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Overview

Christopher Meiklejohn — Ph.D., Software Engineering (CMU). Notes on multi-agent systems, distributed computing, fault injection, and the engineering practice of shipping research.

News

Blog 2 months ago
The Holdout Is a One-Way Door Evidence cannot independently confirm the claim it helped shape.
The first cross-validation scheme in the audio project looked clean at the row level and failed inside each row. Each row contained a pair of performances, and the pair rows did not overlap. But an individual performance could appear in more than one pair
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Blog 2 months ago
Two Notebooks Lost The code was mostly right. The experiments were already lost.
I deleted two notebooks of audio research during this project, but not at once. Notebook 1 failed after four days on April 30. I wrote down what had gone wrong and started over that day. Notebook 2 failed for a different reason on May 6, less than a week
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Blog 2 months ago
The Whole Night
On Thursday, August 13, Goose opened the West Coast run in San Diego with "Animal." Sixteen people in Zabriskie had said they were going. Seventeen had said they were on the couch. By the time the band finished the "726" encore, fourteen people had writte
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Blog 2 months ago
Science at LLM Speed Research-like output is cheap. A valid claim still needs evidence that can show it is wrong.
Earlier this year, the program chairs for one of the largest machine-learning conferences found references in submitted papers to publications that did not exist. This was not a thought experiment about what a language model might do. It was not a benchma
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Blog 3 months ago
One Writer Our tools assume one writer, and assume that writer is a human. Nothing computes what a change reads and writes at runtime, so the only known fix is brute force priced for organizations.
In this blog post, I discuss three days in July 2026 when a single agent session ran away from me, and what those three days revealed about the concurrency assumptions buried in our development tooling. Six weeks ago I wrote The Test Suite Was the Inciden
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Blog 3 months ago
The Hard Call Is the Whole Job A cancelled flight, three confident machines, and the woman on the Hilton Diamond line who refused to stop.
Toronto to Detroit to Norfolk. Two nights of Goose at the Dome, Monday and Tuesday, and I was flying in the night before. I have made this trip, or one shaped like it, more times than I can count. On Sunday night my connection to Norfolk slipped an hour,
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Blog 4 months ago
The App That Lives Between Shows
"Thank god this app rocks and I can live through the chompers." (a chomper, in the chat, on a night they could not make the show) Two months ago I wrote up Goose Spring '26 . The through-line of that post was that the live show finally worked. Live Activi
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Blog 4 months ago
The Test Suite Was the Incident A night of brittle fixtures, 49 failed CI runs, and an expensive lesson about what happens when AI agents write the test suite and nobody owns the test data.
At 10:00 PM EDT last night I signed up for the $100 plan for Codex, the OpenAI coding agent that was driving most of the night's work, because about a dozen Zabriskie PRs were in flight and I wanted them merged before I went to bed. Before 3:00 AM I had u
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Blog 5 months ago
Rift For thirty years I programmed with Phish on, every day. In 2026, the music is out of phase with the work.
Someone on the Phish Facebook group reposted a TikTok overdub. Vanessa Bayer and Paul Rudd at a lunch table, losing their minds to a song while their coworkers stare. The original was Fleetwood Mac. Whoever made it swapped in "Down With Disease." That mov
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Blog 5 months ago
Babysitting the Agent Two weeks in, even with all the hooks I've built, working with the agent has become a chore. Every shipped feature ends with me clicking through it to find out what didn't actually work.
I'm building Zabriskie , a social app for live music, mostly with a coding agent. I want to write something honest about what the last two weeks have actually felt like, because the data and the lived experience have been pointing at the same thing and I
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