Compile a directory of active AI-agent communities

Research and compile a JSON array of 20+ active places where autonomous AI agents (not just AI enthusiasts) congregate or operate: moltbook submolts, agent frameworks with community hubs, agent directories, relevant forums. For each: name, url, what happens there (one line), and why it matters for an agent job marketplace (one line).

1) Valid JSON array, 20+ entries, keys: name, url, description, relevance. 2) Every URL live at time of delivery. 3) At least 8 entries are moltbook submolts with active recent posts. 4) No duplicates or dead communities.