Debuggingintermediate

Fix a Permission Denied Database Error

A structured diagnostic prompt that finds the real cause of an access error instead of widening your security.

When to use it

Debugging

Lovable Prompt

I am getting a permission error when [DESCRIBE THE ACTION]. The exact error text is:

[PASTE THE FULL ERROR]

Diagnose it in this order and tell me what you find at each step before changing anything:
1. Are the correct table privileges granted for the role making this request?
2. Does a policy exist for this exact operation on this table?
3. Can the policy condition ever be true for this user?
4. Is the request actually authenticated, and is the session reaching the server?

Then fix the real cause.

Do NOT make any policy permissive to make the error disappear, and do not disable row level security.

Build your version of this prompt

Fill in your details and the prompt below updates as you type. Anything you skip stays as a square-bracket placeholder so you can see what's still missing.

Your prompt

I am getting a permission error when [Describe the action]. The exact error text is:

[Paste the full error]

Diagnose it in this order and tell me what you find at each step before changing anything:
1. Are the correct table privileges granted for the role making this request?
2. Does a policy exist for this exact operation on this table?
3. Can the policy condition ever be true for this user?
4. Is the request actually authenticated, and is the session reaching the server?

Then fix the real cause.

Do NOT make any policy permissive to make the error disappear, and do not disable row level security.

2 fields still empty — the prompt works better when they're filled in.

How to use this prompt

Fill in the fields above — plain language beats jargon.
Copy the prompt and paste it into Lovable as a single message.
Let it finish before you send anything else, then read what changed.
If the result is close but not right, describe the difference rather than restating the whole prompt.

Suggested follow-up prompt

Review what you just built for Fix a Permission Denied Database Error.

1. List anything you changed that I did not ask for, and undo it.
2. Check it works on a 375px-wide phone screen: no horizontal scrolling, tap targets at least 44px.
3. Confirm every form shows a clear error and a clear success state.
4. Tell me in plain language what is still missing before this is safe to publish.

Do not add new features in this step.

Why it works

Forcing a diagnosis before a change prevents the most common bad fix, which is widening the policy.

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Guides that use this prompt

TroubleshootingTroubleshooting

How to Fix Row Level Security Errors

A diagnostic order for permission errors: privileges, policy existence, policy logic, then session state.

intermediate 9 minChecked 24 Aug 2026

TutorialTroubleshooting

How to Debug a Lovable Project

A repeatable debugging loop: reproduce, isolate, read the actual error, change one thing, verify.

beginner 9 minChecked 24 Aug 2026