Planwell
An AI copilot for PMs, integrating with Linear
Period:
2025
Website:
https://planwell.co
Technologies:
Elixir
Phoenix LiveView
OpenAI
Anthropic

Planwell is an AI-powered project planning assistant that helps Product Managers break down software projects into well-structured tasks and milestones. Through an iterative dialogue, it guides PMs from high-level project concepts to detailed Linear tickets.
Features
- Interactive project planning dialogue
- AI-guided project breakdown:
- High-level goals and scope definition
- Milestone planning and prioritization
- Task breakdown and estimation
- Risk identification and mitigation
- Iterative refinement at each planning stage
- Direct Linear integration for task syncing
- Project templates and best practices
- Collaborative planning sessions
Technical Implementation
The application showcases several advanced LLM patterns:
- Structured dialogue management using Elixir/OTP
- Context-aware conversation state handling
- Dynamic prompt generation based on project context
- Integration with Linear API
- Real-time collaboration using Phoenix LiveView
- Multi-step planning workflow orchestration
- Template-based prompt engineering
Impact
- Streamlined project planning process
- Improved task breakdown consistency
- Better alignment between planning and execution
- Knowledge capture from experienced PMs
- Reduced planning overhead