From install to first cleanup PR in under five minutes.

Add eight lines of YAML to .github/workflows/

FlagShark is a published GitHub Action. You add a workflow file. That's the install.

No tokens. No flag-vendor API keys. No prod credentials. The Action runs inside your existing GitHub Actions environment and reads your code via the standard contents: read permission.

You can also install via the GitHub Marketplace one-click, or via gh extension install flagshark/flagshark if you prefer the CLI flow.

# .github/workflows/flagshark.yml
name: FlagShark cleanup
on: [pull_request]

permissions:
  contents: read
  pull-requests: write

jobs:
  scan:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - uses: flagshark/action@v1
        with:
          vendor: launchdarkly

// vendor: launchdarkly | statsig | split | configcat | flagsmith | unleash | posthog | openfeature

FlagShark opens the cleanup PR. You review. You merge.

Each finding in the comment has a link. Click it, and FlagShark opens a separate PR on your repo that removes the stale flag: deletes the dead else-branches, removes the SDK call sites, deletes orphan helper functions, updates affected tests.

The cleanup PR is a normal PR. It runs your CI. It needs a review. It targets your default branch. We never auto-merge anything. If your tests fail, the PR fails. We don't ship breakage.

You review it like any other PR. Diffs are small (median: 24 lines). Approve, merge, the flag is gone: from code, from your SDK call sites, from your mental load.

// before — packages/checkout/src/index.ts
import { useFlag } from '@launchdarkly/react';

export function Checkout() {
  const useV2 = useFlag('checkout_v2_redesign');
  if (useV2) {
    return<CheckoutV2/>;
  }
  return<CheckoutLegacy/>;
}

// after — flagshark removed 'checkout_v2_redesign'
export function Checkout() {
  return<CheckoutV2 />;
}

Also removed: 1 import, 3 references in test files, 1 unused helper function.