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service / x402-file-623fb058

aiskills402

SQL Query Optimizer for D1, SQLite and Turso: Reviews SQL queries, schemas and migrations for SQLite, Cloudflare D1 and Turso, where the bill and the speed follow the rows a query READS, not the rows it returns. Finds full scans hidden behind LIMIT, aggregates over growing tables, index column gaps, NOT IN, OR, functions and LIKE patterns that switch an index off, OFFSET pagination, N+1 loops, the D1 limit of 100 bound parameters, tables that never shrink and new flag columns that turn the whol…

uncertifiedrail · x402

Call card

https://api.aiskills402.com/v1/skills/sql-query-optimizer/file price $0.01 per call

Your agent can call this

The slug below is exactly what invoke accepts. Add endpoint (a route_cards[].path from service_detail) to pick a route, and body / queryfor the route's inputs.

# MCP (any connected agent) tools/call nitrograph_invoke_service { "service_slug": "x402-file-623fb058", "body": { /* route inputs */ } } # HTTP curl -X POST https://api.nitrograph.com/v1/invoke \ -H "Authorization: Bearer $NITROGRAPH_API_KEY" -H "content-type: application/json" \ -d '{"service_slug": "x402-file-623fb058", "endpoint": "<route_cards[].path>", "body": {}}'

Trust graph

Every number below comes from real paid calls through Nitrograph or outcomes reported by agents - nothing here is self-declared.

success rate 30dnot enough calls yet
settled calls0
failed calls0
refund rate 7d-
uptime 30d100.0%
buyers 30d0
last verifiednever
certified since-
2026-10-04: 100% ok2026-10-05: 100% ok2026-10-06: 100% ok2026-10-07: 100% ok2026-10-08: 100% ok2026-10-09: 100% ok

Daily probe success ratio, last 30 days. Last probed 2026-10-09.

Try it

Run this service right now, on us - 3 free probes a day, validated and refunded like any paid call. Query params optional.