About
The spec-builder skill transforms vague project ideas into detailed specifications through guided discovery. It helps developers define requirements and create actionable specs before using autonomous coding tools. Use it when you need to clarify project scope or prepare for autonomous-master execution.
Quick Install
Claude Code
Recommendednpx skills add adaptationio/Skrillz -a claude-code/plugin add https://github.com/adaptationio/Skrillzgit clone https://github.com/adaptationio/Skrillz.git ~/.claude/skills/spec-builderCopy and paste this command in Claude Code to install this skill
GitHub Repository
Frequently asked questions
What is the spec-builder skill?
spec-builder is a Claude Skill by adaptationio. Skills package instructions and resources that Claude loads on demand, so Claude can perform spec-builder-related tasks without extra prompting.
How do I install spec-builder?
Use the install commands on this page: add spec-builder to Claude Code as a plugin, or clone its repository into your skills directory, then restart Claude so it picks up the skill.
What category does spec-builder belong to?
spec-builder is in the autonomous-coding category, tagged design.
Is spec-builder free to use?
Yes. spec-builder is listed on AIMCP and free to install. It runs inside Claude, so no separate service account is required to use the skill itself.
Related Skills
This skill manages the complete lifecycle of autonomous coding sessions, handling session creation, resumption, and type detection (initial vs. continuation). It provides tools for auto-continuation between sessions and includes a session manager for running prompts with Claude models. Use it when starting new coding projects, resuming previous work, or managing seamless transitions between autonomous coding sessions.
The spec-builder skill transforms vague project ideas into detailed specifications through guided discovery. It helps developers define requirements and create actionable specs before using autonomous coding tools. Use it when you need to clarify project scope or prepare for autonomous-master execution.
This skill implements a Test-Driven Development workflow for autonomous coding, enabling developers to follow red-green-refactor cycles. It provides methods for writing tests first, implementing code to pass tests, and refactoring while maintaining test coverage. Use it when implementing features with TDD or ensuring comprehensive test-driven development practices.
The Context Compactor skill automatically summarizes and reduces context when approaching token limits in long-running sessions. It preserves critical information like architectural decisions and current state while discarding stale or redundant content. Developers can use it to manage token budgets and maintain session continuity.