Fix TypeScript Errors

VerifiedSafe

Fixes TypeScript errors by identifying root causes, applying minimal fixes (preferring proper types over `any` or `@ts-ignore`), and verifying compilation with `tsc --noEmit`. Helps maintain a clean TypeScript codebase.

Sby Skills Guide Bot
DevelopmentIntermediate
1306/2/2026
Claude Code
#typescript#error-fixing#type-checking#static-analysis

Recommended for

Our review

This skill fixes TypeScript errors by identifying root causes, applying minimal corrections, and verifying compilation succeeds.

Strengths

  • Automated error detection via the TypeScript compiler
  • Encourages precise fixes and avoids workarounds like `any`
  • Iterative verification process until zero errors
  • Guides toward specific types and typed assertions

Limitations

  • Depends on TypeScript configuration; errors may be hidden if config is too lenient
  • Cannot automatically fix complex structural mismatches; requires human understanding
  • Does not cover runtime errors that static typing does not catch
When to use it

When you need to resolve TypeScript compilation errors in an existing codebase.

When not to use it

When the issue is a logic bug rather than a type error, or when you need to design new complex types from scratch.

Security analysis

Safe
Quality score90/100

The skill uses only safe commands: 'npx tsc --noEmit' for type checking, along with Read and Edit tools. There is no destructive or exfiltrating behavior, no network requests beyond npm if tsc is not installed, and no execution of arbitrary code.

No concerns found

Examples

Fix all TypeScript errors in the project
Run `npx tsc --noEmit` to check for TypeScript errors, then fix each error one by one with minimal changes. Continue until no errors remain.
Fix type error in a specific file
Fix the TypeScript errors in the file src/services/user.ts. Use proper type annotations instead of `any` or `@ts-ignore`.

name: fix-types description: Fix TypeScript errors user-invocable: true allowed-tools: Bash(npx tsc *), Read, Edit

Fix TypeScript Errors

Check for Errors

npx tsc --noEmit

Instructions

Review the TypeScript errors above and fix each one:

  1. Identify the root cause - Understand why the type error is occurring
  2. Fix with minimal changes - Don't over-engineer; make the smallest change that correctly resolves the issue
  3. Verify the fix compiles - After fixing, re-run the type check

Guidelines

  • Prefer fixing the actual type issue over using any or @ts-ignore
  • If a type assertion is needed, use as with a specific type rather than as any
  • Consider whether the error reveals a real bug vs. a type definition gap
  • Update interfaces/types if the shape has legitimately changed

Verification

After fixing all errors, run the type check again to confirm:

npx tsc --noEmit

Continue until there are no type errors remaining.

Related skills