> ## Documentation Index > Fetch the complete documentation index at: https://docs.medera.info/llms.txt > Use this file to discover all available pages before exploring further. # Agentic Architecture > How the canvas, runtime, and care orchestrator fit together. The Medera Agentic Framework is built around two pillars: the **visual canvas** where you author workflows, and the **care orchestrator** that runs them. Both share one event bus and one tenant audit trail. ## Stack ## Workflow execution ## Tenant isolation Every workflow runs inside a tenant-scoped transaction. Row-level security enforces that all reads and writes are filtered by `organization_id` — a misconfigured tenant ID cannot reach another tenant's data. ## Versioned execution Published workflows are immutable snapshots. Draft edits made after a publish never affect executions of the published version — what you run is what you signed. *** ## What's next Vocabulary and building blocks. Multi-agent runtime. Variable scopes and persistent memory. Build your own workflow.