Fudge can investigate your theme code

Drop-in CRO upgrades
Diagnostics

AI Shopify theme code investigation — diagnoses why specific issues exist in your theme code (canonicals, cart, performance) and writes the fix.

Try this prompt

Investigate why my collection pages don't have canonical tags. Find the cause and fix it.

Want more control? See the expanded prompt

Investigate why my collection pages don't have canonical tags. Look in theme.liquid, collection.liquid, and related snippets. Explain what's missing and write the fix.

Pattern
[Audit scope] + [Output format] + [Priority criteria] — Fudge fills in the rest (brand voice, fonts, photography, shipping, schema) from your store.
You say
Fudge fills in automatically
Collection pages don't have canonical tags
The problem
Find the cause and fix it
Desired outcome
AUTO
Looks in theme.liquid, collection.liquid, snippets
AUTO
Explains what's missing
AUTO
Best practices from auditing thousands of Shopify stores — what to look for, how to prioritize, what actually moves the needle
AUTO
Writes the fix
Key takeaways
  • Reads your actual theme code (not assumptions).
  • Identifies root cause, not symptoms.
  • Writes the fix as a queued change.
  • Documents the explanation for your team.

What you're trying to do

Most theme issues are symptoms of a root cause buried in the theme code — a missing snippet, a misconfigured section, an app that injected breaking code. Generic theme fixes don't help; you need someone (or something) to read the actual code and explain. That's what this is for.

Things to watch out for

  • Code reading — Fudge reads your actual Liquid, JS, and CSS. Not generic guidance.
  • Root cause — Fudge handles this: not 'add this line' but 'here's why this was missing'.
  • Fix queue — Fudge handles this: changes are queued, not auto-deployed.
  • Documentation — Fudge writes notes your developer can reference later.
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How Fudge does it

Fudge duplicates your live theme into a draft, makes the targeted edit (Liquid logic, JS event, conditional rendering) your prompt requires, and tests it on the draft preview. Everything starts in draft — review the diff, verify the behavior, and publish when you're ready. Your live store stays untouched.

When a theme code investigation makes sense

Theme code investigations diagnose specific functional problems — “why don’t my collection pages have canonical tags,” “why is the cart drawer broken on mobile,” “what’s making the hero load slowly.” Fudge reads the actual theme code, traces the cause, and writes the fix.

When to run this investigation

Run the investigation when you have a specific symptom you can’t explain. Generic “audit my theme” doesn’t have an outcome; specific problems have specific causes.

The investigation is also the right call when developers told you it would be a multi-day project. Often the actual fix is a one-line change Fudge can identify and apply directly.

What makes a great investigation

  • Specific problem statement — “Collection pages missing canonical tags” or “Cart drawer doesn’t open on iPhone 14 Pro.” Specific, observable, reproducible.
  • Reads actual theme code — theme.liquid, snippets, sections. Traces the cause across files.
  • Explains what’s missing or broken — the cause, not just the symptom.
  • Writes the fix — actual patch, ready to apply.
  • Tests the fix on draft theme — before recommending you ship.

Common mistakes to avoid

The biggest mistake is investigating without a clear question. “Look at my theme” doesn’t have an answer; “Why don’t my collection pages have canonical tags” does.

The second mistake is fixing without testing. Theme changes can have unexpected side effects. Always test on the draft theme first.

Pair this with canonical tag audit and fix and core web vitals audit — three complementary tools for technical theme work.

Common questions

What kinds of issues can it investigate?
Almost any theme issue — missing schema, broken layouts, JS errors, slow scripts, app conflicts.
Will it tell me to switch themes?
Only as a last resort. Fudge prefers in-theme fixes.
Can it fix Shopify app conflicts?
Yes — Fudge can identify and work around app-injected issues.

Try Fudge free

Install the Shopify app and run this exact prompt in under a minute.