OpenSpec Plus Design

OpenSpec Plus Design is an AI Engineering skill for Claude Code, published by sudokar in openspec-plus.

174 stars9 forkson sudokar/openspec-plusAdded 2026/09/07+9% in starsRepository updated 2026/09/03

agentic-skillsaiai-assisted-developmentai-code-generationai-code-qualityclaude-codecode-qualitycodingcoding-agentdevingithub-copilotopencodeopenspecpi-agentsdlcskillsspec-driven-developmenttddtest-driven-developmentwindsurf

Install in seconds

Install OpenSpec Plus Design

Copy OpenSpec Plus Design into your Claude Code skills folder. Run the command in your terminal, or review the source on GitHub before installing.

terminal

npx degit https://github.com/sudokar/openspec-plus/tree/main/skills/openspec-plus-design ~/.claude/skills/openspec-plus-design

Requires Node.js. Downloads this skill only — not the rest of the repository — into your Claude Code skills folder.

Without Node.js

git clone https://github.com/sudokar/openspec-plus.git

Clones the whole repository, then copy the skill’s own directory into your skills folder yourself.

In this catalog

Source file: skills/openspec-plus-design/SKILL.md in sudokar/openspec-plus
Installs to: ~/.claude/skills/openspec-plus-design
Collection: One of 6 skills cataloged from this repository
Category: AI Engineering — 3475 skills

What OpenSpec Plus Design does

OpenSpec Plus Design guides the OpenSpec design phase by exploring alternatives, selecting an approach, and validating alignment before writing design.md. It is used when creating, updating, reviewing, or continuing an OpenSpec design document.

OpenSpec Plus Design is cataloged under AI Engineering on DirSkills. OpenSpec Plus Design comes from a repository tagged agentic-skills, ai, ai-assisted-development, ai-code-generation and ai-code-quality.

Documentation

README

Excerpt

OpenSpec Plus Design

Mission

Strengthen OpenSpec design with brainstorming patterns. Prevent premature architectural convergence — explore alternatives, compare tradeoffs, recommend, get user selection, build incrementally, validate vs proposal (and any existing spec) before writing design.md.

This skill is RIGID. Do NOT write any design file before all workflow phases complete through Phase 3 section approvals. After writing, reviewer subagent is MANDATORY — skipping review is a skill violation.

Red flags — STOP, you are about to violate this skill:

This is the opening of the README. Read the full README on GitHub.

Frequently asked about OpenSpec Plus Design

What else does sudokar publish alongside OpenSpec Plus Design?
OpenSpec Plus Design is one of 6 skills that DirSkills catalogs from sudokar/openspec-plus, the repository it ships in. Its siblings there include OpenSpec Plus Apply, OpenSpec Plus Proposal and OpenSpec Plus Spec. Each one is a separate skill with its own page in this directory, installs the same way OpenSpec Plus Design does, and is maintained by sudokar in that same repository. The rest of the collection is listed on the sudokar/openspec-plus page.
How does OpenSpec Plus Design compare to other AI Engineering skills?
OpenSpec Plus Design ranks #3232 by stars among the 3475 AI Engineering skills in this catalog. The most-starred ones next to it are Architecture Decision Records, AI-First Engineering and Agentic OS. DirSkills ranks by the star count of the repository each skill ships in, so that order reflects how popular those repositories are rather than any review of OpenSpec Plus Design against them. Open each page to compare what they document and how they install.