Individual skill

replace-unsafe-typescript-assertions

Use when TypeScript tests use unsafe any or as assertions for partial or intentionally invalid fixtures. Not for production source or manifest edits. Test files only.

.devin/skills/replace-unsafe-typescript-assertions/SKILL.md

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# Replace unsafe TypeScript assertions

## Contract

| Field | Bound contract |
|---|---|
| Trigger | TypeScript tests use unsafe assertions (`value as Type`, `value as unknown as Type`) for partial or intentionally invalid fixtures. |
| Authority | Reversible local: writes only the named test files and their import lines; rollback is version control. Does not modify production files, package manifests, or lockfiles. No remote mutation. |
| Side effect | Eligible assertions are replaced and required imports are added. |
| Done | Every eligible assertion uses the intent-matching coercion function and the project typecheck and test suite both pass. |

## Inputs

- Target test file or bounded directory (required).