# Codebase Design

> | Canonical deep-module vocabulary (module, interface, depth, seam, adapter, leverage, locality) for designing a module's shape — a lot of behaviour behind a small interface at a clean seam, testable through that interface. The single source of truth for these terms; other skills (architecture, codebase-hygiene, building, planning) point here instead of restating them. Use when designing or improving a module's interface, finding deepening opportunities, deciding where a seam goes, or making code more testable.

## Facts
- Page: https://tashan.sh/capability/skill-romiluz13-codebase-design
- tashan id: skill:romiluz13/codebase-design
- Source: https://github.com/romiluz13/cc10x
- Type: skill
- Category: devtools
- tashan score: 51.0 / 100
- Adoption: 17.0
- Upkeep: 96.0
- Freshness: 91.0
- Evidence coverage: 84% of the inputs this score can use
- Health: active
- Instruction depth: not yet graded
- License: MIT
- Official: no

## Install

```sh
cp -r codebase-design ~/.claude/skills/
```

## Security audit
Not scanned. We audit npm-published capabilities; this one has no npm package we can resolve, or has not reached the queue. This is not a clean bill of health.

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Measured 2026-08-16 by tashan (https://tashan.sh) from public evidence. Scorer s5.