`noflake update`

Read your recent code changes, identify affected tests, and patch them automatically.

🚧 Coming in v1.0

Usage

npx noflake update [options]

Options

Flag	Description	Default
`--ref <ref>`	Git ref to diff against	`HEAD~1`
`--staged`	Only diff staged changes (for pre-commit hooks)	`false`
`--auto`	Auto-commit the updated test files	`false`

How it works

Diff — Reads git diff since the specified ref (or staged changes)
Analyze — Identifies which test files are affected by the code changes
Patch — Sends the diff + existing tests to Claude, gets updated test code
Verify — Runs the patched tests to confirm they pass
Commit (with --auto) — Auto-commits the updated tests

Git Hook Integration

When you run noflake init --hook, a post-commit hook is installed that automatically runs:

#!/bin/sh
# NoFlake auto-update hook
npx noflake update --ref HEAD~1 --auto

This means every time you commit, your tests automatically update to match your code changes. Zero friction.

Example (preview)

$ npx noflake update

🔄 NoFlake — Update Tests

🔍 Reading changes...
✅ Found changes in 3 files

🔍 Scanning codebase context...
✅ Context loaded

🔧 Identifying affected tests and patching...
  ✅ user-login-flow (patched)
  ✅ dashboard-crud-operations (patched)
  ⏭️  api-auth-guard (no changes needed)

✅ 2 tests updated, 1 unchanged