# How GitHub improved Copilot code review by reshaping agent workflows

DevFeed: [How GitHub improved Copilot code review by reshaping agent workflows](<https://devfeed.tech/articles/better-tools-made-copilot-code-review-worse-here-s-how-we-actually-improved-it-19847.md>)

Original publisher: [Read original article](<https://github.blog/ai-and-ml/github-copilot/better-tools-made-copilot-code-review-worse-heres-how-we-actually-improved-it/>)

Author: Napalys Klicius

Published: 2026-07-10T15:57:47Z

Content type: article

Language: en

Sources: [GitHub](<https://devfeed.tech/sources/github.md>)

Topics: [GitHub Copilot code review](<https://devfeed.tech/topics/github-copilot-code-review.md>), [Code review](<https://devfeed.tech/topics/code-review.md>), [Pull Request](<https://devfeed.tech/topics/pull-request.md>), [GitHub](<https://devfeed.tech/topics/github.md>), [GitHub Copilot](<https://devfeed.tech/topics/github-copilot.md>), [Command-line interface](<https://devfeed.tech/topics/cli.md>), [Unix](<https://devfeed.tech/topics/unix.md>)

Tags: [agentic-coding](<https://devfeed.tech/tags/agentic-coding.md>), [agentic-workflows](<https://devfeed.tech/tags/agentic-workflows.md>), [ai-ml](<https://devfeed.tech/tags/ai-ml.md>), [architecture-optimization](<https://devfeed.tech/tags/architecture-optimization.md>), [cli](<https://devfeed.tech/tags/cli.md>), [code-review](<https://devfeed.tech/tags/code-review.md>), [copilot](<https://devfeed.tech/tags/copilot.md>), [developer-tools](<https://devfeed.tech/tags/developer-tools.md>), [engineering](<https://devfeed.tech/tags/engineering.md>), [github](<https://devfeed.tech/tags/github.md>), [github-copilot](<https://devfeed.tech/tags/github-copilot.md>), [github-copilot-code-review](<https://devfeed.tech/tags/github-copilot-code-review.md>), [llms](<https://devfeed.tech/tags/llms.md>), [pull-request](<https://devfeed.tech/tags/pull-request.md>), [review](<https://devfeed.tech/tags/review.md>), [unix](<https://devfeed.tech/tags/unix.md>), [workflows](<https://devfeed.tech/tags/workflows.md>)

## AI overview

GitHub describes how migrating Copilot code review to shared Unix-style exploration tools initially increased review costs and reduced issue detection in benchmarks. Rewriting the reviewer instructions around pull request workflows led to roughly 20% lower average review cost while maintaining the same review quality.

## Source excerpt

How migrating Copilot code review to shared Unix-style code exploration tools reduced review cost by reshaping agent workflows around pull request evidence. The post Better tools made Copilot code review worse. Here's how we actually improved it. appeared first on The GitHub Blog.