Repeatability
Medium
The mechanical steps—parse files, diff ASTs, group similar actions—are repeatable. But each codebase has idiosyncratic authorization logic and edge cases that make the extraction decision non-uniform across instances.
Ambiguity Tolerance
Low
Success criteria are fuzzy: 'nearly identical' has no hard threshold, and whether the generated concern is correct depends on runtime behavior the agent cannot verify without tests. The agent cannot know when it's truly done.
Data & Tool Availability
High
The agent needs read access to the 12 controller files and write access to create a branch and open a PR—both are straightforward to grant via GitHub API or local filesystem. No external dependencies are required.
Error Cost
High
A wrong abstraction can silently break authorization checks or alter JSON rendering behavior across many endpoints. The PR format limits blast radius, but a careless merge could introduce security regressions that are hard to trace.
Human Judgment Required
High
Deciding which differences between 'similar' actions are incidental versus load-bearing requires deep knowledge of the app's domain and security model. A human Rails developer must validate every extraction before the code ships.