Hey Cursor friends! Just released something that might save your sanity
Ever been here?
- 5 prompts deep, AI still missing the mark
- Requirements scattered across chat history
- Hours lost in endless course-correction cycles
That’s why I built OpenSpec - an open-source CLI that plays beautifully with Cursor’s custom slash commands.
What OpenSpec Gives You
- Structure before code - You and AI agree on specs upfront
- Native Cursor integration -
/openspec-proposal,/openspec-apply,/openspec-archive - Everything in one place - No hunting through chat history for requirements
- 100% free - No API keys, no MCP connectors needed
- Universal - Works with any AI coding assistant
The Workflow That Actually Works
-
Draft a change proposal - Capture what you want to build
-
Review & align - Iterate until specs are solid
-
Implement tasks - AI writes code from clear requirements
-
Archive & update - Your specs become living docs
Why Not Just Use [Insert Other Tool]?
vs Kiro: OpenSpec keeps all related changes in one folder instead of scattering updates across multiple spec files. When you’re building a feature that touches 3 different specs, you want everything in one place, not hunting through multiple task files.
vs Chat-driven development: Your requirements stick around! They don’t disappear into chat history limbo.
vs Heavy project management tools: This is lightweight and lives right in your repo where your code lives.
Real Quick Example
# In Cursor, just type:
/openspec-proposal Add user authentication with 2FA
# AI creates the full structure:
# - proposal.md (what and why)
# - tasks.md (implementation checklist)
# - spec deltas (what changes in your system)
# Review, iterate, then:
/openspec-apply add-user-auth
# AI implements following the agreed specs
# When done:
/openspec-archive add-user-auth
Getting Started (Literally 2 Minutes)
npm install -g @fission-ai/openspec@latest
cd your-project
openspec init
# Select "Cursor" when prompted
That’s it. Your Cursor slash commands are ready to go.
Would love to hear your experience! (Github stars 
are always appreciated!)
Repo: GitHub - Fission-AI/OpenSpec: Spec-driven development for AI coding assistants.
Demo below ! Much love 
