Archive - Dr. Josh C. Simmons

Two green pull requests can make a red main

Give two coding agents separate worktrees.

Oct 31 • Dr. Josh C. Simmons

The bug is underneath your code

This week in eleven lines

Oct 27 • Dr. Josh C. Simmons

One character can reverse an agent leaderboard

Take two hypothetical agents with the same 50% success rate.

Oct 24 • Dr. Josh C. Simmons

I'm not fighting anymore.

I have decided to stop fighting Google from within Google’s products.

Oct 20 • Dr. Josh C. Simmons

Your concurrency limit is not a queue limit

Ten jobs are running.

Oct 17 • Dr. Josh C. Simmons

Replaying an agent should not call the model

Imagine a release agent that proposes publishing after CI fails.

Oct 10 • Dr. Josh C. Simmons

I'm a single-issue voter now

This morning the White House suspended Microsoft, Adobe, Cognizant, Infosys, Tata, Wipro, HCL and Capgemini from PERM, the labor certification step that…

Oct 8 • Dr. Josh C. Simmons

Your agent should lose access when the task ends

Consider a coding agent asked to summarize one issue in a private repository.

Oct 3 • Dr. Josh C. Simmons

September 2026

You're paying more for less AI

The night before Dev Day, OpenAI told everyone on the $200 plan that the plan is back, and it's worth about half of what it was a week ago.

Sep 30 • Dr. Josh C. Simmons

Make your coding agent prove its tests can fail

An agent writes a patch, writes the tests for the patch, runs them, and reports success.

Sep 26 • Dr. Josh C. Simmons

How to make a hit video, according to 195 of the best films ever made

I charted where the feeling goes in 195 films from the IMDb Top 250.

Sep 24 • Dr. Josh C. Simmons

This CEO told the Navy he would automate his way out of American workers

I drove out to East Pecos Road in Mesa to film Hadrian's Factory 3, the building that opened in January with the governor, a congressman, and the mayor…

Sep 23 • Dr. Josh C. Simmons

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