tachyon-beep

Contract Engineering — Design skill for Claude Code

Design community

Typed cross-boundary contract discipline - schema design where illegal states are unrepresentable, versioning that fails closed, deterministic resolution, structural blinding, canonical identity, and.

How to install Contract Engineering

Installs to ~/.claude/commands/tachyon-beep-skillpacks-contract-engineering.md

Terminal

mkdir -p ~/.claude/commands && curl -fsSL https://raw.githubusercontent.com/tachyon-beep/skillpacks/HEAD/.claude/commands/contract-engineering.md -o ~/.claude/commands/tachyon-beep-skillpacks-contract-engineering.md

Restart Claude Code, or start a new session, for it to be picked up.

What Contract Engineering does

description: Typed cross-boundary contract discipline - schema design where illegal states are unrepresentable, versioning that fails closed, deterministic resolution, structural blinding, canonical identity, and contract testing

Contract Engineering Routing

**Contract-layer pack: the records that cross subsystem boundaries and the discipline that keeps them honest. For whole-system replay use `/determinism-and-replay`; for REST/GraphQL surface design use `/web-backend`.**

Use the `

Alternatives in Design

Site — Crawl a whole site and synthesize ONE canonical design system across all pages — unified tokens, coverage map 3.6k ★
Platform Design Skills — 300+ design rules from Apple HIG, Material Design 3, and WCAG 2.2 for cross-platform apps 261 ★
Apple Design Skill — Cross-platform UI/UX design reviewer based on Apple HIG 202 ★