Muse Code vs. Muse

Muse Code is Meta’s terminal-based AI coding agent built to take on complex software engineering tasks across large repositories. The agent is powered by Muse Spark 1.2 and is designed to plan code changes, write implementation code, validate results, and support end-to-end developer workflows. Muse Code can coordinate multiple persistent subagents for each task, helping solve difficult problems faster and with less manual intervention. Its architecture uses a simple agent loop enhanced by async background agents that remain active for the full session instead of being spawned only for individual steps. These background agents reduce repeated information gathering, carry out next actions, and communicate back to the main agent when useful. Muse Code’s runtime uses a local event log where model calls, tool runs, approvals, and edits are continuously appended. This event log serves as a single source of truth, making the runtime replay-exact and restart-safe if a crash or interruption occurs. The design allows Muse Code to handle long-running development work without losing progress or context. Muse Code includes bundled skills such as /plan for approval-gated task planning, /grill for stress-testing plans, and /goal for working toward successful completion of a defined objective. Example workflows include interpreting a video input, understanding the requested output, and producing a rich software experience such as a vacation home marketing and booking page. By combining terminal execution, autonomous planning, persistent background agents, replay-safe runtime design, bundled skills, and Muse Spark 1.2 model support, Muse Code helps developers complete ambitious coding tasks with greater reliability.

Meta Muse is a personal AI agent designed to take action across websites, apps, and everyday digital workflows on behalf of the user. Rather than functioning only as a conversational assistant, Muse can navigate the web, complete forms, book appointments, interact with customer service, and perform other multi-step tasks. It operates on a persistent dedicated virtual machine with its own browser, giving the agent an environment where it can continue working after a task has been assigned. Users can talk to Muse through the dedicated mobile app or through WhatsApp in a conversational format similar to ordinary messaging. The agent can connect to services such as email, calendars, Instagram, and other applications that are relevant to a user’s goals and routines. When given a broader objective, Muse can create an action plan, monitor progress, and return with suggestions or next steps as the situation develops. It can also build its own tools when a task requires functionality that is not already available through an existing integration. User control is built into the workflow through approval requirements for sensitive actions such as sending messages or making purchases. Muse maintains an audit trail that shows what the agent has completed and what it intends to do next. Security features include protected credential storage that the agent cannot directly read, planned 1Password integration, and one-time payment card numbers designed to reduce exposure of real card information during purchases. Meta Muse is intended for users who want a persistent AI agent that can coordinate personal tasks, work across digital services, and act autonomously within boundaries defined by the user.