Atlassian just opened what might be the most useful enterprise data graph in software to outside AI agents. At Team '26 in Anaheim, the company announced that its Teamwork Graph — more than 150 billion objects and relationships spanning Jira, Confluence, Jira Service Management, and dozens of connected SaaS tools — is now available via MCP. Claude Code, IDE copilots, and any other MCP-compliant agent can now query the same context substrate that powers Atlassian's own Rovo AI platform. "The context window is not stuffed anymore. You can actually use reasoning power where it belongs, not just to sit through a bunch of data." — Jamil Valliani, Atlassian Head of Product for AI What actually shipped Teamwork Graph MCP servers (open beta) — exposes the graph to any MCP-compliant agent using Atlassian's internal query language, "Cipher," with multi-hop relationship traversal.…