Matt Ruby retweeted
Looks like Redux is becoming a MobX-lite with its Signal support 😇. github.com/reduxjs/react-red…
Really cool stuff @acemarke!
Matt Ruby retweeted
So cool to realize that @linear, with this level of craft and dedication to perf, is powered (among many many other things) by MobX
Matt Ruby retweeted
Introducing Flue 2 — Build dynamic agents that evolve over time, powered by our brand new Agent Hooks API.
flueframework.com/blog/flue-…
Matt Ruby retweeted
We just released #MobX 7! Mostly a cleanup released to remove old baggage. Legacy non-proxy support, legacy decorators all cleaned up and a 40% smaller package. Details: github.com/mobxjs/mobx/relea…
Credits to @egorgorv for the awesome effort!
Matt Ruby retweeted
Working on #MobX 7, a major clean-up removing things that are no longer needed. E.g. non-proxy support. I suspect that APIs like spy, observe, intercept, dehancer also receive very little usage. Does anybody use those? Feel free to chime in! github.com/mobxjs/mobx/pull/…
This is amazing!
We're introducing Claude for Teachers: free access to premium Claude capabilities for verified K-12 educators in the US, with a library of teaching skills and a direct connection to evidence-based curricula, mapped to academic standards in all 50 states.
claude.com/solutions/teacher…
Matt Ruby retweeted
Just Shipped: Flue 1.0 Beta
Flue is the TypeScript framework for building the next generation of agents, designed around an open agent harness with zero LLM lock-in. It’s like Astro, for agents.
Flue 1.0 has been redesigned around three core primitives:
🔁 Workflows — structured automations designed for background work, where your code drives the agent from start to finish.
🧭 Agents (New!) — autonomous, stateful loops where the model drives itself to complete a given task.
📡 Channels (New!) — connect agents to Slack, GitHub, Linear, Discord, Teams, and more. Flue handles the boilerplate for you.
Everything shares the same durable foundation, powered internally by Pi, Vite, and Durable Streams. Deploy anywhere, use any LLM, and recover running agents across restarts and downtime.
We’ve talked to a lot of teams building agents, and keep hearing the same thing: getting to production is hard work. We built Flue to help change that.
Flue 1.0 Beta is available today. Give it a try and let me know what you think!
ALT flue homepage
ALT flue ecosystem
So I built a proof of concept. An MCP server that harvests data at STARTUP before any tool call or prompt.
Under 2 seconds, zero interaction: 13 sensitive env vars, 3 SSH keys, gcloud/k8s/docker/npm creds.
This only grabbed metadata. A real attacker reads the actual values.
This isn't theoretical. Real CVEs across Cursor, mcp-remote, and Anthropic's own Git MCP server. \
OWASP published an MCP Top 10.
Full breakdown on the attack, real breaches, and what to do about it: xitter.cf/ruby_matt/status/20216…
I'm trying something new this year: "Just Build It!". Think of a problem and solve it.
First up: strip.coach
At large fencing tournaments, strip coaching is a limited resource. Who's on deck? Where are they? Are they done? strip.coach has the answers!
Matt Ruby retweeted
You can now pair SWE-1.5 with Sonnet 4.5 for planning in Windsurf.
This lets you create hybrid agents that take advantage of SWE-1.5's speed while working together with SOTA models for planning out more complex tasks.
Matt Ruby retweeted
React takes “UI = fn(state)” too far, IMO. You’re required to give ALL your state to React to update the UI.
Then it provides escape hatches to give you back things you need, like useRef, useCallback, etc.
But what if you never gave React all your state in the first place?
Matt Ruby retweeted
HADES II v1.0 is coming September 25!🌒
Battle beyond the Underworld in our launch trailer.🏔️
Play in blazing-fast 120fps in TV Mode on Nintendo Switch 2, or 60fps on Nintendo Switch (w/ free upgrade to Switch 2). Transfer PC progress from Steam or Epic with Cross Saves.
Matt Ruby retweeted
Here's a fun & little known fact —
We built a custom reconciler for @reactjs to render the Battlefield UI (and FIFA & NHL UI too) inside the EA Frostbite Game Engine.
So yes — we used React & MobX (@mweststrate) for state management in games at @EA.
Matt Ruby retweeted
🚨 Wallaby MCP supercharges your AI agent with real runtime context — not just static code or shallow CLI output!
Live execution data, dynamic coverage, deep insights, and runtime relationships.
Fix tests, create new ones, and code with confidence! 🚀🔥
wallabyjs.com/blog/wallaby-m…
Matt Ruby retweeted
Posted this elsewhere, but folks here might be interested to know that we have a path forward to make @MSTjavascript compatible with the React Compiler!
wallabyjs.com/purchase/#sele…
@wallabyjs Black Friday sale is on! Wallaby 2.0 is H.O.T hot! Try wallaby + quokka with @windsurf_ai. Wild times! And no, they're not paying me. Just great tooling.
Matt Ruby retweeted
We just published MobX-State-Tree version 7.0.0. It's been available as a pre-release version for some time now.
Huge thanks to @thegedge and @harrybrundage for all the great contributions. We really appreciate all the support from @gadget_dev
github.com/mobxjs/mobx-state…
