cognee: open-source AI memory platform for agents
cognee is an Apache-2.0 open-source AI memory platform for agents: a self-hosted knowledge graph engine with a four-method API (remember, recall, forget, improve) and a Claude Code plugin.
codebase-memory-mcp: zero-dep code intelligence
Pure-C, single-binary MCP server that indexes a codebase into a Tree-Sitter knowledge graph in milliseconds. 13.3k stars, MIT, 5,604 tests, 11 agents. arXiv 2603.27277 reports 83% quality at 10× fewer tokens.
DeepMind RCT: AI Tutoring Boosts Math in Sierra Leone
Pre-registered RCT in 12 Sierra Leone schools (1,763 students): Gemini Guided Learning delivers +0.258 SD in math over 8 weeks (1.2–1.7 years of learning). Single trial, single country; the achievement gap widens.