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Herrington Darkholme @hd-nvim.bsky.social · 28/07/2025

#ast_grep_trick ast-grep's rule is heavily inspired by CSS selectors. The rule `identifier` node is `inside` the node `call_expression` is something similar to `call_expression > identifier`

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Herrington Darkholme @hd-nvim.bsky.social · 19/06/2025

letting AI write an ast-grep rule for me. I'm using cursor, ast-grep mcp tool, custom cursor rule and gemini-2.5pro

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Herrington Darkholme @hd-nvim.bsky.social · 04/06/2025

Compare biomejs plugin with ast-grep in one picture: both syntax and speed.

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Herrington Darkholme @hd-nvim.bsky.social · 29/05/2025

One pic to compare ast-grep rule syntax with biome plugin syntax. The example shows the rule no-implicit-bool-jsx-attr, e.g. <div draggable /> => <div draggable={true} />

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Herrington Darkholme @hd-nvim.bsky.social · 04/05/2025

A proof of concept to run ast-grep via OXC parser

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Herrington Darkholme @hd-nvim.bsky.social · 16/02/2025

ast-grep playground now shows the wasm parser version it is using. convenient to debug parser version difference from CLI

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Herrington Darkholme @hd-nvim.bsky.social · 13/02/2025

Learning a tool can be overwhelming, but ast-grep's new UI makes it easier to explore bit by bit. 📊 Better visuals: Show more rule information 🔍 Filter examples: By rules, features, and languages 📈 Sort by complexity: Start with easy rules and explore sophisticated ones

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Herrington Darkholme @hd-nvim.bsky.social · 09/02/2025

my hand-rolled code is better than AI i guess

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Herrington Darkholme @hd-nvim.bsky.social · 30/01/2025

New ast-grep example from @tmcw.mastodon.social.ap.brid.gy ! ast-grep.github.io/catalog/tsx/...

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Herrington Darkholme @hd-nvim.bsky.social · 20/01/2025

ast-grep now has HTML rule example! BTW you can also use it with Vue, Svelte or Astro!

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Herrington Darkholme @hd-nvim.bsky.social · 20/01/2025

Hey LLM, please read this step-by-step breakdown of ast-grep rule.

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Herrington Darkholme @hd-nvim.bsky.social · 08/01/2025

TIL civetlang, typed coffee-script, supports if/else in type

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Herrington Darkholme @hd-nvim.bsky.social · 29/12/2024

ast-grep's LSP now can report unused directive and remove them!

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Herrington Darkholme @hd-nvim.bsky.social · 11/12/2024

Can switching colorscheme when editing Nextjs files helps telling if it is client or server component? github.com/HerringtonDa...

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Herrington Darkholme @hd-nvim.bsky.social · 04/12/2024

New ast-grep feature! You can now use `range` to select AST nodes in the source code. Why will it be useful? Find nodes using sources like Rust Analyzer, TypeScript, and other language tools! e.g. Use tsc to find errors and tell ast-grep to fix them!

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Herrington Darkholme @hd-nvim.bsky.social · 03/12/2024

Pro tip: You can combine three ast-grep flags: `--stdin` , `--inline-rules`, and `--json`, to use the tool programmatically without API! The image is an example of using bash to invoke ast-grep.

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Herrington Darkholme @hd-nvim.bsky.social · 02/12/2024

New ast-grep perf improvement for multi-language projects! Previously the CLI scans all files even if a file has no matching rule. Now it is will only scan candidate files which can produce lint errors. In Next.js, where sg lints only Rust, the trick improves linting time by 90%

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Herrington Darkholme @hd-nvim.bsky.social · 01/12/2024

This is how bsky.app performs under React Scan

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Herrington Darkholme @hd-nvim.bsky.social · 28/11/2024

The design space of code search query

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Herrington Darkholme @hd-nvim.bsky.social · 22/11/2024

DOJ is requesting Google to sell all "Chrome", including Chrome, Chromium, and its underlying infrastructure such as the V8 JavaScript engine. This can result in serious web technology stagnation.

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Herrington Darkholme @hd-nvim.bsky.social · 09/11/2024

Having fun designing ast-grep inspection output like a college student 🤪🤪🤪

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Herrington Darkholme @hd-nvim.bsky.social · 07/11/2024

ast-grep got 50 contributors!!🥰

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Herrington Darkholme @hd-nvim.bsky.social · 04/11/2024

What ast-grep cannot (easily) do? ast-grep.github.io/advanced/faq...

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