Observed arrival · 2026-10-23

Arnold puts an F# language server inside code review

arnoldapp.dev Visit website

Editorial interest 83/100 Selection signal · not a rating of the site

A free, open-source desktop app for macOS and Windows that helps developers review AI-agent-written F# from commit through Azure DevOps pull request.

Landing page captured for the 2026-10-23 issue.

For: F# developers reviewing AI-agent changes
Worth noticing: It checks FsAutoComplete against NuGet’s SHA-512 hash and can format only staged lines before commit.

Field notes

Arnold starts FsAutoComplete when an F# file first appears, verifies the download against NuGet’s SHA-512 hash, and checks daily for a newer release. For branch work, it creates a checkout (a worktree when needed), restores tools and packages, and builds referenced C# projects; the page says review does not wait for that preparation. The described flow extends from staged and unstaged changes through pushing and Azure DevOps pull-request discussions, including posting code suggestions.

Observed signals

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Editorial observations of this landing page, not a rating.

○OpenPublic substance visible

✦PrettyNotable craft visible

●ProPolished or operationally mature

◎NicheUnusually specific use

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