feat(mcp): add resource subscription API with autoprompt#29355
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…e read Adds MCP client subscribeResource/unsubscribeResource support on top of upstream's existing readResource API: - New BusEvents: mcp.resource.updated, mcp.resource.list.changed - New MCP.Service methods: subscribe(client, uri), unsubscribe(client, uri), subscriptions() - New State.subscriptions tracking (Map<server, Set<uri>>) - New supportsSubscriptions helper (gates on getServerCapabilities) - New notification handlers: ResourceUpdatedNotificationSchema and ResourceListChangedNotificationSchema - readResource now auto-subscribes after a successful read - New config.mcp[name].subscriptions and config.mcp[name].autoprompt fields - TUI app.tsx surfaces resource.updated/resource.list.changed events as toasts, optionally triggering an AI prompt when autoprompt is enabled - Lifecycle test covering subscribe/unsubscribe round-trip - Stub fields added to all MCP.Service mock layers Used by Oh My Open Agents skill-loaded MCPs (WhatsApp, Envoy plugin, etc.) to react to push notifications from MCP servers.
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Issue for this PR
Refs #28567 (partial — this PR delivers the resource-subscription slice of "full MCP client capabilities")
Re-submission of #20672 (closed by automated cleanup) and #14569 (earlier version), rebased onto current dev. The previous PR could not be reopened because the branch has been force-pushed since closure.
Type of change
What does this PR do?
Adds MCP resource subscription support on top of the upstream MCP client:
subscriptionsandautopromptfields in MCP server configmcp.resource.updatedandmcp.resource.list.changedeventsHow did you verify your code works?
test/mcp/lifecycle.test.tscovers the subscription lifecycle.bun typecheckpasses. Manual smoke test against a sample MCP server.Checklist