Source: https://seerepo.com/compare/farion1231/cc-switch/vs/Fission-AI/OpenSpec
Markdown source: https://seerepo.com/compare/farion1231/cc-switch/vs/Fission-AI/OpenSpec.md
Description: cc-switch and OpenSpec share 3 technologies: Tailwind CSS, yaml, and Zod. cc-switch is written in Rust and OpenSpec in TypeScript.

# cc-switch vs OpenSpec

cc-switch and OpenSpec share 3 technologies: Tailwind CSS, yaml, and Zod. cc-switch is written in Rust and OpenSpec in TypeScript.

- [farion1231/cc-switch](https://seerepo.com/r/farion1231/cc-switch): A cross-platform desktop All-in-One assistant for Claude Code, Codex, OpenCode,DeepSeek Harness and more. Only official website: ccswitch.io
- [Fission-AI/OpenSpec](https://seerepo.com/r/Fission-AI/OpenSpec): Spec-driven development (SDD) for AI coding assistants.

## What they share and what sets them apart

- In common: Tailwind CSS, yaml, Zod
- Only in cc-switch: Vite, React, Tauri, axum, objc2-app-kit, objc2-foundation, rusqlite, SQLite, Tokio, @tauri-apps/api, class-variance-authority, @codemirror/theme-one-dark, tailwind-merge, Radix UI, React Hook Form, dnd-kit, Framer, tauri-plugin-dialog, @tanstack/react-virtual, CodeMirror, recharts, sonner, cmdk, tauri-plugin-window-state, Lucide, rmcp, zip, @hookform/resolvers, log, tauri-apps, tauri-plugin-log
- Only in OpenSpec: Inquirer, ora

## Side by side

| | cc-switch | OpenSpec |
|---|---|---|
| Size | 564,219 lines written, 821 code files | 144,693 lines written, 218 code files |
| Who writes it | 1.7% of its commits signed by AI. With Claude Code, GitHub Copilot, and Cursor | 28.9% of its commits signed by AI. With Claude Code, Codex, CodeRabbit, Cursor, Mistral Vibe, GitHub Copilot, Qwen Code, and Crush |
| Activity | Last push November 4, 2026, 3,432 commits, 151,729 stars | Last push November 4, 2026, 967 commits, 73,952 stars |
| Tests | 319 test files. 37.3% of its code files have a test that imports them | 245 test files. 74.3% of its code files have a test that imports them |

- Size: Lines written by people and agents, without generated ones; code files, without tests.
- Who writes it: A commit counts as AI's when it carries its signature: a Co-Authored-By line, its author name or the merge of its branch.
- Activity: From GitHub and its history, on the day SeeRepo read it.
- Tests: The files that test the code, and the share of code files a test imports.

## Frequently asked questions

### Which is bigger, cc-switch or OpenSpec?

cc-switch, with 564,219 lines written; OpenSpec has 144,693.

The proof: [farion1231/cc-switch's code at commit e217bfc](https://github.com/farion1231/cc-switch/tree/e217bfcbbbbbf82f4619ab62f08fb002635b7858)

### Which has more GitHub stars, cc-switch or OpenSpec?

cc-switch, with 151,729 stars; OpenSpec has 73,952.

The proof: [farion1231/cc-switch on GitHub](https://github.com/farion1231/cc-switch)

### Which has more tests, cc-switch or OpenSpec?

cc-switch, with 319 test files; OpenSpec has 245.

The proof: [farion1231/cc-switch's code at commit e217bfc](https://github.com/farion1231/cc-switch/tree/e217bfcbbbbbf82f4619ab62f08fb002635b7858)

### Which was updated more recently, cc-switch or OpenSpec?

Both got their last push on November 4, 2026.

The proof: [Fission-AI/OpenSpec's commits on GitHub](https://github.com/Fission-AI/OpenSpec/commits)

### Which has more commits signed by AI, cc-switch or OpenSpec?

OpenSpec: an AI signed 28.9% of its commits, with Claude Code, Codex, CodeRabbit, Cursor, Mistral Vibe, GitHub Copilot, Qwen Code, and Crush; in cc-switch, 1.7%.

The proof: [the commits each tool signed in Fission-AI/OpenSpec](https://seerepo.com/r/Fission-AI/OpenSpec/ai)

## Sources

- farion1231/cc-switch: Read on November 4, 2026, at commit e217bfc (https://github.com/farion1231/cc-switch/tree/e217bfcbbbbbf82f4619ab62f08fb002635b7858)
- Fission-AI/OpenSpec: Read on November 5, 2026, at commit 3e4d5f0 (https://github.com/Fission-AI/OpenSpec/tree/3e4d5f0769e2857c8eb54f149cbf5e4f703fa04c)

## What is your repo built with?

Any public repo, with no account: https://seerepo.com/r/owner/repo/built, with the owner and name it has on GitHub.