SDKProof — Prisma 7 AI-Readiness Scorecard

Prisma 7 is 80% ready for AI coding agents.

Claude Opus 4.8 writes Prisma's query API flawlessly — and even the new $extends. But it still reaches for Prisma 6's setup code that no longer compiles: the old constructor, the removed datasources option, and $use middleware. 3 of 15 real tasks fail to type-check against the installed package.

80/100

Agent-readiness

12 compile clean 3 fail type-check

Model: claude-opus-4-8 Tasks: 15 Method: tsc against real installed package Run: 2026-07-17

✗Constructing the clientTS2554

Agent wrote (Prisma 6)

const prisma = new PrismaClient()

Prisma 7

import { PrismaPg } from "@prisma/adapter-pg"

const adapter = new PrismaPg({
  connectionString: process.env.DATABASE_URL,
})
const prisma = new PrismaClient({ adapter })

error TS2554: Expected 1 arguments, but got 0.

Why: Prisma 7 dropped the bundled query engine — the constructor now requires a driver adapter. A bare new PrismaClient() no longer type-checks.

✗Setting the datasource URLTS2353

Agent wrote (Prisma 6)

new PrismaClient({
  datasources: {
    db: { url: process.env.DATABASE_URL },
  },
})

Prisma 7

// the URL now flows through the adapter
const adapter = new PrismaPg({
  connectionString: process.env.DATABASE_URL,
})
new PrismaClient({ adapter })

error TS2353: Object literal may only specify known properties, and 'datasources' does not exist in type 'PrismaClientOptions'.

Why: the datasources constructor option was removed. The connection string is configured on the driver adapter instead.

✗Logging query duration (middleware)TS2339

Agent wrote (Prisma 6)

prisma.$use(async (params, next) => {
  const start = Date.now()
  const result = await next(params)
  console.log(Date.now() - start)
  return result
})

Prisma 7

const db = prisma.$extends({
  query: {
    async $allOperations({ args, query }) {
      const start = performance.now()
      const res = await query(args)
      console.log(performance.now() - start)
      return res
    },
  },
})

error TS2339: Property '$use' does not exist on type 'PrismaClient'.

Why: $use middleware was removed in favor of client extensions ($extends). The model knows $extends elsewhere — it just defaults to the old middleware for this task.

Prisma 7 is 80% ready for AI coding agents.

3 things the agent gets wrong

What it gets right — 12 of 15

The query surface is solid.

The version-drift gap

How this was measured

SDKs shipping breaking majors — scoring soon

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