Files
supabase/apps/studio
claude[bot]andClaude f0e0865acc chore(studio): promote zero-baseline eslint ratchet rules to error (#50977)
<!-- ccr-slack-attribution -->
_Requested by **Charis Lam** · [Slack
thread](https://supabase.slack.com/archives/C0161K73J1J/p1790599888647059?thread_ts=1790599888.647059&cid=C0161K73J1J)_

## Problem

The Studio ESLint "ratchet"
(`apps/studio/scripts/ratchet-eslint-rules.ts`, baseline in
`apps/studio/.github/eslint-rule-baselines.json`, tracked rules in
`apps/studio/scripts/ratchet-rules.json`) lets certain rules stay at
`warn` severity while CI blocks the *count* of violations from
increasing. Several of those tracked rules had already reached a
baseline of 0 allowed violations, meaning there's nothing left to
ratchet — they should be enforced directly instead of tracked
indirectly.

## Solution

**Before:** `no-restricted-imports`, `jsx-a11y/aria-props`,
`jsx-a11y/aria-proptypes`, `jsx-a11y/role-supports-aria-props`,
`jsx-a11y/anchor-has-content`, `jsx-a11y/aria-role`,
`jsx-a11y/no-aria-hidden-on-focusable`, `jsx-a11y/tabindex-no-positive`,
`jsx-a11y/no-distracting-elements`, and `react-hook-form/no-use-watch`
were all tracked in the ratchet baseline with a count of 0, and (apart
from `no-restricted-imports`, see below) configured as ESLint `warn` in
`apps/studio/eslint.config.cjs`.

**After:** each of those rules is removed from
`apps/studio/.github/eslint-rule-baselines.json` (both the `rules` count
and the now-empty `ruleFiles` entry) and from
`apps/studio/scripts/ratchet-rules.json`. Their severity in
`apps/studio/eslint.config.cjs` is bumped from `warn` to `error` so
they're enforced directly by lint going forward instead of being tracked
via the ratchet. `no-restricted-imports` was a special case: a later
config block in `apps/studio/eslint.config.cjs` already overrides the
shared `warn` default with `error` (confirmed via `eslint
--print-config`), so only the ratchet bookkeeping needed removing for
that rule — no severity change was needed.

Promoting `jsx-a11y/role-supports-aria-props` to `error` surfaced one
real violation that the ratchet's non-test-file filter had been hiding:
a mock `<button>` in `LocalDropdown.test.tsx` set `aria-checked`, which
that role doesn't support. Removed the unused `aria-checked` attribute
from the mock (it wasn't asserted on by any test).

Every other rule still tracked by the ratchet (e.g.
`@typescript-eslint/no-explicit-any`, `react-hooks/exhaustive-deps`,
`no-restricted-exports`, …) has a baseline above 0 and was left
untouched.

### How verified

- `pnpm --filter studio run lint:ratchet` → `Stable: No regressions for
selected rules.`
- `pnpm --filter studio run lint` → `0 errors, 2430 warnings` (no new
errors from the severity bumps)
- `npx vitest run components/interfaces/LocalDropdown.test.tsx` → 3/3
passing after the mock fix
- `npx prettier --check` on all touched files → clean
- `npx tsc --noEmit` shows one pre-existing, unrelated error in
`packages/ui-patterns` (reproduced identically on `master` before this
change)

## Review instructions

1. Confirm `apps/studio/.github/eslint-rule-baselines.json` and
`apps/studio/scripts/ratchet-rules.json` no longer list the 10 rules
named above.
2. Confirm those same rules (except `no-restricted-imports`, already
`error`) are now `'error'` in `apps/studio/eslint.config.cjs`.
3. Run `pnpm --filter studio run lint:ratchet` and `pnpm --filter studio
run lint` locally to confirm both pass.

## Checklist

Check all before review:

- [x] I have read
[CONTRIBUTING.md](https://github.com/supabase/supabase/blob/master/CONTRIBUTING.md)
- [ ] If I wrote a new docs topic or edited an existing topic, I used
the `/write-the-docs` or `/edit-the-docs` skill, which applies the docs
[style
guide](https://github.com/supabase/supabase/tree/master/apps/docs/style-guide)

🤖 Generated with [Claude Code](https://claude.com/claude-code)

https://claude.ai/code/session_01LZThbcWV5U1r5cvUDKPVQP

---
_Generated by [Claude
Code](https://claude.ai/code/session_01LZThbcWV5U1r5cvUDKPVQP)_

Co-authored-by: Claude <noreply@anthropic.com>
2026-09-28 14:08:30 +00:00
..

Supabase Studio

A dashboard for managing your self-hosted Supabase project, and used on our hosted platform. Built with:

What's included

Studio is designed to work with existing deployments - either the local hosted, docker setup, or our CLI. It is not intended for managing the deployment and administration of projects - that's out of scope.

As such, the features exposed on Studio for existing deployments are limited to those which manage your database:

  • Table & SQL editors
    • Saved queries are unavailable
  • Database management
    • Policies, roles, extensions, replication
  • API documentation

Managing Project Settings

Project settings are managed outside of the Dashboard. If you use docker compose, you should manage the settings in your docker-compose file. If you're deploying Supabase to your own cloud, you should store your secrets and env vars in a vault or secrets manager.

How to contribute?

  • Branch from master and name your branches with the following structure
    • {type}/{branch_name}
      • Type: chore | fix | feature
      • The branch name is arbitrary — just make sure it summarizes the work.
  • When you send a PR to master, it will automatically tag members of the frontend team for review.
  • Review the main contributing guide to help test your feature before sending a PR.
  • The Dashboard is under active development. You should run git pull frequently to make sure you're up to date.

Developer Quickstart

Note

Supabase internal use: To develop on Studio locally with the backend services, see the instructions in the internal infrastructure repo.

# You'll need to be on Node v22
# in /studio

## For external contributors
pnpm install # install dependencies
pnpm run dev # start dev server

## For internal contributors
## First clone the private supabase/platform repo and follow instructions for setting up mise
mise studio  # Run from supabase/platform alongside `mise infra`

## For all
pnpm run test # run tests
pnpm run test -- --watch # run tests in watch mode

Running within a self-hosted environment

Follow the self-hosting guide to get started.

cd ..
cd docker
docker compose -f docker-compose.yml -f ./dev/docker-compose.dev.yml up

Once you've got that set up, update .env in the studio folder with the corresponding values.

POSTGRES_PASSWORD=
SUPABASE_ANON_KEY=
SUPABASE_SERVICE_KEY=

Then run the following commands to install dependencies and start the dashboard.

npm install
npm run dev

If you would like to configure different defaults for "Default Organization" and "Default Project", you will need to update the .env in the studio folder with the corresponding values.

DEFAULT_ORGANIZATION_NAME=
DEFAULT_PROJECT_NAME=