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Den

@den.dev
1.7K followers 375 following 238 posts

Lead Maintainer of Model Context Protocol

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Den @den.dev · 14h
So, uh... Kinda neat, Sonos now has a MCP server dsc.ai/sonos-mcp
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Den @den.dev · 26/09/2026
I also got very comfortable with Linux for basically everything. Fable/Opus are really good about solving basically every problem I had that forums failed to solve. bsky.app/profile/den....
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Den @den.dev · 26/09/2026
One of the interesting observations that I had about my dev/computer usage in the past few years is that I became entirely OS/ecosystem-agnostic. There is absolutely no point in being super-attached to one platform, especially with a lot of tools now running really well cross-plat.
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Den @den.dev · 21/09/2026
The new Blogspot default theme. I used PaperMod but at this point it’s an extremely bastardized version of the stock that it might as well be a new theme.
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Den @den.dev · 16/09/2026
Welcome! 🙌
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Den @den.dev · 16/09/2026
You’re too kind, @lizthegrey.com 🙌 Big AI person is definitely more of an @alilleybrinker.com thing compared to me!
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Den @den.dev · 14/09/2026
Thank you for the consistent really high-signal feedback!
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Den @den.dev · 14/09/2026
We’re cooking something with MCP 🎉 modelcontextprotocol.io/extensions/s...
modelcontextprotocol.io
Skills - Model Context Protocol
Discover and read Agent Skills from MCP servers
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Den @den.dev · 07/09/2026
Amazing - love to see more people tinker with the API capabilities!
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Den @den.dev · 30/08/2026
Sometimes folks forget that MCP as a protocol is never actually "done" - we're constantly iterating on changes and releasing new revisions. For a protocol with this scope and adoption, I am actually pleasantly surprised how quickly we can move. dsc.ai/mcp-seoul-ke...
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Den @den.dev · 28/08/2026
Got the chance to travel to beautiful Seoul 🇰🇷 to keynote the MCP Dev Summit. Wild to think that MCP is less than two years old 🤯 Full video: dsc.ai/mcp-seoul-ke...
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Den @den.dev · 26/08/2026
Huge community effort - we're here to serve 🙏
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Reposted by Den
dax @thdxr.com · 26/08/2026
i complained a lot about the mcp spec in the past but it's getting very good now
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Den @den.dev · 24/08/2026
By the way, we just GA-d Enterprise Managed Auth (EMA) for MCP in Claude. No more auth prompts - just smooth SSO sailing for supported connectors.
Enterprise Managed Auth in Claude
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Den @den.dev · 24/08/2026
Love to see it - some good feedback there!
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Den @den.dev · 23/08/2026
We're about to be cooking with the new MCP roadmap 👉 dsc.ai/mcp-roadmap
Snapshot of the MCP roadmap.
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Den @den.dev · 08/08/2026
For the past few months, I've been almost exclusively running everything in my life on Linux. Claude has been a massive unlock in helping me customize it and diagnose emerging issues quickly, and it doesn't feel as bad as it was even just a few years back. And surprisingly, it... just works?
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Den @den.dev · 05/08/2026
Don't mind me, just reverse-engineering my way to playable Hunters in Halo: Campaign Evolved.
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Den @den.dev · 04/08/2026
Really appreciate it! 🙏
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Den @den.dev · 04/08/2026
✻ Thankfulrazzledazzling...
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Den @den.dev · 04/08/2026
Thank you - so excited to be joining such an amazing team 🥳
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Den @den.dev · 04/08/2026
Thank you! 🙏
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Den @den.dev · 04/08/2026
So this happened ✨
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Den @den.dev · 02/08/2026
We are so back 💪 @simonwillison.net - if you have any feedback, all ears. Happy to make sure that the new spec and specs beyond it work well for devs.
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Den @den.dev · 01/08/2026
I should probably package up these instructions a bit better. I am working on better camera controls as we speak.
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Den @den.dev · 29/07/2026
Well that's neat 😏 You can hook into some debugging modes in the game.
A debug menu shown on the left side of the screen in Halo: Campaign Evolved.ImGui used in Halo: Campaign Evolved
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Den @den.dev · 29/07/2026
This is pretty amazing. Free cam in Halo: Campaign Evolved CAN, in fact, be unlocked.
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Den @den.dev · 28/07/2026
OMG, so I discovered secret machinima controls in Halo: Campaign Evolved, and by proxy learned that all this time I was playing as a half-body ghost?
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Den @den.dev · 28/07/2026
The new MCP spec is now officially in flight 🛫 2026-07-28 is here, with a fully stateless protocol dsc.ai/new-mcp
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Den @den.dev · 07/07/2026
How is Bluesky STILL relying on emails for 2FA in 2026? Yubikeys and authenticator apps have been invented, right? I didn't dream it up?
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Den @den.dev · 05/07/2026
Aside from the bug, love seeing how it seems there’s a Renaissance of Linux adoption around me.
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Den @den.dev · 02/07/2026
Brand new MCP SDKs just dropped for those of you who are brave enough to be on beta branches to test the new spec ✨ dsc.ai/sdk-betas
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Den @den.dev · 24/06/2026
It's nice to see how in the past week alone ID-JAG picked up so much community traction. Who knew - people don't like to be annoyed by unnecessary auth prompts.
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Den @den.dev · 23/06/2026
Plugged @standard.site integration for my blog and it's been a delight!
den.dev
MCP Apps And Interactive UIs In MCP Clients
MCP Apps adds an official extension for rendering interactive UIs inside MCP clients, building on MCP-UI and OpenAI's Apps work to move beyond plain text.
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Den @den.dev · 21/06/2026
More people need to get comfortable with doing multi-agent adversarial analysis on their code.
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Den @den.dev · 21/06/2026
It’s my own URL shortener
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Den @den.dev · 21/06/2026
I'm not kidding, Enterprise Managed Auth is probably the one thing that I am most excited about in the auth space this year. One SSO auth into Claude and you're logged into a bunch of other MCP servers automatically. Magic. You can sign your org up 👉 dsc.ai/emaw
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Reposted by Den
mr. TIM @timkellogg.me · 19/06/2026
very cool. here’s the link. it covers over a big sharp edge in authentication and makes MCP far more accessible to broad enterprise use blog.modelcontextprotocol.io/posts/enterp...
blog.modelcontextprotocol.io
Enterprise-Managed Authorization: Zero-touch OAuth for MCP
The Enterprise-Managed Authorization extension to the Model Context Protocol is now stable, enabling organizations to centrally provision MCP server access through their identity provider so users get...
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Den @den.dev · 19/06/2026
Unreal. Our today's MCP announcement is top of HN right now.
Zero-Touch OAuth for MCP on top of Hacker News
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Den @den.dev · 29/05/2026
I am getting tired of overpermissioned tokens floating around, so the new MCP spec will be better for those that like step-up auth.
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Den @den.dev · 28/05/2026
MCP is gonna be stateless starting the next protocol version ✨
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Den @den.dev · 26/05/2026
Don't sleep on MCP Tunnels 🫨 dsc.ai/mcpt
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Den @den.dev · 25/05/2026
I am now fully expecting you to complete the full troll circuit!
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Den @den.dev · 22/05/2026
We're cooking a new MCP spec version 🍳 dsc.ai/mcpspec
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Den @den.dev · 18/05/2026
Still surreal to think this happened.
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Den @den.dev · 14/05/2026
Part of the reason the default in the spec now is recommending CIMD - one client, basically determined by DNS.
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Reposted by Den
Dan Moore is at Monktoberfest @mooreds.com · 13/05/2026
TIL recently, the client credentials flow is now part of the MCP specification (as an extension). This lets agents egage directly with an MCP server, rather than always acting on-behalf-of a human users. Check it out here: modelcontextprotocol.io/extensions/a... Any #mcp devs implement this?
modelcontextprotocol.io
OAuth Client Credentials - Model Context Protocol
Machine-to-machine authentication for MCP using the OAuth 2.0 client credentials flow
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Den @den.dev · 11/05/2026
In a local unrestricted dev environment the gh CLI is just more flexible. Caveat here - you have a local unrestricted environment to run the CLI in.
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Den @den.dev · 11/05/2026
I'm on a mission to make Claude the best MCP client. Diving deep into every MCP issue in our public repos. Having MCP problems with Anthropic products? File here: ✨ github.com/anthropics/c... ✨ github.com/anthropics/c... Blocked or no response? Tag me, we'll fix it.
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Den @den.dev · 11/05/2026
GitHub MCP is really good if you want GitHub functionality on the go. If you have a local environment, use the CLI.
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