Agent Upstart Cool things people are building with agents. Five links a day, one line each. 2026-10-23T00:00:00-07:00 https://agentupstart.com/ Agent Upstart launches: verified skills, playbooks, and tools https://agentupstart.com/ 2026-10-23T00:00:00-07:00 Seventeen verified skill install pages, eighteen task playbooks, four tools, three starter kits, and four hubs — every claim checked against the author's own docs.