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About FlagShark
So we automated it.
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. Once a flag is fully rolled out, removing it falls to the bottom of everyone's priority list. Weeks become months. Months become years.
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 long 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
Research shows that 73% of feature flags never get removed. They accumulate silently — adding complexity, slowing onboarding, and hiding subtle bugs behind conditional paths that no longer matter.
The cost compounds quickly. The average team spends 2.5 hours cleaning up a single flag, and most organizations carry enough flag debt to cost $125k+ per year in lost productivity.
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.
Tree-sitter parses your code into an abstract syntax tree. We match flag provider method calls structurally — no false positives from comments or strings. 100% accurate detection across 12 languages.
No AI hallucinations or probabilistic guesses. The same input always produces the same output. Every cleanup PR is a mechanical, verifiable transformation.
FlagShark opens PRs you review and merge like any other. Your CI runs, your tests pass, you click merge. No new tools to learn, no context switching.
We request read-only access, never store your source code, and process everything in isolated, ephemeral environments. We only persist flag metadata.