subagentapps

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10 facts, live from D1

Facts

Every real, citable fact about Claude Apps gathered this session, grouped by topic unless filtered. Filter by topic:

all topics what-it-is how-to-build sharing differentiation

what-it-is

fact	source
Claude Apps are Claude.ai's Artifacts-based surface: "Turn ideas into interactive AI-powered apps through conversation -- no coding required…	`claude.com`
By the June 25, 2025 announcement, "millions of users have created over half a billion artifacts -- from productivity tools to educational g…	`claude.com`
The AI-powered upgrade lets "users of your artifacts access Claude's intelligence through a text-based API -- answering questions, generatin…	`claude.com`
As of the October 21, 2025 update noted on the same announcement page, "Artifacts now support MCP and persistent storage" -- letting AI-powe…	`claude.com`

how-to-build

fact	source
There is no separate, distinct "Apps SDK" documented on Anthropic's own site as of this fetch -- Claude Apps are built entirely by natural-l…	`claude.com`
Iteration is conversational: "Simply ask Claude to modify your artifact ('make the buttons bigger,' 'add a timer,' 'change the color scheme'…	`claude.com`

sharing

fact	source
"The app runs on Anthropic's infrastructure, and users authenticate with their Claude account and interact with their own instance of the ar…	`claude.com`
Published artifacts offer two viewer modes: "View-only" (logged-out users can use and interact without signing in, except AI-powered artifac…	`claude.com`

differentiation

fact	source
The Claude Agent SDK is "a collection of tools that helps developers build powerful agents on top of Claude Code... programmable in Python a…	`code.claude.com`
Real documented Claude App examples cited directly on Anthropic's own pages: a mood canvas that visualizes user input, an email-writing assi…	`claude.com`

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