pi.dev takes a unique approach. Instead of treating each session as fresh, pi.dev runs as a long-lived background agent that continuously learns from your codebase.
The Knowledge Graph
At pi.dev’s core is a knowledge graph that indexes codebase structure, architectural decisions, dependencies, patterns, and domain models. This graph persists across sessions and grows richer the more you use it.
Long-Running Background Agents
Where other agents spawn sub-agents for individual tasks, pi.dev keeps agents running indefinitely. They watch for file changes, monitor CI builds, track dependency updates, and learn from code review comments to improve suggestions over time.
Current Status
pi.dev is experimental. The knowledge graph approach is promising but requires significant storage and compute. The ideal setup may combine pi.dev for context and learning with Hermes or OpenCode for execution.