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TypeScript Playground Shows Inconsistent `any` for `unist-util-visit` type

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Assessment

Difficulty
3/5
Estimated time
1-2 days
Newbie friendliness
45/100
Issue type
Bug
Clarity
Clearly specified
Activity status
Stale
Tech stack
javascript, typescript
Domain
tooling

Research direction

Reproduce the JavaScript example in the linked TypeScript Playground and compare it with the linked reproduction repository and local VS Code result. Investigate how the Playground handles the imported declaration types and callback inference; done means the callback parameter is reported as mdast.Image rather than any.

Written by the indexing model from the issue text.

Description

First of all, thanks so much for the TypeScript Playground and all other TS tooling, amazing effect on robustness of JS code 🙌

In this issue comment in unist-util-visit, I discovered some inconsistent behavior in the TypeScript Playground:

Actual

In the TypeScript Playground, the type of node in the callback passed to unist-util-visit is any

Playground

/**
 * @import {Root} from 'mdast'
 */

import { visit } from "unist-util-visit";

// TS Playground only: Import `@types/mdast` for JSDoc type imports
import 'mdast';

export function myPlugin() {
  /**
   * @param {Root} tree
   * @returns {undefined}
   */
  return function (tree) {
    visit(tree, 'image', function (node) {
                                // ^? any
    })
  }
}

Expected

...where it is mdast.Image in a local VS Code:

Reproduction repo: https://github.com/karlhorky/repro-unist-util-visit-node-any

/**
 * @import {Root} from 'mdast'
 */

import { visit } from "unist-util-visit";

export function myPlugin() {
  /**
   * @param {Root} tree
   * @returns {undefined}
   */
  return function (tree) {
    visit(tree, 'image', function (node) {
                                // ^? mdast.Image
    })
  }
}

Screenshot 2024-07-22 at 11 13 14

Dominant language
TypeScript
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