Coding & dev tools

harjot.co

@harjjotsinghh

I pay for @Muse Code but didn't want to live in a terminal. On Windows it's WSL-only. So I built Helicon: an open-source desktop app for the actual Muse CLI. • uses your existing muse login, no API key • talks to muse serve over MSP, so Muse stays the agent • resumes

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

Browserbase

@browserbase

Browserbase is now available as a plugin in Muse Code. Get started with two commands: > muse plugins marketplace add browserbase github.com/browserbase/br… > muse plugins install browse@browserbase

@TheStreamCode

@TheStreamCode

opencode plugin that bills Muse Spark usage to a Muse Code monthly subscription through a Meta device-code login instead of a pay-as-you-go API key.

@ArshansGithub

@ArshansGithub

An OpenAI Responses-compatible shim that serves the Muse assistant as a stateless HTTP model backend for Claude Code via CLIProxyAPI, one model turn per request.

@evangit2

@evangit2

A guide and tooling for pointing Muse Code's meta provider at any OpenAI-compatible gateway with API-key auth and no Meta login, including workarounds for 1.0.1's bearer-withholding change.

Meta for Developers

@MetaforDevs

Muse Spark 1.3 is now available in Muse Code and Meta Model API. It’s tuned for the agentic builds developers actually ship, including long-running, multi-agent workflows. 🧵👇(1/4) h

Lucas Switzer

@lucas_switzer

A cool thing about @Muse is that every Muse runs on its own Linux machine. So you and your Muse can do normal Linux stuff together — like build your own terminal!

Alexandr Wang

@alexandr_wang

1/ we just publicly released Muse Spark 1.3 max! we see significantly stronger coding and agentic performance on muse spark 1.3 max, so would strongly recommend trying it out even if you've already tried muse spark 1.3 high or muse spark 1.3 xhigh.

Theo (t3.gg) tests Meta's Muse Code terminal agent powered by Muse Spark 1.2 and focuses on how cheap it is compared with Claude Code.

@alexanderradahl

@alexanderradahl

A fork of Spotify's shunt plugin for Claude Code and Codex whose hooks block full reads of large files and route them to Muse Spark via muse exec; the author measured about 4,800 tokens out and 300 back on a 617-line file.

@alamorre

@alamorre

A Codex skill for selectively delegating bounded implementation tasks to Muse Spark 1.3 while the Astra model keeps strategic decisions and final review.

Peter Steinberger 🦞

@steipete

CodexBar learned a few new tricks in the last few weeks! TypeSafe, Nous Portal, Muse Code, CodeRabbit, Replicate, HuggingFace, Pi, Helmcode, v0, Charm Hyper, GitKraken AI, Bifrost My ambitions for this app REALLY outgrew the app name. (Oh and these keychain alerts are no more)

@joymadhu49

@joymadhu49

A local shim that lets the unmodified muse coding CLI run on any OpenRouter API key by translating its Responses-API-plus-extension wire protocol, so no Meta account is needed.

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

@kamellperry

@kamellperry

A reverse-engineered local CLI and FastAPI wrapper that talks to Meta AI's Muse Spark and exposes an OpenAI-compatible /v1/chat/completions endpoint, with a browser playground and a SQLite request ledger.

@kengzzzz

@kengzzzz

An installer for a muse profile in OpenAI Codex plus helper binaries, including a Meta device-code login helper, so Codex can run on Muse without the muse binary.

Anonymous

github.com

Muse-native pentesting skill pack for Muse.ai. 13 skills, 4 scan modes (quick, standard, deep, diff), gate-first, localhost vulnerable app plus passive scans only, no active probes on live sites without a separate yes. Strix-inspired with original writing. Proven on localhost (IDOR, XSS, open redirect) and on live targets with anonymized totals: 0 critical, 2 high, 4 medium, 8 low, 14 info. MIT.

Dilmer

@Dilmerv

Just tried something new with Muse and Meta VR CLI 🤯, and it’s insane that this works! But it makes sense because we’re literally getting a VM with our agent. I told the agent to install Meta VR CLI and use it to search our developer docs going forward. This is huge for VR/MR

simonwillison.net

simonwillison.net

Simon Willison reads the Muse Code launch as more evidence that long-sequence agentic tool calling is now the key model trait.

@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 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

Greg Ceccarelli

@gregce10

For funsies, I got Claude Code running on my Muse agent’s computer tonight. Muse gives every agent a Linux VM with 2 vCPUs, ~8GB RAM, 100GB of persistent disk plus a scheduler, hosted artifacts and their permission system. The VM has no inbound ports, so I built a tiny

@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.

@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.

Hello fellow token hungry degens, Like many of you, I ran out of quota on both of my 20x OpenAI Codex subscriptions and I had to go looking for alternatives (seems like an unforced error/misplay on their part to me - as a user I should be happy in their ecosystem and not go looking for alternatives because their credit pricing is insane). I wasn't able to get good information online ahead of time, but it turns out that it is almost trivially easy to get Muse Spark 1.3 running in Codex Desktop instead. It is not as good at Astra and it is not as well-integrated with Codex Desktop, but you don't need to buy a membership and the tokens are cheap as hell and it still one-shots most of my prompts. The one annoying thing is that if you want to use OpenAI models, you have to switch your up your config.toml. Probably someone has hacked around this already, I'm still early in my exploration.

@cherry-nft

@cherry-nft

Experimental dependency-free Codex skill that lets Codex send tasks to Muse and read its responses through the user's signed-in Muse browser session, no server or API key.

@atameric

@atameric

An unofficial macOS desktop client that speaks MSP over muse serve, offering streaming markdown, visible tool calls, session history shared with the terminal and screenshot attachments.

@agentic-control-plane

@agentic-control-plane

A Muse Code plugin that policy-checks every tool call against an Agentic Control Plane workspace before it runs, returning allow, ask or deny and logging each decision with its reason.

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 them to the Cline harness. TL;DR of this special prompting: - Trust source code over the user prompt, so read every call site and existing tests before starting the task - Weigh edge and error cases as heavily as the happy path - Always reproduce the bug before fixing - Don't trust the first passing test suite, and verify suspicious looking half-baked tests - Never stop at just editing, keep working until the change is verified complete. We then asked this modified harness to fix a real bug from our repo, and compared the results to the original Cline agent harness. Results: - Used 2.7x fewer tokens (19.7M → 7.2M) - Finished 2x faster (49min → 24min) - Cost 2.4x less ($7.69 → $3.25) Same Muse Spark 1.2 model, same task, only the prompting changed. Incredible how much of a performance gain Meta was able to achieve training it on these special instructions!

@BlockedPath

@BlockedPath

Meta Model API OAuth for the pi coding agent. It routes Muse Spark through the openai-responses provider, since the author notes the Muse prompt cache hits about 0% on /chat/completions, and sends 24h prompt-cache retention.

Mark Zuckerberg

@finkd

Workflows can break out a task across multiple focused agents, carry the intermediate work between stages, and return one result at the end. Good for engineering work that's too complex for a single agent.

@dirtysouthalpha

@dirtysouthalpha

Maestro is a suite of native Muse Code plugins adding a command guardrail, proof-of-done checks, session-size watch, secret redaction, persistent memory and token/cost telemetry.

@braedonsaunders

@braedonsaunders

BB plugin that runs Muse Code as a first-class provider over the Muse Session Protocol, with streamed timeline, tool rows, approvals, model picker and a subscription usage meter.

@akshat12

@akshat12

A Herdr integration that uses Muse Code lifecycle hooks to show muse panes as working, idle or blocked (approval needed) in Herdr's sidebar, with no Herdr fork.

@DevvGwardo

@DevvGwardo

muse-spark-crew is an opencode skill that orchestrates ten specialist subagents on Muse Spark 1.3, from architect to security auditor, with a phased fan-out and review gates.

@HarjjotSinghh

@HarjjotSinghh

Helicon is an open-source desktop and web app that wraps Meta's Muse Code CLI in a Codex/Claude-style interface, grouping sessions by project with history, resume and diffs on Windows, macOS and WSL2.

@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.

@LimpingNinja

@LimpingNinja

Oh My Pi plugin that registers an authenticated Muse Code install as the muse-code model provider, with a persistent muse serve host and a bundled muse-spark agent for task delegation.

@phareim

@phareim

musecode adds a /musecode slash command, a Haiku relay agent and a muse-run CLI so Claude Code Workflow fan-outs run their leaf tasks on the free Muse Spark 1.3 model through opencode.