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Based on https://code.claude.com/docs/en/hooks-guide#auto-format-code-after-edits Opted to avoid the example's use of `npx` to avoid internet usage. The formatting fails silently if the `prettier` package is not installed.
This is now completed by Claude hooks.
The lint fix script also verifies lint rules. There is no need to run both scripts.
dcalhoun
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Feb 6, 2026
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| # Format JavaScript code | ||
| make format |
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Removed as redundant of new formatting hook.
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| # Verify linting passes | ||
| make lint-js |
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Removed as redundant of make lint-js-fix above.
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What?
Adds a
.claude/settings.jsonfile with a PostToolUse hook that automatically runs Prettier on files after Claude Code edits them. Also simplifies the CLAUDE.md pre-commit checklist since formatting is now handled automatically.Why?
The project's CLAUDE.md pre-commit checklist requires running
make format(Prettier) andmake lint-js-fix(ESLint) before every commit. Without automation, formatting drift can accumulate during a Claude Code session, leading to noisy diffs and extra manual steps. This hook ensures every file Claude edits is immediately formatted, keeping code consistent without manual intervention.How?
.claude/settings.json: Adds aPostToolUsehook that triggers after everyEditorWritetool call. The hook extracts the edited file path from the tool input viajqand runs./node_modules/.bin/prettier --writeon that single file. Based on Claude examples.CLAUDE.md: Removesmake formatandmake lint-jsfrom the pre-commit checklist since formatting is now automatic. Onlymake lint-js-fixremains (ESLint is too slow for per-edit hooks and can make semantic changes).Design decisions
./node_modules/.bin/prettier) instead ofnpx— avoids any risk of downloading packages from the internet.jqis missing ornode_modulesisn't installed, Prettier fails silently and Claude continues. Prettier also respects.prettierignore.Testing Instructions
Not important that we test these scripting changes, but here are some ideas:
ios/) — confirm Prettier skips it gracefully.make lint-jsto confirm no formatting regressions.