v2026.4.5

Added

• MCP Hub dashboard page (/mcp) -- visual management center for MCP servers with four tabs: Servers (aggregated view with health dots, lazy tool introspection), Discover (curated registry of 12 popular MCP servers with YAML copy), Playground (execute any tool in isolation with auto-generated forms and history), Canvas (@xyflow topology of server-agent relationships). Sidebar health badge polls every 30s, Launchpad shows MCP health widget
• MCP Hub backend -- server aggregation service with identity hashing and deduplication, health checks with 30s TTL cache, single-tool playground execution. 6 API endpoints under /api/mcp/. Sandbox enforcement (command allowlist, env scrubbing) flows through all operations
• Browser agent starter -- browser-agent.yaml template with initrunner-browser-mcp and @modelcontextprotocol/server-filesystem MCP servers, giving new users a working MCP setup out of the box
• Browser MCP auto-sandbox workaround -- initrunner-browser-mcp auto-retries with --no-sandbox when Chrome fails due to AppArmor/unprivileged user namespace restrictions (Ubuntu 23.10+, containers, VMs)

Changed

• Compose renamed to Flow -- kind: Compose is now kind: Flow, services: is now agents:, depends_on: is now needs:. Old compose files get a clear error with exact field renames. 131 files changed across schema, CLI, dashboard, docs, and tests
• Dashboard visual redesign (Electric Charcoal v2) -- deeper surface scale, desaturated accent tokens, sans-serif section labels, left-edge nav indicators, unified metrics strips, HeaderBar with breadcrumbs and Cmd+K trigger, ternary border-radius system (0px/2px/pill). Removed: noise grain, glow effects, lime top-edge card borders, monospace section labels, pill-shaped CTAs
• Dashboard screenshot updated for v2 redesign
• Example role versions bumped for flow rename republish