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SKILL.md
npx skills add akillness/jeo-skills --skill migrate-to-shoehorn
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.
npx skills add akillness/jeo-skills --skill migrate-to-shoehorn
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.
This skill is imported from mattpocock/skills (MIT) and is model-invoked upstream.
as type assertions to @total-typescript/shoehorn.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.
Test code only. Never use shoehorn in production code.
Problems with as in tests:
as unknown as Type) for intentionally wrong dataBefore:
After:
as Type → fromPartial()Before:
After:
as unknown as Type → fromAny()Before:
After:
| Function | Use case |
|---|---|
fromPartial() | Pass partial data that still type-checks |
fromAny() | Pass intentionally wrong data (keeps autocomplete) |
fromExact() | Force full object (swap with fromPartial later) |
Gather requirements - ask user:
as assertions causing problems?Install and migrate:
npm i @total-typescript/shoehornas assertions: grep -r " as [A-Z]" --include="*.test.ts" --include="*.spec.ts"as Type with fromPartial()as unknown as Type with fromAny()@total-typescript/shoehornmattpocock/skills skills/misc/migrate-to-shoehorn/SKILL.md (commit 3cca18b, MIT).agent-skills/skill-standardization/SKILL.md.agent-skills/skill-standardization/scripts/validate_skill.shimport { fromPartial } from "@total-typescript/shoehorn";
it("gets user by id", () => {
getUser(
fromPartial({
body: { id: "123" },
}),
);
});getUser({ body: { id: "123" } } as Request);import { fromPartial } from "@total-typescript/shoehorn";
getUser(fromPartial({ body: { id: "123" } }));getUser({ body: { id: 123 } } as unknown as Request); // wrong type on purposeimport { fromAny } from "@total-typescript/shoehorn";
getUser(fromAny({ body: { id: 123 } }));