OpenSpec
YC W26Sydney, AU · Founded 2025 · 1 employees on LinkedIn · 1 known investors
OpenSpec is a lightweight, spec-driven framework for planning and organizing requirements in codebases, designed to work with AI coding agents like Claude Code, Cursor, and GitHub Copilot. It stores specifications alongside code to provide persistent context for development teams and enable reviewers to understand requirement changes without reading code.
Also known as FISSION
Founders & leadership· Y Combinator alumni (W26)
OpenSpec was founded in 2025 by Tabish Bidiwale.
TB
Tabish Bidiwalein𝕏FounderTabish Bidiwale was a team lead at Q-CTRL, where he joined as an early engineer and helped develop platform infrastructure and products through Series B funding. He founded OpenSpec, an open-source specification-driven framework designed to improve reliability in AI-assisted development.
Investors · 1
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Frequently asked questions
- What does OpenSpec do?
- OpenSpec is a lightweight, spec-driven framework for planning and organizing requirements in codebases, designed to work with AI coding agents like Claude Code, Cursor, and GitHub Copilot. It stores specifications alongside code to provide persistent context for development teams and enable reviewers to understand requirement changes without reading code.
- Who founded OpenSpec?
- OpenSpec was founded by Tabish Bidiwale in 2025.
- Who are OpenSpec's investors?
- OpenSpec's investors include Y Combinator.
- Where is OpenSpec headquartered?
- OpenSpec is headquartered in Sydney, AU.