Alex Bit

love people & solving hard technical problems. forward-looking. systems thinker. building @Codemod to make code maintenance invisible for all. ex @Meta.

[Alex Bit @alex__bit]

npx codemod ai

coding agents struggle with large migrations.
slow, unreliable, costly. they need a lot of babysitting.
if you’re a platform/principal eng you’ve felt this pain 😅

so we gave them a new superpower

npx codemod ai 🎉

everything your AI coding agent needs for fast, reliable code migrations

free, open source, local-first, no login

and it gets better over time as models improve + community contributes to the registry

try it. break it. tell us what sucks

link + debarrel case study in replies 👇🏼

[Kaelig @kaelig]

CascadiaJS 2026 opening with @biilmann!

Tomorrow I'll be speaking about how to make AI agents build UIs that match your brand(s). Can't wait!

[Alex Bit @alex__bit]

yeah, it’s awesome to see models getting smarter and using the right tool for the job.

i’m not sure what you mean by “3rd-party.” is jscodeshift a 3rd-party tool? is jssg?

to clarify, when you run:

npx codemod ai

instead of leaving your agent to pick a random codemod toolkit every time, it uses jssg, our open-source toolkit built specifically for large-scale code transformations. you can read more about how it differs from jscodeshift here:

https://t.co/dZebJeqo6q

we’re working hard to make jssg so good that agents choose it by default. until then, users only need to run one command. one and done. no need to think about codemod tooling again. (It comes with an auto-updater. It’s local. oss)

and if someone has already solved a problem before, like removing barrel files across a large codebase, your agent doesn’t have to waste time and tokens building a new codemod from scratch and rediscovering edge cases. it can reuse a battle-tested codemod from the registry and focus on getting the job done.

If you ever care to try our open-source codemod toolkit (adopted by React, Node.js, Nuxt, pnpm, webpack, react router, express, and many more) I would love to hear your feedback on it.

[Alex Bit @alex__bit]

yeah, it’s awesome to see models getting smarter and using the right tool for the job.

i’m not sure what you mean by “3rd-party.” is jscodeshift a 3rd-party tool? is jssg?

to clarify, when you run:

npx codemod ai

instead of leaving your agent to pick a random codemod toolkit every time, it uses jssg, our open-source toolkit built specifically for large-scale code transformations. you can read more about how it differs from jscodeshift here:

https://t.co/dZebJeqo6q

we’re working hard to make jssg so good that agents choose it by default. until then, users only need to run one command. one and done. no need to think about codemod tooling again. (It comes with an auto-updater. It’s local. oss)

and if someone has already solved a problem before, like removing barrel files across a large codebase, your agent doesn’t have to waste time and tokens building a new codemod from scratch and rediscovering edge cases. it can reuse a battle-tested codemod from the registry and focus on getting the job done.

If you ever care to try our open-source codemod toolkit (adopted by React, Node.js, Nuxt, pnpm, webpack, react router, express, and many more) I would love to hear your feedback on it.

[Alex Bit @alex__bit]

@david1989_zhu Great point

[Alex Bit @alex__bit]

@Russell3402 💯! Using the right tool for the job. Would love to hear your feedback:

[Alex Bit @alex__bit]

npx codemod ai

give codex the skills and tools it needs to build better codemods faster.

build, test, run, and publish codemods for any language, all from the cli.

every new codemod published to the registry makes the skill smarter and more useful for everyone running:

npx codemod ai

[Alex Bit @alex__bit]

@aabyzov @steipete 💯, Would love to hear your feedback on this

[Alex Bit @alex__bit]

npx codemod ai

give codex the skills and tools it needs to build better codemods faster.

build, test, run, and publish codemods for any language, all from the cli.

every new codemod published to the registry makes the skill smarter and more useful for everyone running:

npx codemod ai

[Alex Bit @alex__bit]

@mazdak Mazdak salam. Check this out. Would love to hear your feedback

[Alex Bit @alex__bit]

npx codemod ai

give codex the skills and tools it needs to build better codemods faster.

build, test, run, and publish codemods for any language, all from the cli.

every new codemod published to the registry makes the skill smarter and more useful for everyone running:

npx codemod ai

[Alex Bit @alex__bit]

@netrunner_btc Yes. Check this out;

[Alex Bit @alex__bit]

npx codemod ai

give codex the skills and tools it needs to build better codemods faster.

build, test, run, and publish codemods for any language, all from the cli.

every new codemod published to the registry makes the skill smarter and more useful for everyone running:

npx codemod ai

[Alex Bit @alex__bit]

npx codemod ai

give codex the skills and tools it needs to build better codemods faster.

build, test, run, and publish codemods for any language, all from the cli.

every new codemod published to the registry makes the skill smarter and more useful for everyone running:

npx codemod ai

[Vinh Nguyen @vinhnx]

I have made some improvements for codemods https://t.co/jlFYZY0Feb

[email protected]
[email protected]
[email protected]
[email protected]
[email protected]
[email protected]

Available to install from @codemod https://t.co/N9tGe3mWRE

[Alex Bit @alex__bit]

@poteto @stylexjs Lauren, run npx codemod ai once and moving forward cursor will build better codemods faster for u. And if the codemod already is built and published by others it just fetches that for u.

[Alex Bit @alex__bit]

npx codemod ai

Give your agents all it needs to build better codemods faster. And if someone has already built a codemod for your use case, it automatically searches the registry and fetches that for you.
Would love to hear your feedback if you take it for a spin.
https://t.co/UkvhCweB1W

[David Sacks @DavidSacks]

Q: How are job postings for software engineers rising rapidly despite AI agents automating coding?

A: Because there’s far more code to manage than ever before. We’re already seeing a 14x YoY increase in GitHub commits, and it’s accelerating.

AI has dramatically lowered the cost of writing code, so it’s now being used across far more businesses, applications, and use cases.

We’re at the beginning of a massive productivity boom driven by the proliferation of bespoke software throughout the entire economy.

Coding has been AI’s breakout use case this year. The fact that it’s increased demand for software engineers — rather than decreased it — should call into question the entire “AI will cause mass job loss” narrative.

[Alex Bit @alex__bit]

@samsantosb @codemod , open source tooling for deterministic code mining and modification. OpenJS Foundation partner and adopted by React, Node.js, Nuxt, pnpm, webpack, react router, express, and many more. 2M+ codemod runs to date.

npx codemod ai

https://t.co/PlfOCGdyKm

[Jonas Hernlund @jonashernlund]

@sama Two months free won't move teams off Claude Code. Lock-in isn't price. It's repo conventions, custom commands, internal evals, CI integration. Migration tooling beats trial length. Ship the codemod, not the discount.

[Alex Bit @alex__bit]

@jonashernlund @sama 💯 specially that building codemods has never been easier.

npx codemod ai

https://t.co/PlfOCGdyKm

[Alex Bit @alex__bit]

awesome. have you heard about our codemod runtime jssg (JS ast-grep)? if you ever take it for a spin, would love to hear your feedback on it
https://t.co/dZebJeqVVY

you can just run
npx codemod ai

and your coding agents will get all the knowledge and tools it needs to build jssg codemods! just describe what you want from your agent...

[React Summit 🔥The biggest React conference @ReactSummit]

🤖 Asking AI to refactor 200 files burns tokens, takes minutes, and sometimes hallucinates. A codemod does it reliably — for free. Nicolas Carlo shows how to use AI to write the codemods your team actually needs, live.

Catch it at React Summit US!