Focused analysis
- Input
- The diff between the base branch and the change being checked, plus a bounded repository index.
- Output
- An ordered list of affected areas, manual checks, and browser missions.
Open-source project
Preflight Scout: focused checks before release.
It starts from the diff, finds the affected flows, and collects screenshots, traces, and browser errors. You review the plan before the browser runs.
At a glance
A CLI, a browser runner, and a report.
Preflight Scout installs from npm and works with Codex or Claude Code. The repository, website, and documentation are public.
It is still a public alpha. Use it on local, preview, or staging environments with test accounts and human review before release.
How it works
The diff is the starting point.
The analysis identifies affected routes, APIs, roles, and flows. Browser rules, credentials, and risky actions are not left to the model.
Approved browser checks
- Before the run
- Missions are reviewed, and risky actions require separate approval.
- During the run
- The browser stays on the approved origin. A blocked or failed check stays in the report.
Saved output
- Files
- Screenshots, traces, console and network errors, and final observations.
- Report
- Markdown, HTML, JSON, and optional PDF. A useful check can become a Playwright test.
The project
What I built.
I handled product, architecture, implementation, documentation, and release.
- Product and architectureConfiguration contract, change analysis, LLM providers, and the review flow.
- CLI and integrationsInstallable commands, Codex and Claude Code skills, a GitHub Action, and MCP integration.
- Browser and reportsPlaywright sessions, boundary checks, evidence handling, and Markdown, HTML, JSON, and PDF reports.
- Open-source releaseVersioned npm packages, a public repository, documentation, licensing, and a dedicated website.
Links
The website, source, and report are public.
The example report uses a synthetic app. It shows the output format, not a customer case.
Software work
The same approach applies to a feature or release in an existing codebase.
I can enter a codebase, understand what changes, and carry the work through release.
Tell me about the project