Meta's Muse Code coding agent exits beta with SDK and subscriptions

Meta

Tools official + media 2 src. ~1 min

Muse Code moved out of beta into general availability on August 31, positioned for larger engineering tasks and installable via `curl -fsSL dev.meta.ai/install.sh | bash`. The GA adds inter-session messaging that shares state between sessions directly, multi-agent workflows that split a task across focused agents, an SDK in developer preview for embedding custom agents with session resumption, and monthly subscription plans.

Why it matters

Meta is now charging for an agentic coding product and exposing it as an embeddable SDK, turning Muse Code from a beta experiment into a direct commercial competitor to Claude Code, Codex, and Cursor.

Importance: 3/5

GA of a major-lab coding agent, official announcement plus aggregator coverage

Sources