prview

prview

prview analyzes a GitHub pull request and prints a structured report in your terminal. It combines heuristic analysis (scope, risks, blame-based reviewer suggestions) with AI (Anthropic Claude) to produce a verdict.

Install

go install github.com/drpaneas/prview@latest

Or build from source:

git clone https://github.com/drpaneas/prview.git
cd prview
go build -o prview .

Setup

Two environment variables are required:

export GITHUB_TOKEN=ghp_...
export ANTHROPIC_API_KEY=sk-ant-...

Usage

prview owner/repo#number
prview https://github.com/owner/repo/pull/123

The report opens in a scrollable TUI. Navigate with j/k, page with f/b, jump to top/bottom with g/G, quit with q.

Options

--persona-dir DIR    directory with devlica personas (required when reviewers are found)
--model MODEL        Anthropic model to use (default: claude-sonnet-4-20250514)

When the PR touches files with git blame data, prview suggests reviewers and generates a persona-based review using pre-crawled devlica profiles. If --persona-dir is not set, the persona review is skipped with a warning. Generate personas with devlica <username> before running prview.

What the report contains

1. AI-slop detection (requires aislop on PATH)
2. PR header and CI status
3. Scope and complexity breakdown
4. What the PR does, before vs. after
5. Potential issues and review questions
6. Test coverage assessment
7. Risk flags (ignored errors, goroutines, hardcoded values, ...)
8. Suggested reviewers (from git blame)
9. Persona-based review (requires --persona-dir)
10. Verdict: approve, request changes, or discuss