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(disclaimer: I used codex to write this script)
Adds a new `yarn generate-changelog` script to simplify the process of writing changelogs. You can use it as follows:
```
$ yarn generate-changelog --help
Usage: yarn generate-changelog [--codex|--claude] [--debug] [<pkg@version> ...]
Options:
--codex Use Codex for commit summarization. [boolean]
--claude Use Claude for commit summarization. [boolean]
--debug Enable verbose debug logging. [boolean] [default: false]
-h, --help Show help [boolean]
Examples:
generate-changelog --codex Generate changelog for a single
eslint-plugin-react-hooks@7.0.1 package using Codex.
generate-changelog --claude react@19.3 Generate changelog entries for
react-dom@19.3 multiple packages using Claude.
generate-changelog --codex Generate changelog for all stable
packages using recorded versions.
```
For example, if no args are passed, the script will print find all the relevant commits affecting packages (defaults to `stablePackages` in `ReactVersions.js`) and format them as a simple markdown list.
```
$ yarn generate-changelog
## eslint-plugin-react-hooks@7.0.0
* [compiler] improve zod v3 backwards compat (#34877) ([#34877](#34877) by [@henryqdineen](https://github.com/henryqdineen))
* [ESLint] Disallow passing effect event down when inlined as a prop (#34820) ([#34820](#34820) by [@jf-eirinha](https://github.com/jf-eirinha))
* Switch to `export =` to fix eslint-plugin-react-hooks types (#34949) ([#34949](#34949) by [@karlhorky](https://github.com/karlhorky))
* [eprh] Type `configs.flat` more strictly (#34950) ([#34950](#34950) by [@poteto](https://github.com/poteto))
* Add hint for Node.js cjs-module-lexer for eslint-plugin-react-hook types (#34951) ([#34951](#34951) by [@karlhorky](https://github.com/karlhorky))
* Add hint for Node.js cjs-module-lexer for eslint-plugin-react-hook types (#34953) ([#34953](#34953) by [@karlhorky](https://github.com/karlhorky))
// etc etc...
```
If `--codex` or `--claude` is passed, the script will attempt to use them to summarize the commit(s) in the same style as our existing CHANGELOG.md.
And finally, for debugging the script you can add `--debug` to see what's going on.
jackpope
approved these changes
Oct 27, 2025
| log(`Summarizer prompt length: ${prompt.length} characters.`); | ||
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| try { | ||
| const raw = await runSummarizer(summarizer, prompt); |
Contributor
There was a problem hiding this comment.
I'm curious what the perf is like here and wonder about batching multiple together into one request. Probably fine for smaller changelogs like eprh, but I wonder if a React release would make it crawl.
One other consideration for follow up is if we can determine its an internal only change, we can avoid generating summaries.
Member
Author
There was a problem hiding this comment.
It took about ~30s for me when I ran it on all packages. I originally started with a single request but it turned out to be very large context-wise as it passes along all the commit message bodies in the prompt. So I opted with batching it per package
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(disclaimer: I used codex to write this script)
Adds a new
yarn generate-changelogscript to simplify the process of writing changelogs. You can use it as follows:For example, if no args are passed, the script will print find all the relevant commits affecting packages (defaults to
stablePackagesinReactVersions.js) and format them as a simple markdown list.If
--codexor--claudeis passed, the script will attempt to use them to summarize the commit(s) in the same style as our existing CHANGELOG.md.And finally, for debugging the script you can add
--debugto see what's going on.