
· Asep Alazhari · Development
D1_ERROR: too many SQL variables? Fix the 100-Bind Limit
D1_ERROR: too many SQL variables means one statement binds over 100 values. See the 100 plus 5 arithmetic, a chunking fix, and a db.batch test I ran locally.

D1_ERROR: too many SQL variables means one statement binds over 100 values. See the 100 plus 5 arithmetic, a chunking fix, and a db.batch test I ran locally.

Log to D1 with ctx.waitUntil without slowing responses. Measured 306 ms vs 1.7 ms, plus why logs go missing and the Illegal invocation fix. See the code.

I used Wrangler and the Cloudflare MCP server together in Claude Code for months. Here is what each one does best, plus a fix for multi-account login pain.

Cloudflare acquired Astro in January 2026. Astro 6 is the first release of that edge-first era. Here is what changed when I upgraded my own site from v5.