# rikukissa/typehole

TypeScript development tool for Visual Studio Code that helps you automate creating the initial static typing for runtime values

Repository: https://github.com/rikukissa/typehole
Canonical: https://ross.abutalabs.com/products/typehole
Homepage: https://marketplace.visualstudio.com/items?itemName=rikurouvila.typehole
Language: TypeScript
License: MIT
License Family: permissive
Topics: typescript, vscode, ast, extension
Last push: 2023-03-14T18:45:53+00:00

## Health v2 (maintenance only)
Score: 23/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 0, release rhythm 8, longevity 100
- inputs: {"age_days": 1960, "days_push": 1268, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1049, forks 13 (observed 2026-08-28T04:03:22.711127+00:00)

## What it is
Typehole is a Visual Studio Code extension that automatically generates TypeScript interfaces from runtime values. It bridges serializable values from a running Node.js or browser application back into the editor, where they are turned into static type definitions.

## Use cases
- generate typescript types from api responses
- create interfaces for runtime values automatically
- type unknown json payloads in typescript
- infer static types from javascript module values
- capture runtime data samples as type definitions in vscode

## When to choose
- you need types for JSON-serializable API responses or payloads
- you work in VS Code with TypeScript and want to avoid hand-writing interfaces
- you want to sample runtime values repeatedly to augment types

## When to avoid
- you need types for non-serializable values like classes or functions
- you don't use Visual Studio Code
- you need a fully mature, production-hardened tool - the project is explicitly experimental and releases stopped in 2023

## Facets
- artifact type: plugin
- maturity: experimental
- function: developer-tools, type-system, serialization
- domain: developer-tools, programming-languages, web-development
- platform: editor-plugin, browser, cross-platform
- tags: typescript, vscode-extension, static-typing, runtime-values, code-generation, ast, nodejs

## Member repositories
- rikukissa/typehole (main) score 23

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:03:22.711127+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T07:00:33.191319+00:00, confidence not recorded.
  - readme: https://github.com/rikukissa/typehole (fetched 2026-08-28T04:03:22.711127+00:00, sha 25a4793ada94)
  - homepage: https://marketplace.visualstudio.com/items?itemName=rikurouvila.typehole (fetched 2026-08-29T13:01:55.443632+00:00, sha 0942d8abb9d2)
  - registry_npm: https://registry.npmjs.org/typehole (fetched 2026-08-29T13:01:55.452990+00:00, sha 27ab78679f26)
- Data as of 2026-08-30T08:39:29.467469+00:00.