Launching today

D1 Migration Guard

Launching today

Catch D1 migration bugs before wrangler apply does

2 followers

Catch D1 migration bugs before wrangler apply does

2 followers

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d1-migration-guard is a free, zero-dependency CLI that catches common Cloudflare D1 migration problems before wrangler d1 migrations apply does. It checks numbering, database config, destructive SQL, and trigger definitions that break Wrangler's SQL splitter. It only reads local files—never Wrangler or your database. MIT licensed, no signup, telemetry, or paid tier. Built to catch real, still-open Wrangler bugs.

Free

Launch tags:Developer Tools•GitHub

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Framer AI AgentsDesign and publish professional sites with AI

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Hey Product Hunt — I built this after noticing Cloudflare's own D1/Wrangler issue tracker had several long-open, unfixed reports of migrations silently doing the wrong thing (bad ordering, missing config, destructive SQL with no warning). Wrangler doesn't check for any of this before `apply`, so I wrote a small local-only CLI that does, and made it free because it's a narrow, real gap, not a business on its own. Feedback (and bug reports against your own migration setups) genuinely welcome — this is a side project, not a company, so I'm mostly looking to make it actually useful to people who hit these bugs before they do.

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13h ago