OpenSpec

OpenSpec

Fission AI
+
+

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About

Claw Code is an open-source AI coding agent framework designed to replicate and expand upon modern AI-assisted development architectures. Built using a combination of Python and Rust, it delivers a modular and high-performance system for coding automation. The framework features a plugin-based tool system, allowing developers to execute tasks like file operations, shell commands, and web interactions with permission controls. Its core query engine manages LLM interactions, enabling intelligent code generation, analysis, and multi-step task execution. Claw Code supports multi-agent orchestration, allowing complex tasks to be broken down into parallel workflows. It is provider-agnostic, meaning it can integrate with multiple AI models rather than being limited to a single ecosystem. Overall, Claw Code offers developers a flexible, transparent, and customizable foundation for building advanced AI coding agents.

About

OpenSpec is an open-source spec-driven development framework designed to bring structure and clarity to AI-assisted coding workflows. It introduces a lightweight specification layer that helps teams define requirements before writing code. The platform organizes each change into structured artifacts such as proposals, specifications, designs, and task lists. It integrates with over 20 AI coding tools, allowing developers to use their preferred assistants while maintaining consistency. OpenSpec emphasizes an iterative and flexible approach rather than rigid development phases. Its command-based workflow enables users to propose, implement, and archive features efficiently. Overall, OpenSpec helps developers align with AI systems, reduce ambiguity, and produce more predictable and reliable outcomes.

Platforms Supported

Windows Supported
Mac Supported
Linux Supported
Cloud Not Supported
On-Premises Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Platforms Supported

Windows Supported
Mac Supported
Linux Supported
Cloud Not Supported
On-Premises Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Audience

Developers, AI engineers, and technical teams seeking an open-source framework to build customizable and scalable AI-powered coding agents

Audience

Developers, product teams, and organizations using AI coding assistants who want a structured, spec-driven approach to improve clarity, collaboration, and development outcomes

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Not Supported

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Not Supported

API

Offers API Not Supported

API

Offers API Not Supported

Screenshots and Videos

Screenshots and Videos

Pricing

Free
Open source
Free Version Supported
Free Trial Not Supported

Pricing

Free
Open source
Free Version Supported
Free Trial Not Supported

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Training

Documentation Supported
Webinars Not Supported
Live Online Not Supported
In Person Not Supported

Training

Documentation Supported
Webinars Not Supported
Live Online Not Supported
In Person Not Supported

Company Information

Claw Code
Founded: 2026
claw-code.codes/

Company Information

Fission AI
openspec.dev/

Alternatives

Claude Code

Claude Code

Anthropic

Alternatives

Claude Code

Claude Code

Anthropic
GSD Pi

GSD Pi

Open GSD
OpenClaw

OpenClaw

Molty
Kiro

Kiro

Amazon Web Services
Zenflow

Zenflow

Zencoder
Intent

Intent

Augment Code

Categories

Categories

Agentic AI Supported
AI Coding Agents Supported

Integrations

Claude Supported
Claude Code Not Supported
Claude Opus 4.8 Supported
Claude Opus 5.5 Supported
Cline Not Supported
Crush Not Supported
Cursor Not Supported
GLM-5 Supported
GLM-5.3 Supported
GPT-5.4 Pro Supported
GPT-5.4 nano Supported
GPT-5.6 Luna Supported
GPT-5.6 Terra Supported
GPT-6 Luna Supported
Gemini 3.1 Flash-Lite Supported
OpenAI Bel Supported
Qwen Code Not Supported
Qwen3.5 Supported
Seed2.0 Lite Supported
Seed2.0 Mini Supported

Integrations

Claude Not Supported
Claude Code Supported
Claude Opus 4.8 Not Supported
Claude Opus 5.5 Not Supported
Cline Supported
Crush Supported
Cursor Supported
GLM-5 Not Supported
GLM-5.3 Not Supported
GPT-5.4 Pro Not Supported
GPT-5.4 nano Not Supported
GPT-5.6 Luna Not Supported
GPT-5.6 Terra Not Supported
GPT-6 Luna Not Supported
Gemini 3.1 Flash-Lite Not Supported
OpenAI Bel Not Supported
Qwen Code Supported
Qwen3.5 Not Supported
Seed2.0 Lite Not Supported
Seed2.0 Mini Not Supported
Claim Claw Code and update features and information
Claim Claw Code and update features and information
Claim OpenSpec and update features and information
Claim OpenSpec and update features and information