Claude for debugging react, done properly.
The tested prompt, the codes that help, and the setup software development pros run. Copy, adapt, ship.
React bugs are notoriously hard to debug — infinite re-renders, stale closures, hydration mismatches. Error messages point to the wrong component and stack traces are useless.
Three reasons this actually lands.
The prompt, the codes, the fit. Each one on its own is a nice-to-have. Together, they change the workflow.
One tested prompt, copy-paste ready. Rules baked in, placeholders marked, tone locked down. No prompt-engineering trial runs, no back-and-forth.
Prefix with REASON, V=2, REFINE for compound effects. Each code is a documented technique, not a magic word.
Tuned for software development workflows. Not a generic template, and not another "you are a helpful assistant" hack.
Without the pattern vs with it.
What the day looks like when you keep winging the prompt, and what it looks like when you stop.
Generic prompt. Claude writes something that could be about anyone, in any industry, from anywhere. Sounds like a template because it is one.
The CLSkills prompt with placeholders for your context. Claude writes it like a specialist who actually knows the work. Publishable after one edit pass.
You paste, Claude answers, you rewrite, you paste again. Ten minutes of back-and-forth per output. Three hours across a batch of five.
Prompt loaded once. You feed the specifics, Claude returns the finished output. Two minutes per, twenty across five. Same tone, same structure, every time.
Middle-of-the-road copy that reads AI-flavoured. Recipients notice. Response rates stay low. You end up rewriting most of it anyway.
Claude identifies the root cause (not just symptoms), explains the underlying React concept, and gives you a targeted fix. You also learn the pattern name so you recognize it next time.
Copy this, replace the placeholders, ship.
Debug this React issue. Environment: React [VERSION], Next.js [VERSION IF APPLICABLE] What should happen: [EXPECTED BEHAVIOR] What actually happens: [ACTUAL BEHAVIOR] Error message (if any): [PASTE EXACT ERROR] When it started: [WHAT CHANGED RECENTLY] Code: ```tsx [PASTE THE RELEVANT COMPONENT(S)] ``` Steps: 1. Identify the root cause (not just the symptom) 2. Explain WHY this happens (so I learn, don't just fix) 3. Show the fix with minimal changes 4. Flag any other issues you spot in this code 5. If this is a common React gotcha, name the pattern so I can recognize it next time
Replace the [BRACKETED] placeholders with your context.
Stack these prefixes for compound gains.
Prepend one or more of these to the prompt above. Each code is documented on its own page with before and after examples.
Every prompt, once.
The Cheat Sheet is every tested code, with a before and an after.
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