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OpenSpec

Active

Plan mode for complex features

Winter 2026Founded 2025
Generate ideas β†’
AI insightcan contain mistakes
Spec-Driven Development FrameworkOtherDevelopers and development teamsMedium competition
Moat
Open-source community; strong developer adoption (20K stars); lightweight spec philosophy.
Key risk
Open-source monetization is difficult; incumbents (Jira, Linear) could add spec-driven features.
Why now
AI agents need durable context; spec-driven development aligns with how coding agents work.
Competitors
Jira, Linear, GitHub Issues, traditional documentation tools
↻ Pivot / rename signal

This company has previously operated under β€œFISSION”, β€œOpenSpec”, β€œopenspec”. A rename frequently marks a pivot in positioning or product β€” useful raw material for variant ideas.

About

OpenSpec is an open-source, spec-driven framework. We help developers plan complex features by creating lightweight spec documents that serve as durable context for their coding agents. With 20k+ GitHub stars, we’re one of the leading spec-driven frameworks, used by thousands of developers and teams to plan and ship with the coding agent of their choice. Our philosophy is simple: keep planning lightweight and iterative, and match how software actually gets built, messy, evolving, and real, without dragging teams into rigid, bureaucratic workflows.

Founders Β· 1

Tabish Bidiwale
Tabish BidiwaleFounder

Building OpenSpec, the open-source spec-driven framework that makes AI coding reliable on complex work. 20k+ GitHub stars. Previously Team Lead at Q-CTRL. Joined as an early engineer and built the core platform and multiple products from seed to a $113M Series B. While at Q-CTRL, I saw coding agents recreate the same failure mode as human teams: misalignment. Existing tooling wasn’t built for that shift, which led me to building OpenSpec.

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