alloy-more

Model, review, and verify Alloy system designs with bounded model checking.

15|2|Updated Mar 3, 2026
One-click install
npx skills add https://github.com/adzerk/spec-driven-workshop --skill alloy-more
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: alloy-more
Source: https://github.com/adzerk/spec-driven-workshop/tree/main/skills/alloy-more
Command: npx skills add https://github.com/adzerk/spec-driven-workshop --skill alloy-more

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

This skill helps model, review, and validate formal specifications using Alloy to improve correctness and clarity across system designs.

Core Features & Use Cases

  • Structural modeling with signatures, fields, and relations
  • Behavioral modeling using mutable state and temporal aspects
  • Review and debugging of existing .als files and Alloy code blocks
  • Guided verification with Alloy Analyzer for bounded model checking

Quick Start

Draft a bounded Alloy model for your system and validate it with the Alloy Analyzer.

Frequently Asked Questions about alloy-more

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

FAQPage Schema
How do I validate an Alloy specification for structural and behavioral correctness?

To validate an Alloy specification, you draft a bounded model and run it through the Alloy Analyzer for bounded model checking, which verifies signatures, fields, mutable state, and predicates to ensure structural and behavioral correctness.

What is bounded model checking in Alloy 6 and when do I need it?

Bounded model checking in Alloy 6 is a formal verification process that explores traces within a finite scope to validate system designs, needed when creating new Alloy models or examining existing .als files for structural and behavioral correctness.

How do I model mutable state and temporal aspects in Alloy?

You model mutable state and temporal aspects in Alloy by defining signatures and fields, then applying Alloy 6 concepts to trace exploration and behavioral modeling, ensuring your predicates and assertions correctly capture evolving system states.

Can I review and debug existing .als files and Alloy code blocks?

Yes, you can review and debug existing .als files and Alloy code blocks by applying formal specification analysis to check predicates, assertions, and standard library module usage, identifying common pitfalls and verifying structural correctness.

Does this approach support standard library modules and Alloy 6 concepts?

Yes, this approach fully supports Alloy 6 concepts including signatures, fields, mutable state, predicates, and assertions, while providing specific guidance on standard library module usage and best practices for formal specifications.

What are common pitfalls when writing predicates and assertions in Alloy?

Common pitfalls when writing predicates and assertions in Alloy involve incorrect relation definitions and scope limitations during bounded model checking, which you address by following module usage guidance and best practices during model review.