June's AI keyword is the maturation of agents. NotebookLM evolved into a research partner that executes code and finds its own sources. Claude Code now supports a five-level hierarchy where agents spawn agents. Gemini Omni opened a new creative paradigm: video built through conversation.
Anthropic added webhooks to Claude Managed Agents. Long-running AI agents now proactively notify your app on key state changes β idle waiting for approval, outcome evaluation complete, errors. With HMAC signing, replay protection, and SDK helpers in 7 languages, this is the practical guide for developers running AI agents in production.
On May 13, 2026, Notion officially launched its Developer Platform with version 3.5. Workers lets you run custom code without servers, a new CLI is designed for AI coding agents, and the External Agent API directly connects Claude Code, Cursor, and Codex to your Notion workspace. Notion has crossed the line from collaboration tool to AI workflow hub.
On May 5, 2026, Notion officially launched Custom Agents out of beta β just three months after more than 1 million agents were created during the preview period. The GA release brings new admin controls for creation permissions, per-agent credit limits, a spending dashboard, and automatic safeguards against unexpected costs.
On May 6, 2026, Anthropic added three major capabilities to Claude Managed Agents: Dreaming (self-improving agents that review past sessions), Outcomes (rubric-based grading by a separate evaluator model), and Multi-Agent Orchestration (a lead agent that delegates tasks to specialist sub-agents). AI is evolving from assistant to self-improving teammate.