This week I’m talking with Matt Carey about Code Mode and how most of us have been thinking about MCP all wrong. Matt works on the Agents SDK and MCP at Cloudflare — we discuss how server-side Code Mode lets one MCP server expose all ~2,500 Cloudflare API endpoints in about 1,000 tokens of context, the dynamic Worker loader that runs model-written code safely in a V8 isolate, Matt’s own workflow with Claude, where memory fits into the future of agents, and his Zaggy git wrapper that keeps agents from force-pushing his repos.

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Sponsors:

• Coder.com – Secure environments where devs and agents work in parallel. Open by design. Secure by default.
• Tailscale – Adam loves Tailscale! Easy, secure, identity-based access to anything. Tailscale deploys quickly and enables Zero Trust access to any resource on your network. From CI/CD runners across multi-cloud environments, to SaaS tools and infrastructure, Tailscale connects it all, seamlessly.
• RWX – CI/CD platform for high velocity teams. When agents help developers write code in minutes, validation becomes your bottleneck. RWX gives agents programmatic control, sub-second cached builds, and semantic outputs they can act on. No commit required. Just iterate until CI passes, then push.
• Fly.io – The home of Changelog.com — Deploy your apps close to your users — global Anycast load-balancing, zero-configuration private networking, hardware isolation, and instant WireGuard VPN connections. Push-button deployments that scale to thousands of instances. Check out the speedrun to get started in minutes.

Featuring:

• Matt Carey – Website, GitHub, LinkedIn, X
• Adam Stacoviak – Website, GitHub, LinkedIn, Mastodon, X

Show Notes:

Featured

• Matt Carey on the Cloudflare blog
• You’ve Been a Bad Agent
• Cloudflare
• Code Mode: give agents an entire API in 1,000 tokens
• Code Mode: the better way to use MCP
• Cloudflare MCP Server
• Cloudflare Agents SDK
• Cloudflare Agents SDK on GitHub

Cloudflare platform

• Dynamic Workers
• Cloudflare Workers
• Durable Objects
• AI Gateway
• Vectorize

MCP and code-mode references

• Model Context Protocol
• Introducing the Model Context Protocol
• Code execution with MCP
• CodeAct paper
• GitHub MCP Server
• Datadog MCP Server
• Pydantic Monty

Coding agents and tools

• Claude Code
• Claude Code voice dictation
• OpenCode
• Cursor
• OpenAI Codex CLI
• Changesets
• Handy

Agent memory and personal AI

• Granola
• Letta
• Mastra
• Supermemory
• Poke
• Pi coding agent

Homelab and infrastructure

• Swamp Club
• Proxmox VE
• Tailscale
• 1Password
• K3s
• Pi-hole
• DuckDB
• Apache Parquet
• ClickHouse

Something missing or broken? PRs welcome!

This week I’m talking with Adam Jacob, founder of System Initiative and creator of Swamp, about what happens when AI agents change the entire shape of software development. We discuss how he went from an 18-person team down to five and shipped Swamp 900 times in four weeks, why he brought User Acceptance Testing (UAT) testing back from the 90s, why software architecture (and domain-driven design) suddenly matters more than knowing how to write code, the live demo where I pointed Swamp at my Proxmox box and watched it write its own automation (blew my mind!!), and why he’ll never accept a pull request to Swamp, ever.

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Sponsors:

• Coder.com – Secure environments where devs and agents work in parallel. Open by design. Secure by default.
• Tailscale – Adam loves Tailscale! Easy, secure, identity-based access to anything. Tailscale deploys quickly and enables Zero Trust access to any resource on your network. From CI/CD runners across multi-cloud environments, to SaaS tools and infrastructure, Tailscale connects it all, seamlessly.
• RWX – CI/CD platform for high velocity teams. When agents help developers write code in minutes, validation becomes your bottleneck. RWX gives agents programmatic control, sub-second cached builds, and semantic outputs they can act on. No commit required. Just iterate until CI passes, then push.
• Fly.io – The home of Changelog.com — Deploy your apps close to your users — global Anycast load-balancing, zero-configuration private networking, hardware isolation, and instant WireGuard VPN connections. Push-button deployments that scale to thousands of instances. Check out the speedrun to get started in minutes.

Featuring:

• Adam Jacob – Website, GitHub, X
• Adam Stacoviak – Website, GitHub, LinkedIn, Mastodon, X

Show Notes:

Featured

• Swamp Club
• Swamp manual
• Swamp extensions
• Swamp leaderboard
• Swamp on GitHub
• Swamp extensions on GitHub
• System Initiative
• System Initiative on GitHub

AI coding tools

• Claude Code
• Claude Code docs
• OpenAI Codex CLI
• Codex on GitHub

Infrastructure and automation

• Chef Infra
• Proxmox VE
• QEMU
• Grafana
• Honeycomb
• Better Auth
• TypeScript
• Talos Linux
• Ubiquiti
• DigitalOcean
• Hetzner Cloud
• Amazon S3
• Incus
• Kubernetes

Developer platforms and companies

• GitHub
• GitLab
• Block

Related Changelog episodes

• Rebuilding DevOps from the ground up
• From Chef to System Initiative
• From Chef to System Initiative (remastered)
• The war for the soul of open source
• OSCON

Something missing or broken? PRs welcome!

Bitwarden’s CLI got hit by the Checkmarx supply-chain campaign, TypeScript 7.0 beta lands with the Go-rewritten compiler running ~10x faster than 6.0, and pgBackRest lost its maintainer of thirteen years leaving anyone running production Postgres with a real dependency-trust task this week. We’ve also got Ubuntu 26.04 LTS shipping with TPM-backed full-disk encryption, and Matz dropping Spinel as an AOT path that takes Ruby to native binaries. This week was a good reminder that the tools we depend on are all moving at once. Security, performance, and maintenance aren’t isolated threads.

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Sponsors:

• Coder.com – Secure environments where devs and agents work in parallel. Open by design. Secure by default.

Featuring:

• Adam Stacoviak – Website, GitHub, LinkedIn, Mastodon, X

Today on the show I’m talking with Amelia Wattenberger — designer, data-viz veteran, ex-GitHub Next, and now designing Intent at Augment Code. What if the last 30% of any software project is about to become the hardest part you’ve ever done? That’s the argument Amelia is making today. We discuss the identity crisis developers are having as agents take over the keyboard, the epic redesign of developer tooling in this agent-first world, the arc from autocomplete to chat to CLI back to UI, why Intent treats a workspace as their core primitive not a chat thread, the tradeoffs between one-worktree-per-agent vs. one-worktree-per-task, and why she thinks prototyping just got easier but finishing got harder.

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Sponsors:

• WorkOS – Auth for CLI with AuthKit from WorkOS — Bring secure browser-based login to your terminal apps using the OAuth Device Flow, with the same polished AuthKit experience plus SSO, MFA, and passkeys. Learn more at WorkOS.com and AuthKit.com
• NordLayer – Toggle-ready network security for modern businesses. Get an exclusive offer: up to 22% off NordLayer yearly plans plus 10% on top with the coupon code changelog-10-NORDLAYER. Try it risk-free with a 14-day money-back guarantee at nordlayer.com/thechangelog
• RWX – CI/CD platform for high velocity teams. When agents help developers write code in minutes, validation becomes your bottleneck. RWX gives agents programmatic control, sub-second cached builds, and semantic outputs they can act on. No commit required. Just iterate until CI passes, then push.
• Fly.io – The home of Changelog.com — Deploy your apps close to your users — global Anycast load-balancing, zero-configuration private networking, hardware isolation, and instant WireGuard VPN connections. Push-button deployments that scale to thousands of instances. Check out the speedrun to get started in minutes.

Featuring:

• Amelia Wattenberger – Website, GitHub, X
• Adam Stacoviak – Website, GitHub, LinkedIn, Mastodon, X

Show Notes:

• GitHub Copilot — the launch that kicked off this era (mentioned ~12×)
• GitHub Next — GitHub’s R&D team; where Amelia worked
• GitHub Actions
• Intent — Augment Code’s new workspace-first agent app that Amelia is building (the core product discussion)
• Augie — Augment’s agent
• Claude Code
• Codex
• Notion AI
• VS Code
• Incus — system-level containers/VMs; the Canonical LXD fork
• Proxmox — Adam’s hypervisor platform for the sandbox
• ZFS — storage layer Incus is built on
• Bun — JavaScript runtime
• Rust
• Go
• Ruby on Rails
• SvelteKit
• Svelte
• TypeScript
• TanStack Start

Something missing or broken? PRs welcome!

Astral is joining OpenAI, which says a lot about where the center of gravity is moving for developer tools, LiteLLM got hit by a nasty supply-chain attack, and OpenCode blew up as the latest serious open source swing at the coding-agent stack. We’ve also got Rust doing a very public reality check on its own pain points, WorkOS pushing AuthKit into CLI auth, Ryan Lizza using AI to build an open source TurboTax alternative, and a fresh httpx fork that turns open source maintenance drama into a real dependency story. If nothing else, this week was a good reminder that tools, trust, and control all move together.

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Sponsors:

• WorkOS – Auth for CLI with AuthKit from WorkOS — Bring secure browser-based login to your terminal apps using the OAuth Device Flow, with the same polished AuthKit experience plus SSO, MFA, and passkeys. Learn more at WorkOS.com and AuthKit.com

Featuring:

• Adam Stacoviak – Website, GitHub, LinkedIn, Mastodon, X

Adam talks with Tailscale co-founder and Chief Strategy Officer David Carney about where Tailscale is headed next: TSIDP, TSNet, multiple tailnets, and Aperture. They get into clickless auth (via TSIDP), TSNet apps, multiple tailnets for isolation and control, and Aperture, Tailscale’s private AI gateway for API key management, observability, and agent security.

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Sponsors:

• Augment Code – Adam loves “Auggie” – Augment Code’s CLI that brings Augment’s context engine and powerful AI reasoning anywhere your code goes. From building alongside you in the terminal to any part of your development workflow.
• NordLayer – Toggle-ready network security for modern businesses. Get an exclusive offer: up to 22% off NordLayer yearly plans plus 10% on top with the coupon code changelog-10-NORDLAYER. Try it risk-free with a 14-day money-back guarantee at nordlayer.com/thechangelog
• Squarespace – Turn your expertise into a business with the all-in-one platform for websites, services, and getting paid. Use code CHANGELOG to save 10% on your first website purchase.
• Fly.io – The home of Changelog.com — Deploy your apps close to your users — global Anycast load-balancing, zero-configuration private networking, hardware isolation, and instant WireGuard VPN connections. Push-button deployments that scale to thousands of instances. Check out the speedrun to get started in minutes.

Featuring:

• David Carney – Website, GitHub, X
• Adam Stacoviak – Website, GitHub, LinkedIn, Mastodon, X

Show Notes:

Send an email to David ~> [email protected]

Mentioned in this episode

• Tailscale
• Aperture by Tailscale
• TSIDP
• TSNet
• Multiple tailnets
• Tailnet policy file syntax
• Model Context Protocol (MCP)
• MCP specification
• Proxmox VE
• Incus
• OIDC / OpenID Connect
• OAuth 2.0
• Okta
• Microsoft Entra ID
• Google Workspace
• Keycloak
• Salesforce
• Anthropic
• Amazon Bedrock
• Oso
• Cerbos
• Go
• GopherCon
• Simon Willison

Something missing or broken? PRs welcome!

This week’s been wild — Iran bombed AWS data centers to take down Claude, OpenAI dropped GPT-5.4 (and it’s seriously good for coding), and living brain cells are literally playing DOOM. We’ve also got a heartfelt take on what it feels like to be a 10x engineer in the age of AI, plus some cool new tools like Handy for speech-to-text and web haptics. Oh, and new MacBook Pros with M5 Pro and M5 Max are up for pre-order. Try not to impulse buy (or do).

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Sponsors:

• Sonatype – Develop software fearlessly. Find out how at sonatype.com.

Featuring:

• Adam Stacoviak – Website, GitHub, LinkedIn, Mastodon, X

Adam and Jerod get into the news, Jerod officially retires from the pod (and Changelog), plus a bonus for our Changelog++ subs!

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Sponsors:

• Augment Code – Adam loves “Auggie” – Augment Code’s CLI that brings Augment’s context engine and powerful AI reasoning anywhere your code goes. From building alongside you in the terminal to any part of your development workflow.
• Squarespace – Turn your expertise into a business with the all-in-one platform for websites, services, and getting paid. Use code CHANGELOG to save 10% on your first website purchase.
• Notion – Custom Agents that automate the busywork so your team can focus on real work. Try them free at notion.com/changelog

Featuring:

• Adam Stacoviak – Website, GitHub, LinkedIn, Mastodon, X
• Jerod Santo – Website, GitHub, LinkedIn, Mastodon, X

Show Notes:

• Ladybird adopts Rust, with help from AI - Ladybird
• The JavaScript Oxidation Compiler
• Become an Oxc Sponsor | The JavaScript Oxidation Compiler
• Boshen (@boshen_c) / X
• Am I the only one who genuinely prefers on-prem? : r/devops
• The Software Development Lifecycle Is Dead | Boris Tane
• THE 2028 GLOBAL INTELLIGENCE CRISIS
• Anish Acharya on X: “a different way this could go down…”
• The Mythical Agent-Month – Wes McKinney
• NanoClaw - Secure AI Agent for WhatsApp, Telegram & More
• Zed — Agent Client Protocol

Something missing or broken? PRs welcome!

Burke Holland works on GitHub Copilot by day and codes with his AI agents always. Early January, Burke posted about how Opus 4.5 changed everything. We were all still buzzing from the holiday-season 2x usage bump Claude gave us, and Opus 4.5 felt like a genuine step function in capability. Burke and I get into all the details. Opus 4.5 may have started the fire, but GPT-5.3 Codex is certainly living up to the hype.

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Sponsors:

• Augment Code – Adam loves “Auggie” – Augment Code’s CLI that brings Augment’s context engine and powerful AI reasoning anywhere your code goes. From building alongside you in the terminal to any part of your development workflow.
• Squarespace – Turn your expertise into a business with the all-in-one platform for websites, services, and getting paid. Use code CHANGELOG to save 10% on your first website purchase.
• Notion – Custom Agents that automate the busywork so your team can focus on real work. Try them free at notion.com/changelog

Featuring:

• Burke Holland – Website, GitHub, X
• Adam Stacoviak – Website, GitHub, LinkedIn, Mastodon, X

Show Notes:

• Opus 4.5 is going to change everything
• Jon Gjengset Explains Rust 2026
• How we rebuilt Next.js with AI in one week Rebuilding Next.js using AI in a single week
• The era of the Small Giant (Changelog #673)
• Layercode — Voice AI infrastructure for TypeScript developers
• Diffs — An open source diff and code rendering library
• Pierre Computer Company
• Code Storage
• Entire — Developer platform from former GitHub CEO Thomas Dohmke
• Tigris Data
• @traskjd tweet
• GitHub Copilot

Something missing or broken? PRs welcome!

Wes McKinney on the mythical agent-month, install Peon Ping to employ a Peon today, Andreas Kling explains why Ladybird is adopting Rust, Cloudflare has a new MCP server that’s quite efficient, and Elliot Bonneville thinks the only moat left is money.

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Join the discussion

Changelog++ members support our work, get closer to the metal, and make the ads disappear. Join today!

Sponsors:

• Augment Code – Adam loves “Auggie” – Augment Code’s CLI that brings Augment’s context engine and powerful AI reasoning anywhere your code goes. From building alongside you in the terminal to any part of your development workflow.

Featuring:

• Jerod Santo – Website, GitHub, LinkedIn, Mastodon, X

Steve Ruiz joins us for a deep-dive on tldraw (a very good free whiteboard) and the business he’s built selling SDKs that help others build very good whiteboards (and more) with tldraw’s high-performance web canvas.

Along the way, we discuss the excitement/fear we share about keeping our agents busy, how SDK and infra companies are affected differently by agentic software than SaaS companies, how Steve is approaching the coming era of internal tooling, what will happen when we equip LLMs with an infinite canvas, and more.

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Changelog++ members get a bonus 15 minutes at the end of this episode and zero ads. Join today!

Sponsors:

• Augment Code – Adam loves “Auggie” – Augment Code’s CLI that brings Augment’s context engine and powerful AI reasoning anywhere your code goes. From building alongside you in the terminal to any part of your development workflow.
• NordLayer – Toggle-ready network security for modern businesses. Get an exclusive offer: up to 22% off NordLayer yearly plans plus 10% on top with the coupon code changelog-10-NORDLAYER. Try it risk-free with a 14-day money-back guarantee at nordlayer.com/thechangelog
• Squarespace – A website makes it real! Use code CHANGELOG to save 10% on your first website purchase.

Featuring:

• Steve Ruiz – Website, LinkedIn, X
• Adam Stacoviak – Website, GitHub, LinkedIn, Mastodon, X
• Jerod Santo – Website, GitHub, LinkedIn, Mastodon, X

Show Notes:

• tldraw.com
• tldraw.dev
• Remarkable: the paper tablets for focused work
• Agent starter kit • tldraw docs
• tldraw fairies

Something missing or broken? PRs welcome!