---
name: likec4
description: Use when reading, creating, reviewing, or modifying LikeC4 *.c4 files. Enforces LikeC4 nomenclature, syntax, modeling conventions, and recommended practices.
---

# LikeC4 modeling

Before changing any `*.c4` file:

1. Read `references/llms.txt` to locate the relevant documentation.
2. Consult the applicable sections of `references/llms-full.txt`.
3. Inspect the existing project models and follow `docs/modeling-conventions.md`.
4. Use documented LikeC4 syntax rather than guessing.
5. Follow LikeC4-recommended modeling practices.
6. After editing, run `npm run validate` and resolve any errors caused by the change.

Pay particular attention to:

- element and relationship syntax
- specification and model boundaries
- views and predicates
- deployment models
- identifiers, titles, and naming conventions
- supported styling and metadata
- deprecated or discouraged syntax