zod schema validation

Parse at the boundary, read the failure, and let the schema be the type.

For

zod@4.5.4

Verified

2026-09-07, 7 examples executed

Package

@modootoday/pmcp-zod-schema-validation@1.2.0

What it covers

• When to reach for it
• Parse or branch, not both
• Unknown keys are dropped, not rejected
• Read the failure, do not stringify it
• Let the schema be the type
• Coerce only where the wire is untyped
• What this skill does not cover

One example from this skill

This is the skill's own text, not a summary of it. It runs: that is what verifying means here.

import { z } from "zod";
import assert from "node:assert/strict";

const Config = z.object({ port: z.number(), host: z.string() });

// safeParse when the caller answers for the failure.
const result = Config.safeParse({ port: "8080", host: "localhost" });
assert.equal(result.success, false);

// parse when there is no answer but to stop.
assert.deepEqual(Config.parse({ port: 8080, host: "localhost" }), {
  port: 8080,
  host: "localhost",
});

Getting it

With a subscription:

npx -y @modootoday/pmcp login
npx -y @modootoday/pmcp install @modootoday/pmcp-zod-schema-validation

It installs as a dev dependency of your project, and the MCP server finds it there like any other skill.