AGENTS.md

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+## In General
+
+### Prerequisites
+
+Use `npm i` or `npm ci` to install all dependencies.
+
+### Testing
+
+Use `npm run verify` to verify that your changes pass TypeScript's checks.
+
+### Formatting
+
+Use `npm run prettier` to ensure your formatting matches the expected format. Failing to do so will cause CI failure.
+
+## WebUI Specific
+
+The translation system is designed around additions being made to `static/webui/translations/en.js`. They are copied over for translation via `npm run update-translations`. DO NOT produce non-English strings; we want them to be translated by humans who can understand the full context.