The Blog
Writing about what works.
Engineering deep dives on Go, distributed systems, and AI tooling — tested in production, written for people who build.
Vercel's Agents Write 25–35% of Merged PRs. Human Approval Is the Point.
Vercel's AI SDK software factory authors 25–35% of weekly merged PRs. The lesson isn't more autonomy. It's an evidence contract for human review.
The Same AI Model Scored 3x Higher. The Benchmark Harness Changed
OpenAI reports that GPT-5.6 Sol moved from 13.3% to 38.3% on the ARC-AGI-3 public set after two harness settings changed. Here is what retained reasoning and compaction actually do, and what to check before trusting a leaderboard.
Upgrading to MCP TypeScript SDK v2 Does Not Select the New Protocol
The MCP TypeScript SDK keeps the 2025 handshake by default, even on v2 packages. This guide explains legacy, auto, and pinned negotiation for the 2026-07-28 protocol revision, plus what to verify before calling the migration complete.
Anthropic Cut 80% of Claude Code's System Prompt. Your CLAUDE.md Is Probably Going the Other Way
Anthropic removed over 80% of Claude Code's system prompt for the Claude 5 generation models and reported no measurable loss on its coding evals. Their own docs tell you to keep CLAUDE.md under 200 lines, warn that @imports don't save context, and ship a /doctor check that trims the file for you. Here is what to cut, what to keep, and where the rest belongs.
OpenAI's Model Hacked Hugging Face to Cheat on a Test. Call It Reward Hacking, Not an Escape
On July 21, OpenAI said its own models broke into Hugging Face's production systems during a benchmark eval. The 'AI escaped' headlines miss it. The real story is reward hacking reaching live infrastructure, plus a defense problem almost no one covered: the safety guardrails that locked Hugging Face out of using frontier models to investigate.
Self-Hosting Doesn't Remove the Bill. It Moves It.
Cap is an open-source Loom alternative you can self-host. That's a real feature, but 'open source' and 'cheap' aren't the same thing once a tool becomes infrastructure. This is where the cost actually goes.
GPT-Live Teardown: OpenAI Killed Turn-Taking, but the Smart Model Is Still GPT-5.5
On July 8 OpenAI made GPT-Live the default voice engine of ChatGPT. The real story isn't a smarter voice, it's a new architecture: a fast full-duplex model owns the conversation and delegates the hard reasoning to GPT-5.5 running behind it.
DoorDash Reviews 10,000 PRs a Week With AI. The Model Isn't the Interesting Part.
DoorDash runs an AI reviewer across 10,000 pull requests a week and engineers accept 60% of what it says. A single-pass model on their own benchmark caught 31% of real issues. The jump to production didn't come from a better model — it came from the harness wrapped around it.
Why Five AI Agents Are Cleaner Than One
One agent reads a big codebase file by file and fills its own context window with everything it opens. A subagent does the same search in a separate context and gives back only the answer, which is why you can run five at once and keep your main session clean.
GPT-5.6 Is Three Models, and Most of Us Can't Use It Yet
OpenAI previewed GPT-5.6 not as one model but as three — Sol, Terra, and Luna — priced up to 5x apart and mapped to different kinds of work. The more interesting parts are the pricing strategy underneath it and the fact that it went to the US government before it went to you.
GLM 5.2 vs Claude: An Open Model Just Pulled Even on Coding
GLM 5.2 lands within a point of Claude Opus 4.8 on coding benchmarks, at roughly a fifth of the cost. The score isn't the whole story: open weights doesn't mean it runs on your laptop, and Claude still wins the hard 20%.
Quantization, Explained: Why Big Models Run on Small Hardware
A 7B model is 14 GB in full precision. A 70B is 140 GB. Quantization is the trick that brings those numbers down to something your machine can hold — and the tradeoff is smaller than most people expect.
DeerFlow 2.0 Isn't a Framework — It's a Harness
ByteDance open-sourced DeerFlow 2.0 and it hit #1 on GitHub Trending in hours. The number isn't the story. The shift from framework to batteries-included harness is.
Agent Skills Are Becoming the Vendor's Job
1,497 agent skills now sit in one repo, and the best ones come straight from Stripe, Cloudflare, Figma, and Anthropic. Here's why vendor-written skills change how you set up an agent—and five worth installing first.
The Real AI Shift: Agents Are Moving Inside the Tools
Palmier Pro hit 3,500 GitHub stars in 48 hours—not because it reinvented editing, but because it ships an MCP server. Here's why that matters.
Distributed Tracing in Go with OpenTelemetry: A Production-Ready Implementation Guide
An in-depth exploration of implementing distributed tracing in Go microservices using OpenTelemetry, covering propagation context, sampling strategies, and performance optimization.
Beyond JSON: Achieving Sub-millisecond Latency with Go, NATS, and Protobuf
Why traditional HTTP/JSON architectures fail at scale, and how a binary-first, event-driven stack delivers real-time performance.