Migrate To Shoehorn
Migrate To Shoehorn is an agent skill (a SKILL.md file) from mattpocock/skills. Migrate test files from as type assertions to @total-typescript/shoehorn. It works with Claude Code, Codex, Cursor, Gemini CLI, GitHub Copilot and OpenCode and has 303,491 GitHub stars across a repository of 15 listed skills.
github.com/mattpocock/skills/skills/misc/migrate-to-shoehorn (opens in a new tab)
Data as of from the GitHub API and skills.sh; description from the skill's SKILL.md. Report an error
- Multi-skill repo
- Plugin marketplace
- Testing & QA
- Active
Add this skill
Claude
This repository is a Claude Code plugin marketplace. In Claude Code:
/plugin marketplace add mattpocock/skills
/plugin install mattpocock-skills@mattpocockIn the Claude apps, zip the migrate-to-shoehorn folder and upload it under Customize > Skills > + > Upload a skill (code execution must be on).
ChatGPT / Codex
Codex reads skills from .agents/skills/ in a repo or ~/.agents/skills/ for every project:
git clone --depth 1 https://github.com/mattpocock/skills.git
cp -r skills/skills/misc/migrate-to-shoehorn .agents/skills/migrate-to-shoehorn # repo; ~/.agents/skills for all projectsStandalone skills also load in the ChatGPT desktop app.
Cursor
Cursor loads skills from .cursor/skills/ (or ~/.cursor/skills/) and also reads .claude/skills/:
git clone --depth 1 https://github.com/mattpocock/skills.git
cp -r skills/skills/misc/migrate-to-shoehorn .cursor/skills/migrate-to-shoehorn # project; ~/.cursor/skills for all projectsSource (checked Oct 7, 2026): code.claude.com/docs/en/skills (opens in a new tab), code.claude.com/docs/en/plugin-marketplaces (opens in a new tab), support.claude.com/en/articles/12512180-using-skills-in-claude (opens in a new tab), learn.chatgpt.com/docs/build-skills (opens in a new tab), cursor.com/docs/context/skills (opens in a new tab)
What this skill does
Migrate test files from as type assertions to @total-typescript/shoehorn. Use when user mentions shoehorn, wants to replace as in tests, or needs partial test data. shoehorn lets you pass partial data in tests while keeping TypeScript happy. It replaces as assertions with type-safe alternatives.
When it triggers
- Use when user mentions shoehorn, wants to replace as in tests, or needs partial test data.
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How do I install the Migrate To Shoehorn skill?
In Claude Code, run /plugin marketplace add mattpocock/skills and then /plugin install mattpocock-skills@mattpocock. For Codex or Cursor, copy the migrate-to-shoehorn folder into .agents/skills/ or .cursor/skills/.
Is the Migrate To Shoehorn skill free?
Yes. The repository is open source under the MIT license.
Is Migrate To Shoehorn maintained?
The repository's most recent commit was on Oct 19, 2026. Its latest release is v1.3.1. appsgit only lists skills from repositories with a commit in the last six months.