Extension points

Extension	How
Gateway adapter	Implement adapter; mount in server/app.py
Integration provider	IntegrationProvider + ProviderRegistry
MCP egress	providers/mcp_egress.py config integrations.mcp_servers
Client setup recipe	ClientSetupRecipe in clients/
Project profile	.daari.yaml + X-Daari-Project
Cache/ledger backend	cache.backend, observability.backend
Org fleet	enterprise bootstrap, Helm, org-cache service

Prefer ADRs before large behavioral changes (docs/adr/).