Safer AI-Generated Code

The agent wrote the code. You control who gets it.

The generated parser passes its tests, but older customer files have surprises. Put the new execution path behind a flag, validate it with a small audience, and retain the existing implementation for recovery.

CONTROLLED EXPOSURE

A practical walkthrough with ai-parser

The story · An AI-written parser with a reversible first release

The agent finished the parser. Production still gets a vote.

A coding agent rewrites an import parser and the tests pass. Older files can contain formats the test fixtures missed. The team wants the implementation speed while keeping the first release small.

Illustrative scenario · Real product configuration

Inside FeatBit · 3 steps

Give generated code a reversible first release.

Control the execution boundary, let internal testers go first, and keep the reviewed existing path available.

  1. 01Step 01 / 03

    Keep both parser implementations available.

    Use ai-parser to choose the implementation at the import boundary. Review and test both paths; passing generated tests alone does not cover every legacy file format.

    true
    New parser
    false
    Existing parser

    The application can select the new implementation without removing its fallback.

    Inside FeatBitLive app · Demo
    Swipe to inspect
    ai-parser → Variations

    AI-written change

    Flagged parser path

    Wrap the actual execution boundary
  2. 02Step 02 / 03

    Let the internal team try it first.

    Add an Internal parser validation rule with team = internal and serve New parser. Validate real file formats before inviting a larger audience.

    team equals
    internal
    Rule serves
    New parser

    The candidate gets production-shaped feedback inside a deliberately small pilot.

    Inside FeatBitLive app · Demo
    Swipe to inspect
    Targeting → Internal parser validation

    Internal testers

    New parser

    team = internal
  3. 03Step 03 / 03

    Retain the existing parser outside the pilot.

    Keep Existing parser as the default and OFF variation. If a legacy format fails, stop candidate exposure and inspect completed writes before retrying imports.

    Default ON / OFF
    Existing parser
    Check before retry
    Import side effects

    A flag changes future execution; it does not undo data already written.

    Inside FeatBitLive app · Demo
    Swipe to inspect
    Targeting → Existing parser fallback

    Legacy file fails

    Existing parser

    Stop exposure, then validate the fix

The next decision

Promote the change after it survives the files your tests missed.

Review parser failures and import correctness by variation. Fix the edge case, rerun both paths, and expand gradually before removing the temporary flag.

Build your own release in FeatBit

Pair runtime control with engineering review

Feature flags limit exposure when the new behavior is properly contained. Keep code review, tests, authorization, and migration checks in place, especially when generated changes touch shared or irreversible operations.

All solutions