Function createBlock

packages/mcp/src/tools/writing.ts:406–436

(
  spec: { type: string; content?: string; metadata?: Record<string, unknown> },
  index: number
)

]

function createBlock(
  spec: { type: string; content?: string; metadata?: Record<string, unknown> },
  index: number
): DeepnoteBlock {
  const base = {
    id: randomUUID(),
    blockGroup: randomUUID(),
    sortingKey: generateSortingKey(index),
    type: spec.type,
    content: spec.content !== undefined ? spec.content : '',
    metadata: spec.metadata !== undefined ? spec.metadata : {},
  }

  // Add execution fields for executable blocks
  const candidate = executableBlockTypeSet.has(spec.type)
    ? {
        ...base,
        executionCount: null,
        outputs: [],
      }
    : base

  const parsed = deepnoteBlockSchema.safeParse(candidate)
  if (!parsed.success) {
    throw new Error(
      `Invalid block spec for type "${spec.type}": ${parsed.error.issues[0]?.message ?? 'schema validation failed'}`
    )
  }

  return parsed.data
}

async function handleCreate(args: Record<string, unknown>) {
  const parsedArgs = createArgsSchema.safeParse(args)