LLMs fail at debugging code changes - change aware debugging assistant

Executive Summary

LLMs give generic answers when asked why a deployment regressed because they lack change context. Build a change aware debugging assistant that ingests diffs, CI/test failures, and telemetry to produce precise root cause leads. The dev workflow now exposes richer, machine readable signals - commit metadata in code hosts, CI logs, structured test runners, deploy metadata, and distributed tracing in observability platforms. The source article highlights that LLMs fail because they do not receive change-aware, narrow context. Modern CI/CD pipelines and feature flagging make it practical to capture the exact delta and associated telemetry at deploy time, enabling an assistant to give precise root cause leads rather than generic advice. Stage 1 validation flagged developers as the target, daily recurrence, and moderate payer evidence, indicating both frequent incidence and budget-holder alignment. Combine short lived, change-centered context streams - commit diffs, CI/test outputs, recent deploy metadata, and selective traces/log slices - to create a high signal input for an LLM. The source article argues the failure pattern is missing change-aware inputs. Packaging this as a CI/IDE plugin plus lightweight runtime instrumentation creates immediate utility and a workflow lock-in because the product lives in the deploy/CI loop and developer editor. Over time anonymized pairs of diffs, failing test signals, and triage outcomes can form a proprietary dataset to improve models for change-cause inference.