Show HN: RoBrain – Shared memory for AI agents, with rejected alternatives (github.com)

RoBrain, an open-source tool developed by Rory Plans, introduces a shared memory system for AI agents that allows teams to maintain continuity in their decision-making processes. By capturing every decision made and recording the alternatives that were rejected, RoBrain prevents repetitive mistakes and ensures that new decisions take into account the team's prior reasoning. This is significant for the AI/ML community as it promotes more coherent, efficient collaboration across various AI development environments, such as Claude Code, Cursor, and Copilot. The tool automatically captures decision contexts, including rationale and past alternatives, allowing team members to seamlessly transition their work without losing valuable historical insights. For instance, if a developer named Alice decides to use Zustand for state management due to performance issues with Redux, this decision can be accessed by another developer, Bob, when he begins a new feature. RoBrain utilizes structured data stored in PostgreSQL to track these decisions, flag contradictions, and automatically load relevant past decisions at the start of each session. This capability not only facilitates informed decision-making but also enhances onboarding processes for new team members by providing them instant access to the project's decision history.