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you-might-not-need-a-callback

Identify and fix unnecessary useCallback usage across React codebases.

Updated Apr 16, 2026
Search Tags:#performance#react#refactor#code-quality#analyze#usecallback
One-click install
npx skills add https://github.com/tunacosgun/sim --skill you-might-not-need-a-callback
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: you-might-not-need-a-callback
Source: https://github.com/tunacosgun/sim/tree/main/.agents/skills/you-might-not-need-a-callback
Command: npx skills add https://github.com/tunacosgun/sim --skill you-might-not-need-a-callback

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

The anti-patterns around useCallback can cause unnecessary memoization overhead, stale closures, and reduced maintainability; this skill analyzes code to identify and fix these patterns to improve readability and performance.

Core Features & Use Cases

  • Analyze common useCallback anti-patterns in a React codebase.
  • Propose or apply durable refactors to stabilize callbacks and deps.
  • Use in scenarios such as components wrapped in React.memo, or hooks relying on stable references.

Quick Start

Provide a scope and fix flag to start analysis and optional automatic fixes.

Frequently Asked Questions about you-might-not-need-a-callback

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
When do I actually need useCallback in React components?▼

Analyze React component files, hooks, and custom patterns within a specific scope or PR to identify unnecessary memoization, evaluating dependencies and closures to propose durable refactors.

How do I fix unnecessary useCallback usage in my React codebase?▼

Analyze component files, hooks, and custom patterns within a specific directory or PR to identify unnecessary memoization, evaluating dependencies and closures to propose durable refactors or apply patches.

Does useCallback always improve React performance?▼

No, useCallback can reduce performance by adding memoization overhead. Analyzing dependencies and closures determines when memoization is beneficial versus when it degrades readability and speed.

Can I automatically refactor useCallback anti-patterns in a pull request?▼

Yes, by providing a scope and a fix flag, the analysis evaluates dependencies and closures across the PR to output concrete suggestions or apply patches that stabilize callbacks durably.

What are common useCallback anti-patterns causing stale closures?▼

Common anti-patterns include wrapping functions in useCallback without checking dependencies, which causes stale closures and unnecessary memoization overhead that reduces code maintainability.

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