Install:

gem install prreview

Run this command with a PR URL:

prreview https://github.com/owner/repo/pull/123

Or use more options:

prreview --help
prreview https://github.com/owner/repo/pull/123 --diff --comments --linked-issues --prompt "Are there any security issues?"
prreview https://github.com/owner/repo/pull/123 --prompt ~/my-review-prompt.txt

--prompt accepts either the prompt text or a path to a file containing it.

Now, just paste the PR details into ChatGPT, Claude, or any LLM for review.

By default, PrReview collects only the PR title and description. Add more with flags:

• --diff — the PR diff
• --all-content — full content of changed files
• --commits — commits
• --comments — PR comments and code comments
• --linked-issues [LIMIT] — linked issues (default limit: 5)
• --optional PATHS — local files

It then copies everything to your clipboard.

Advantages over LLM integrations:

• You're free to use the LLM of your choice
• You can continue the conversation with the LLM right in the chat, asking to pay attention to a specific part of the PR
• The gem is simpler

However, in the future we might add some optional integrations.

• A well-written PR and linked issue description make a big difference — and are good practice anyway.
• Run prreview after you've thoroughly reviewed the PR. It works best when you understand the changes well.
• Don't hesitate to try different LLMs or refresh the response to see if something new comes up.
• Use --diff, --all-content, and other extra options — they can significantly improve results for some PRs.
• After the LLM responds, to potentially uncover more issues:
  • Ask "Anything else?".
  • If the response has a list of problems, try responding to each of them, giving the LLM more context.

• Ruby
• GITHUB_TOKEN environment variable. GitHub Docs

MIT License