What is Code Provenance?
Governance & ControlThe record of where a line of code came from: which model or person wrote it, which sources it drew on, what license those sources carried, and who approved the merge. For generated code it is the difference between an asset and an unknown liability.
Why It Matters
When a person writes a function, the provenance is implicit: a named author, a commit message, a review, an employment contract that assigns the work. When an assistant drafts the same function, every one of those assumptions needs to be recorded on purpose.
Three questions drive the concern. Did the code come from a source with a license that constrains how you may ship it? Does the repository’s own policy permit this class of change from this tool? And when an incident review asks who introduced the behavior, can you answer with evidence rather than a guess?
How It Works
Provenance attaches to the change rather than to the file. Each commit carries the authoring tool and version, the model and prompt version where one applied, the reviewer who approved the merge, and the policy verdict that allowed it through. That set of fields is what makes the change reconstructable months later, and it is the same record the runtime keeps for agent actions.
For license posture, the check runs at generation time and again at merge. A generated block that closely matches a copyleft source is a legal question, and it needs to surface before the merge rather than during diligence.
Where It Breaks
Most teams record the tool and stop there. “Written with an assistant” does not answer the license question or the accountability question, and it does not survive contact with an auditor.
The subtler failure is provenance that exists but cannot be trusted. If the record is written by the same model that produced the code, it is a claim rather than evidence. The record has to come from the pipeline that observed the change.
Retention is the third break. Provenance kept for ninety days answers last quarter’s incident review and nothing else. Repositories outlive incidents by years.
How Flytebit Handles It
Every change in the pipeline carries its provenance into the decision record: the authoring tool, the model and prompt versions, the review findings, the policy verdict, and the named approver. License and policy checks run before merge, and the workload identity of the agent that prepared the change is recorded alongside it. Nothing in that record is authored by the model being recorded. The review method behind it is in the AI Code Review Guide, and the industry application is on our Software & Technology page.