OpenSpec
Spec-driven framework for AI coding agents
San Francisco, CA, USA
Founded 2025
OpenSpec is a lightweight, open-source spec-driven development framework for AI coding assistants. It adds a spec layer to codebases through an openspec/ folder containing a spec library and a changes system, enabling developers to define requirements and technical designs before code is written, and providing durable context that persists across AI coding sessions.
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Last Updated: March 13, 2026
Current Valuation
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Funding Summary
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OSS News & Views
June 23, 2026
DEV Community: Eval-Driven Agent Development: How I Stopped Tuning Prompts on Vibes - DEV Community
Announcement
June 20, 2026
DEV Community: What is MonoSpecs: Why It's a Further Upgrade and Extension of OpenSpec - DEV Community
Media Mention
June 15, 2026
DEV Community: I tried to fork GSD, or: it's for vibe coders, not real devs - DEV Community
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Core OSS Projects
A lightweight spec-driven development framework for AI coding assistants that captures requirements, technical designs, and implementation tasks in markdown files alongside the codebase.
License: MIT
Business Information
Category
AI Coding AssistantIndustries
Software
Technologies
Developer ToolsSoftware DevelopmentAI Coding AgentsDocumentation
Sectors
Developers
Licenses
MIT
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