CodeSampleX

Sample

@tiptap/pm 3.11.0: Node

Verified sample for npm @tiptap/pm 3.11.0: Node. The contract ran on node 22 · linux debian/x64 · docker and passed: Node is a class constructor exported by…

sha256:b03861ef2adbe3a42e3ea9c53925aa3c68637330c8bd0cd90d6f51d9c05796b4

This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. How many distinct signing keys filed a passing contract receipt. One is the author alone; more than one means somebody else built it too. A key is self-generated with nothing registered behind it, so it counts keys, not people. MIT-0

Execution evidence

The declared environment and the signed runs are kept apart, so you can see exactly what this sample ran and where.

Evidence basis
Signed contract pass
Verification receipts
1
Signing keys that built it
1
Declared environment node 22.23 linux 24 · ubuntu · glibc 2.39 x64 node 22.23 javascript npm 10

Verification-run environments

Environment Contract Stages Run
node 22 · linux debian/x64 · docker ed25519:c1973797be207ac4 PASS compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS
CONTAINER_RUN · node-typescript@1node:22@sha256:8a34c4ab3ea2…		 2026-09-17

Case

HOW
Goal
verify @tiptap/pm.Node in pkg:npm/%40tiptap/pm@3.11.0
Packages
Symbols
  • @tiptap/pm.Node
Environment
node 22.23.2
Created
2026-09-17T01:05:59Z

Contract

  1. Node is a class constructor exported by @tiptap/pm/model
  2. schema.node creates a Node instance representing a document element
  3. Node properties reflect structural kind, text content, and child count
  4. Node.fromJSON deserializes a JSON object into a valid Node instance
  5. node.toJSON serializes the node hierarchy into a plain JSON object
  6. node.eq performs deep structural equality comparison between nodes
  7. node.cut extracts a slice of the node within the specified character positions
  8. node.forEach iterates over the direct children of the node
  9. Node.fromJSON throws RangeError when node type is unrecognized in schema

Files

  • PROMPT.md
  • csx.json
  • index.mjs
  • package-lock.json
  • package.json
  • spec.json
  • test/contract.mjs

Download the source artifact (tar.gz)

Source

PROMPT.md
Clean-room public code sample — generation instructions

Write a brand-new, minimal, self-contained code sample in this clean-room directory.
Do not copy, paraphrase, or reference any existing project source. Work only from this spec.

A csx.json manifest scaffold already exists. Do not recreate it from memory. Preserve its case.goal, packages and symbols; fill its empty case.contract with exact assertions and correct its environment, commands and verifierAdapter for the files you generate.

Goal: verify @tiptap/pm.Node in pkg:npm/%40tiptap/pm@3.11.0
Kind: HOW

Use EXACTLY these public packages and versions:
  - pkg:npm/%40tiptap/pm@3.11.0
Demonstrate these symbols/APIs:
  - @tiptap/pm.Node

Rules:
  - One focused purpose; the smallest project that proves the goal.
  - Include a contract test (test/contract.*) that runs OFFLINE and exits 0 exactly when the goal behavior works.
  - Pin every dependency with a lockfile so resolution is reproducible.
  - No secrets, credentials, or tokens. No real URLs (only example.com or localhost). No absolute paths.
  - No personal names, emails, company names, or project identifiers of any kind.
  - No binaries and no generated output (node_modules, dist, target, venv, .git, .env).
  - Keep it under 200 files and 256KB packed.
csx.json
{"case":{"caseId":"case:sha256:8bd1e30d28dc574fc879398c3502d5ce4924d4fbda004cd2d3b10e5d872d1788","contract":["Node is a class constructor exported by @tiptap/pm/model","schema.node creates a Node instance representing a document element","Node properties reflect structural kind, text content, and child count","Node.fromJSON deserializes a JSON object into a valid Node instance","node.toJSON serializes the node hierarchy into a plain JSON object","node.eq performs deep structural equality comparison between nodes","node.cut extracts a slice of the node within the specified character positions","node.forEach iterates over the direct children of the node","Node.fromJSON throws RangeError when node type is unrecognized in schema"],"goal":"verify @tiptap/pm.Node in pkg:npm/%40tiptap/pm@3.11.0","kind":"HOW","packages":["pkg:npm/%40tiptap/pm@3.11.0"],"schemaVersion":1,"symbols":["@tiptap/pm.Node"]},"contractCommand":["node","test/contract.mjs"],"environment":{"arch":"x64","distro":"ubuntu","ecosystem":"npm","executionContext":"node","language":"javascript","libc":"glibc","libcVersion":"2.39","os":"linux","osVersionBucket":"24","packageManager":"npm","packageManagerVersion":"10.9.8","runtime":"node","runtimeVersion":"22.23.2","schemaVersion":1},"license":"MIT-0","packages":["pkg:npm/%40tiptap/pm@3.11.0"],"schemaVersion":1,"subject":"pkg:npm/%40tiptap/pm@3.11.0","symbols":["@tiptap/pm.Node"],"verifierAdapter":"node-typescript@1"}
index.mjs
import { Node } from '@tiptap/pm/model';
import { schema } from '@tiptap/pm/schema-basic';

export { Node, schema };
export default Node;
package-lock.json
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      "license": "MIT",
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      }
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      "dependencies": {
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        "prosemirror-state": "^1.0.0",
        "prosemirror-transform": "^1.1.0"
      }
    },
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      "license": "MIT",
      "engines": {
        "node": ">=6"
      }
    },
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      "version": "1.3.4",
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      "license": "MIT"
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      "license": "MIT"
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}
package.json
{
  "name": "sample-tiptap-pm-node",
  "version": "1.0.0",
  "type": "module",
  "private": true,
  "dependencies": {
    "@tiptap/pm": "3.11.0"
  }
}
spec.json
{
  "schemaVersion": 1,
  "goal": "verify @tiptap/pm.Node in pkg:npm/%40tiptap/pm@3.11.0",
  "kind": "HOW",
  "packages": [
    "pkg:npm/%40tiptap/pm@3.11.0"
  ],
  "symbols": [
    "@tiptap/pm.Node"
  ]
}
test/contract.mjs
import assert from 'node:assert/strict';
import { Node, schema } from '../index.mjs';

// 1. Node is a class constructor exported by @tiptap/pm/model
{
  assert.equal(typeof Node, 'function');
}

// 2. schema.node creates a Node instance representing a document element
{
  const textNode = schema.text('Hello World');
  const paragraph = schema.node('paragraph', null, [textNode]);
  const doc = schema.node('doc', null, [paragraph]);

  assert.ok(textNode instanceof Node);
  assert.ok(paragraph instanceof Node);
  assert.ok(doc instanceof Node);
}

// 3. Node properties reflect structural kind, text content, and child count
{
  const textNode = schema.text('Sample text');
  const paragraph = schema.node('paragraph', null, [textNode]);
  const doc = schema.node('doc', null, [paragraph]);

  assert.equal(doc.isBlock, true);
  assert.equal(doc.isInline, false);
  assert.equal(doc.isText, false);
  assert.equal(paragraph.isBlock, true);
  assert.equal(textNode.isInline, true);
  assert.equal(textNode.isText, true);

  assert.equal(doc.textContent, 'Sample text');
  assert.equal(paragraph.textContent, 'Sample text');
  assert.equal(textNode.textContent, 'Sample text');
  assert.equal(doc.childCount, 1);
  assert.ok(doc.child(0).eq(paragraph));
}

// 4. Node.fromJSON deserializes a JSON object into a valid Node instance
{
  const json = {
    type: 'doc',
    content: [
      {
        type: 'paragraph',
        content: [
          {
            type: 'text',
            text: 'Deserialized content'
          }
        ]
      }
    ]
  };
  const doc = Node.fromJSON(schema, json);
  assert.ok(doc instanceof Node);
  assert.equal(doc.type.name, 'doc');
  assert.equal(doc.textContent, 'Deserialized content');
}

// 5. node.toJSON serializes the node hierarchy into a plain JSON object
{
  const textNode = schema.text('Serialized');
  const p = schema.node('paragraph', null, [textNode]);
  const doc = schema.node('doc', null, [p]);

  const json = doc.toJSON();
  assert.equal(json.type, 'doc');
  assert.equal(Array.isArray(json.content), true);
  assert.equal(json.content[0].type, 'paragraph');
  assert.equal(json.content[0].content[0].text, 'Serialized');
}

// 6. node.eq performs deep structural equality comparison between nodes
{
  const doc1 = schema.node('doc', null, [
    schema.node('paragraph', null, [schema.text('Match')])
  ]);
  const doc2 = schema.node('doc', null, [
    schema.node('paragraph', null, [schema.text('Match')])
  ]);
  const doc3 = schema.node('doc', null, [
    schema.node('paragraph', null, [schema.text('Different')])
  ]);

  assert.equal(doc1.eq(doc2), true);
  assert.equal(doc1.eq(doc3), false);
}

// 7. node.cut extracts a slice of the node within the specified character positions
{
  const p = schema.node('paragraph', null, [schema.text('Antigravity CodeSampleX')]);
  const doc = schema.node('doc', null, [p]);
  const cutDoc = doc.cut(1, 12);

  assert.ok(cutDoc instanceof Node);
  assert.equal(cutDoc.textContent, 'Antigravity');
}

// 8. node.forEach iterates over the direct children of the node
{
  const p1 = schema.node('paragraph', null, [schema.text('First')]);
  const p2 = schema.node('paragraph', null, [schema.text('Second')]);
  const doc = schema.node('doc', null, [p1, p2]);

  const collected = [];
  doc.forEach((child, offset, index) => {
    collected.push({ text: child.textContent, offset, index });
  });

  assert.equal(collected.length, 2);
  assert.equal(collected[0].text, 'First');
  assert.equal(collected[0].index, 0);
  assert.equal(collected[1].text, 'Second');
  assert.equal(collected[1].index, 1);
}

// 9. Node.fromJSON throws RangeError when node type is unrecognized in schema
{
  assert.throws(
    () => Node.fromJSON(schema, { type: 'unknown_type' }),
    { name: 'RangeError' }
  );
}

console.log('All contract assertions passed.');

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