Spec-driven development in Cursor.
Describe what you want; the agent turns it into requirements, design, and tasks, then you build.
curl -fsSL https://raw.githubusercontent.com/malchan-git/mcdev/main/scripts/install-mcdev.sh | MCDEV_REPO=malchan-git/mcdev bashWatch how mcdev transforms a blank slate into a working application
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Step 1: Start Fresh
Open an empty folder in Cursor
Ready to try it yourself?
Get StartedDevelopment without structure is like building without a blueprint. Here is what mcdev fixes.
No more specs that sit in a drawer. Every requirement translates directly to executable code.
Stop juggling between docs, tickets, and comments. Everything lives in one place.
The agent understands your intent and breaks it down into actionable steps.
Your project stays organized with intelligent context management.
This is that: just the great stuff.
Built for developers who want structure without the bureaucracy.
Describe your idea in plain English. The agent transforms it into structured specifications.
Stay in control. Review and approve each requirement, design decision, and task before implementation.
Intelligent context management that keeps your project organized and your AI on track.
Start fresh or bring mcdev to your current codebase. It adapts to your workflow.
One document to rule them all. Requirements, design, and tasks in one place.
Your project context stays synchronized across all AI interactions.
Your project stays in charge. Always.
Three pillars of spec-driven development that keep your project on track.
Transform vague ideas into precise requirements. The agent breaks down your vision into actionable specifications that guide every step of development.
No more drifting from the plan. Every line of code connects back to a documented requirement, keeping your build focused and intentional.
Iterate without the mess. New features and improvements integrate cleanly, maintaining project organization as you evolve.
Your project stays in charge
Your toolkit for spec-driven development.
/mcdev-0-how-to-useYour go-to reminder
Run this anytime to see what all the mcdev commands do.
/mcdev-1-setup-start-hereRun once on a folder
Empty project? The agent asks what tech you want (or picks for you) and creates steering files. Already have code? It can add steering and backfill specs for what you've built, then show you the rest. Highly recommended so the agent can work with you properly.
/mcdev-2-prompt-to-specNot sure how to phrase your idea?
Chat for a message or two; the agent shapes it into a clear prompt and offers to create the spec. Say yes and it runs mcdev-create-spec with that.
/mcdev-3-build [feature-name]Build from a spec
You give the name of a spec; the agent runs the tasks, runs tests, and tells you what was built and where.
/mcdev-4-prompt-to-improve-featureNot sure which feature or how to phrase the improvement?
The agent asks which feature, finds (or backfills) the spec, shapes your improvement into a prompt, then runs mcdev-improve-feature when you say yes.
/mcdev-create-spec [description]Create a new feature spec
You describe a feature; the agent writes requirements, then design, then a step-by-step task list. You approve after each part.
/mcdev-improve-feature [feature-name]Improve an existing feature
You pick a spec and say what you want to improve. The agent drafts a small improvement (requirements, design, tasks) with your approval at each step. When you run it and it's done, the improvement is merged into the original spec and archived. One source of truth.
/mcdev-update-steeringRefresh project steering
Refreshes all files in .mcdev-steering from your current project. Run anytime; the agent also runs it automatically after each build.
Tip: Use square brackets for placeholders, e.g., [feature-name]
One command to get started. Re-run to update.
curl -fsSL https://raw.githubusercontent.com/malchan-git/mcdev/main/scripts/install-mcdev.sh | MCDEV_REPO=malchan-git/mcdev bashRunning the install command again updates mcdev without overwriting your custom rules.
Your custom configurations are preserved during updates
"mc" = malchan
A combination of my parents' names: a reminder that everything we build carries the imprint of those who shaped us.
"I am building things that help people. Tools that make development more intentional, more structured, and ultimately more human."
The essential files and directories that power mcdev.
Core directory containing specs, rules, and agent configurations
Contains:
Project-specific rules that guide the AI agent
One-command installer for setting up mcdev
Ready to get started?