│  ├─ MetaProbe
│  └─ lawfulLoss
└─ Execution Profiles
   ├─ GCLang
   ├─ MN-GCCL
   ├─ Kernel-GCCL
   └─ Photonic-GCCL
```

## Preferred file naming

Forward-facing files should use `gccl` for the law stack and `.gclang` for executable modules:

```text
gcl-nanokernel.gcl              -> gccl-nanokernel.gclang
gcl-kernel-module-registry.gcl  -> gccl-kernel-module-registry.gclang
delta-kernel-compression.gcl    -> delta-gccl-kernel-compression.gclang
```

Do not delete legacy names until compatibility aliases are wired.

## Definition

**GCCL — Geometric, Cognitive, and Compression Law**: a receipt-gated law stack for transforming information across geometry, cognition, and compression while tracking invariants, transition cost, and lawful loss.

## Guardrails

- GCCL is not a proof by itself.
- GCLang programs are executable projections of GCCL, not automatic validation.
- Genetic-code language remains an implementation profile, not the top-level acronym.
- Promotion requires receipts: theorem, benchmark, trace, audit, or metaprobe gate.