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RLS Errorservice_role KeyPublishable KeyAnon KeyMCP Setup

Supabase anon key exposed: safe or dangerous?

The anon key is commonly visible in frontend apps. The real question is whether your RLS policies prevent unintended reads and writes. This page helps generate a focused fix plan.

Review anon key exposure

Confirm exposed anon access is constrained by intended RLS policies.

Issue

Pick a shortcut, then tune the settings below.

Fix settings

These controls restore the original page behavior.

Placeholders

Use schema names only. Do not paste secrets.

No secrets needed. Placeholder-only.

Anon key + RLS guidance

Visible anon keys are expected only when RLS enforces intended access. Do not treat exposure as automatically safe.

Copy in one click
publishable / anon key placement:

Frontend exposure is expected only when RLS and policies are correct; it is not automatically safe.
Public keys do not protect data by themselves.
Verify RLS on every table that is reachable from browser or mobile clients.

Safe placement pattern:
- Browser/mobile: publishable or anon key only.
- Server-only code: service_role or secret key only when a privileged operation is required.
- Public repo: never commit real keys; keep env examples as placeholders.
- Frontend env: use public keys only, and never use service_role or secret keys.

Copy outputs

Copy the companion outputs for agent repair, testing, and key placement.

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Copy AI repair prompt

Paste this into Cursor, Claude Code, or Lovable for an agent fix tailored to your schema.

Copy proof-of-fix test

Get a checklist and SQL test script to confirm the fix works as intended.

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Copy secondary RLS SQL

Use after matching placeholders to your schema and validating with the proof-of-fix test.

Launch Safety Pack

Early-access pack with 15 bundles: AI repair prompts, test scripts, policy templates, MCP guards, and more.

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