# Openspec Propose (agent skill)

> Openspec Propose is an agent skill (a SKILL.md file) from Fission-AI/OpenSpec. Propose a new OpenSpec change with all artifacts generated in one step. It works with Claude Code, Codex, Cursor and GitHub Copilot and has 71,186 GitHub stars across a repository of 2 listed skills.

Propose a new OpenSpec change with all artifacts generated in one step. Use when the user wants to quickly describe what they want to build and get a complete proposal with design, specs, and tasks ready for implementation. Also use when the user says "openspec propose" or "opsx propose". Propose a new change - create the change and generate all artifacts in one step.

## Key facts

| Fact | Value |
|---|---|
| Repository | https://github.com/Fission-AI/OpenSpec |
| Skill path | skills/openspec-propose/SKILL.md |
| Skill name | openspec-propose |
| GitHub stars | 71,186 |
| Installs on skills.sh | not listed |
| License | MIT |
| Skills in repo | 2 |
| Plugin marketplace | no |
| Official | no |
| Works with | Claude Code, Codex, Cursor, GitHub Copilot |
| Category | Design & frontend |
| Last commit | Oct 6, 2026 |

## When it triggers

- Use when the user wants to quickly describe what they want to build and get a complete proposal with design, specs, and tasks ready for implementation.
- use when the user says "openspec propose" or "opsx propose".
- "openspec propose"
- "opsx propose"

## Add this skill

### Claude Code

```sh
git clone --depth 1 https://github.com/Fission-AI/OpenSpec.git
cp -r OpenSpec/skills/openspec-propose ~/.claude/skills/openspec-propose   # personal, or .claude/skills in a project
```

In the Claude apps, zip the skill folder and upload it under Customize > Skills > + > Upload a skill (code execution must be on).

### ChatGPT / Codex

```sh
git clone --depth 1 https://github.com/Fission-AI/OpenSpec.git
cp -r OpenSpec/skills/openspec-propose .agents/skills/openspec-propose   # repo; ~/.agents/skills for all projects
```

### Cursor

```sh
git clone --depth 1 https://github.com/Fission-AI/OpenSpec.git
cp -r OpenSpec/skills/openspec-propose .cursor/skills/openspec-propose   # project; ~/.cursor/skills for all projects
```

Sources (checked 2026-10-07): https://code.claude.com/docs/en/skills, https://support.claude.com/en/articles/12512180-using-skills-in-claude, https://learn.chatgpt.com/docs/build-skills, https://cursor.com/docs/context/skills

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Canonical page: https://appsgit.com/skills/fission-ai-openspec-propose
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