Scout opens right inside GitHub. It reads the whole diff the moment you arrive — then summarizes the PR, lays out the smartest order to review files, flags the risky changes, and explains any line of code you don't recognize.
Scout reads every changed file and writes a short, honest summary — what the PR does, how big it is, and what it touches. No more scrolling 40 files to figure out the intent.
Scout batches the diff into a priority queue — each file tagged by risk, with a note on why it matters. Tick a file off as you go, and click any file to jump straight to it.
Scout surfaces the changes that deserve a second look — race conditions, silent failures, breaking edits — each with a plain-language warning of what could go wrong and where to find it.
When a PR changes how the system is built, Scout shows the approach that was used and the alternative beside it — so you can weigh the trade-offs instead of reverse-engineering them.
Type a symbol or paste a snippet — applyDiscount, a regex, an unfamiliar API — and Scout answers in the sidebar with the surrounding code as context.
Hit the Scout button in GitHub's PR toolbar. The sidebar slides in alongside the diff — no new tab, no context switch.
It summarizes the change, builds a review queue, and flags critical and architectural shifts — usually before you've finished reading the title.
Work the queue, check files off, and ask Scout about anything unclear. Leave the review knowing you saw what mattered.
Add Scout to your browser and it works on every pull request you open. Free, no account required.