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We experienced feature flag debt firsthand. So we built the tool we wished existed — one that automatically finds and removes stale flags, so you can focus on building.
Why we built FlagShark
After spending weeks cleaning up hundreds of stale feature flags at a previous company, I realized this was a problem every engineering team faces — but nobody had built a real solution for it.
Feature flags are essential for safe deployments and gradual rollouts. But they're meant to be temporary. The problem is, once a flag is fully rolled out, removing it falls to the bottom of everyone's priority list.
The result? Codebases littered with dead conditional logic, branching paths that no longer matter, and developers wasting hours navigating code that should have been cleaned up months ago.
FlagShark exists to solve this. Not with AI that guesses — but with precise, AST-based detection that understands your code structure. We create cleanup PRs you can review and merge with confidence.
— The FlagShark Team
Feature flag debt is a hidden cost that compounds over time
Existing solutions fall short. Flag providers profit from more flags, not fewer. Manual cleanup takes too long and gets deprioritized. AI-based tools guess instead of knowing.
FlagShark is different. We use deterministic, AST-based detection to find exactly what needs to be removed — and generate PRs you can trust.
We chose the harder path because your codebase deserves certainty, not guesswork.
Tree-sitter parsing understands your code structure, not just patterns. 100% accurate detection across 12 languages.
No AI hallucinations or probabilistic guesses. The same input always produces the same output.
Works with your existing workflow. PRs you can review, CI that runs your tests, and merges when you're ready.
The principles that guide how we build FlagShark
Technical debt slows teams down. Every stale flag adds complexity that makes your codebase harder to understand and maintain.
Developers should spend their time building features, not hunting for dead code. Automation handles the tedious work so you can focus on what matters.
We request minimal permissions, never store your source code, and process everything in isolated, ephemeral environments.
Seamless GitHub integration means FlagShark works with your existing workflow. No new tools to learn, no context switching.