When Policies Change Probabilities: Modular Decision-Making for LLM Code Review
LLM code reviewers often estimate patch risk and make approval decisions in one prompt. A probability should depend on evidence; costs should determine the action taken from it. We test whether four deployed reviewer interfaces preserve this separation using 15,792 responses on 720 candidate patches, with one that passed and one that failed an archived test harness for each of 360 repository issues. In matched calls with the patch and monitor evidence fixed, replacing an equal-cost policy with a 10:1 false-accept policy changes reported failure probabilities by 13.6 to 16.9 percentage points on average. For every reviewer, the actions returned under the high-cost prompt are worse than rej...
| Authors | Rasvik Kudum, Max Corbett, Hitansh Paliwal et al. |
|---|---|
| Primary category | cs.SE |
| Published | 2 August 2026 |
| Last updated at source | 2 August 2026 |
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