SpecManager
Spec-driven development plugin for Claude Code
Visit specmanager.org ↗What is SpecManager?
SpecManager is a Claude Code plugin that organizes AI-assisted development into a structured, gated pipeline. It replaces ad-hoc prompting with a formal workflow: PRD, architecture, design, plan, build, and walkthroughs. Each stage produces approved markdown artifacts stored in git, and a local kanban board surfaces the entire pipeline at localhost:4317.
Designed for founders and developers using Claude Code, SpecManager provides specialized AI agents for product management, architecture, design, and planning. You review and approve each stage before the next begins, maintaining velocity while adding discipline. The maker says it was built with Claude Code. Everything runs locally, requires no login, and is free and open source.
Momentum
Daily activity over the last 30 days: upvotes, unique visits, new GitHub stars and Hacker News points.
How do we know it's vibe coded?
vibetrend discovered SpecManager automatically. Evidence: GitHub joanseg/specmanager; repo has .claude, CLAUDE.md. View source.
Similar vibe-coded apps
#2 this week
Manage teams of AI agents to run your business from one dashboard
Agent development environment for running multiple coding agents in parallel
AI converts documents into natively editable PowerPoint presentations
Open-source video production system directed by AI agents
Open-source AI job search agent that runs locally in your CLI
Open-source desktop client for DeepSeek Harness with plugin architecture
MCP plugin and platform that optimizes context windows for AI coding agents