Coding & dev tools

@Solar2004

@Solar2004

A config (in Spanish) plus two helper proxies for using Muse Spark 1.2 Contributor from Claude Code and Hermes through routatic/proxy and an OpenCode Go subscription.

eli

@_seemethere

Just released a pi extension to make it easier to use Muse Spark 1.1 within pi! Including easy /login behavior! You can install it with: > pi install npm:pi-meta-ai

@vstaln

@vstaln

Copyable block of the engineering conventions Muse Spark was co-trained with. Per the README, in Cline's harness it cut a real bug fix from 19.7M tokens, 49 min and $7.69 to 7.2M tokens, 24 min and $3.25.

@meta-models

@meta-models

Meta's TypeScript SDK and docs for building clients that drive Muse Code agent sessions over the Muse Session Protocol, published as @muse-code/sdk with zero runtime dependencies.

@danny-hines

@danny-hines

Call Muse Code from Codex or ChatGPT desktop via MCP tools and skills for independent code review, approach comparison or delegated implementation, using a Muse Code subscription or API key.

Mark Zuckerberg

@finkd

Releasing Muse Code in beta today. It's a terminal coding agent that takes on complete software engineering tasks across large repos: planning changes, writing code, validating the results. Powered by Muse Spark 1.2, a coding-focused model update.

AICodeKing tests Meta's Muse Spark 1.2 and the Muse Code terminal agent on the free tier, covering pricing and features before running KingBench 3.

Softreviewed shows how to get at Muse Spark 1.3 for autonomous, terminal-based coding without paying for a coding subscription.

@h1ddenpr0cess20

@h1ddenpr0cess20

A Muse Spark 1.1-powered terminal coding agent forked from Grok Build, with a full-screen TUI, headless mode for CI and ACP embedding in editors.

Cursor

@cursor_ai

Muse Spark 1.3 from Meta is now available in Cursor!

@EclipseAditya

@EclipseAditya

Pi coding agent extension that adds Muse Spark 1.2, 1.2-contributor and 1.1 via the Meta Model API, a maintained fork that fixes a false auth warning on pi v0.84+.

@BrokkAi

@BrokkAi

muse-acp is a dependency-free Rust bridge between the Agent Client Protocol and Muse Code's Muse Session Protocol, letting developers use their Muse Code subscription inside Zed, IntelliJ IDEA and other JetBrains IDEs.

@caicaitou001

@caicaitou001

A config and write-up that makes muse-spark-1.2-contributor via OpenCode Go work in DeepSeek Harness, fixing empty first-turn output and multi-turn thinking replay errors.

Nadia Dubois walks through API key setup, auth, tool-calling config and cost control for Muse Spark 1.3 at $1.25/M input and $4.25/M output tokens.

@TerryZH

@TerryZH

An unofficial uninstall utility that finds Muse Code binaries and state files, estimates reclaimable space in a dry run and deletes them only with --uninstall.

@jeperkins4

@jeperkins4

A zero-dependency Ruby client for Meta's Model API focused on the Responses API: reasoning replay across tool loops, previous_response_id state, web_search grounding and typed errors with retries.

@gosukiwi

@gosukiwi

Docker Sandboxes (sbx) kit spec that runs Muse Code in YOLO mode inside an isolated sandbox via a musex command, verified with sbx v0.39.0 on macOS arm64.

@jnyross

@jnyross

Muse Code adaptation of Lauren Tan's pstack engineering skills from Cursor: all 45 skills with upstream-verbatim bodies and only the install frontmatter adjusted for Muse.

Meta's developer blog introducing Muse Spark 1.2, co-trained with the new Muse Code terminal harness, with 1M-token context for multi-file refactors and hours-long tasks.

@ChrisjanWust

@ChrisjanWust

Native server-only Paseo v0.8 provider built on @muse-code/sdk and muse serve over MSP, with no ACP adapter or per-turn CLI wrapper.

@Srimi1

@Srimi1

An experimental macOS gateway that keeps the stock Muse Code CLI in charge of the UI, sessions and tools but swaps the model connection for OpenAI or Z.ai models via a loopback gateway.

Avi Flombaum

@aviflombaum

Zuck and @Meta really crushed how amazing @Muse is. I told it about my parking app because I tried using it originally to find parking but it couldn’t do it and like 12 hrs later I got this alert that it could help me

Meta Developers session on the Muse Spark and Muse Code build paths: the model provides see/decide/act, the harness provides reliability, scale and auditability for production code.

@dttdrv

@dttdrv

An unofficial native macOS client for the Muse Code CLI in Meta AI's design language, sharing sessions with the terminal so work can resume in either place.

OpenRouter

@OpenRouter

Muse Spark 1.2 from @AIatMeta is live on OpenRouter alongside expanded global access to both Muse Spark models. At $1.25/M in and $4.25/M out, the model builds its position as one of the most price-efficient, high-intelligence models on OpenRouter.

Mileage might vary https://github.com/Some1sm/MuseBridge it's not a complete functional agent at all lol but it can create, read, delete and download whole projects from muse itself. Setup instructions in the readme I hope with this base somebody with chatgpt or claude sub can get a working thing done. https://preview.redd.it/10luxcr9qwqh1.png?width=749&format=png&auto=webp&s=faa8f42078b3e4966b292a6aec86bc213a233d05

Meta's announcement of Muse Spark 1.3 for Muse Code and the Meta Model API, claiming ~20% fewer tool calls and ~25% fewer tokens than 1.2, with a max reasoning mode.

@hypery11

@hypery11

oh-my-musecode is a content bundle and CLI for Muse Code that installs 35 skills, slash commands, hooks, an MCP server and themes, with an ownership ledger so uninstall restores the machine byte for byte.

After running out of quota on two Codex subscriptions, found it was almost trivially easy to run Muse Spark 1.3 in Codex Desktop; not as good as Astra, but cheap and it one-shots most of his prompts.

Mark Zuckerberg

@finkd

Muse Code is out of beta and now built to handle bigger, more complex engineering tasks. Developers can get started with one command today: curl -fsSL dev.meta.ai/install.sh | bash

@meta-models

@meta-models

Meta's official recipes for building agents and coding tools on the Model API with Muse Spark 1.3, covering API basics, multi-agent patterns and end-to-end use cases via OpenAI- and Anthropic-compatible SDKs.

Cline

@cline

We tried using Meta's new Muse Code agent, but it has a bug that doesn't let it sign in from a docker container. So we did a fun experiment: Meta claims Muse Spark 1.2 was co-trained with their Muse agent harness. So we extracted instructions from their system prompt and added

@cellear

@cellear

A read-only visual companion that reads Muse Code session event logs and rebuilds multi-agent sessions (a primary agent and its workers) as a live tree.

STARTUP HAKK tests Muse Spark 1.3 and argues the harness, tools and context around a model matter as much as the model, pitching their OpenMonoAgent harness.

Meta for Developers

@MetaforDevs

AI developers - we’ve published a technical guide covering how to get started with Muse Spark on Meta Model API. Muse Spark is a multimodal reasoning model built for agentic tasks, coding, computer use and long-context workflows. See what you can build 👉 bit.ly/4vWMkZx

@seb-patron

@seb-patron

Adversarial-review and fix-verification skills for Muse, built after two round-1 reviewers approved a diff with 0 blocking findings while an independent review found 13 real issues.

@bex-co

@bex-co

muse-code-acp is an unofficial Node adapter that exposes Meta's Muse Code through the Agent Client Protocol, so it can be driven from Zed or VS Code with streaming, tool calls and MCP servers.

@swalker326

@swalker326

OpenCode plugin that reads the muse CLI login, registers a muse-code provider against api.meta.ai and rediscovers available Muse models every 30 minutes, metered against the Muse Code subscription.

@Israelmusondaayliffe

@Israelmusondaayliffe

Muse workspace skills ported from a Codex/Claude Code plugin marketplace, translating manifests and hooks into procedures Muse can run with its terminal, browser and files.

Dilmer

@Dilmerv

Tips for 🥽 VR/MR developers, or anyone getting into VR by building a new app or game: leverage the Meta VR CLI + Muse Code in your agentic workflow. - An MCP server that gives your AI coding agent full context from the Meta VR docs - Device management: list, inspect, and