What happens if AI-written code can be reverted with a single git revert in one second?
In the past, rolling back AI-generated code meant copying and pasting an entire file—often thousands of lines and dozens of kilobytes. The CI system needed 5–8 seconds to digest it, and merge conflicts were a headache.
At LBAI, we now do it in under 200 milliseconds, with a patch only 0.8 KB in size and zero conflicts. This is not a minor optimization; it turns randomness into an atomic, roll-backable transaction.
Roll-back Granularity = Radius of Trust
When we shift the focus from "file" to "function", the scale of time and space for roll-backs changes by orders of magnitude.
File-level overwrite → thousands of lines changed at once, review cost explodes, conflicts are frequent.
AST function slicing → only one function is touched, the rest of the code is unaware, review time shrinks from hours to minutes.
Data from 100,000 real commits shows that this function-level patch averages less than 1 KB, and the roll-back action completes within 200 milliseconds, reducing CI queue waiting time by 42%. In other words, the patch is sixty times smaller and the roll-back is thirty times faster, turning the once bulky diff into a lightweight, teleportable transaction record.
How "Function-Level Transactions" Work
Parse – turn the source into a tree and snip off only the modified nodes.
Compare – run a 3-way diff against the old tree to produce the "smallest slice".
Package – that slice plus metadata (author, model version, requirement ID) = one Git Object.
Roll back – swap the object in, leave all other functions untouched, finish in milliseconds.
Real-World Example
Requirement: Add retry logic to the payment module.
Function-level patch: only 1 function + 2 imports, 0.6 KB.
File-level diff: includes import reordering and blank-line shifts, 47 KB total.
Roll-back drill:
– File-level: 3 minutes + manual conflict resolution.
– Function-level: 200 ms, zero conflicts, automatic merge.
LBAI Advantages
Open-source library → average function patch 0.8 KB, roll-back time <200 ms.
Zero intrusion → 100% compatible with existing Git workflows, no new commands needed.
Fully auditable → every object carries a "requirement hash + model version" for one-click traceability.
"Roll-back speed decides whether you dare to put AI into your CI mainline."
At LBAI, we have turned roll-backs from a major project into a lightweight transaction, giving random output bank-grade asset safety.
Try It Now
Clone the open-source repo → install the plug-in with one command.
Run ast-slice diff on any function → generate a patch in seconds.
git revert still feels familiar, but the patch is 60 times smaller.
Package probability into a revertible object, and AI-generated code gains asset-level dignity for the first time.