Using Claude.ai to Diagnose Bolt Problems

The Loop Problem

Every experienced Bolt user eventually hits the loop: Bolt fixes one thing, breaks another, fixes that, re-breaks the first. The AI is trying to satisfy conflicting constraints it can no longer see clearly due to accumulated context.

The solution is not more Bolt prompts. The solution is stepping outside Bolt to get a clear diagnosis.

When to Bring in Claude

Bring Claude.ai into the debugging process when:

• Bolt has attempted the same fix 3+ times without success
• An error message is appearing that Bolt doesn't seem to understand
• You're seeing behavior that contradicts what the code appears to do
• Bolt's most recent fix introduced a new unrelated bug
• You genuinely don't understand why something isn't working

How to Transfer Context from Bolt to Claude

Claude can't see your Bolt project directly. You need to provide context explicitly. The most effective approach is a diagnostic package:

The Diagnostic Package Format

I'm using Bolt.new to build [brief project description].

PROBLEM:
[Describe the exact symptom — what you see vs. what you expect]

ERROR MESSAGE (if any):
[Paste the full error message, including stack trace]

RELEVANT FILES:
[Paste the contents of the 2-4 files most relevant to the problem]

WHAT BOLT HAS TRIED:
[List the last 3-5 things Bolt changed in its fix attempts]

QUESTION:
What is the actual root cause, and what is the minimal correct fix?

This format gives Claude everything it needs to provide a precise, actionable diagnosis rather than generic suggestions.

Analyzing a Bolt Chat History

If you have a long Bolt conversation that's gone sideways, you can copy the conversation history and ask Claude to review it:

Here is the recent conversation from my Bolt.new session. I'm having a problem
with [describe problem]. Please:
1. Identify where the problem was introduced
2. Explain what the root cause is
3. Describe the minimal fix — ideally a single targeted change
4. Flag any other issues in the code that should be addressed separately

[Paste conversation history]

Claude reads the history as a debugging trace — it can often pinpoint the exact prompt where a bad assumption was made or where a working state was broken.

Common Bolt Problem Patterns and Claude Diagnoses

Pattern 1: State Updates Not Reflecting in UI

Symptom: Data changes in the database but the UI doesn't update.

What to give Claude:

The component reads data via this React Query hook: [paste hook]
The mutation that updates data: [paste mutation]
The component that renders: [paste component]
After mutation succeeds, the list doesn't re-fetch.

Claude will typically identify a missing query invalidation or an incorrect query key.

Pattern 2: Supabase RLS Blocking Legitimate Requests

Symptom: Authenticated user gets empty results or 403 errors.

What to give Claude:

Supabase query returning empty array for authenticated user:
[paste query code]

RLS policy on this table:
[paste policy SQL]

Auth state when query runs:
user.id = "[paste user ID format]"

Claude will identify mismatches between the RLS policy condition and the actual auth state.

Pattern 3: TypeScript Errors After Bolt Refactor

Symptom: Build errors after Bolt changed a component or type definition.

What to give Claude:

TypeScript error:
[paste full error]

The type that changed:
[paste type definition]

The component using it:
[paste component]

Claude identifies type mismatches and provides corrected type signatures or component usage.

Writing the Fix Back to Bolt

Once Claude identifies the fix, bring it back to Bolt precisely:

The root cause of the issue is [Claude's diagnosis].
Make the following specific change:
[Describe the exact change Claude recommended]
Only modify the files necessary for this fix. Do not refactor anything else.

The "do not refactor anything else" instruction is critical — it prevents Bolt from making well-intentioned but scope-expanding changes that introduce new issues.

Key Takeaways

• When Bolt loops on a problem 3+ times, stop prompting and switch to Claude for diagnosis
• The diagnostic package — problem, error, relevant files, fix history — gives Claude what it needs for accurate analysis
• Claude can analyze a Bolt conversation history to identify where the problem was introduced
• Bring fixes back to Bolt with precise, scoped instructions to avoid compounding the problem

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Try It Yourself: Next time you encounter a Bolt error, before prompting Bolt to fix it, paste the error message and relevant file into Claude with the question: "What is the root cause of this error and what is the minimal fix?" Compare Claude's diagnosis to what Bolt would have tried. How do they differ?