Is Test Blindness Another Second-Order Effect of AI Coding Agents?

Six months into agent adoption, I measured what changed in one busy repo alongside patterns I've been seeing in reviews. Here's what stood out and what comes next.

3 steps towards a faster TRU (Time to Reviewable URL)

Today I am formalizing TRU - a new metric for Frontend teams that shows how quickly you can produce reviewable work. By definition, it's also a good measurement of how quickly your team can iterate on ideas and bugfixes too.

Shrinking a Rust binary output from 18mb to 7mb

Simple tweaks to the options in the release profile can dramatically reduce the footprint of the resulting binary

Using Cargo workspaces with a `napi-rs` project

Using workspaces to manage crates and dependencies within a default `napi-rs` project.

Making a Rust application slower than the Node version. And then fixing it.

Re-Writing in Rust == faster with more features

Making a feature faster than the node equivalent, whilst adding more capabilities

How to avoid a potential bug with JSDoc + @typedef

With no build-step in sight, it can be tempting to put more and more type information into comments.

At least 7 reasons to avoid @ts-expect-error and @ts-ignore

After a deep dive, I now consider both to be dangerous.

Destructure with care. The story of a Typescript gotcha

A problem that even the strictest Typescript/ESLint settings cannot help with.

Typescript and JSDoc, shared names for Types + Values

Showing how you can re-use the same name for types and values with Zod. Includes sample in Typescript + JSDoc

Unwrap a value with the question mark operator in Rust

Step-by-step explanation of use-cases for the `?` operator in Rust