arch

Decompose projects into subsystems with contracts, constraints, and a living spec.

6|2|Updated Jan 30, 2026
One-click install
npx skills add https://github.com/skillsets-cc/main --skill arch-skillsets-cc
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: arch
Source: https://github.com/skillsets-cc/main/tree/main/skillsets/%40supercollectible/Valence/content/.claude/skills/arch
Command: npx skills add https://github.com/skillsets-cc/main --skill arch-skillsets-cc

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Global architecture typically suffers from ambiguity and late-stage changes. This Skill defines architecture at the contract boundary by decomposing a project into subsystems with contracts, constraints, and a build order, producing a living spec that tracks state as the project evolves.

Core Features & Use Cases

  • Subsystem decomposition with explicit contracts and constraints to enforce clear boundaries.
  • Living architecture spec that evolves with the project and milestones.
  • Build order planning and dependency tracking to coordinate team work.
  • Works with greenfield briefs or after /arm to establish a concrete architectural plan.

Quick Start

Provide a project brief or SEC-ticket path to generate the initial architecture spec.

Frequently Asked Questions about arch

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How does contract-driven architecture prevent late-stage changes in a project?▼

Contract-driven architecture prevents late-stage changes by decomposing a project into subsystems with explicit constraints and boundaries, producing a living spec that tracks state as the project evolves.

What is the best way to plan build order and dependencies across multiple teams?▼

The best way to plan build order is by defining subsystems with explicit contracts and constraints, which coordinates team work through a manifest-driven build workflow and phase tracking.

How do I generate an initial architecture spec for a greenfield initiative?▼

To generate an initial architecture spec for a greenfield initiative, provide a project brief or SEC-ticket path to establish a concrete architectural plan with subsystem boundaries.

Does this architecture blueprint work after an /arm brief or only for new projects?▼

This architecture blueprint works for both greenfield initiatives and after an /arm brief, establishing a concrete architectural plan with contract boundaries, build order, and phase-tracking.

When do I need to define architecture at the contract boundary?▼

You need to define architecture at the contract boundary when global architecture suffers from ambiguity, requiring subsystem decomposition with explicit contracts and constraints to enforce clear boundaries.